PC Concepts Server SHG2 DP User Manual

Intel® SHG2 DP Server Board  
Technical Product Specification  
Intel Order Number C11343-001  
Revision 1.0  
June 2002  
Enterprise Platforms and Services Division  
Intel Order Number C11343-001  
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Intel® SHG2 DP Server Board Technical Product Specification  
Table of Contents  
Table of Contents  
1. Introduction............................................................................................................ 1  
1.1 SHG2 Architecture Overview...............................................................................2  
1.2 Document Structure and Outline .........................................................................4  
2. Processor and Chipset ......................................................................................... 6  
2.1 Overview..............................................................................................................6  
2.2 Processor Support...............................................................................................6  
2.2.1 Processor Bus Termination/Regulation/Power ..............................................7  
2.2.2 Miscellaneous Processor Subsystem Logic...................................................7  
2.2.3 Server Management Registers and Sensors .................................................7  
2.2.4 ServerWorks* Grand Champion* LE Chipset ................................................8  
2.2.5 CMIC-LE ....................................................................................................8  
2.3 Memory Subsystem.............................................................................................9  
2.3.1 Chipkill*..........................................................................................................9  
2.3.2 Memory Configuration....................................................................................9  
2.3.3 CIOB-X2...................................................................................................11  
2.4 CSB5 South Bridge ...........................................................................................11  
2.4.1 PCI Interface................................................................................................12  
2.4.2 PCI Bus Master IDE Interface......................................................................12  
2.4.3 USB Interface ..............................................................................................12  
2.4.4 BIOS Flash ..................................................................................................12  
2.4.5 Compatibility Interrupt Control .....................................................................12  
2.4.6 Power Management........................................................................................13  
2.4.7 General Purpose Input and Output Pins......................................................13  
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Intel® SHG2 DP Server Board Technical Product Specification  
2.5 Chipset Support Components ...........................................................................14  
2.5.1 Legacy I/O (Super I/O) National* PC87417VLA...........................................14  
3. Baseboard PCI I/O Subsystem ........................................................................... 18  
3.1 Overview............................................................................................................18  
3.2 64-bit/100MHz PCI-X Subsystem......................................................................18  
3.2.1 Device IDs (IDSEL)......................................................................................18  
3.2.2 64/100MHz PCI-X Arbitration.......................................................................19  
3.2.3 82544GC Gigabit Ethernet Controller..........................................................19  
3.3 64-bit/133MHz PCI-X Subsystem......................................................................19  
3.3.1 Device IDs (IDSEL)......................................................................................19  
3.3.2 64/133MHz Segment Arbitration..................................................................19  
3.3.3 Ultra 160 SCSI Controller (Adaptec* AIC- 7899) .........................................20  
3.4 Modular RAID Capable PCI Slot 6 ....................................................................20  
3.5 32-bit/33-MHz PCI Subsystem ..........................................................................20  
3.5.1 Device IDs (IDSEL)......................................................................................21  
3.5.2 32/33 MHz PCI Arbitration ...........................................................................21  
3.5.3 Network Interface Controller (NIC)...............................................................21  
3.5.4 Video Controller ...........................................................................................22  
3.6 Interrupt Routing................................................................................................23  
3.6.1 Serialized IRQ support.................................................................................26  
3.6.2 IRQ scan for PCIIRQ ...................................................................................26  
4. Clock Generation and Distribution .................................................................... 27  
5. Server Management ............................................................................................ 29  
5.1 Sahalee Baseboard Management Controller ....................................................30  
5.2 System Reset Control........................................................................................31  
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5.2.1 Power-up Reset ...........................................................................................31  
5.2.2 Hard Reset...................................................................................................32  
5.2.3 Soft Reset....................................................................................................32  
5.3 Intelligent Platform Management Buses............................................................33  
6. Error Reporting and Handling ............................................................................ 35  
6.1 Error Sources and Types...................................................................................35  
6.2 Handling and Logging System Errors................................................................35  
6.2.1 Logging Format Conventions.......................................................................35  
6.3 System Management Interrupt (SMI) Handler...................................................37  
6.3.1 PCI Bus Error...............................................................................................37  
6.3.2 Intel Xeon Processor Bus Error ..............................................................37  
6.3.3 Memory Bus Error........................................................................................37  
6.3.4 System Limit Error .......................................................................................37  
6.3.5 Processor Failure.........................................................................................37  
6.3.6 Boot Event ...................................................................................................38  
6.3.7 Chip Set Failure ...........................................................................................38  
6.4 Firmware (BMC) ................................................................................................38  
6.4.1 System Event Log (SEL) Full.......................................................................38  
6.4.2 Timestamp Clock.........................................................................................38  
6.4.3 Fault Resilient Booting.................................................................................38  
6.5 Error Messages and Error Codes......................................................................39  
6.5.1 Alert Standard Forum (ASF) Progress Codes..............................................40  
6.5.2 Power-On Self Test (POST) Codes.............................................................40  
6.5.3 POST Error Codes and Messages ..............................................................44  
6.5.4 Liquid Crystal Display (LCD)........................................................................46  
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Intel® SHG2 DP Server Board Technical Product Specification  
7. Jumpers ............................................................................................................... 48  
7.1 Hardware Configuration.....................................................................................48  
8. Connections......................................................................................................... 50  
8.1 Connector Locations .........................................................................................50  
8.2 Power Distribution Board Interface Connector ..................................................51  
8.3 SCSI Connectors...............................................................................................52  
8.4 Floppy Connector ..............................................................................................53  
8.5 IDE Connectors.................................................................................................54  
8.6 Front Panel Interface.........................................................................................55  
8.7 Processor Connector.........................................................................................56  
8.8 System Management Interfaces........................................................................60  
8.8.1 ICMB Connector ..........................................................................................60  
8.8.2 Auxiliary I2C* Connector ..............................................................................60  
8.9 Baseboard Fan Connectors...............................................................................61  
8.9.1 Fan Connector Pin-out.................................................................................63  
8.10 Standard I/O Panel Connectors......................................................................64  
8.10.1 Universal Serial Bus (USB) Interface.........................................................65  
8.10.2 Mouse and Keyboard Ports .......................................................................66  
8.10.3 Serial Ports ................................................................................................66  
8.10.4 Parallel Port ...............................................................................................67  
8.10.5 Video Port..................................................................................................68  
8.10.6 Ethernet Connectors..................................................................................68  
8.11 Connector Manufacturers and Part Numbers.................................................70  
9. General Specifications........................................................................................ 72  
9.1 Absolute Maximum Electrical and Thermal Ratings ..........................................72  
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9.2 Airflow Specification for CIOB-X2 and CMIC-LE ...............................................73  
9.3 Electrical Specifications.....................................................................................73  
9.3.1 Power Consumption.....................................................................................73  
9.3.2 Power Supply Specifications........................................................................74  
10. Mechanical Specifications.................................................................................. 78  
11. Regulatory and Integration Information ............................................................ 80  
11.1 Product Regulatory Compliance.....................................................................80  
11.1.1 Product Safety Compliance .......................................................................80  
11.1.2 Product EMC Compliance..........................................................................80  
11.1.3 Product Regulatory Compliance Markings.................................................80  
11.2 Electromagnetic Compatibility Notices ...........................................................80  
11.2.1 Europe (CE Declaration of Conformity) .....................................................80  
11.2.2 Australian Communications Authority (ACA) (C-Tick Declaration of  
Conformity)..............................................................................................................81  
11.2.3 Ministry of Economic Development (New Zealand) Declaration of  
Conformity...............................................................................................................81  
11.2.4 BSMI (Taiwan) ...........................................................................................81  
11.3 Replacing the Back up Battery .......................................................................81  
Appendix A: Glossary .................................................................................................. I  
Appendix B: Reference Documents.......................................................................... III  
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List of Figures  
Intel® SHG2 DP Server Board Technical Product Specification  
List of Figures  
Figure 1. Intel® SHG2 Server Board...............................................................................1  
Figure 2. SHG2 Server Board Placement Diagram........................................................2  
Figure 3. SHG2 Memory Bank Layout..........................................................................10  
Figure 4. SHG2 Interrupt Routing (PIC Mode)..............................................................24  
Figure 5. SHG2 Interrupt Routing (Symmetric Mode)...................................................25  
Figure 6. SHG2 Baseboard Clock Distribution .............................................................28  
Figure 7. SHG2 Sahalee BMC Block Diagram .............................................................29  
Figure 8. Basic Reset Flow...........................................................................................32  
Figure 9. Jumper Location.............................................................................................48  
Figure 10. SHG2 Baseboard Connector Identification and Locations...........................50  
Figure 11. SHG2 Board Fan Connector Locations........................................................61  
Figure 12. SHG2 System Redundant Cooling Fan Support ..........................................62  
Figure 13. SHG2 I/O Panel Connector Graphical Locations .........................................64  
Figure 14. SHG2 I/O Panel Connector Location Dimensions........................................69  
Figure 15. Output Voltage Timing..................................................................................75  
Figure 16. Turn On/Off Timing ......................................................................................76  
Figure 17. SHG2 Baseboard Mechanical Diagram 1.....................................................78  
Figure 18. SHG2 Baseboard Mechanical Diagram 2.....................................................79  
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List of Tables  
List of Tables  
Table 1. Memory DIMM Pairs.......................................................................................10  
Table 2. CSB5 GPIO Usage Table...............................................................................13  
Table 3. Serial Port Connector Pinout..........................................................................14  
Table 4. Parallel Port Connector Pinout .......................................................................15  
Table 5. Floppy Port Connector Pinout ........................................................................15  
Table 6. Keyboard Connector Pinout ...........................................................................16  
Table 7. Mouse Connector Pinout................................................................................16  
Table 8. Super I/O* GPIO Usage Table .......................................................................16  
Table 9. PCI(-X) Bus Segment Characteristics ............................................................18  
Table 10. 64/100MHz Segment Configuration IDs........................................................18  
Table 11. 64/100MHz Segment Arbitration Connections ..............................................19  
Table 12. 64/133MHz Segment Configuration IDs........................................................19  
Table 13. 64/133 MHz Segment Arbitration Connections .............................................20  
Table 14. 32/33MHz Segment Configuration IDs..........................................................21  
Table 15. 32/33MHz Segment Arbitration Connections ................................................21  
Table 16. Standard VGA Modes ...................................................................................22  
Table 17. Video Port Connector Pinout.........................................................................23  
Table 18. ADM1026* Input Definition............................................................................30  
Table 19. Temperature Sensors....................................................................................31  
Table 20: IPMB Bus Devices........................................................................................33  
Table 21. Private I2C* Bus 1 Devices ............................................................................33  
Table 22: Private I2C* Bus 2 Devices ............................................................................33  
Table 23: Private I2C* Bus 3 Devices ............................................................................34  
Table 24: Private I2C* Bus 4 Devices ............................................................................34  
Table 25: Private I2C* Bus 5 Devices ............................................................................34  
Table 26. BIOS Logging SEL List..................................................................................36  
Table 27. Event Request Message Event Data Field Contents.....................................36  
Table 28. Event Request Message Event Data Field Contents.....................................40  
Table 29. Port-80h Code Definition...............................................................................40  
Table 30. Standard BIOS POST Codes........................................................................41  
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List of Tables  
Intel® SHG2 DP Server Board Technical Product Specification  
Table 31. Recovery BIOS POST Codes........................................................................44  
Table 32. POST Error Messages and Codes................................................................45  
Table 33. SHG2 Configuration Jumper Options............................................................49  
Table 34. SHG2 Baseboard Connectors.......................................................................50  
Table 35. Main Power Connector..................................................................................51  
Table 36. +12V Power Connector .................................................................................51  
Table 37. Power Connector for I2C* Bus.......................................................................52  
Table 38. 68-pin SCSI Connector Pin-out .....................................................................52  
Table 39. Legacy 34-pin Floppy Connector Pin-out ......................................................53  
Table 40. Primary/Secondary IDE 40-pin Connector Pinout .........................................54  
Table 41. AT Front Panel Header Pinout ......................................................................55  
Table 42. Intel® Xeon™ Processor Connector Pinout...................................................56  
Table 43. ICMB Connector Pin-out................................................................................60  
Table 44. IPMB Connector Pinout.................................................................................60  
Table 45. SC5200 Fan Implementation........................................................................63  
Table 46. Fan Connector Pinout ...................................................................................63  
Table 47. I/O Panel Connectors....................................................................................65  
Table 48. USB Connector .............................................................................................65  
Table 49. Internal USB Connector.................................................................................65  
Table 50. Mouse and Keyboard Ports...........................................................................66  
Table 51. Serial A Port Connector.................................................................................66  
Table 52. Serial B Port Header: COM2/EMP ................................................................67  
Table 53. Parallel Port Connector .................................................................................67  
Table 54. Video Connector............................................................................................68  
Table 55. Ethernet Connectors .....................................................................................68  
Table 56. LAN1 10/100 LED Schemes .........................................................................69  
Table 57. LAN2 10/100/1000 LED Schemes ................................................................69  
Table 58. Baseboard Connector Manufacturer Part Numbers ......................................70  
Table 59. Absolute Maximum Electrical and Thermal Specifications............................72  
Table 60. Thermal Specification for Key Components ..................................................72  
Table 61. Airflow Specification for Key Components.....................................................73  
Table 62. SHG2 Power Budget .....................................................................................73  
Table 63. SHG2 DC Power Supply Voltage Specification.............................................74  
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List of Tables  
Table 64. SHG2 Ripple and Noise Specification...........................................................74  
Table 65. Voltage Timing Parameters...........................................................................74  
Table 66. Turn On/Off Timing........................................................................................75  
Table 67. Transient Load Requirements .......................................................................77  
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Intel® SHG2 DP Server Board Technical Product Specification  
Introduction  
1. Introduction  
This chapter provides an architectural overview of the Intel® SHG2 Server Board, including  
functional blocks and the electrical relationships.  
Figure 1 shows the functional blocks of the SHG2 baseboard.  
DIMM  
Prestonia  
Processor  
DIMM  
DIMM  
200M T/s  
100MHz 2x  
400M T/s  
100MHz 4x  
FSB  
DDR 200 CHA  
200M T/s  
100MHz 2x  
CM IC-LE  
DDR 200 CHB  
DIMM  
DIMM  
DIMM  
Prestonia  
Processor  
400MT/s  
200MHz 2x  
12G B DDR200 ECC  
M em ory (6 DIMMs)  
2-way interleaved  
800MT/s  
Front  
Panel  
USB  
400MHz 2x  
USB 1.1  
IM B  
Rear  
USB  
USB 1.1  
USB 1.1  
USB 1.1  
Rear  
USB  
ATA 100  
CSB5  
Rear  
USB  
ATA 100  
CIOBX2  
PCI 32  
PCI 32  
PCI 32  
Flash  
MRO MB Enabled  
PCI 64  
PCI 64  
BM C  
PCI 64  
Video  
Conn  
U160/  
U320  
SCSI  
Video  
SIO  
Gbit  
LAN  
LAN  
10/100  
RJ45  
Serial  
Ports  
PS/2  
Int  
Int  
RJ45  
SCSI  
Conn  
SCSI  
Conn  
Parallel  
Floppy  
Figure 1. Intel® SHG2 Server Board  
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+12V CPU Pwr  
USB  
KB/MS  
Aux Sig  
Main Pwr  
DIMM 3B  
Proc 1  
Serial A  
DIMM 3A  
DIMM 2B  
DIMM 2A  
Parallel  
Video  
DIMM 1B  
DIMM 1A  
NIC2 (Gbit)  
Proc 2  
NIC1 (10/100)  
Video  
CMIC-LE  
Serial B  
Gbit  
PCIX-1 (64/100)  
PCIX-2 (64/100)  
PCI-3 (32/33)  
Floppy  
USB  
2
4
2
0
0
1
1
Sec IDE  
Prim IDE  
BMC  
2
4
2
0
0
1
1
Front Panel  
SCSI  
CIOB-X2  
PCI-4 (32/33)  
SIO  
10/100  
NIC  
CSB5  
PCI-5 (32/33)  
PCIX-6 (64/133)  
LVD SCSI B  
LVD SCSI A  
3
3
1
1
4
3
7
3
8
6
4
3
7
3
8
6
2
5
2
5
6
6
3
3
6
3
6
3
Figure 2. SHG2 Server Board Placement Diagram  
1.1 SHG2 Architecture Overview  
The Intel® SHG2 Server Board is designed around the Intel® Xeon™ processor and the  
ServerWorks* Grand Champion* LE ServerSet* chipset. This combination provides the basis  
for a high performance system with leading edge processor, memory, and I/O performance.  
The SHG2 baseboard architecture provides for two INT3-compliant (603 pin) processor sockets  
supporting dual processing operation using Intel Xeon processors. It also contains six industry  
standard PCI and PCI-X expansion slots supporting a mixture of 32-bit/33-MHz, 64-bit/100-MHz  
and 64-bit/133-MHz slots.  
The processor baseboard provides an array of embedded I/O devices including a SCSI  
controller that provides two independent channels at SCSI bus speeds up to 160MB/sec with  
7899 SCSI controller, one embedded 10/100 Network Interface Controller (NIC), one  
10/100/1000 Gigabit Network Interface Controller, and a 2D/3D graphics accelerator.  
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Intel® SHG2 DP Server Board Technical Product Specification  
Introduction  
Server management and monitoring hardware are also included. These features, and the  
others listed below, make this one of the most highly integrated server boards in this class.  
SHG2 supports two interleaved memory channels at 100 MHz, each utilizing the rising edge  
and falling edge of the clock cycle for 200MT/s per channel (also known as “double pumped”)  
for a combined throughput of 400 MT/s. The subsystem was originally intended for PC1600  
DDR memory modules (DDR200), however up to 6 DDR200 of DDR266 registered memory  
modules (PC1600 or PC2100 DIMMs) inserted as pairs may be used. Each DIMM may provide  
up to 2 GB of memory capacity, providing up to 12 GB of system memory.  
Note: Although the use of DDR266 modules is supported for upward compatibility, the channel  
throughput is fixed at 400 MT/s, and the use of higher speed DIMMs will not provide additional  
bandwidth. Mixed memory is not recommended, all DIMM sites should be populated with the  
same speed and, when possible, same manufacturer.  
The SHG2 server board provides the following features:  
Dual Intel Xeon processor support.  
-
-
Two processor sockets for installation of one to two identical Intel Xeon processors.  
Embedded VRMs to support two Xeon processors.  
ServerWorks Grand Champion LE chipset.  
-
-
-
Champion Memory and I/O Controller-Low End (CMIC-LE).  
Champion South Bridge (CSB5).  
Champion I/O Bridge (CIOBX2).  
Support for 6 DDR registered ECC Synchronous Dynamic RAM (SDRAM) DIMMs.  
-
Error Correcting Code (ECC) single-bit correction, and multiple-bit error detection  
and memory scrubbing.  
-
Supports Chipkill* technology  
32-bit, 33-MHz 5V keyed PCI segment with three expansion connectors and two  
embedded devices with external connectors.  
-
One PCI NIC—Intel 82550PM Fast Ethernet Controller with a dedicated RJ-45  
connector at the rear I/O panel  
-
3D/2D Graphics Accelerator —ATI* RAGE XL Video Controller with DB15 VGA  
connector at the rear I/O panel  
64-bit, 100-MHz, 3.3V PCI-X segment with two expansion connectors and one  
embedded device.  
-
One PCI-X network interface controller—Intel 82544GC Gigabit Ethernet Controller  
with a dedicated RJ-45 connector at the rear I/O panel  
64-bit, 133-MHz, 3.3V PCI-X segment with one expansion connector and one  
embedded device.  
-
Dual Channel Ultra* 160 SCSI Controller—Adaptec* 7899 SCSI Controller.  
Note: When the 7899 SCSI Controller is enabled, this bus segment will run at 66MHz in  
PCI mode. When disabled, the segment is capable of 133MHz PCI-X mode.  
X-bus segment with one embedded device.  
-
8-Mbit flash device for system BIOS.  
LPC bus segment with two embedded devices.  
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Intel® SHG2 DP Server Board Technical Product Specification  
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-
Super I/O* controller chip providing all PC-compatible I/O (floppy, parallel, serial,  
keyboard, mouse).  
Sahalee Baseboard Management Controller (BMC) providing monitoring, alerting,  
and logging of critical system information obtained from embedded sensors on  
baseboard.  
Four Universal Serial Bus (USB) ports.  
Two 68 pin Ultra SCSI connectors, supporting two SCSI U-160 channels  
Two 40 pin fast ATA (IDE) connectors, supporting two ATA 33/66/100 channels  
1.2 Document Structure and Outline  
The information contained in this document is organized into 11 chapters. The content of each  
chapter is summarized below:  
Chapter 1:  
Introduction  
Architectural overview of the Intel SHG2 Server Board showing functional blocks  
and identifying major features.  
Chapter 2:  
Chapter 3:  
Processor and Chipset  
Detailed description of the chipset and the supported processors.  
Baseboard PCI I/O Subsystem  
Detailed descriptions of the PCI I/O subsystem. Three PCI buses are detailed,  
with specifics on embedded devices and provided slots. Interrupt routing  
information is also provided.  
Chapter 4:  
Chapter 5:  
Clock Generation and Distribution  
Identification of the clock signals generated and used on the SHG2 server board,  
and detailed drawings of their implementation.  
Server Management  
Detailed description of the server management hardware integrated on the  
SHG2 baseboard. I2C* addresses and block diagrams are provided.  
Chapter 6:  
Chapter 7:  
Chapter 8:  
Error Handling and Reporting  
Defines how errors are handled by the system BIOS and SHG2 server board.  
Jumpers  
Identification and description of all jumpers used on the SHG2 server board.  
Connections  
Identification of all connectors on the SHG2 server board, by ‘CN’ number and  
manufacturer's part number. Interfacing specifics are identified where applicable.  
Chapter 9:  
General Specifications  
Description of operational parameters and considerations, and other hardware  
specifications.  
Chapter 10: Mechanical Specifications  
Mechanical drawings of the Intel SHG2 Server Board.  
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Introduction  
Chapter 11 Regulatory and Integration Information  
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Processor and Chipset  
Intel® SHG2 DP Server Board Technical Product Specification  
2. Processor and Chipset  
2.1 Overview  
The Intel SHG2 Server Board consists of one to two identical Intel Xeon processors, the Grand  
Champion LE chipset, and support circuitry. The baseboard houses two surface mount zero  
insertion force (ZIF) processor sockets and one embedded processor voltage regulator module  
(VRMs) to power one or both processors. The ServerWorks* Grand Champion LE chipset  
provides the 36-bit address/64-bit data processor host bus interface, operating at 100 MHz in  
the AGTL+ signaling environment. The Grand Champion Memory and I/O Controller (CMIC-LE)  
provides an integrated memory controller, a high-speed I/O connection (IMB) to the PCI-X  
bridge (CIOB-X2) and a connection (Thin IMB) to the south bridge (CSB5) for legacy devices  
and the PCI segment. The server board supports up to 12 GB of ECC memory, using 2GB  
DDR-registered PC1600 or PC2100 SDRAM DIMMs.  
Additional descriptions and features include the following:  
ServerWorks Grand Champion LE chipset providing an integrated I/O bridge and  
memory controller, and a flexible I/O subsystem core (PCI) optimized for multiprocessor  
systems and standard high-volume (SHV) servers.  
Dual (603 pin) processor sockets that accept the Intel Xeon processors.  
Processor host bus AGTL+ supported circuitry, including termination power supply.  
Integrated APIC signals support.  
Miscellaneous logic for reset configuration, processor presence detection, ITP port, and  
server management.  
2.2 Processor Support  
SHG2 specifically supports IntelXeon processors from 1.8 GHz to 2.6 GHz, with 512 KB of L2  
advanced transfer cache.  
The processor is packaged in a 603-pin micro- Pin-Grid Array (PGA) and provides an integrated  
heat spreader (IHS) for heat sink attachment.  
The Intel Xeon processor socket that conforms to the 603-pin Socket Design Guidelines is a  
surface mount technology (SMT); ZIF socket using soldered ball attachment (BGA) to the  
platform.  
As with previous versions of Intel® Pentium® Pro processors, the Intel Xeon processor external  
interface is designed to be DP-ready. Each processor contains a local advanced  
programmable interrupt controller (APIC) section for interrupt handling. When two processors  
are installed, both processors must be of identical revision, core voltage, cache voltage, and  
bus/core speeds.  
Note: When using only one processor in the system, install the processor into the primary  
socket (PROC1, closest to the corner of the board). This will enable on-die termination on the  
end-agent processor the for system to function properly. The BMC will not allow DC power to  
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Processor and Chipset  
be applied to the system unless primary slot is populated with a processor, unless used in fault  
resilient booting (FRB) mode (details in Section 5).  
When using two processors, notice that the processor pins are physically 180 degrees out-of-  
phase. Improper processor installation may permanently damage processor pins.  
2.2.1  
Processor Bus Termination/Regulation/Power  
The termination circuitry required by the Intel Xeon processor bus (AGTL+) signaling  
environment, and the circuitry to set the AGTL+ reference voltage, are implemented directly on  
the processors. The baseboard provides 1.5 V AGTL+ termination power (VTT), and VRM 9.1-  
compliant DC-to-DC converters to provide processor power (VCC_P) at each socket. The  
baseboard provides two embedded VRMs to power the processors, which derive power from  
the +5 V and 12 V supplies. Both processors share the same VRM to power their core.  
2.2.2  
Miscellaneous Processor Subsystem Logic  
In addition to the circuitry described above, the processor subsystem contains the following:  
Reset configuration logic.  
Processor presence detection circuitry.  
Server management registers and sensors.  
2.2.2.1  
Reset Configuration Logic  
On the SHG2 platform, the BMC is responsible for configuring the processor speeds. The BMC  
uses the processor speed information (derived from the Intel Xeon processor SECC FRU  
devices) to determine the appropriate speed to program into the speed-setting device (I2C-  
based EEPROM Mux).  
The processor information is read at every system power-on. The EEMUX is set to correspond  
to the speed of the slowest processor.  
2.2.2.2  
Processor Presence Detection  
Logic is provided on the baseboard to detect the presence and identity a properly installed  
processor. This prevents system power on if an empty socket in the primary section is detected  
in the primary processor socket (labeled Proc1, located closest to the edge of the server  
board), thus preventing operation of the system with an improperly terminated AGTL+  
processor bus. The BMC checks this logic and will not turn on the system DC power until the  
bus is terminated properly with a processor in the primary socket.  
2.2.2.3  
APIC Bus  
Interrupt notification and generation for the processors is done using a front side bus (FSB)  
between local APIC, in each processor, and the I/O APIC in the CSB5 located on the  
baseboard.  
2.2.3  
Server Management Registers and Sensors  
The BMC manages registers and sensors associated with the processor/memory subsystem.  
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2.2.4  
ServerWorks* Grand Champion* LE Chipset  
The CMIC-LE, CIOB-X2, and CSB5 chips provide the pathway between processor and I/O  
systems. The CMIC-LE is responsible for accepting access requests from the host (processor)  
bus, and directing all I/O accesses to one of the PCI buses or legacy I/O locations. If the cycle  
is directed to one of the 64-bit PCI segments, the CMIC-LE communicates with the CIOB-X2  
through a private interface called the IMB bus. If the cycle is directed to the 32-bit PCI segment  
or to the CSB5, the cycle is output on the private interface between the CMIC-LE and the CSB5  
called the Thin-IMB bus. The CIOB-X2 translates the IMB bus operation to a 64-bit PCI-X  
signaling environment, operating at 100 MHz or 133 MHz (PCI Local Bus Specification 2.2 and  
PCI-X Specification 1.0a compliant).  
The IMB bus consists of two data paths, one upstream (to the CMIC-LE from the CIOB-X2) and  
one downstream (from the CMIC-LE to the CIOB-X2). The interface is 16 bits wide and  
operates at 400 MHz with double-pumped data, providing over 1.6 GB per second of bandwidth  
in each direction, or 3.2 GB per second of bandwidth in both directions concurrently.  
All I/O for the SHG2 server board, including PCI-X, is directed through the CMIC-LE and then  
through either the CIOB-X2 or the CSB5-provided 32-bit/33-MHz PCI bus.  
The CSB5 provides a 32-bit/33-MHz PCI bus.  
The CIOB-X2 provides a 64-bit/100-MHz PCI-X bus and the 64-bit/133-MHz PCI-X bus.  
This independent bus structure allows all three PCI buses to operate concurrently and provides  
1.2 GB per second of I/O bandwidth.  
2.2.5  
CMIC-LE  
The Champion Memory and I/O Controller (CMIC-LE) is the fourth generation product in  
ServerWorks* Champion ServerSet Technology. The CMIC-LE is built on top of the proven  
components of previous generations like the Intel® Pentium® Pro Bus interface unit, the IMB  
interface unit, and the DDR SDRAM memory interface unit.  
The CMIC-LE integrates two main functional units: 1) an integrated high performance main  
memory subsystem, and 2) an IMB bus interface that provides a high-performance data flow  
path between the processor bus and the I/O subsystem. In addition to the above-mentioned  
units, the CMIC-LE incorporates a Thin-Intra Module Bus (Thin-IMB) Interface.  
Other features provided by the CMIC-LE include the following:  
Full support of processor bus protocol with multiprocessor support.  
Full support of ECC on the memory interface.  
An in-order queue (twelve deep).  
Full support of registered DDR ECC SDRAM DIMMs.  
Addressing support for 12 GB of 2-way interleaved SDRAM with 6 DIMMs sockets.  
Memory scrubbing.  
Multiple-bit error detection and Multiple-bit error correction for 1-4 bits on one DRAM  
within the same DIMM module (Chipkill*).  
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2.3 Memory Subsystem  
Features provided in the SHG2 server board memory subsystem include the following:  
Six DIMM sockets, supporting three pairs of PC1600 (DDR200), upward compatible with  
PC2100 (DDR266) DIMMs.  
Memory can be implemented with either single-sided (one row) or double-sided (two  
row) DIMMs.  
Minimum memory capacity of 256 MB (2 x 128MB DIMMs).  
Maximum memory capacity of 12 GB (6 x 2GB DIMMs).  
The DIMM organization is x72, which includes 8 ECC check bits.  
Supports memory scrubbing, ECC single bit error correction, and multiple bit error  
detection.  
ECC from the DIMMs is passed through to the processor FSB.  
Supports Chipkill* multiple bit error detection and multiple bit error correction.  
Support for 2-way interleaved DDR SDRAM.  
The DDR SDRAM interface is comprised of 2 channels running at a frequency of 200  
MHz each for for a total interleaved transfer rate of 400MT /s.  
Note: Memory interleaving is a way to increase memory performance by allowing the system to  
access multiple memory modules simultaneously, rather than sequentially, in a similar fashion  
to hard-drive striping. Interleaving can only take place between identical memory modules.  
Note: Although the use of DDR266 modules is supported for upward compatibility, the channel  
throughput is fixed at 400 MT/s, and the use of higher speed DIMMs will not provide additional  
bandwidth. Mixed memory is not recommended, all DIMM sites should be populated with the  
same speed and, when possible, same manufacturer.  
2.3.1  
Chipkill*  
The CMIC-LE chipset supports Chipkill memory technology, which allows the system to recover  
when a multi-bit error is encountered within a single DDR SDRAM device on the same DIMM  
module. Chipkill memory technology provides protection up to, and including, a complete failure  
of a single DRAM device. The Chipkill technology incorporated in the CMIC-LE does not  
require any layout requirements on the memory boards. CMIC-LE contains the Chipkill  
algorithm and performs all the data correction logic required.  
Chipkill memory technology works by re-ordering the data from the DDR SDRAMs so that if one  
DDR SDRAM device within a module should fail, the check bit algorithm provides sufficient  
information to recover from the multi-bit data error. The correctable errors are then written to  
the system error log (SEL) for evaluation at a later time.  
2.3.2  
Memory Configuration  
Memory configuration requirements are as follows:  
DDR200 or DDR266 SDRAM-registered DIMM modules  
DIMM organization: x72 ECC  
Pin count: 184  
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DIMM capacity (in pairs): 128 MB, 256 MB, 512 MB, 1 GB and 2 GB  
Serial PD: JEDEC Rev 2.0  
Voltage Options: 2.5 V (VDD/VDDQ)  
DIMMs must be populated in pairs for a x144 wide memory data path  
Table 1. Memory DIMM Pairs  
Memory DIMM  
DIMM 1A, DIMM 1B  
DIMM 2A, DIMM 2B  
DIMM 3A, DIMM 3B  
DIMM PAIR  
Row  
1, 2  
3, 4  
5, 6  
1
2
3
DIMM Pair 3A/B  
DIMM Pair 2A/B  
DIMM Pair 1A/B  
Figure 3. SHG2 Memory Bank Layout  
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2.3.3  
CIOB-X2  
The Champion I/O Bridge (CIOB-X2) provides an integrated I/O bridge that provides a high-  
performance data flow path between the IMB and the 64-bit I/O subsystem. This subsystem  
supports 2 peer 64-bit PCI (-X) segments. Having two PCI (-X) interfaces, the CIOB-X2 is able  
to provide large and efficient I/O configurations. The CIOB-X2 functions as the bridge between  
IMB and the two 64-bit PCI (-X) I/O segments or peers.  
The IMB interface is capable of supporting 1.6 GB/s of data bandwidth in both the  
upstream and downstream direction simultaneously.  
The internal PCI (-X) arbiter implements the least-recently used algorithm to grant  
access to requesting masters.  
The CIOB-X2 is a 352-pin ball-grid array (BGA) device.  
2.3.3.1  
64/100MHz I/O Subsystem  
The 64/100MHz subsystem supports the following embedded devices and connectors:  
One PCI-X network interface controller—Intel 82544GC Gigabit Ethernet Controller with  
a dedicated RJ-45 connector.  
Two 184-pin, 3.3 V keyed, 64-bit PCI expansion slot connectors, numbered PCIX-1 and  
PCIX-2, supporting 100-MHz 3.3V-compliant PCI-X adapters, and both 66-MHz and 33-  
MHz 3.3V-compliant PCI adapters.  
2.3.3.2  
64/133 MHz I/O Subsystem  
The 64/133 MHz subsystem supports the following embedded device and connector:  
Dual Channel Ultra 160 SCSI Controller—Adaptec 7899 SCSI Controller. Note: When  
the 7899 is enabled, the PCI expansion slot connector would only be capable of running  
at 66 MHz PCI mode.  
One 184-pin, 3.3 V keyed, 64-bit PCI expansion slot connector, numbered PCIX-6  
(64/133), supporting 133-MHz 3.3V PCI-X-compliant PCI-X adapters, and MROMB  
SCSI adapters.  
2.4 CSB5 South Bridge  
CSB5 is a multi-function PCI device, housed in a 256-pin BGA device, providing a PCI-to-LPC  
bridge, PCI IDE interface, PCI USB controller, and power management controller. Each  
function within the CSB5 has its own set of configuration registers. Once configured, each  
appears to the system as a distinct hardware controller sharing the same PCI bus interface.  
In the SHG2 server board implementation, the CSB5’s primary role is to provide the gateway to  
all PC-compatible I/O devices and features. The SHG2 uses the following CSB5 features:  
PCI bus interface  
LPC bus interface  
IDE interface, with dual channel Ultra DMA 100 capability  
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Four port USB interface  
PCI-compatible timer/counter and DMA controllers  
APIC and legacy 8259 interrupt controller  
Power management  
General purpose I/O  
The following are descriptions of how each supported feature is implemented in SHG2.  
2.4.1 PCI Interface  
The CSB5 fully implements a 32-bit PCI master/slave interface, in accordance with the PCI  
Local Bus Specification, Revision 2.2. On the SHG2 baseboard, the PCI interface operates at  
33 MHz, using the 5V-signaling environment.  
2.4.2  
PCI Bus Master IDE Interface  
The CSB5 acts as a PCI-based fast IDE controller that supports programmed I/O transfers and  
bus master IDE transfers. The CSB5 supports two fast ATA-100 IDE channels, supporting two  
drives per channel. Two IDE connectors, primary and secondary, featuring 40 pins each (2 x  
20), are provided on the baseboard.  
The SHG2 ATA interface supports Ultra DMA 33/66/100 synchronous DMA mode transfers.  
2.4.3  
USB Interface  
The CSB5 contains a USB controller and USB hub. The USB controller moves data between  
main memory and the four USB connectors provided.  
The SHG2 baseboard provides three external USB connector interfaces on the rear I/O panel.  
All ports function identically and support the same bandwidth. The external connector is defined  
by the USB Specification, Revision 1.1. The SHG2 baseboard also provides a proprietary 10-  
pin internal USB header, as the fourth USB port routable to an external location such as a front  
panel (see the Section 8, Connections, for interface specifics on all connectors).  
2.4.4  
BIOS Flash  
The SHG2 baseboard incorporates a Fujitsu* 29LV800TA-90PFTN flash memory component.  
The 29LV800TA-90PFTN is a high-performance 8-Mbit memory organized as 1 MB of 8 bits  
each. There are 16 64-KB blocks within this device.  
The 8-bit flash memory provides 1024K x 8 of BIOS and non-volatile storage space. The flash  
device is directly addressed as 20-bit XBUS memory.  
2.4.5  
Compatibility Interrupt Control  
The CSB5 provides the functionality of two legacy 8259 programmable interrupt controller (PIC)  
devices, for ISA-compatible interrupt handling.  
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2.4.6  
Power Management  
One of the embedded functions of CSB5 is a power management controller. The SHG2 server  
board uses this to implement ACPI-compliant power management features. The SHG2  
supports four sleep states: S0, S1, S4, and S5.  
2.4.7  
General Purpose Input and Output Pins  
The CSB5 provides a number of general-purpose input (GPI) and general-purpose output  
(GPO) pins. Many of these pins have alternate functions, and thus all are not available. Table 2  
lists the GPI and GPO pins used on the SHG2 baseboard and gives a brief description of their  
function.  
Table 2. CSB5 GPIO Usage Table  
Pad  
V3  
W2  
W3  
W4  
Y4  
Usage  
Description  
CMIC fatal error condition  
CMIC error condition  
SCSI ID select enable  
CIOB error condition  
CMIC_FATALN  
CMIC_ALERTN  
SCSI_IDSEL_EN  
CIOB1_ALERTN  
CSB5_NMI  
CSB5 NMI condition  
Y1  
Y2  
BMC_IRQ_SMI-10  
LAN1_IDSEL_EN  
NVRAMCLR  
BMC SMI condition  
LAN1 ID select enable  
Non-volatile RAM clear status  
Allows password to be disabled  
CMOS clear status  
Monitor PCIRST# signal  
Enable Inspection Mode for factory use  
BMC system control interrupt status  
Reserved  
Secondary IDE addressbit 0  
Secondary IDE address bit 1  
Secondary IDE address bit 2  
LAN2 ID select enable  
Video ID select enable  
Enable Frimware Write Protect Mode  
BIOS flash chip select  
Y19  
V17  
U16  
V15  
T20  
T19  
T18  
Y16  
V12  
U12  
V19  
PASSDIS-00  
CMOSCLR-00  
VENDER_SEL  
F3SETUPEN-00  
BMC_SCI-10  
BMCISPMD-00  
SIDE_A+000  
SIDE_A+001  
SIDE_A+002  
LAN2_IDSEL_EN  
W20 VGA_IDSEL_EN  
U14  
Y20  
FRWPN  
ROM_CSN  
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Intel® SHG2 DP Server Board Technical Product Specification  
2.5 Chipset Support Components  
2.5.1  
Legacy I/O (Super I/O) National* PC87417VLA  
The National* PC87417VLA is integrated on the SHG2 baseboard as the Super I/O controller  
(SIO). The SIO is a Plug and Play-compatible device with ACPI-compliant controller/extender.  
The SIO provides support for the following features:  
The system real-time clock (RTC)  
Two serial ports  
One parallel port  
Floppy disk controller  
PS/2-compatible keyboard and mouse controller  
Gereral purpose I/O (GPIO) pins  
Plug and Play functions  
Power management controller  
The SHG2 baseboard provides the connector interface for the floppy, dual serial ports, parallel  
port, PS/2 mouse, and the PS/2 keyboard. See Section 8 (Connections) for connector pinout  
information. Upon reset, the SIO reads the values on GPO pins to determine its boot-up  
address configuration.  
2.5.1.1  
Serial Ports  
One 9-pin connector in a D-Sub housing is provided for serial port A, while serial port B is  
optional via cable to the rear of the chassis through a 9-pin connector. Both ports are  
compatible with 16450 and 16550A modes, and both are re-locatable. Each serial port can be  
set to one of four different COM-x ports, and each can be enabled separately. When enabled,  
each port can be programmed to generate edge- or level-sensitive interrupts. When disabled,  
serial port interrupts are available to add-in cards. The serial port pinout is shown in Table 3.  
Table 3. Serial Port Connector Pinout  
Pin  
1
Name  
DCD  
Description  
Data Carrier Detected  
2
3
4
5
6
7
8
9
RXD  
TXD  
DTR  
GND  
DSR  
RTS  
CTS  
RIA  
Receive Data  
Transmit Data  
Data Terminal Ready  
Ground  
Data Set Ready  
Request to Send  
Clear to Send  
Ring Indication Active  
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2.5.1.2  
Parallel Port  
The SHG2 baseboard provides a 25-pin parallel port connector. The SIO provides an IEEE  
1284-compliant, 25-pin bi-directional parallel port. BIOS programming of the SIO registers  
enables the parallel port and determines the port address and interrupt. When disabled, the  
interrupt is available to add in adapters. Parallel port pinouts are shown in Table 4.  
Table 4. Parallel Port Connector Pinout  
Pin  
Name  
STROBE_L  
Pin  
Name  
AUFDXT_L  
1
2
3
4
5
6
7
8
9
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
D0  
ERROR_L  
INIT_L  
SLCTIN_L  
GND  
D1  
D2  
D3  
D4  
GND  
D5  
GND  
D6  
GND  
D7  
GND  
10  
11  
12  
13  
ACK_L  
BUSY  
PE  
GND  
GND  
GND  
SLCT  
2.5.1.3  
Floppy Port  
The Floppy Disk Controller (FDC) is located in the the Super I/O controller (SIO). The SIO is  
software compatible with the PC8477, which contains a superset of the FDC functions in the  
uDP8473, NEC uPD765A, and N82077. The baseboard provides the 48-MHz clock,  
termination resistors, and chip selects. All other FDC functions are integrated into the SIO,  
including analog data separator and 16-byte FIFO. The FDC connector pinouts are shown  
below in Table 5.  
Table 5. Floppy Port Connector Pinout  
Pin  
Name  
Pin  
Name  
Pin  
Name  
1
2
3
4
5
6
7
8
9
GND  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
GND  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
GND  
FD_DENSEL  
GND  
FD_DR0_L  
GND  
FD_TRK0_L  
FD_MSEN0  
FD_WPROT_L  
GND  
N/C  
FD_MTR1_L  
FD_MSEN1  
FD_DIR_L  
GND  
Key  
FD_DRATE0  
GND  
FD_RDATA_L  
GND  
FD_INDEX_L  
GND  
FD_STEP_L  
GND  
FD_HDSEL_L  
GND  
10  
11  
FD_MTR0_L  
GND  
FD_WDATA_L  
GND  
FD_DSKCHG_L  
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Pin  
12  
Name  
FD_DR1_L  
Pin  
Name  
FD_WGATE_L  
Pin  
Name  
24  
2.5.1.4  
Keyboard and Mouse Connectors  
The PS/2-compatible keyboard and mouse connectors are mounted within a single stacked  
housing. The mouse connector is stacked over the keyboard connector. External to the board,  
they appear as two connectors. The keyboard controller is functionally compatible with the  
8042AH and PC87911. The keyboard and mouse connector pinouts are shown in Table 6 and  
Table 7  
Table 6. Keyboard Connector Pinout  
Table 7. Mouse Connector Pinout  
Pin  
Signal  
KEYDAT  
Description  
Pin  
Signal  
MSEDAT  
Description  
Mouse Data  
1
2
3
4
5
6
Keyboard Data  
1
2
3
4
5
6
(NC)  
(NC)  
GND  
Ground  
GND  
Ground  
FUSED_VCC  
KEYCLK  
(NC)  
+5 V, fused  
Keyboard Clock  
FUSED_VCC  
MSECLK  
(NC)  
+5 V, fused  
Mouse Clock  
2.5.1.5  
GPIO  
The PC PC87417VLA provides several of the GPIO pins that the SHG2 server board utilizes.  
Table 8 identifies the pin, the signal name specified in the schematic, and a brief description of  
its usage.  
Table 8. Super I/O* GPIO Usage Table  
Pin  
Usage  
Descritpion  
1,2,3 PKG_SELECT<1-3>  
5 PCIXCAP1+SW  
PKG ID  
To enable/disable pcix mode to slot6  
Power Management Event from PCIX bus  
Power Management Event from PCI bus  
Front Panel LED control  
49 PCIX_PME-10  
52 PCI33_PME-10  
51 FP_PWR_LED+00  
50 PCI66_PME-10  
Power Management Event from PCI 66bus  
2.5.1.6  
Real-time Clock  
The PC97417VLA contains a DS1287, MC146818, and PC87911-compatible RTC with external  
battery backup. The device also contains 242 bytes of general purpose battery-backed CMOS  
RAM.  
2.5.1.7  
Power Management Controller  
The PC87417VLA contains functionality that allows various events to control the power state of  
the system (power-up or power-down). This functionality can be controlled from PCI power  
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management events, the BMC, or the front panel. This circuitry is powered from stand-by  
voltage, which is present anytime the system is plugged into an AC outlet.  
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Baseboard PCI I/O Subsystem  
Intel® SHG2 DP Server Board Technical Product Specification  
3. Baseboard PCI I/O Subsystem  
3.1 Overview  
The I/O buses for the Intel SHG2 server board are both PCI-X and PCI, with one PCI and two  
PCI-X bus segments or peers. All the PCI (-X) buses comply with the PCI Local Bus  
Specification, Revision 2.2 and PCI-X Specification, Revision 1.0a. All three 64-bit slots on  
SHG2 are capable of supporting PCI-X mode (note: the 7899 on-board SCSI adapter must be  
disabled in BIOS Setup to enable PCIX-6 support of PCI-X mode). Table 9 lists the  
characteristics of the three PCI (-X) bus segments.  
Table 9. PCI(-X) Bus Segment Characteristics  
PCI Bus  
Segment  
Width  
Speed  
100MHz  
Type  
Add-in PCI Slot Support,  
Total Eight Slots  
64/100MHz 64 bit  
64/133MHz 64 bit  
PCI-X  
2 slots (64-bit/100-MHz)  
Full-length cards supported  
1 slots (64-bit/133-MHz)  
Full-length cards supported  
3 slots (32-bit 33-MHz)  
133 MHz  
33 MHz  
PCI-X  
PCI  
32/33MHz  
32 bit  
Full-length cards supported  
3.2 64-bit/100MHz PCI-X Subsystem  
64/100 MHz segment supports these embedded devices and connectors:  
Two 184-pin, 3.3 V, 64-bit PCI (-X) expansion connectors, numbered PCIX-1 (64/100)  
and PCIX-2 (64/100).  
One embedded 82544GC Gigabit Ethernet Controller.  
3.2.1  
Device IDs (IDSEL)  
All slots on this segment support PCI (X) and conform to the PCI-X Specification, Revision  
1.0a. Each device under the PCI-X host bridge has its IDSEL signal connected to one bit of  
AD[31::16], which acts as a chip select on the PCI(-X) bus segment. This determines a unique  
PCI (-X) device ID value for use in configuration cycles. Table 10 shows both the bit to which  
each IDSEL signal is attached for 64/100MHz devices, and the corresponding device number.  
Table 10. 64/100MHz Segment Configuration IDs  
IDSEL Value  
25  
Device  
PCI (X) Slot #1, PCIX-1 (64/100)  
24  
20  
PCI (X) Slot #2, PCIX-2 (64/100)  
82544GC Gigabit Ethernet Controller  
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Baseboard PCI I/O Subsystem  
3.2.2  
64/100MHz PCI-X Arbitration  
A 64/100MHz segment supports three PCI (-X) masters: slots PCIX-1 (64/100), PCIX-2  
(64/100), and 82544GC Gigabit Ethernet Controller. All PCI (-X) masters must arbitrate for PCI  
(-X) access, using resources supplied by the CIOB-X2. The host bridge PCI (-X) interface  
(CIOB-X2) arbitration lines REQx* and GNTx* are a special case in that they are internal to the  
host bridge. Table 11 defines the arbitration connections.  
Table 11. 64/100MHz Segment Arbitration Connections  
Baseboard Signals  
Device  
P1_REQN1/P1_GNTN1  
64/100MHz Slot PCIX-1 (64/100)  
P1_REQN0/P1_GNTN0  
P1_REQN2/P1_GNTN2  
64/100MHz Slot PCIX-2 (64/100)  
82544GC Gigabit Ethernet Controller  
3.2.3  
82544GC Gigabit Ethernet Controller  
The Intel 82544GC Gigabit Ethernet Controller is an integrated third-generation Ethernet LAN  
component capable of providing 1000, 100, and 10 Mbps data rates. It is a single-chip device,  
containing both the MAC and PHY layer functions.  
The 82544GC utilizes a 64 bit, 100 MHz direct interface to the PCI-X bus, compliant with the  
PCI Local Bus Specification, Revision 1.0a.  
3.3 64-bit/133MHz PCI-X Subsystem  
A 64/133 MHz segment supports these embedded devices and connectors:  
One dual channel Ultra 160 SCSI controller—Adaptec AIC7899 SCSI controller.  
Note: The AIC7899 is a PCI device, when enabled; the PCI expansion slot connector is  
limited to running at 66 MHz in PCI mode.  
One 184-pin, 3.3 V, 64-bit PCI (-X) expansion connector, numbered PCIX-6 (64/133).  
3.3.1  
Device IDs (IDSEL)  
The PCI (-X) IDSEL signal connections to S1 AD[31::11] lines for 64/133 MHz devices are  
shown in Table 12.  
Table 12. 64/133MHz Segment Configuration IDs  
IDSEL Value  
24  
25  
Device  
PCI (-X) Slot #6, PCIX-6 (64/133)  
7899 or 7902 SCSI Controller  
3.3.2  
64/133MHz Segment Arbitration  
A 64/133 MHz segment supports three PCI (X) masters: slot PCIX-6 (64/133), 7899 SCSI  
controller, and the CIOB-X2 controller. All PCI (-X) masters must arbitrate for PCI (X) access  
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Intel® SHG2 DP Server Board Technical Product Specification  
using resources supplied by the CIOB-X2. The CIOB-X2 interface arbitration connections are  
internal to the device. Table 13 defines the external arbitration connections:  
Table 13. 64/133 MHz Segment Arbitration Connections  
Baseboard Signals  
Device  
S1_REQN0/S1_GNTN0  
PCI-X Slot PCI-6 (64/133)  
S1_REQN1/S1_GNTN1  
7899 SCSI Controller  
3.3.3  
Ultra 160 SCSI Controller (Adaptec* AIC- 7899)  
The Intel SHG2 server board provides an embedded dual-function Adaptec AIC-7899 PCI (-X)  
SCSI host adapter on the 64/133 MHz segment. The AIC-7899 controller contains two  
independent SCSI controllers that share a single PCI (-X) bus master interface as a  
multifunction device, packaged in a 456-pin BGA package. Internally, each controller is  
identical, capable of supporting a data transfer rate up to 160 MB/s on a wide (16-bit) SCSI bus  
with low-voltage differential (LVD) devices. The combined available SCSI throughput of both  
channels is 320MB/s.  
In the SHG2 baseboard implementation, both controller A and controller B attach to a 68-pin,  
16-bit differential SCSI connector LVD interface. Each controller has its own set of PCI (-X)  
configuration registers and SCSI I/O registers.  
The AIC-7899 performance levels at 3.3 VIO are as follows:  
When operating in PCI mode as a 64-bit bus master, the AIC-7899 can support memory  
data transfer rates up to 533 GB/s at 66MHz, and 266MB/s at 33MHz.  
When operating in PCI mode as a 32-bit bus master, the AIC-7899 can support memory  
data transfer rates up to 266MB/s at 66MHz, and at 133MB/s at 33MHz.  
3.4 Modular RAID Capable PCI Slot 6  
The SHG2 server board supports modular RAID controller on PCI (X) Slot 6. An add-in card  
installed in this slot leverages the on-board SCSI controller along with its own built-in  
intelligence to provide a complete RAID controller subsystem on board. If a specified modular  
RAID card is installed, then SCSI interrupts are routed to the RAID card, instead of the PCI (X)  
interrupt controller, and the host-based I/O device is effectively hidden from the system. The  
SHG2 server board uses an implementation commonly referred to as “RAIDOS” to support this  
feature.  
3.5 32-bit/33-MHz PCI Subsystem  
All 32-bit/33-MHz PCI I/O for the SHG2 baseboard are directed through the CSB5. The 32/33  
MHz segment supports the following embedded devices and connectors:  
Three 120-pin, 32-bit PCI expansion connectors, numbered PCI-3 (32/330, PCI-4  
(32/33) and PCI-5 (32/33).  
PCI ATI Rage* XL Video Controller.  
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Baseboard PCI I/O Subsystem  
PCI 82550PM Network Interface Controller.  
3.5.1  
Device IDs (IDSEL)  
Each device under the PCI host bridge has its IDSEL signal connected to one bit of AD[31::16],  
which acts as a chip select on the PCI bus segment in configuration cycles. This determines a  
unique PCI device ID value for use in configuration cycles. Table 14 shows the bit to which  
each IDSEL signal is attached for 32/33 MHz devices, and the corresponding device number.  
Table 14. 32/33MHz Segment Configuration IDs  
IDSEL Value  
24  
Device  
32/33MHz Slot , PCI-3 (32/33)  
32/33MHz Slot, PCI-4 (32/33)  
32/33MHz Slot, PCI-5 (32/33)  
NIC 82550PM  
25  
20  
19  
18  
ATI RAGE* XL Video Controller  
3.5.2  
32/33 MHz PCI Arbitration  
A 32/33 MHz segment supports five PCI masters: slots PCI-3 (32/33), PCI-4 (32/33), PCI-5  
(32/33), 82550PM network controller, and the ATI RAGE* XL controller. All PCI masters must  
arbitrate for PCI access, using resources supplied by the CSB5. The host bridge PCI interface  
(CSB5) arbitration lines REQx* and GNTx* are a special case in that they are internal to the  
host bridge. Table 15 defines the arbitration connections.  
Table 15. 32/33MHz Segment Arbitration Connections  
Baseboard Signals  
D_PCIREQN/D_PCIGNTN  
D_REQN4/D_GNTN4  
Device  
32/33MHz Slot, PCI-3 (32/33)  
32/33MHz Slot, PCI-4 (32/33)  
32/33MHz Slot, PCI-5 (32/33)  
NIC 82550PM  
D_REQN2/D_GNTN2  
PCIREQN_ETHER1/PCIGNTN_ETHER1  
PCIREQN_VGA/PCIGNTN_VGA  
ATI* RAGE XL  
3.5.3  
Network Interface Controller (NIC)  
The Intel SHG2 server board supports one 10Base-T/100Base-TX network subsystem based  
on the Intel 82550PM NIC. The 82550PM is a highly integrated PCI LAN controller in a thin  
BGA 15 mm2 package. The controller’s baseline functionality is equivalent to that of the Intel  
82559, with the addition of Alert-on-LAN functionality. The SHG2 server board supports  
independent disabling of the NIC using the BIOS setup menu.  
The Intel 82550PM supports the following features:  
32-bit PCI, CardBus master interface  
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Intel® SHG2 DP Server Board Technical Product Specification  
Integrated IEEE 802.3 10Base-T and 100Base-TX compatible PHY  
IEEE 820.3u auto-negotiation support  
Chained memory structure similar to the 82559, 82558, 82557, and 82596  
Full duplex support at both 10 Mbps and 100 Mbps operation  
Low power +3.3 V device  
3.5.3.1  
NIC Connector and Status LEDs  
The 82550PM drives status LEDs on the NIC to indicate link/activity on the LAN and operational  
speed, 10- or 100-Mbps. The green LED indicates network connection when on, and TX/RX  
activity when blinking. The other green LED indicates 100-Mbps operation when it is lit and 10-  
Mbps operation when it is OFF.  
3.5.4  
Video Controller  
The Intel SHG2 server board provides an ATI Rage XL PCI graphics accelerator, along with 8  
MB of video, SDRAM, and support circuitry for an embedded super video graphics array  
(SVGA) video subsystem. The ATI Rage XL chip contains a SVGA video controller, clock  
generator, 2D and 3D engine, and RAMDAC in a 272-pin PBGA. One 2Mx32 SDRAM chip  
provides 8 MB of video memory.  
The SVGA subsystem supports a variety of modes, up to 1600 x 1200 resolution in 8/16/24/32  
bpp modes under 2D, and up to 1024 x 768 resolution in 8/16/24/32 bpp modes under 3D. It  
also supports both CRT and LCD monitors up to 100 Hz vertical refresh rate.  
The SHG2 server board provides a standard 15-pin video graphics array (VGA) connector, and  
supports disabling of the onboard video through the BIOS Setup menu or when a plug-in video  
card is installed in any of the PCI slots.  
3.5.4.1  
Video Modes  
The ATI Rage XL chip supports all standard IBM* VGA modes. Table 16 shows the 2D/3D  
modes supported for both CRT and LCD. The table also specifies the minimum memory  
requirement for various display resolution, refresh rates, and color depths.  
Table 16. Standard VGA Modes  
2D Mode  
Refresh Rate (Hz)  
SHG2 2D Video Mode Support  
16 bpp 24 bpp  
Supported Supported  
8 bpp  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
32 bpp  
Supported  
640x480  
60, 72, 75, 90, 100  
60, 70, 75, 90, 100  
60, 72, 75, 90, 100  
43, 60  
800x600  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
1024x768  
1280x1024  
1280x1024  
1600x1200  
1600x1200  
3D Mode  
70, 72  
60, 66  
Supported  
Supported  
76, 85  
Refresh Rate (Hz)  
SHG2 3D Video Mode Support with Z Buffer Enabled  
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Baseboard PCI I/O Subsystem  
640x480  
60,72,75,90,100  
60,70,75,90,100  
60,72,75,90,100  
43,60,70,72  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
800x600  
Supported  
Supported  
1024x768  
1280x1024  
1600x1200  
3D Mode  
640x480  
Supported  
Supported  
60,66,76,85  
Refresh Rate (Hz)  
60,72,75,90,100  
60,70,75,90,100  
60,72,75,90,100  
43,60,70,72  
SHG2 3D Video Mode Support with Z Buffer Disabled  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
800x600  
Supported  
1024x768  
1280x1024  
1600x1200  
Supported  
60,66,76,85  
3.5.4.2  
VGA Connector  
Table 17 shows the pinout of the VGA connector. For more information, see the ATI RAGE XL  
Technical Reference Manual.  
Table 17. Video Port Connector Pinout  
Pin  
Signal  
RED  
Description  
Analog color signal R  
Analog color signal G  
Analog color signal B  
No connect  
Pin  
Signal  
VREF  
Description  
Video Power  
1
2
3
4
5
6
7
8
9
GREEN  
BLUE  
10  
11  
12  
13  
14  
15  
GROUND  
N/C  
Video ground  
No connect  
N/C  
DDCDAT  
HSYNC  
VSYNC  
DDCCLK  
Monitor ID data  
Horizontal Sync  
Vertical Sync  
Monitor ID clock  
GROUND  
GROUND  
GROUND  
GROUND  
Video ground (shield)  
Video ground (shield)  
Video ground (shield)  
Video ground (shield)  
3.6 Interrupt Routing  
SHG2 interrupt architecture accommodates both a PC-compatible Programmable Interrupt  
Controller (PIC) mode and APIC mode interrupts through use of the integrated I/O APICs in the  
CSB5. Figure 4 shows the PIC mode interrupt routing supported in the SHG2 baseboard.  
Figure 5 shows the symmetric mode interrupt routing supported in the SHG2 baseboard.  
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Baseboard PCI I/O Subsystem  
Intel® SHG2 DP Server Board Technical Product Specification  
CSB5  
SCAN IRQ  
Timer  
IRQ 0  
Super I/O  
Keyboard  
IRQ 1  
IRQ 2  
IRQ 3  
IRQ 4  
IRQ 5  
IRQ 6  
IRQ 7  
IRQ #8  
IRQ 9  
IRQ 10  
IRQ 11  
IRQ 12  
IRQ 13  
IRQ 14  
IRQ 15  
Cascade  
Connection  
Serial Port2  
Serial Port1  
ESMINT  
FDD  
Parallel Port  
RTC  
ESMINT  
ESMINT  
Mouse  
FERR#  
P_IDE  
S_IDE  
SCAN PIRQ  
PIRQ 0  
Map PCI IRQ to  
SCSI INTA#  
i
j
j
IRQ[1,3:7, 9:12, 14,15]  
PCI  
Interrupt  
Router  
SCSI INTB#  
PIRQ 1  
PIRQ 2  
PIRQ 3  
PIRQ 4  
PIRQ 5  
PIRQ 6  
PIRQ 7  
PIRQ 8  
PIRQ 9  
PIRQ 10  
PIRQ 11  
PIRQ12  
i
1st LAN 82550  
2nd LAN 82544  
GA  
PCI Interrupts Address Index Register  
IO Address(c00h)  
PCI Interrupt Redirection Register  
IO Address(c01h)  
Slot3 intA  
Slot4 intA  
Slot6 intA  
Slot5 intA  
Slot2 intA  
Slot1 intA  
Slot1intD,Slot2intC,Slot3intB,  
Slot4intC,Slot5intB  
Slot1intB,Slot2intD,Slot3intC,  
PIRQ13  
PIRQ14  
PIRQ 15  
Slot4intD,Slot5intC,Slot6intB  
Slot1intC,Slot2intB,Slot3intD,  
Slot4intB,Slot5intD  
SCI  
Figure 4. SHG2 Interrupt Routing (PIC Mode)  
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Baseboard PCI I/O Subsystem  
Timer  
IRQ0  
IRQ1  
IRQ2  
IRQ3  
IRQ4  
IRQ5  
IRQ6  
IRQ7  
IRQ8  
IRQ9  
IRQ10  
IRQ11  
IRQ12  
IRQ13  
IRQ14  
IRQ15  
KB  
(Cascade Connection)  
SIO2  
SIO1  
ESMINT  
Floppy  
Parallel  
RTC  
ESMINT  
ESMINT  
Mouse  
CoprocessorErr  
P_IDE  
S_IDE  
PIRQ0  
PIRQ1  
PIRQ2  
PIRQ3  
PIRQ4  
PIRQ5  
PIRQ6  
PIRQ7  
PIRQ8  
PIRQ9  
PIRQ10  
PIRQ11  
PIRQ12  
PIRQ13  
PIRQ14  
PIRQ15  
SCSI Port A  
SCSI Port B  
LAN 1 82550  
LAN 2 82544  
VGA  
Slot03 INTA  
Slot04 INTA  
Slot06 INTA  
Slot05 INTA  
Slot02 INTA  
06  
05  
04  
03  
02  
01  
SLOT  
B
Slot01 INTA  
C
D
SCI  
Figure 5. SHG2 Interrupt Routing (Symmetric Mode)  
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Intel® SHG2 DP Server Board Technical Product Specification  
The XIOAPIC logic inside CSB5 has 48 entries of which 16 entries are for legacy interrupts 0-  
15, and 32 entries are for PCI interrupts. The 48 entries are implemented as three 16-entry  
XIOAPIC units. The basic building block for the XIOAPIC is a 16-entry IOAPIC.  
The SHG2 baseboard supports mapping (redirection) of any of the 32 PCI interrupt sources to  
legacy interrupts. The legacy interrupt lines after mapping logic is connected to the input of  
82559 inside of CSB5.  
3.6.1  
Serialized IRQ support  
The SHG2 baseboard supports the serialized interrupt delivery mechanism. The serialized IRQ  
(SERIRQ) consists of a start frame, a minimum of 17 interrupt request (IRQ)/ data channels,  
and a stop frame. Any slave device in quiet mode may initiate the start frame. While in the  
continuous mode, the start frame is initiated by the host controller.  
3.6.2  
IRQ scan for PCIIRQ  
The IRQ/data frame structure within the CSB5 includes the ability to handle up to 32 sampling  
channels with the standard implementation. The SHG2 baseboard has a total of 16 PCIIRQs  
that are connected through an external PCI interrupt serializer for PCIIRQ scan mechanism,  
which then serializes the PCIIRQ orders into the CSB5 IRQ/data frame structure.  
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Clock Generation and Distribution  
4. Clock Generation and Distribution  
All buses on the Intel SHG2 server board operate using synchronous clocks. Clock  
synthesizer/driver circuitry on the baseboard generates clock frequencies and voltage levels as  
required, including the following:  
100 MHz at 2.5 V logic levels - for CPU1 and CPU2, the CMIC-LE, memory buffer, and  
the ITP port.  
48 MHz at 3.3V logic levels – for CSB5 and Super I/O.  
33.3 MHz at 3.3 V logic levels – for reference clock for the PCI bus clock driver.  
Other clock sources on the Intel SHG2 server board generates:  
66/133 MHz at 3.3V logic levels – for PCI-X Slot #6 and Ultra 160 SCSI.  
100 MHz at 3.3V logic levels – DDR DIMMs, PCI-X Slot #1, #2 and Gigabit 82544GC.  
40 MHz XTAL - for 7899 SCSI Controller.  
40 MHz XTAL - for BMC.  
32.768 XTAL - for Super I/O.  
32.768 MHz - for BMC.  
25 MHz XTAL - for NIC 82550PM.  
14.318 XTAL - for main clock generator.  
Figure 6 illustrates clock generation and distribution on the SHG2 baseboard.  
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Intel® SHG2 DP Server Board Technical Product Specification  
PCI CLOCK:  
HOST CLOCK:  
100 MHz  
33 MHz  
BMC  
CPU1  
CPU2  
100 MHz  
100 MHz  
33 MHz  
NIC 82550PM  
33 MHz  
VGA  
CMIC-LE  
100 MHz  
HOST  
CLOCK  
33 MHz  
MEM CLK BUF  
ITP  
SIO  
33 MHz  
33 MHz  
33 MHz  
100 MHz  
PCI Slot #3  
PCI  
CLOCK  
BUFFER  
BUFFER  
14 MHz  
CSB5 / VGA  
SIO  
PCI Slot #4  
PCI Slot #5  
IRQ #1  
48 MHz  
48 MHz  
33 MHz  
33 MHz  
33 MHz  
33 MHz  
33 MHz  
CSB5 / SIO  
PCI CLK BUF  
IR1 #0  
CSB5  
14.318MHz  
CIOB-X2  
MEM CLOCK:  
I/O CLOCK:  
100 MHz  
100 MHz  
DIMM SLOT A1  
DIMM SLOT B1  
DIMM SLOT A2  
DIMM SLOT B2  
DIMM SLOT A3  
DIMM SLOT B3  
100 MHz  
100 MHz  
100 MHz  
100 MHz  
100 MHz  
100 MHz  
PCI-X Slot #1  
PCI-X Slot #2  
NIC 82544GC  
Primary  
100 MHz  
100 MHz  
MEM  
CLOCK  
BUFFER  
CIOB-X2  
66/133 MHz  
66/133 MHz  
66/133 MHz  
PCI-X Slot #6  
ULTRA 160  
Secondary  
100 MHz  
OTHER CLOCKS:  
AIC  
7899  
Crystal  
32.768 MHz  
Osc  
40 MHz  
BMC  
BMC  
Crystal  
32.768 MHz  
Crystal  
40 MHz  
SIO  
Crystal  
25 MHz  
82550  
Figure 6. SHG2 Baseboard Clock Distribution  
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Server Management  
5. Server Management  
The SHG2 server management features are implemented using the Sahalee BMC chip. The  
Sahalee BMC is an ASIC packaged in a 156-pin BGA that contains a 32-bit reduced instruction  
set computing (RISC) processor core and associated peripherals. Figure 7 illustrates the SHG2  
server management architecture. A description of the hardware architecture follows the  
diagram.  
Front Panel Connectors  
BASEBOARD  
DIMM SPD (6)  
spkr  
Aux. IPMB  
PROCESSOR SOCKETS  
Connector  
IERR (2)  
Hot-swap  
Backplane  
Header  
NIC #2  
NIC #1  
CPU 'Core' Temp (2)  
Thermal Trip (2)  
CPU Voltage (2)  
Hot-swap  
Backplane  
Header  
ICMB  
Transceiver  
Header  
Baseboard  
Temp 1  
Chip Set  
RI (Wake-on-Ring)  
Logic 2.5V  
BBD COM2  
EMP  
PCI PME  
FANs (6)  
To Power  
Distribution  
Board  
Chassis  
Intrusion  
INTELLIGENT PLATFORM MANAGEMENT BUS (IPMB)  
5V  
12V  
Non-volatile, read-write storage  
3.3V  
SYSTEM  
EVENT  
SENSOR  
DATA  
FRU INFO  
& CONFIG  
DEFAULTS  
-12V  
BASEBOARD  
LOG  
RECORDS  
MANAGEMENT  
CONTROLLER  
1.5V  
3.3V Standby  
(BMC)  
- Chassis ID  
- Baseboard ID  
- Power State  
CODE  
(updateable)  
RAM  
LVDS-A Term. 1  
LVDS-A Term. 2  
LVDS-A Term. 3  
LVDS-B Term. 1  
LVDS-B Term. 2  
LVDS-B Term. 3  
System I/F  
PORTS  
ACPI  
EC  
SMM-  
BIOS  
I/F  
SMS #1 SMS #2  
I/F I/F  
Platform  
Management  
Interrupt  
NMI  
SMI  
Chip set NMIs  
Chip set SMI  
System LPC Bus  
Routing  
Figure 7. SHG2 Sahalee BMC Block Diagram  
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Server Management  
Intel® SHG2 DP Server Board Technical Product Specification  
5.1 Sahalee Baseboard Management Controller  
The Sahalee BMC contains a 32-bit RISC processor core and associated peripherals used to  
monitor the system for critical events. The Sahalee BMC, packaged in a 156-pin BGA,  
monitors all power supplies, including those generated by the external power supplies, and  
those regulated locally on the server board. The Sahalee BMC also monitors SCSI termination  
voltage, fan tachometers for detecting a fan failure, and system temperature. Temperature is  
measured on each of the processors and at locations on the server board away from the fans.  
When any monitored parameter is outside of defined thresholds, the Sahalee BMC logs an  
event in the System Event Log (SEL).  
Management controllers and sensors communicate on the I2C-based Intelligent Platform  
Management Bus (IPMB). Attached to one of its private I2C bus is Heceta5*, an ADM1026*,  
which is a versatile systems monitor ASIC. Some of its features include:  
Analog measurement channels  
Fan speed measurement channels  
General-Purpose Logic I/O pins  
Remote temperature measurement  
On-chip temperature sensor  
Chassis intrusion detect  
Table 18 details some of the inputs on the Heceta5 (ADM1026) as used on the SHG2 server  
board.  
Table 18. ADM1026* Input Definition  
Pin ADM1026 Signal Name  
Type  
External Signal Name / Function  
CPU2_IERR / CPU2 IERR  
1
GPIO9  
Digital Input  
Digital Input  
Digital Output  
Digital Output  
Digital Input  
Digital Input  
Digital Input  
Digital Input  
Digital Input  
Digital Input  
Digital Input  
2
GPIO8  
CPU1_IERR / CPU1 IERR  
3
FAN0/GPIO0  
FAN1/GPIO1  
FAN2/GPIO2  
FAN3/GPIO3  
FAN4/GPIO4  
FAN5/GPIO5  
FAN6/GPIO6  
FAN7/GPIO7  
SCL  
ADM_DIS_CPU1_L / CPU1 Stop Clock  
ADM_DIS_CPU2_L / CPU2 Stop Clock  
Not connected / None  
4
5
6
Not connected / None  
9
ADM_INTR / Control INTR signal for frequency select  
ADM_NMI / Control NMI signal for frequency select  
ADM_A20MN / Control A20MN signal for frequency select  
ADM_IGNNEN / Control IGNNEN signal for frequency select  
10  
11  
12  
13  
SM3_CLK / Open-drain Serial Bus Clock. Requires 1k pull-up  
resistor.  
14  
16  
SDA  
Digital I/O  
SM3_DATA / Serial Bus Data. Open-drain output. Requires 1k  
pull-up resistor.  
CI (Chassis Intrusion)  
Digital Input  
FRONTOPEN+03 / An active high input which captures a  
Chassis Intrusion event in Bit 7 of Status Register 4. This bit will  
remain set until cleared, so long as battery voltage is applied to  
the VBAT input, even when the ADM1026 is powered off.  
18  
19  
30  
PWM  
Digital Output  
Digital Output  
ADM_FAN_PWM / Pulse-width modulated output for control of  
fan speed. Open drain.  
RESET_STBY  
RST_BMCRST_L / Power-on Reset. 5 mA driver (open drain),  
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Pin ADM1026 Signal Name  
Type  
External Signal Name / Function  
active low output with a 200 ms minimum pulse width. This is  
asserted whenever 3.3VSTBY is below the reset threshold. It  
remains asserted for approx. 200ms after 3.3VSTBY rises  
above the reset threshold.  
30  
31  
32  
33  
34  
35  
43  
44  
45  
46  
47  
48  
P5VIN  
Analog Input  
Analog Input  
Analog Input  
Analog Input  
Analog Input  
Analog Input  
Digital Input  
Digital Input  
Digital Input  
Digital Input  
Digital Input  
Digital Input  
VP50 / Monitors +5 V supply  
N12VIN  
P12VIN  
VCCP  
XN12 / Monitors -12 V supply  
XP12 / Monitors +12 V supply  
VCC_P / Monitors processor core voltage (0 to 3.0 V)  
ADM_VCC25 / Monitors +2.5V supply  
VDD15 / Monitors VTT supply  
AIN7  
AIN6  
GPIO15  
GPIO14  
GPIO13  
GPIO12  
GPIO11  
GPIO10  
CPU2_THERMTRIPN / CPU2 Thermal Trip  
CPU1_THERMTRIPN / CPU1 Thermal Trip  
CPU2_PROCHOTN / CPU2 Processor Hot  
CPU1_PROCHOTN / CPU1 Processor Hot  
SC1TERMOFF+00 / SCSI Channel A Termination Off  
SC2TERMOFF+00 / SCSI Channel B Termination Off  
Eight-bit ‘analog’ readings for the following system temperatures are provided, described in  
Table 19.  
Table 19. Temperature Sensors  
Temperature Sensor  
Primary Processor  
Description  
Resolution  
8-bit  
Accuracy  
Primary processor socket thermal sensor  
Secondary processor socket thermal sensor  
+/- 5°C or better  
+/- 5°C or better  
Secondary Processor  
8-bit  
5.2 System Reset Control  
Reset circuitry on the Intel SHG2 server board looks at resets from the front panel, CSB5, in-  
target probe (ITP), and the processor subsystem to determine proper reset sequencing for all  
types of resets. The reset logic is designed to accommodate a variety of ways to reset the  
system, which can be divided into the following categories:  
Power-up reset  
Hard reset  
Soft (programmed) reset  
The following subsections describe each type of reset.  
5.2.1 Power-up Reset  
When the system is disconnected from AC power, all logic on the server board is powered off.  
When a valid input (AC) voltage level is provided to the power supply, 3.3-volt standby power  
will be applied to the server board. A power monitor circuit on 3.3-volt standby will assert  
BMCRST_L, causing the BMC to reset. The BMC is powered by 3.3 volt standby and monitors  
and controls key events in the system related to reset and power control.  
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After the system is turned on, the power supply will assert the PWRGD+00 signal after all  
voltage levels in the system have reached valid levels. The BMC receives PWRGD+00 and  
after approximately 500 ms, asserts RST_P6_PWRGOOD, which indicates to the processors  
and CSB5 that the power is stable. Upon RST_P6_PWRGOOD assertion, the CSB5 will toggle  
PCI reset.  
5.2.2  
Hard Reset  
A hard reset can be initiated by resetting the system through the front panel switch. During the  
reset, the Sahalee BMC de-asserts RST_P6_PWR_GOOD. After 500 ms, it is reasserted, and  
the power-up reset sequence is completed.  
The Sahalee BMC is not reset by a hard reset. It may be reset at power-up.  
5.2.3  
Soft Reset  
A soft reset causes the processors to begin execution in a known state without flushing caches  
or internal buffers. Soft resets can either be generated by SIO(KBD_PINITN),  
CSB5(RSB_PINITN), or by the CMIC-LE(CMIC_PINITN).  
Power button  
Reset button  
Sleep button  
Hudson II/III  
Front Panel  
Front Panel  
Connector  
debounce  
logic  
VRD  
Pgood  
logic  
Processor  
CPURST  
BASEBOARD  
MANAGEMENT  
CONTROLLER  
(BMC)  
CSB5  
Sec PCI Slots  
Pri PCI Slots  
PCIRST  
CIOB  
Pwr  
Conn  
Reset out  
PSON  
PSU  
CMIC-  
LE  
PCIRST  
PWRGD  
32b PCI Slots  
GPIO  
PCIRST  
PLL rst  
logic  
isolation  
NIC  
Misc (EMP,  
IPMB Isolation  
logic, etc)  
SCSI  
reset  
gateing  
BMC video gate  
Video  
Figure 8. Basic Reset Flow  
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5.3 Intelligent Platform Management Buses  
Management controllers (and sensors) communicate on the I2C-based IPMB. A bit protocol,  
2
defined by the I C Bus Specification, and a byte-level protocol, defined by the Intelligent  
Platform Management Bus Communications Protocol Specification, provide an independent  
interconnect for all devices operating on this I2C bus.  
The IPMB extends throughout the server board and system chassis. An added layer in the  
protocol supports transactions between multiple servers on inter-chassis I2C bus segments.  
Table 20: IPMB Bus Devices  
Function  
SCSI HSBP-A  
Voltage  
5V  
Address  
0xC0  
Notes  
SCSI HSBP-B  
5V  
0xC2  
Front Panel Connector  
IPMB Connector  
5VSB  
3VSB  
0x9A  
TBD  
Depends on plug-in card  
In addition to the “public” IPMB, the Sahalee BMC also has five private I2C buses that are used  
on the baseboard. The Sahalee BMC is the only master on the private buses. The following  
tables list all server board connections to the Sahalee BMC private I2C buses.  
Table 21. Private I2C* Bus 1 Devices  
Function  
PCI Slot 1  
Voltage  
3VSB  
Address  
TBD  
Notes  
Depends on plug-in card  
PCI Slot 2  
PCI Slot 3  
PCI Slot 4  
PCI Slot 5  
PCI Slot 6  
3VSB  
3VSB  
3VSB  
3VSB  
3VSB  
TBD  
TBD  
TBD  
TBD  
TBD  
Depends on plug-in card  
Depends on plug-in card  
Depends on plug-in card  
Depends on plug-in card  
Depends on plug-in card  
Table 22: Private I2C* Bus 2 Devices  
Function  
CMIC-LE  
CIOB-X2  
CSB5  
Voltage  
2.5 V  
Address  
0xC0  
Notes  
North Bridge  
I/O Bridge  
South Bridge  
DIMM1A  
2.5 V  
3.3 V  
2.5 V  
2.5 V  
2.5 V  
2.5 V  
2.5 V  
2.5 V  
0xC4  
0xC2  
0xA0  
0xA2  
0xA4  
0xA6  
0xA8  
0xAA  
DIMM 1  
DIMM 2  
DIMM 3  
DIMM 4  
DIMM 5  
DIMM 6  
DIMM1B  
DIMM2A  
DIMM2B  
DIMM3A  
DIMM3B  
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Table 23: Private I2C* Bus 3 Devices  
Function  
Voltage  
Address  
0xBC, 0xAC  
0xB0, 0xA0  
0xB1, 0xA1  
0xB2, 0xA2  
0x58  
Notes  
Aux Power Connector  
3 VSB  
ADM1026  
3 VSB  
Table 24: Private I2C* Bus 4 Devices  
Address Notes  
Function  
Voltage  
3 VSB  
3 VSB  
3 VSB  
CPU1  
0xC0, 0x30  
0xC1, 0x31  
0x60  
CPU2  
PC87417 SIO  
Table 25: Private I2C* Bus 5 Devices  
Function  
Voltage  
3 VSB  
Address  
Notes  
NIC1 (82550PM)  
0x84  
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6. Error Reporting and Handling  
This section defines how errors are handled by the system BIOS on the Intel SHG2 server  
board. Also discussed is the role of BIOS in error handling, and the interaction between the  
BIOS, platform hardware, and server management firmware with regard to error handling. In  
addition, error-logging techniques are described, and beep codes for errors are defined.  
6.1 Error Sources and Types  
One of the major requirements of server management is to correctly and consistently handle  
system errors. System errors, which can be disabled and enabled individually or as a group,  
can be categorized as follows:  
PCI bus  
Memory correctable- and uncorrectable errors  
Sensors  
Processor internal error, bus/address error, thermal trip error, temperatures and  
voltages, and assisted gunning transceiver logic (AGTL+) voltage levels  
Sensors are managed by the BMC. The BMC is capable of receiving event messages from  
individual sensors and logging system events.  
6.2 Handling and Logging System Errors  
This section describes actions taken by the SMI handler with respect to the various categories  
of system errors. It covers the events logged by the BIOS, and the format of data bytes  
associated with those events. The BIOS is responsible for monitoring and logging certain  
system events. The BIOS sends a platform event message to BMC to log the event. Some of  
the errors, such as processor failure, are logged during early POST, and not through the SMI  
handler.  
6.2.1  
Logging Format Conventions  
The BIOS complies with the Intelligent Platform Management Interface Specification, Revision  
1.5. The BIOS always uses system software ID within the range 00h-1Fh to log errors. As a  
result, the generator ID byte is an odd number in the range 01h-3fh. OEM user binary should  
use software IDs of 1. The software ID allows external software to find the origin of the event  
message.  
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The BIOS logs the following SEL entries:  
Table 26. BIOS Logging SEL List  
Sensor  
Type  
Code  
Sensor-  
Specific  
Offset  
Sensor  
Number  
Sensor Type  
Event  
Processor  
98h  
99h  
07h  
02h  
03h  
05h  
01h  
-
FRB1/BIST Failure  
FRB2/Hang in POST failure  
Configuration Error (for DMI)  
Uncorrectable ECC (If BMC not available)  
POST Memory Resize  
Memory  
08h  
A0h  
0Ch  
0Eh  
POST Memory  
Resize  
POST Error  
System Event  
Critical  
06h  
87h  
07h  
0Fh  
12h  
13h  
-
POST Error  
00h  
04h  
05h  
00h  
03h  
04h  
00h  
02h  
06h  
07h  
08h  
System Reconfigured  
PCI SERR  
Interrupt  
PCI PERR  
System Boot  
Initiated  
A1h  
A2h  
1Dh  
Initiated by power up  
User requested PXE boot  
Automatic boot to diagnostic  
No bootable media  
PXE Server not found  
CMIC function 0 Errors  
CMIC function 1-3 Errors  
CIOBX2 #0 Errors  
Boot Error  
1Eh  
F4h  
Chipset Specific A9h  
Critical Interrupt  
Table 27 below describes the various fields in the event request message, as sent by the BIOS.  
(Regarding the detail, refer to the SHG2 Basic Input Output System (BIOS) External Product  
Specification.)  
Table 27. Event Request Message Event Data Field Contents  
Event Trigger  
Class  
Event Data  
Discrete  
7:6  
5:4  
3:0  
00 = Unspecified byte 2  
01 = Previous state and/or severity in byte 2  
10 = OEM code in byte 2  
11 = Sensor specific event extension code in byte 2  
00 = Unspecified byte 3  
01 = Reserved  
10 = OEM code in byte 3  
11 = Sensor specific event extension code in byte 3  
Offset from Event Trigger for discrete event state  
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Event Trigger  
Class  
Event Data  
Event Data 2  
7:4  
Optional offset from ‘Severity’ Event Trigger. (0Fh if unspecified).  
Optional offset from Event Trigger for previous discrete event state. 0Fh if  
3:0  
unspecified.  
6.3 System Management Interrupt (SMI) Handler  
The SMI handler is used to handle and log system level events that are not visible to the server  
management firmware. The SMI handler will preprocess all system errors; this includes errors  
that are normally considered to generate an NMI. The SMI handler sends a command to the  
BMC to log the event and provides the data to be logged, a Set NMI Source command to  
indicate BIOS as the source of the NMI, and a BIOS LCD command to display the Liquid  
Crystal Display (LCD) and LED messages. A correctable memory error does not generate an  
SMI. Correctable and uncorrectable memory errors are handled and logged by the BMC.  
6.3.1  
PCI Bus Error  
The PCI bus defines two error pins, PERR# and SERR#, for reporting PCI parity errors and  
system errors, respectively.  
6.3.2  
Intel Xeon Processor Bus Error  
In the case of irrecoverable errors on the host processor bus, proper execution of the SMI  
handler cannot be guaranteed and the SMI handler cannot be relied upon to log such  
conditions. The BIOS SMI handler records the error to the SEL only if the system has not  
experienced a catastrophic failure that compromises the integrity of the SMI handler. The BIOS  
always enables the error correction and detection capabilities of the processors by setting  
appropriate bits in the processor model-specific register (MSR).  
6.3.3  
Memory Bus Error  
The BMC monitors and logs memory errors. The BIOS will configure the hardware to notify the  
BMC on correctable and uncorrectable memory errors. Uncorrectable errors generate an SMI  
to stop the system and prevent propagation of the error. The BMC will query the hardware for  
error information when notified.  
6.3.4  
System Limit Error  
The BMC monitors system operational limits. It manages the A/D converter, defining voltage  
and temperature limits as well as fan sensors and chassis intrusion. Any sensor values outside  
of specified limits are fully handled by BMC, and there is no need to generate an SMI to the  
host processor.  
6.3.5  
Processor Failure  
The BIOS detects processor built-in self test (BIST) failure and logs this event. The first OEM  
data byte field in the log can identify the failed processor. For example, if processor 0 fails, the  
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first OEM data byte is 0. The BIOS depends upon the BMC to log the watchdog timer reset  
event.  
6.3.6  
Boot Event  
The BIOS downloads the system date and time to the BMC during POST and logs a boot event.  
This does not indicate an error, and software that parses the event log should treat it as such.  
6.3.7  
Chip Set Failure  
The BIOS detects the chip set (CMIC-LE and CIOB-X2) failure and logs this event. The chip set  
error generates an SMI.  
6.4 Firmware (BMC)  
The BMC implements the logical SEL device as specified in the Intelligent Platform  
Management Interface Specification, Version 1.5. The SEL is accessible via all BMC  
transports. This allows the SEL information to be accessed while the system is down via out-of-  
band interfaces.  
6.4.1  
System Event Log (SEL) Full  
The BIOS shall generate a POST warning message when the SEL is full. This warning will not  
inhibit the system from booting.  
6.4.2  
Timestamp Clock  
The BMC maintains a four-byte internal timestamp clock used by the SEL and SDR  
subsystems. This clock is incremented once per second, and is read and set using the Get  
SEL Time and Set SEL Time commands, respectively. The Get SDR Time command can also  
be used to read the timestamp clock.  
The BMC has direct access to the system RTC. This allows the BMC to automatically  
synchronize the SEL/SDR timestamp clock to the RTC time on BMC startup, and periodically  
reads the RTC to maintain synchrony even when software asynchronously changes the value.  
In addition to this, the BIOS sends a timestamp to the BMC using Set SEL Time command  
during POST.  
6.4.3  
Fault Resilient Booting  
The Sahalee BMC implements FRB) levels 1, 2, and 3. If the default bootstrap processor (BSP)  
fails to complete the boot process, FRB attempts to boot using an alternate processor.  
FRB level 1 is intended to recover from a BIST failure detected during POST. This FRB  
recovery is fully handled by BIOS code.  
FRB level 2 is intended to recover from a watchdog timeout during POST. The  
watchdog timer for FRB level 2 is implemented in the Sahalee BMC.  
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FRB level 3 is intended to recover from a watchdog timeout on hard reset or power-up.  
The Sahalee BMC provides hardware functionality for this level of FRB.  
6.4.3.1  
FRB-1  
In a multiprocessor system, the BIOS registers the application processors in the multi-  
processor (MP) table and the ACPI APIC tables. When started by the BSP, if an application  
processor (AP) fails to complete initialization within a certain time, it is assumed to be  
nonfunctional. If the BIOS detects that an application processor has failed BIST or is  
nonfunctional, it requests the BMC disable that processor. The BMC then generates a system  
reset while disabling the processor; the BIOS will not see the failed processor in the next boot  
cycle. The failing AP is not listed in the MP table, nor in the ACPI APIC tables, and is invisible to  
the OS. If the BIOS detects that the BSP has failed BIST, it sends a request to the BMC to  
disable the present processor. If there is no alternate processor available, the BMC beeps the  
speaker and halts the system. If the BMC can find another processor, BSP ownership is  
transferred to that processor via a system reset.  
6.4.3.2  
FRB-2  
The second watchdog timer (FRB-2) in the BMC is set for approximately 6 minutes by BIOS  
and is designed to guarantee that the system completes BIOS POST. The FRB-2 timer is  
enabled before the FRB-3 timer is disabled to prevent any “unprotected” window of time. Near  
the end of POST, before the option ROMs are initialized, the BIOS will disable the FRB-2 timer  
in the BMC. If the system contains more than 1 GB of memory and the user chooses to test  
every DWORD of memory, the watchdog timer is disabled before the extended memory test  
starts, because the memory test can take more than 6 minutes under this configuration. If the  
system hangs during POST, the BIOS will not disable the timer in the BMC, which generates an  
asynchronous system reset (ASR).  
6.4.3.3  
FRB-3  
The first timer (FRB-3) starts counting down whenever the system comes out of hard reset,  
which is usually about 5 seconds. If the BSP successfully resets and starts executing, the BIOS  
will disable the FRB-3 timer in the BMC by de-asserting the FRB_TIMER_HLT signal (GPIO)  
and the system continues on with the POST. If the timer expires because of the BSP’s failure to  
fetch or execute BIOS code, the BMC resets the system and disables the failed processor. The  
system continues to change the BSP until the BIOS POST gets past disabling the FRB-3 timer  
in the BMC. The BMC sounds beep codes on the speaker if it fails to find a good processor.  
The process of cycling through all the processors is repeated upon system reset or power  
cycle.  
6.5 Error Messages and Error Codes  
The system BIOS displays error messages on the video screen. Prior to video initialization,  
beep codes inform the user of errors. Power-On Self Test (POST) error codes are logged in the  
event log. The BIOS displays POST error codes on the video monitor.  
The following are definitions of POST error codes, POST beep codes, and system error  
messages.  
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6.5.1  
Alert Standard Forum (ASF) Progress Codes  
The BIOS utilizes ASF Progress Events as described in the ASF Specification, Revision 1.0a  
from the Distributed Management Task Force (DMTF). BIOS supported events are shown in  
Table 28.  
Table 28. Event Request Message Event Data Field Contents  
ASF Code  
01h  
Description  
Memory initialization.  
Comment  
At beginning of ECC initialization or memory test.  
02h  
03h  
04h  
05h  
06h  
07h  
08h  
09h  
Hard-disk initialization  
At beginning of IDE device detection.  
At beginning of MP Init  
Secondary processor(s) initialization  
User authentication  
When waiting for User/Supervisor password  
When Setup is invoked  
User-initiated system setup  
USB resource configuration  
PCI resource configuration  
Option ROM initialization  
Video initialization  
When USB devices scan/initialization begins  
At beginning of configuring PCI devices in system.  
At beginning of Option ROM scan  
At beginning of initialization primary video controller (if  
present)  
0Ah  
0Bh  
Cache initialization  
SM Bus initialization  
At beginning of setting up processor cache  
At beginning of configuring SMBus to communicate  
with BMC  
0Ch  
0Dh  
Keyboard controller initialization  
At keyboard discovery scan  
Embedded controller/management  
controller initialization  
When first checking for functional BMC  
12h  
13h  
Calling operating system wake-up  
vector  
When waking from Wake-On-LAN, Wake-On-Ring,  
Magic Packet, etc.  
Starting operating system boot  
process, e.g. calling Int 19h  
Immediately prior to calling INT19h  
6.5.2  
Power-On Self Test (POST) Codes  
The BIOS indicates the current testing phase to I/O location 80h and to the LCD on the front  
panel during POST after the video adapter has been successfully initialized. If a Port-80h card  
(Postcard*) is installed, it displays this 2-digit code on a pair of hex display LEDs.  
Table 29. Port-80h Code Definition  
Code  
Meaning  
CP  
Phoenix* check point POST code  
Table 30 contains the POST codes displayed during the boot process. A beep code is a series  
of individual beeps on the PC speaker, each of equal length. This table describes the error  
conditions associated with each beep code and the corresponding POST checks point code as  
seen by a ‘port 80h’ card and LCD. For example, if an error occurs at checkpoint 22h, a beep  
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code of 1-3-1-1 is generated. The dash between the numbers defines an audible pause that  
delimits the sequence.  
POST codes will occur prior to the video display being initialized. To assist in determining the  
fault, a unique beep-code is derived from these checkpoints as follows:  
1. The 8-bit test point is broken down to four 2-bit groups.  
2. Each group is made one-based (1 through 4).  
3. One to four beeps are generated based on each group’s 2-bit pattern.  
Example:  
Checkpoint 04Bh is broken down to:  
And the beep code is:  
01 00 10 11  
2 – 1 – 3 –4  
Table 30. Standard BIOS POST Codes  
Reason  
CP  
02  
Beeps  
Verify Real Mode  
04  
06  
08  
09  
0A  
0B  
0C  
0E  
0F  
10  
11  
12  
14  
16  
18  
1A  
1C  
20  
22  
24  
28  
2A  
2C  
32  
Get Processor type  
Initialize system hardware  
Initialize chipset registers with initial POST values  
Set in POST flag  
Initialize Processor registers  
Enable Processor cache  
Initialize caches to initial POST values  
Initialize I/O  
Initialize the local bus IDE  
Initialize Power Management  
Load alternate registers with initial POST values  
Restore Processor control word during warm boot  
Initialize keyboard controller  
1-2-2-3  
BIOS ROM checksum  
8254 timer initialization  
8237 DMA controller initialization  
Reset Programmable Interrupt Controller  
Test DRAM refresh  
1-3-1-1  
1-3-1-3  
Test 8742 Keyboard Controller  
Set ES segment register to 4GB  
Auto-size DRAM, system BIOS stops execution if it does not detect any usable memory  
Clear 8 MB base RAM  
1-3-3-1  
1-3-4-1  
Base RAM failure, BIOS stops execution here if entire memory is bad  
Test Processor bus-clock frequency  
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Error Reporting and Handling  
Intel® SHG2 DP Server Board Technical Product Specification  
Reason  
CP  
34  
Beeps  
Test CMOS  
35  
36  
37  
38  
39  
3A  
3C  
3D  
40  
42  
44  
46  
47  
48  
49  
4A  
4B  
4C  
4E  
50  
52  
54  
55  
56  
58  
5A  
5C  
60  
62  
64  
66  
68  
6A  
6B  
6C  
6E  
70  
72  
74  
76  
7A  
RAM Initialize alternate chipset registers  
Warm start shut down  
Reinitialize the chipset  
Shadow system BIOS ROM  
Reinitialize the cache  
Auto-size cache  
Configure advanced chipset registers  
Load alternate registers with CMOS values  
Set Initial Processor speed new  
Initialize interrupt vectors  
Initialize BIOS interrupts  
2-1-2-3  
Check ROM copyright notice  
Initialize manager for PCI Option ROMs  
Check video configuration against CMOS  
Initialize PCI bus and devices  
Initialize all video adapters in system  
Display QuietBoot screen  
Shadow video BIOS ROM  
Display copyright notice  
Display Processor type and speed  
Test keyboard  
Set key click if enabled  
USB initialization  
Enable keyboard  
2-2-3-1  
Test for unexpected interrupts  
Display prompt "Press F2 to enter SETUP"  
Test RAM between 512 and 640k  
Test extended memory  
Test extended memory address lines  
Jump to UserPatch1  
Configure advanced cache registers  
Enable external and processor caches  
Display external cache size  
Load custom defaults if required  
Display shadow message  
Display non-disposable segments  
Display error messages  
Check for configuration errors  
Test real-time clock  
Check for keyboard errors  
Test for key lock on  
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Error Reporting and Handling  
CP  
7C  
Beeps  
Reason  
Set up hardware interrupt vectors  
Intelligent system monitoring  
7D  
7E  
82  
85  
86  
88  
Test coprocessor if present  
Detect and install external RS232 ports  
Initialize PC-compatible PnP ISA devices  
Re-initialize on board I/O ports  
Initialize BIOS Data Area  
8A  
8C  
90  
91  
92  
93  
Initialize Extended BIOS Data Area  
Initialize floppy controller  
Initialize hard disk controller  
Initialize local bus hard disk controller  
Jump to UserPatch2  
Build MPTABLE for multi-processor boards  
Disable A20 address line  
94  
95  
96  
98  
9A  
9C  
9E  
A0  
A2  
A4  
A8  
AA  
AC  
AE  
B0  
B2  
B4  
B5  
B6  
B7  
B8  
BC  
BE  
BF  
C0  
C8  
C9  
DO  
D2  
Install CD-ROM for boot  
Clear huge ES segment register  
1-2  
Search for option ROMs. One long, two short beeps on checksum failure  
Shadow option ROMs  
Set up Power Management  
Enable hardware interrupts  
Set time of day  
Check key lock  
Initialize typematic rate  
Erase F2 prompt  
Scan for F2 key stroke  
Enter SETUP  
Clear in-POST flag  
Check for errors  
POST done – prepare to boot Operating System  
One short beep before boot  
Display MultiBoot menu  
1
Check password, password is checked before option ROM scan  
ACPI initialization  
Clear global descriptor table  
Clear parity checkers  
Clear screen (optional)  
Check virus and backup reminders  
Try to boot with INT 19  
Forced shutdown  
Flash recovery  
Interrupt handler error  
Unknown interrupt error  
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Error Reporting and Handling  
Intel® SHG2 DP Server Board Technical Product Specification  
Reason  
CP  
D4  
Beeps  
Pending interrupt error  
Initialize option ROM error  
Shutdown error  
D6  
D8  
DA  
DC  
Extended Block Move  
Shutdown 10 error  
Table 31. Recovery BIOS POST Codes  
Reason  
CP  
Beeps  
E0  
Initialize chip set  
E1  
E2  
E3  
E4  
E5  
E6  
E7  
E8  
E9  
EA  
EB  
EC  
ED  
EE  
EF  
F0  
F1  
F2  
F3  
F4  
F5  
F6  
F7  
Initialize bridge  
Initialize processor  
Initialize timer  
Initialize system I/O  
Check forced recovery boot  
Validate checksum  
Go to BIOS  
Initialize processors  
Set 4 GB segment limits  
Perform platform initialization  
Initialize PIC and DMA  
Initialize memory type  
Initialize memory size  
Shadow boot block  
Test system memory  
Initialize interrupt services  
Initialize real time clock  
Initialize video  
Initialize beeper  
Initialize boot  
Restore segment limits to 64 KB  
Boot mini DOS  
Boot full DOS  
6.5.3  
POST Error Codes and Messages  
defines POST error codes and their associated messages. The BIOS prompts the user to  
press a key in case of serious errors. Some of the error messages are preceded by the string,  
‘Error‘, to indicate that a system that might be malfunctioning. All POST errors and warnings  
are logged in the SEL unless it is full.  
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Error Reporting and Handling  
Table 32. POST Error Messages and Codes  
Error Message Failure Description  
Code  
0200: Failure Fixed Disk  
hard disk error  
0210: Stuck Key  
Keyboard connection error  
Keyboard failure  
0211: Keyboard error  
0212: Keyboard Controller Failed  
0213: Keyboard locked– Unlock key switch  
0220: Monitor type does not match CMOS– Run SETUP  
0230: System RAM Failed at offset  
Keyboard Controller Failed  
Keyboard locked  
Monitor type does not match CMOS  
System RAM error  
Offset address  
0231: Shadow RAM Failed at offset  
Shadow RAM Failed  
Offset address  
0232: Extend RAM Failed at address line  
Extended RAM failed  
Offset address  
0233: Memory type mixing detected  
0234: Single – bit ECC error  
Memory type mixing detected  
Memory 1 bit error detected  
Memory multiple-bit error detected  
NVRAM battery dead  
CMOS checksum error  
0235: Multiple- bit ECC error  
0250: System battery is dead – Replace and run SETUP  
0251: System CMOS checksum bad – Default  
configuration used  
0252: Password checksum bad - Passwords cleared  
0260: System timer error  
System timer error  
RTC error  
0270: Real time clock error  
0271: Check date and time setting  
RTC time setting error  
02B0: Diskette drive A error  
02B2: Incorrect Drive A type – run SETUP  
02D0: System cache error – Cache disabled  
0B00: Rebooted during BIOS boot at Post Code  
0B1B: PCI System Error on Bus/Device/Function  
0B1C: PCI Parity Error in Bus/Device/Function  
Incorrect Drive A type  
CPU cache error  
PCI system error in Bus/device/Function  
PCI system error in Bus/device/Function  
0B22  
0B28  
0B29  
0B2A  
0B2B  
0B40  
0B41  
0B42  
0B43  
0B44  
0B45  
Processors are installed out of order  
Unsupported Processor detected on Processor 1  
Unsupported Processor detected on Processor 2  
Unsupported Processor detected on Processor 3  
Unsupported Processor detected on Processor 4  
Invalid System Configuration Data  
System configuration data destroyed  
System Configuration Data Read Error  
Resource Conflict  
System configuration data read error  
PCI card resource is not mapped correctly.  
PCI interrupt is not configured correctly.  
PCI Expansion ROM card not initialized  
System configuration data write error  
Failed Processor 1 because an error was detected.  
Warning: IRQ not configured  
Expansion ROM not initialized.  
System Configuration Data Write error  
0B50: Processor #1 with error taken offline  
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Intel® SHG2 DP Server Board Technical Product Specification  
Code  
Error Message  
Failure Description  
0B51: Processor #2 with error taken offline  
Failed Processor 2 because an error was detected.  
0B52  
0B53  
Processor #3 with error taken off line  
Processor #4 with error taken off line  
Failed Processor 3 because an error was detected.  
Failed Processor 4 because an error was detected.  
An error detected in the entire CPU.  
0B5F: Forced to use CPU with error  
0B60: DIMM bank 1 has been disabled  
0B61: DIMM bank 2 has been disabled  
0B62: DIMM bank 3 has been disabled  
Memory error, memory bank 1 failed  
Memory error, memory bank 2 failed  
Memory error, memory bank 3 failed  
0B6F: DIMM bank with error is enabled  
An error detected in all the memory  
0B70: The error occurred during temperature sensor  
reading  
Error while detecting a temperature failure.  
0B71: System temperature out of the range  
0B74: The error occurred during voltage sensor reading  
0B75: System voltage out of the range  
Temperature error detected.  
Error while detecting voltage  
System voltage error  
0B7C: The error occurred during redundant power module  
confirmation.  
The error occurred while retrieving the power  
information.  
0B80: BMC Memory Test Failed  
BMC device (chip) failed  
0B81: BMC Firmware Code Area CRC check failed  
0B82: BMC core Hardware failure  
Access to BMC address failed  
BMC device(chip) failed  
0B83: BMC IBF or OBF check failed  
0B90: BMC Platform Information Area corrupted.  
0B91: BMC update firmware corrupted.  
0B92: Internal Use Area of BMC FRU corrupted.  
SROM storing chassis information failed  
(Available for use except for FRU command and  
EMP function)  
0B93: BMC SDR Repository empty.  
BMC device (chip) failed  
0B94: IPMB signal lines do not respond.  
SMC(Satellite Management Controller) failed  
(Available for use except for the access function to  
SMC via IPMB)  
0B95  
0B96  
BMC FRU device failure.  
SROM storing chassis information failed  
(Available for use except for FRU command and  
EMP function.)  
BMC SDR Repository failure.  
BMC device (chip) failed  
6.5.4  
Liquid Crystal Display (LCD)  
There are three users of the LCD: BMC, BIOS, and software. Sometimes they may be using the  
LCD simultaneously.  
6.5.4.1  
BIOS Usage  
The BIOS uses the first line of the LCD. It uses the LCD for messages related to failures and  
other conditions. The BIOS generates an LCD message during POST and as a result of errors  
handled by the BIOS SMI handler. Unless the LCD has been forcibly reserved by software (via  
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Error Reporting and Handling  
the LCD Display Control command), a BIOS message will override a software message written  
to the BIOS area.  
Normally, the BIOS will use the BIOS LCD Message command that will cause the BMC to  
display a BMC-stored message in the BIOS message area (first line) of the LCD.  
6.5.4.2  
Message Format  
During POST, the LCD panel displays the following:  
0h  
1h  
2h  
3h  
4h  
5h  
6h  
7h  
8h  
9h  
Ah  
Bh  
Ch  
Dh  
Eh  
Fh  
0
1
A
A
P
P
S
J
P
2
X
X
X
Where:  
AA = ASF Progress Code  
PP = Port 80h Code  
SHG2 = Platform Code  
XXX = BIOS Build Number  
During POST task (TP B9h), the following message is displayed:  
0h  
1h  
2h  
3h  
4h  
5h  
6h  
7h  
8h  
9h  
Ah  
Bh  
Ch  
Dh  
Eh  
Fh  
0
1
P
r
e
P
A
r
e
T
o
B
o
o
t
When POST Error occurs, the following message is displayed. It displays up to 6 messages as  
shown below starting on Row0, Column0:  
0h  
N
1h  
N
2h  
N
3h  
N
4h  
5h  
N
6h  
N
7h  
N
8h  
N
9h  
Ah  
N
Bh  
N
Ch  
N
Dh  
N
Eh  
Fh  
0
1
,
,
,
,
,
,
N
N
N
N
N
N
N
N
N
N
N
N
6.5.4.3  
Virtual LCD  
The BMC implements a virtual LCD that provides LCD command functionality even if a physical  
LCD is not present in the chassis. This allows BIOS messages to be retrieved by a remote  
console independently of chassis configuration.  
6.5.4.4  
OEM Extensibility  
In order to allow OEMs to provide LCD functionality in their own chassis, the BIOS provides  
LCD Control Services via INT15. These will automatically be directed to a satellite intelligent  
IPMI controller at slave address 22h on the IPMB.  
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Jumpers  
Intel® SHG2 DP Server Board Technical Product Specification  
7. Jumpers  
7.1 Hardware Configuration  
This section describes jumper options on the baseboard. The SHG2 server board has 10  
jumpers to control various configuration options.  
CN14  
CN27  
CN32  
CN43  
CN47  
CN48  
CN58  
CN53  
CN57 CN56  
Figure 9. Jumper Location  
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Jumpers  
Table 33. SHG2 Configuration Jumper Options  
Physical Shape  
Location  
Pins  
Feature  
Initial Setting  
CN43  
1-2  
3-4  
5-6  
7-8  
9-10  
11-12  
CMOS Clear  
Password Clear  
Reserved  
Reserved  
Recovery Bios  
Dummy  
1-2 Open  
3-4 Open  
5-6 Open  
7-8 Open  
9-10 Open  
11-12 Set  
SIG  
CN27  
CN53  
1-2  
3-4  
Bios Write Protect  
BMC Write Protect  
1-2 Open  
3-4 Open  
1
3
2
4
12V  
12V  
SIG  
SIG SIG  
1-2  
3-4  
PCIX1_DIS(Primary)  
PCIX2_DIS(Secondary) Set: 66MHz  
Set: 66MHz  
1-2 Open  
3-4 Set  
2
1
4
3
GNDGND  
CN58  
1-2  
SIDE_CI  
1-2  
GND  
2
1
SIG  
Chassis Intrusion Detection  
Connected  
The following headers will be de-featured for production. These features are intended for test and evaluation only,  
The headers will not be populated during production.  
SIG  
SIG  
2
2
1
1
GND  
GND  
CN47  
CN48  
CN32  
1-2  
BMC_FRC_UPDATE  
Force BMC in update mode  
1-2 Open  
1-2 Open  
2-3 Set  
1-2  
FRB3STP  
To disable FRB3_TIMER  
3
2
1
3.3V  
SIG  
1-2  
2-3  
BMC Debug SRAM  
BMC SRAM (Default)  
3.3V  
GND  
GND  
1
2
SIG  
SIG  
CN57  
CN56  
CN14  
1-2  
1-2  
FP_RESETSW-00  
To reset system from front panel  
1-2 Open  
1-2 Open  
1-2 Set  
1
2
FP_POWERSW-00  
To power on/off system from front panel  
3
2
1
P2_TDO  
P1_TDO  
P2_TDI  
1-2  
2-3  
Use for ITP 2 Processors  
Use for ITP 1 Processor  
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Connections  
Intel® SHG2 DP Server Board Technical Product Specification  
8. Connections  
8.1 Connector Locations  
The diagram below identifies all the connector locations  
M
L
K
J
N
I
H
G
F
E
D
C
A
B
Figure 10. SHG2 Baseboard Connector Identification and Locations  
Table 34. SHG2 Baseboard Connectors  
Key  
A
Connector Name / ID  
Key  
Connector Name / ID  
SCSI channel A LVDS connector (CN54)  
SCSI channel B LVDS connector (CN55)  
HSBP-A&B connector (CN50, CN52)  
H
I
Legacy Floppy connector (CN31)  
Processor #2 socket (U36)  
Processor #1 socket (U14)  
B
C
J
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Intel® SHG2 DP Server Board Technical Product Specification  
Connections  
D
E
F
IPMB connector (CN44)  
K
L
+12 VDC power connector (CN7)  
Front Panel header (CN37)  
Primary IDE connector (CN38)  
Secondary IDE connector (CN34)  
Aux Sig connector for I2C Bus (CN4)  
Main Power connector (CN6)  
ICMB connector (CN21)  
M
N
G
8.2 Power Distribution Board Interface Connector  
CN6 / CN7 / CN4 [Key - M & K & L]  
The SHG2 baseboard receives its main power through two primary and one auxiliary power  
connector. The two main power connectors are identified as CN43 and CN42. The auxiliary  
power connector, identified as CN13, provides server management communication with the  
power supply.  
Table 35. Main Power Connector  
CN6 [Key–M]  
Pin  
Signal  
Pin  
Signal  
1
2
3
4
5
6
7
8
9
+3.3V  
+3.3V  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
+3.3V  
-12V  
Common (GND)  
+5V  
Common (GND)  
DCON-00  
Common (GND)  
+5V  
Common (GND)  
Common (GND)  
Common (GND)  
RESERVED_(5V)  
+5V  
Common (GND)  
PWRGD+00  
5VSB  
10  
11  
12  
+12V_IO  
+5V  
+12V_IO  
+5V  
+3.3V  
Common (GND)  
Table 36. +12V Power Connector  
CN7 [Key-K]  
Pin  
Signal  
COMMON (GND)  
COMMON (GND)  
COMMON (GND)  
COMMON (GND)  
Pin  
Signal  
1
2
3
4
5
6
7
8
+12V  
+12V  
+12V  
+12V  
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Intel® SHG2 DP Server Board Technical Product Specification  
Table 37. Power Connector for I2C* Bus  
CN4 [Key-L]  
Pin  
1
Signal  
SM3_CLK+PWBP  
SM3_DATA  
Pin  
Signal  
RETURN_S  
+3.3V  
4
5
2
3
PS_ALERT  
8.3 SCSI Connectors  
CN54 & CN55 [Key-A & B]  
The SHG2 baseboard provides two SCSI connectors. The two connectors have the same pin-  
out. Table 38 details the pin-out of the SCSI connectors.  
Table 38. 68-pin SCSI Connector Pin-out  
CN54 & CN55 [Key-A & B]  
Connector  
Contact  
Signal Name  
Connector  
Contact  
Signal Name  
Connector  
Contact  
Signal Name  
Number  
Number  
Number  
1
2
3
4
5
6
7
8
9
+DT(12)  
+DT(13)  
+DT(14)  
+DT(15)  
+DTP(1)  
+DT(0)  
24  
+ACK  
47  
-DT(7)  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
+RST  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
-DTP(0)  
GROUND  
GROUND  
TERMPWR  
TERMPWR  
RESERVED  
GROUND  
-ATN  
+MSG  
+SEL  
+C/D  
+REQ  
+I/O  
+DT(1)  
+DT(2)  
+DT(8)  
+DT(9)  
+DT(10)  
+DT(11)  
-DT(12)  
-DT(13)  
-DT(14)  
-DT(15)  
-DTP(1)  
-DT(0)  
-DT(1)  
-DT(2)  
-DT(3)  
-DT(4)  
+DT(3)  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
+DT(4)  
GROUND  
-BSY  
+DT(5)  
+DT(6)  
-ACK  
+DT(7)  
-RST  
+DTP(0)  
GROUND  
DIFFSNS  
TERMPWR  
TERMPWR  
RESERVED  
GROUND  
+ATN  
-MSG  
-SEL  
-C/D  
-REQ  
-I/O  
-DT(8)  
-DT(9)  
-DT(10)  
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Connections  
Connector  
Contact  
Signal Name  
Connector  
Contact  
Signal Name  
Connector  
Contact  
Signal Name  
Number  
Number  
Number  
22  
23  
GROUND  
+BSY  
45  
46  
-DT(5)  
-DT(6)  
68  
-DT(11)  
8.4 Floppy Connector  
CN31 [Key-H]  
Table 39 details the pin-out of the 34-pin Legacy floppy connector.  
Table 39. Legacy 34-pin Floppy Connector Pin-out  
CN31 [Key-H]  
Pin  
Signal Name  
Ground  
Pin  
Signal Name  
DENSEL  
1
2
3
Ground  
Key  
4
Reserved  
5
6
DRATE  
7
Ground  
Ground  
Ground  
Ground  
Ground  
Ground  
Ground  
Ground  
Ground  
Ground  
Ground  
Ground  
Ground  
Ground  
8
INDEX#  
9
10  
12  
14  
16  
18  
20  
22  
24  
26  
28  
30  
32  
34  
Motor Enable A#  
Drive Select B#  
Drive Select A#  
Motor Enable B#  
DIR#  
11  
13  
15  
17  
19  
21  
23  
25  
27  
29  
31  
33  
STEP#  
Write Data#  
Write Gate#  
Track 00#  
Write Protect#  
Read Data#  
Side 1 Select#  
Diskette Change#  
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Connections  
Intel® SHG2 DP Server Board Technical Product Specification  
8.5 IDE Connectors  
CN38 & CN34 [Key-F & G]  
Table 40 lists the pinout and signal names for the IDE connectors.  
Table 40. Primary/Secondary IDE 40-pin Connector Pinout  
CN38 & CN34 [Key-F & G]  
Pin  
Signal Name  
Reset IDE  
Pin  
Signal Name  
Ground  
1
2
3
Host Data 7  
Host Data 6  
Host Data 5  
Host Data 4  
Host Data 3  
Host Data 2  
Host Data 1  
Host Data 0  
Ground  
4
Host Data 8  
Host Data 9  
Host Data 10  
Host Data 11  
Host Data 12  
Host Data 13  
Host Data 14  
Host Data 15  
Key  
5
6
7
8
9
10  
12  
14  
16  
18  
20  
22  
24  
26  
28  
30  
32  
34  
36  
38  
40  
11  
13  
15  
17  
19  
21  
23  
25  
27  
29  
31  
33  
35  
37  
39  
DDRQ0 (DDRQ1)  
I/O Write#  
Ground  
Ground  
I/O Read#  
Ground  
IOCHRDY  
Vcc pull-down  
Ground  
DDACK0 (DDACK1)#  
IRQ14 (IRQ15)  
DAG1  
Reserved  
Reserved  
DAG0  
DAG2  
Chip Select 0P (0S)#  
Reserved (Activity#)  
Chip Select 1P (1S)#  
Ground  
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Intel® SHG2 DP Server Board Technical Product Specification  
Connections  
8.6 Front Panel Interface  
CN37 [Key-E]  
A 34-pin header is provided that attaches to the system front panel. The header contains reset,  
NMI, sleep, and power control buttons, and LED indicators. Table 41 summarizes the front  
panel signal pins, including the pin number, signal mnemonic, and a brief description.  
Table 41. AT Front Panel Header Pinout  
CN37 [Key-E]  
Pin  
Signal Name  
VP50 (VCC)  
Signal Description  
Power LED Anode (VDC)  
1
2
XP055  
+5V Standby  
3
Key  
Pulled Pin – No Connect  
Fan Fail LED Anode (VDC)  
Power LED Cathode (Low True)  
Fan Fail LED Cathode (Low True)  
HDD Activity LED Anode (VDC)  
Power Fault LED Anode (VDC)  
HDD Activity LED Cathode (Low True)  
Power Fault LED Cathode (Low True)  
Power Switch (Low True)  
NIC #1 Activity LED Anode (VDC)  
Power Switch (GROUND)  
NIC #1 Activity LED Cathode (Low True)  
Reset Switch (Low True)  
I2C SDA  
4
XP055  
5
FP_PWR_LED-10  
FP_COOL_FLT_LED-10  
VP50 (VCC)  
6
7
8
XP055  
9
HDD_LED-10  
FP_SYS_FLT_LED-10  
FP_POWERSW-00  
LAN1_LINK_LED+10  
GND  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
LAN1_ACTIVE_LED+10  
FP_RESETSW-00  
IPMB_DATA+00  
GND  
Reset Switch (GROUND)  
I2C SCL  
IPMB_CLK+FPD  
FP_SLEEPSW-00  
SIDE_CI / FP_CI  
GND  
ACPI Sleep Switch (Low True)  
Side and Front Panel Chassis Intrusion  
ACPI Sleep Switch (GROUND)  
NIC #2 Activity LED Anode (VDC)  
NMI to CPU Switch (Low True)  
NIC #2 Activity LED Cathode (Low True)  
Pulled Pin – No Connect  
Pulled Pin – No Connect  
ID LED Anode (VDC)  
LAN2_LINK_LED+10  
FP_DUMPSW-00  
LAN2_ACTIVE_LED+10  
Key  
Key  
XP055  
XP055  
System Ready Anode  
IDLED-10  
ID LED Cathode (Low True)  
System Ready Cathode  
SYSRDY_LED-10  
FP_IDSW-00  
VP50 (VCC)  
GND  
ID Switch (Low True)  
HDD Fault Anode  
ID Switch (GROUND)  
HDD_FAULT_LED-10  
HDD Fault Cathode  
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Connections  
Intel® SHG2 DP Server Board Technical Product Specification  
8.7 Processor Connector  
CPU1 & CPU2 [Key-J & I]  
The Intel Xeon Processor connector pin-out, CPU1 & CPU2 [Key-J & I], lists the pins of the  
processor connector and the signal name that appears on the SHG2 baseboard schematic  
diagram.  
Table 42. Intel® Xeon™ Processor Connector Pinout  
CPU1 & CPU2 [Key-J & I]  
Pin †  
A1  
Signal  
Reserved  
Pin  
E28  
Signal  
Pin  
N9  
Signal  
Pin  
AA3  
Signal  
Reserved  
VCC  
VCC  
VSS  
VCC  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
A2  
VCC  
E29  
E30  
E31  
F1  
N23  
N24  
N25  
N26  
N27  
N28  
N29  
N30  
N31  
P1  
AA4  
A3  
SKTOCC#  
Reserved  
VSS  
No Connect  
No Connect  
No Connect  
VSS  
AA5  
VSSA  
VCC  
A4  
AA6  
A5  
AA7  
TESTHI4  
D61#  
A6  
A32#  
F2  
AA8  
A7  
A33#  
F3  
VID0  
AA9  
VSS  
A8  
VCC  
F4  
VCC  
AA10  
AA11  
AA12  
AA13  
AA14  
AA15  
AA16  
AA17  
AA18  
AA19  
AA20  
AA21  
AA22  
AA23  
AA24  
AA25  
AA26  
AA27  
AA28  
AA29  
AA30  
AA31  
AB1  
D54#  
A9  
A26#  
F5  
BPM3#  
BPM0#  
VSS  
No Connect  
No Connect  
No Connect  
VCC  
D53#  
A10  
A11  
A12  
A13  
A14  
A15  
A16  
A17  
A18  
A19  
A20  
A21  
A22  
A23  
A24  
A25  
A26  
A27  
A28  
A29  
A30  
A31  
A20#  
F6  
VCC  
VSS  
F7  
D48#  
A14#  
F8  
BPM1#  
GTLREF  
VCC  
P2  
D49#  
A10#  
F9  
P3  
VSS  
VSS  
VCC  
F10  
F11  
F12  
F13  
F14  
F15  
F16  
F17  
F18  
F19  
F20  
F21  
F22  
F23  
F24  
F25  
F26  
F27  
P4  
VCC  
D33#  
Reserved  
Reserved  
LOCK#  
VCC  
BINIT#  
BR1#  
P5  
VSS  
VSS  
P6  
VCC  
D24#  
VSS  
P7  
VSS  
D15#  
ADSTB1#  
A19#  
P8  
VCC  
VCC  
A7#  
P9  
VSS  
D11#  
A4#  
VCC  
P23  
P24  
P25  
P26  
P27  
P28  
P29  
P30  
P31  
R1  
VSS  
D10#  
VSS  
ADSTB0#  
DBSY#  
VSS  
VCC  
VSS  
A3#  
VSS  
D6#  
HITM#  
VCC  
VCC  
D3#  
BNR#  
VSS  
VCC  
TMS  
RS2#  
VCC  
D1#  
Reserved  
VSS  
VCC  
VSS  
SM_TS_A0  
SM_EP_A0  
No Connect  
No Connect  
No Connect  
VCC  
GTLREF  
TRST#  
VSS  
No Connect  
No Connect  
No Connect  
VSS  
VCC  
VSS  
No Connect  
No Connect  
THERMTRIP#  
A20M#  
R2  
R3  
VCC  
AB2  
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Intel® SHG2 DP Server Board Technical Product Specification  
Connections  
Pin †  
B1  
Signal  
Reserved  
Pin  
F28  
Signal  
Pin  
R4  
Signal  
Pin  
AB3  
Signal  
Reserved  
VCCA  
VSS  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
B2  
VSS  
F29  
F30  
F31  
G1  
R5  
AB4  
B3  
VID4  
No Connect  
No Connect  
No Connect  
VCC  
R6  
AB5  
B4  
No Connect  
OTDEN  
VCC  
R7  
AB6  
D63#  
B5  
R8  
AB7  
PWRGOOD  
VCC  
B6  
G2  
R9  
AB8  
B7  
A31#  
G3  
VSS  
R23  
R24  
R25  
R26  
R27  
R28  
R29  
R30  
R31  
T1  
AB9  
DB13#  
D55#  
B8  
A27#  
G4  
VCC  
AB10  
AB11  
AB12  
AB13  
AB14  
AB15  
AB16  
AB17  
AB18  
AB19  
AB20  
AB21  
AB22  
AB23  
AB24  
AB25  
AB26  
AB27  
AB28  
AB29  
AB30  
AB31  
AC1  
B9  
VSS  
G5  
VSS  
VSS  
B10  
B11  
B12  
B13  
B14  
B15  
B16  
B17  
B18  
B19  
B20  
B21  
B22  
B23  
B24  
B25  
B26  
B27  
B28  
B29  
B30  
B31  
C1  
A21#  
G6  
VCC  
D51#  
A22#  
G7  
VSS  
D52#  
VCC  
G8  
VCC  
VCC  
A13#  
G9  
VSS  
D37#  
A12#  
G23  
G24  
G25  
G26  
G27  
G28  
G29  
G30  
G31  
H1  
LINT1  
VCC  
No Connect  
No Connect  
No Connect  
VCC  
D32#  
VSS  
D31#  
A11#  
VSS  
VCC  
VSS  
VCC  
T2  
D14#  
A5#  
VSS  
T3  
VSS  
D12#  
REQ0#  
VCC  
VCC  
T4  
VCC  
VSS  
VSS  
T5  
VSS  
D13#  
REQ1#  
REQ4#  
VSS  
No Connect  
No Connect  
No Connect  
VSS  
T6  
VCC  
D9#  
T7  
VSS  
VCC  
T8  
VCC  
D8#  
LINT0  
PROCHOT#  
VCC  
H2  
T9  
VSS  
D7#  
H3  
VCC  
T23  
T24  
T25  
T26  
T27  
T28  
T29  
T30  
T31  
U1  
VSS  
VSS  
H4  
VSS  
VCC  
SM_EP_A2  
SM_EP_A1  
No Connect  
No Connect  
Reserved  
VSS  
VCCSENSE  
VSS  
H5  
VCC  
VSS  
H6  
VSS  
VCC  
VCC  
H7  
VCC  
VSS  
No Connect  
No Connect  
No Connect  
VCC  
H8  
VSS  
VCC  
H9  
VCC  
VSS  
AC2  
H23  
H24  
H25  
H26  
H27  
H28  
H29  
H30  
H31  
J1  
VCC  
No Connect  
No Connect  
No Connect  
VSS  
AC3  
VCC  
C2  
VSS  
AC4  
VCC  
C3  
VID3  
VCC  
AC5  
D60#  
C4  
VCC  
VSS  
U2  
AC6  
D59#  
C5  
Reserved  
RSP#  
VSS  
VCC  
U3  
VCC  
AC7  
VSS  
C6  
VSS  
U4  
VSS  
AC8  
D56#  
C7  
VCC  
U5  
VCC  
AC9  
D47#  
C8  
A35#  
No Connect  
No Connect  
No Connect  
VCC  
U6  
VSS  
AC10  
AC11  
AC12  
VCC  
C9  
A34#  
U7  
VCC  
D43#  
C10  
C11  
VCC  
U8  
VSS  
D41#  
A30#  
J2  
U9  
VCC  
AC13 VSS  
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Connections  
Pin †  
Intel® SHG2 DP Server Board Technical Product Specification  
Signal  
Pin  
J3  
Signal  
Pin  
U23  
U24  
U25  
U26  
U27  
U28  
U29  
U30  
U31  
V1  
Signal  
Pin  
Signal  
D50#  
C12  
C13  
C14  
C15  
C16  
C17  
C18  
C19  
C20  
C21  
C22  
C23  
C24  
C25  
C26  
C27  
C28  
C29  
C30  
C31  
D1  
A23#  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
AC14  
VSS  
A16#  
A15#  
VCC  
A8#  
J4  
AC15 DP2#  
AC16 VCC  
J5  
J6  
AC17  
D34#  
J7  
AC18 DP0#  
AC19 VSS  
J8  
A6#  
J9  
AC20  
AC21  
AC22  
AC23  
AC24  
D25#  
D26#  
VCC  
VSS  
J23  
J24  
J25  
J26  
J27  
J28  
J29  
J30  
J31  
K1  
No Connect  
No Connect  
No Connect  
VCC  
REQ3#  
REQ2#  
VCC  
D23#  
D20#  
V2  
DEFER#  
TDI  
V3  
VSS  
AC25 VSS  
AC26 D17#  
AC27 DBI0#  
V4  
VCC  
VSS  
V5  
VSS  
IGNNE#  
SMI#  
No Connect  
No Connect  
No Connect  
VSS  
V6  
VCC  
AC28  
AC29  
AC30  
SM_CLK  
V7  
VSS  
SM_DAT  
VCC  
V8  
VCC  
No Connect  
VSS  
K2  
V9  
VSS  
AC31 No Connect  
No Connect  
No Connect  
No Connect  
VSS  
K3  
VCC  
V23  
V24  
V25  
V26  
V27  
V28  
V29  
V30  
V31  
W1  
W2  
W3  
W4  
W5  
W6  
W7  
W8  
W9  
W23  
W24  
W25  
W26  
W27  
W28  
VSS  
AD1  
AD2  
AD3  
AD4  
AD5  
AD6  
AD7  
AD8  
AD9  
AD10  
AD11  
AD12  
Reserved  
VCC  
K4  
VSS  
VCC  
K5  
VCC  
VSS  
VSS  
D2  
K6  
VSS  
VCC  
VCCIOPLL  
TESTHI5  
VCC  
D3  
VID2  
K7  
VCC  
VSS  
D4  
STPCLK#  
VSS  
K8  
VSS  
VCC  
D5  
K9  
VCC  
VSS  
D57#  
D6  
INIT#  
K23  
K24  
K25  
K26  
K27  
K28  
K29  
K30  
K31  
L1  
VCC  
No Connect  
No Connect  
No Connect  
VSS  
D46#  
D7  
MCERR#  
VCC  
VSS  
VSS  
D8  
VCC  
D45#  
D9  
AP1#  
VSS  
D40#  
D10  
D11  
D12  
D13  
D14  
D15  
D16  
D17  
D18  
D19  
D20  
D21  
D22  
BR3#  
VSS  
VCC  
Reserved  
VSS  
VCC  
VSS  
AD13 D38#  
A29#  
VCC  
BCLK1  
TESTHI0  
TESTHI1  
TESTHI2  
GTLREF  
GTLREF  
VSS  
AD14  
AD15  
AD16  
AD17  
AD18  
AD19  
D39#  
VSS  
A25#  
No Connect  
No Connect  
No Connect  
VCC  
VCC  
COMP0  
VSS  
A18#  
A17#  
L2  
D36#  
D30#  
A9#  
L3  
VSS  
VCC  
L4  
VCC  
AD20 VCC  
AD21 D29#  
AD22 DBI1#  
AD23 VSS  
ADS#  
BR0#  
VSS  
L5  
VSS  
VCC  
L6  
VCC  
VSS  
L7  
VSS  
VCC  
RS1#  
L8  
VCC  
VSS  
AD24  
D21#  
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Intel® SHG2 DP Server Board Technical Product Specification  
Connections  
Signal  
Pin †  
D23  
D24  
D25  
D26  
D27  
D28  
D29  
D30  
D31  
E1  
Signal  
BPRI#  
Pin  
L9  
Signal  
Pin  
W29  
W30  
W31  
Y1  
Signal  
Pin  
VSS  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
AD25 D18#  
AD26 VCC  
VCC  
L23  
L24  
L25  
L26  
L27  
L28  
L29  
L30  
L31  
M1  
No Connect  
No Connect  
No Connect  
VCC  
Reserved  
VSSSENSE  
VSS  
AD27  
D4#  
AD28 SM_ALERT#  
AD29 SM_WP  
Y2  
VSS  
Y3  
Reserved  
BCLK0  
AD30  
AD31  
AE2  
No Connect  
No Connect  
VSS  
VCC  
Y4  
No Connect  
No Connect  
No Connect  
VCC  
Y5  
VSS  
No Connect  
No Connect  
No Connect  
VSS  
Y6  
TESTHI3  
VSS  
AE3  
VCC  
Y7  
AE4  
Reserved  
TESTHI6  
SLP#  
E2  
Y8  
RESET#  
D62#  
AE5  
E3  
VID1  
M2  
Y9  
AE6  
E4  
BPM5#  
IERR#  
VCC  
M3  
VCC  
Y10  
Y11  
Y12  
Y13  
Y14  
Y15  
Y16  
Y17  
Y18  
Y19  
Y20  
Y21  
Y22  
Y23  
Y24  
Y25  
Y26  
Y27  
Y28  
Y29  
Y30  
Y31  
AA1  
AA2  
VCC  
AE7  
D58#  
E5  
M4  
VSS  
DSTBP3#  
DSTBN3#  
VSS  
AE8  
VCC  
E6  
M5  
VCC  
AE9  
D44#  
E7  
BPM2#  
BPM4#  
VSS  
M6  
VSS  
AE10  
AE11  
AE12  
AE13  
AE14  
AE15  
AE16  
AE17  
AE18  
AE19  
AE20  
AE21  
AE22  
AE23  
AE24  
AE25  
AE26  
AE27  
AE28  
AE29  
D42#  
E8  
M7  
VCC  
DSTBP2#  
DSTBN2#  
VCC  
VSS  
E9  
M8  
VSS  
DBI2#  
D35#  
E10  
E11  
E12  
E13  
E14  
E15  
E16  
E17  
E18  
E19  
E20  
E21  
E22  
E23  
E24  
E25  
E26  
E27  
Notes:  
AP0#  
M9  
VCC  
BR2#  
M23  
M24  
M25  
M26  
M27  
M28  
M29  
M30  
M31  
N1  
VCC  
DSTBP1#  
DSTBN1#  
VSS  
VCC  
VCC  
VSS  
Reserved  
Reserved  
DP3#  
A28#  
VCC  
A24#  
VSS  
DSTBP0#  
DSTBN0#  
VCC  
VSS  
VCC  
VCC  
COMP1  
VSS  
VSS  
DP1#  
VCC  
D5#  
D28#  
DRDY#  
TRDY#  
VCC  
No Connect  
No Connect  
No Connect  
VSS  
D2#  
VSS  
VSS  
D27#  
D0#  
D22#  
RS0#  
N2  
Reserved  
Reserved  
SM_TS_A1  
No Connect  
No Connect  
No Connect  
VSS  
VCC  
HIT#  
N3  
VCC  
D19#  
VSS  
N4  
VSS  
D16#  
TCK  
N5  
VCC  
VSS  
TDO  
N6  
VSS  
SM_VCC  
SM_VCC  
VCC  
N7  
VCC  
FERR#  
N8  
VSS  
Pins are numbered with respect to the 604-pin grid array ZIF connector. The grid originates at  
the upper left corner of the socket and is numbered with columns 1 through 31 along the top, and letters A  
through AE (without I, O, Q, S, X, or Z) down the side. Columns 10 through 22 of rows G through W are vacant.  
#
Signal is active low.  
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8.8 System Management Interfaces  
8.8.1  
ICMB Connector  
CN21 [Key-N]  
The external Intelligent Chassis Management Bus (ICMB) provides external access to IMB  
devices that are within the chassis. This makes it possible to externally access chassis  
management functions, alert logs, post-mortem data, etc. It also provides a mechanism for  
chassis power control. As an option, the server can be configured with an ICMB adapter board  
to provide two RJ45 8-pin connectors to allow daisy-chained cabling. Additional information  
about the ICMB can be found in the External Intelligent Management Bus Bridge External  
Program Specification.  
Table 43. ICMB Connector Pin-out  
ICMB [Key-N]  
Pin  
Name  
1
2
3
4
5
XP05S  
ICMB_TX  
ICMB_TX_ENB  
ICMB_RX  
GND  
8.8.2  
Auxiliary I2C* Connector  
IPMB CN44 [Key-D]  
The baseboard provides a 3-pin auxiliary I2C connector for OEM access to the IPMB. This  
connector is not isolated when power is off. Any devices connected must remain powered in  
this state or the BMC will not work properly.  
Caution: A shorted I2C connection at the auxiliary I2C connector will prevent restoration of main  
power because the BMC needs the bus to boot the server from standby power.  
Table 44. IPMB Connector Pinout  
CN44 [Key-D]  
Pin  
Name  
IPMB_DATA+00  
GND  
1
2
3
IPMB_CLK+00  
60  
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8.9 Baseboard Fan Connectors  
(FAN1 through FAN8)  
SHG2 provides eight 3-pin, shrouded, and keyed fan connectors. Each fan can be equipped  
with a sensor that indicates whether the fan is operating. Two fan connectors are for processor  
cooling fans, two fan connectors are for back of chassis, and four connectors on the baseboard  
attach to chassis fans equipped with a sensor that indicates whether the fan is operating. The  
chassis fans can also be turned on and off from the BMC. The sensor pins for all of these fans  
are routed to the BMC for failure monitoring  
Figure 11 shows the fan connector locations on the SHG2 server board, and indicates the  
corresponding types of fan.  
CPU1 Fan, CN1  
CPU2 Fan, CN18  
FA N2, CN22  
FA N1, CN23  
FAN5, CN28  
FAN6, CN36  
FAN3, CN41  
FAN4, CN46  
Figure 11. SHG2 Board Fan Connector Locations  
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FAN 1 to  
CN23  
CN 1  
FAN 5 to  
CN28  
Core Cooling Zone  
CN 22  
CN 18  
CN 23  
FAN 3 to  
CN41  
FAN 2 to  
CN22  
CN 28  
CN 36  
FAN 4 to  
CN46  
I/O Cooling Zone  
CN 41  
CN 46  
Figure 12. SHG2 System Redundant Cooling Fan Support  
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Table 45. SC5200 Fan Implementation  
SHG2 Baseboard  
Area Cooled  
Fan  
Location  
SHG2 Fan  
Header  
KHD3HSRP650 Fans  
Redundant Cooling  
Supported  
KHD3BASE450  
Fans  
Core Cooling Zone  
Back  
Front  
Fan1, CN23  
Fan2, CN22  
Fan5, CN28  
Fan6, CN36  
80 x 38mm  
80 x 38mm  
80 x 38mm  
Fan 6 not used  
80 x 25mm  
80 x 25mm  
80 x 32mm  
I/O Cooling Zone  
Processors  
Front  
PWT  
Fan3, CN41  
Fan4, CN46  
CPU1 Fan, CN1  
CPU2 Fan, CN18  
92 x 25mm  
92 x 25mm  
PWT and fans not used  
PWT and fans not used  
80 x 32mm  
Fan 4 not used  
60 x 25mm  
60 x 25mm  
Note: For the KHD3HSRP650 Chassis, processor cooling is implemented via ducted Fans 1, 2 & 5 in the  
core cooling zone rather than using processor wind tunnels (PWT) . The two 80 x 32mm KHD3BASE450  
fans can be connected to any of the four front fan headers.  
8.9.1  
Fan Connector Pin-out  
Table 46 lists the signals applied at each pin of the fan connectors, Fan1 – Fan6, CPU1 Fan  
and CPU2 Fan. The pinout is identical for all of the eight fan connectors.  
Table 46. Fan Connector Pinout  
FAN1 – FAN6, CPU1 Fan & CPU2 Fan  
Pin  
1
Signal  
Fan Sense  
Fan Voltage  
GROUND  
2
3
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Intel® SHG2 DP Server Board Technical Product Specification  
8.10 Standard I/O Panel Connectors  
Figure 13 shows a graphical representation with identification of the physical connections at the  
I/O panel (also referred to as the back panel).  
Note: The orientation of the RJ45 connectors for NIC and NIC2 are inverted with respect to one  
another (tab-up and tab-down). The intial production release boards will ship with connectors  
oriented in this fashion. A post production ECO is planned to change the orientation of these  
connectors. Table 47 lists and identifies each of the connectors.  
L
K
G
D
E
A
C
B
F
J
H
I
Figure 13. SHG2 I/O Panel Connector Graphical Locations  
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Table 47. I/O Panel Connectors  
Connector Name Key Connector Name  
Key  
A
USB connector, port C  
USB connector, port B  
USB connector, port A  
USB connector, port D  
Mouse (Keyboard) connector  
Keyboard (Mouse) connector  
F
G
H
I
Serial A (COM1) connector  
Parallel Port connector  
B
C
K
D
E
VGA Video connector  
NIC2 connector (10/100/1000)  
NIC1 connector (10/100)  
Serial B (COM2/EMP) connector  
J
L
8.10.1  
Universal Serial Bus (USB) Interface  
[Key A, B & C] The baseboard provides three stacked USB ports (Port 2 on top, Port 0 in  
middle, Port 1 on bottom). The built-in USB ports permit the direct connection of three USB  
peripherals without an external hub. A fourth USB port [Key K] is available through an on-board  
header (CN33). If more devices are required, an external hub can be connected to either the  
back-panel ports or the on-board header.  
Table 48. USB Connector  
[Key-A, B & C]  
Pin  
Signal  
USB Connector  
1, Port A  
2, Port A  
3, Port A  
4, Port A  
5, Port B  
6, Port B  
7, Port B  
8, Port B  
9, Port C  
10, Port C  
11, Port C  
12, Port C  
USBP1_VCC (Fused VCC, +5V with over current monitor of port 0, 1, and 2)  
USB_P1_N (Differential data line paired with USB_P1_P)  
USB_P1_P (Differential data line paired with USB_P1_N)  
USBP1_GND  
USBP0_VCC (Fused VCC, +5V with over current monitor of port 0, 1, and 2)  
USB_P0_N (Differential data line paired with USB_P0_P)  
USB_P0_P (Differential data line paired with USB_P0_N)  
USBP0_GND  
Port C  
Port B  
Port A  
USBP2_VCC (Fused VCC, +5V with over current monitor of port 0, 1, and 2)  
USB_P2_N (Differential data line paired with USB_P2_P)  
USB_P2_P (Differential data line paired with USB_P2_N)  
USBP2_GND  
Table 49. Internal USB Connector  
USB [Key-K]  
Pin  
Name  
(No Connect)  
Internal USB Connector  
1
2
3
4
5
6
7
USBP3_VCC  
(No Connect)  
USB_P3_N  
(No Connect)  
USB_P3_P  
(No Connect)  
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Internal USB Connector  
Pin  
Name  
USBP3_GND  
Key  
Reserved for future use  
8
9
10  
8.10.2  
Mouse and Keyboard Ports  
[Key-D & E] Two identical PS/2 compatible ports share a common stacked housing. The top  
PS/2 connector is labeled "mouse" and the bottom connector is labeled "keyboard," although  
the SHG2 server board will support swapping these connections.  
Table 50. Mouse and Keyboard Ports  
[Key-D & E]  
Mouse  
Mouse / Keyboard Connector  
Keyboard  
Pin  
Signal  
Description  
Mouse Data  
Ground  
Pin  
Signal  
Description  
Keyboard Data  
Ground  
6
5
1
MSDATA  
GND  
1
2
3
4
5
6
KBDATA  
GND  
2
3
4
5
6
4
3
GND  
Ground  
GND  
Ground  
MSFUSE  
MSCLK  
GND  
+5V  
KBFUSE  
KBCLK  
GND  
+5V  
2
1
Mouse clock  
Ground  
Keyboard clock  
Ground  
8.10.3  
Serial Ports  
[Key-F & L] The SHG2 server board provides one RS-232C serial port and a second serial  
port available through an onboard header [Key L]. The back panel serial port is a D-  
subminiature 9-pin connector.  
Table 51. Serial A Port Connector  
[Key-F]  
Pin  
Signal  
Serial Port Connector  
1
SIODCD + 00_1 (carrier detect)  
SIORXD – 00_1 (receive data)  
SIOTXD – 00_1 (transmit data)  
SIODTR + 00_1 (data terminal ready)  
GROUND  
2
3
4
5
6
7
8
9
1
5
SIODSR + 00_1 (data set ready)  
SIORTS + 00_1 (request to send)  
SIOCTS + 00_1 (clear to send)  
SIORI + 00_1 (ring indicator)  
6
9
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The COM2 serial port can be used either as an emergency management port (EMP) or as a  
normal serial port. As an EMP, COM2 is used as a communication path by the Server  
Management RS-232 connection to the BMC. This port can provide a level of emergency  
management through an external modem. The RS-232 connection can be monitored by the  
BMC when the system is in a powered down (standby) state.  
Table 52 lists the signals present on the COM2 serial port header.  
Table 52. Serial B Port Header: COM2/EMP  
[Key-L]  
Pin  
Signal  
Serial Port Header  
1
SIODCD + 00_2 (carrier detect)  
SIODSR + 00_2 (data set ready)  
SIORXD - 00_2 (receive data)  
SIORTS + 00_2 (request to send)  
SIOTXD - 00_2 (transmit data)  
SIOCTS + 00_2 (clear to send)  
SIODTR + 00_2 (data terminal ready)  
SIORI + 00_2 (ring indicator)  
GROUND  
2
3
4
5
6
7
8
9
10  
KEY  
8.10.4  
Parallel Port  
The IEEE 1284-compatible parallel port, used primarily for a printer, sends data in parallel  
format. The parallel port is accessed through a D-subminiature 25-pin connector.  
Table 53. Parallel Port Connector  
[Key-G]  
Pin  
Signal  
STROBE_L  
Parallel Port Connector  
Pin  
14  
Signal  
1
AUFDXT_L (auto feed)  
2
Data bit 0  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
ERROR_L  
3
Data bit 1  
INIT_L (initialize printer)  
4
Data bit 2  
SLCTIN_L (select input)  
5
Data bit 3  
GND (ground)  
GND  
13  
1
6
Data bit 4  
7
Data bit 5  
GND  
8
Data bit 6  
GND  
25  
14  
9
Data bit 7  
GND  
10  
11  
12  
13  
ACK_L (acknowledge)  
BUSY  
GND  
GND  
PE (paper end)  
SLCT (select)  
GND  
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8.10.5  
Video Port  
The video port interface is a standard VGA-compatible 15-pin connector. An ATI Rage XL  
video controller, with 8 MB of onboard video SDRAM, supplies on-board video.  
Table 54. Video Connector  
[Key-H]  
Pin  
1
Signal  
Video Connector  
Pin  
Signal  
GRED+10 (analog color signal R)  
9
5 V  
2
GGREEN+10 (analog color signal G)  
10  
11  
12  
13  
14  
15  
GND  
5
1
3
GBLUE+10 (analog color signal B)  
No connection  
SDA –10  
4
No connection  
GND  
10  
6
5
GHSYNC+10 (horizontal sync)  
GVSYNC+10 (vertical sync)  
SCL -10  
6
GND  
15  
11  
7
GND  
8
GND  
8.10.6  
Ethernet Connectors  
[Key – I & J] The system supports two onboard network interface controllers, one 10/100  
Mbps (NIC-1) and one 10/100/1000 Mbps (NIC-2) These Ethernet connectors are each single  
RJ-45 connectors with integrated activity / link and speed / status LEDs.  
Table 55. Ethernet Connectors  
[Key-I & J]  
Pin  
NIC1 Signal (10/100)  
L1TD +  
NIC2 Signal (10/100/1000)  
TR0 +  
Ethernet Connectors  
1
2
L1TD –  
TR0 –  
3
GND  
TR1 +  
4
Chassis GND  
Chassis GND  
GND  
TR1 –  
5
2.5V VCC  
6
2.5V VCC  
7
L1RD +  
TR2 +  
NIC2  
NIC1  
8
L1RD –  
TR2 –  
9
LAN1_ACTIVE_LED +  
LAN1_LINK_LED +  
LAN1_SPEED_LED  
3 V Standby  
Chassis GND  
Chassis GND  
TR3 +  
10  
11  
12  
13  
14  
TR3 –  
LAN2_ACTIVE_LED  
LAN2_LINK_LED  
PSLED_YELLOW  
PSLED_GREEN  
The 82550PM drives LEDs on the network interface connector that indicate transmit/receive  
activity on the LAN, a valid link to the LAN, and 10- or 100-Mbps operation. The green LED  
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indicates network connection when illuminated, and TX/RX activity when blinking. When the  
SPEED LED is OFF, it indicates network connection at 10Mbps; a green LED indicates 100-  
Mbps operation when illuminated.  
Table 56. LAN1 10/100 LED Schemes  
SPEED LED Color  
OFF  
Speed  
LNK/ACT LED Function  
10Mbps  
100Mbps  
GREEN  
Valid LINK  
GREEN  
BLINKING  
Valid ACTIVITY  
The 82544GC drives LEDs on the network interface connector that indicate transmit/receive  
activity on the LAN, a valid link to the LAN, and 10- or 100- or 1000-Mbps operation. The single  
green LED indicates network connection when illuminated, and TX/RX activity when blinking.  
When the SPEED LED is not illuminated, it indicates network connection at10-Mbps operation.  
When the SPEED LED is illuminated in green, it indicates network connection at100-Mbps  
operation. Amber illumination indicates a network connection at 1000-Mbps.  
Table 57. LAN2 10/100/1000 LED Schemes  
SPEED LED Color  
OFF  
Speed  
LNK/ACT LED Function  
10Mbps  
100Mbps  
1000Mbps  
GREEN  
Valid LINK  
GREEN  
BLINKING  
Valid ACTIVITY  
AMBER  
The following diagram shows the I/O shield provided with the SHG2 board.  
Figure 14. SHG2 I/O Panel Connector Location Dimensions  
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8.11 Connector Manufacturers and Part Numbers  
Table 58 shows the quantity and manufacturers’ part numbers for connectors on the  
baseboard. Item numbers reference the circled numbers on the mechanical drawing. Refer to  
manufacturers’ documentation for more information on connector mechanical specifications.  
Table 58. Baseboard Connector Manufacturer Part Numbers  
Interface  
Description / Manufacturer  
Item Number  
Qty  
Definition  
SSI Main Power  
CONN, HDR, 2 X 12, PLG, VT, 0.165, 093ST, KP P  
Molex Connector Corporation  
1
0442060001  
HM91120-P2  
Foxconn Electronics, Inc.  
P2 +12V Power  
CONN, HDR, 2 X 4, PLG, VT, 0.165, 093ST, KP PG  
Molex Connector Corporation  
1
39-29-9082  
794305-1  
Tyco Electronics Corporation  
Foxconn Electronics, Inc.  
HM25040-P2  
70541-0004  
P3 Signal  
Connector  
Molex Connector Corporation  
VESA Video  
CONN, I/O, 15P, DSUB, RA, 0.05, 062ST, SHIELDE  
Foxconn Electronics, Inc.  
1
1
1
1
DZ11A36-R9  
DT10126-R9  
DM11356-R1  
1116151-2  
Serial #1 Comm  
Parallel Comm  
CONN, I/O, 9P, DSUB, RA, .109, 062ST  
Foxconn Electronics, Inc.  
CONN, I/O, 25P, DSUB, RA, .109, 093ST  
Foxconn Electronics, Inc.  
NIC #1 with  
integrated Activity  
LED"  
CONN, I/O, 16P, RJ45/USB, RA, 0.1, 062ST  
Tyco Electronics Corporation  
Stacked Keyboard CONN, I/O, 12P, DIN, RA, 0.1, 093ST  
1
1
1
1
and Mouse  
Tyco Electronics Corporation  
84405-1  
Foxconn Electronics, Inc.  
MH11067-D5  
PCI 1 and PCI 2  
CONN, CEDG, 120P, PCI, VT, 0.05, 093ST  
Foxconn Electronics, Inc.  
EH06011-PC-W  
EH06013-GC-W  
Foxconn Electronics, Inc.  
PCI 3, PCI 4 and  
PCI 5  
CONN, CEDG, 184P, PCI, VT, 0.05, 062ST  
Tyco Electronics Corporation  
145169-4  
Foxconn Electronics, Inc.  
EH09211-R4-W  
PCI 6  
CONN, CEDG, 184P, PCI, VT, 0.05, 062ST  
Tyco Electronics Corporation  
145168-4  
Foxconn Electronics, Inc.  
EH09211-R3-W  
0711095005  
PC33013-20  
Molex Connector Corporation  
Foxconn Electronics, Inc.  
Serial #2 Comm  
Header  
CONN, HDR, 2 X 5, PLG, VT, 0.1, 062ST, KP 10, P  
Tyco Electronics Corporation  
1
1
111950-1  
Floppy  
CONN, HDR, 2 X 17, PLG, VT, 0.1, 062ST, KP 5, S  
Foxconn Electronics, Inc.  
HL09177-P4  
111972-7  
Tyco Electronics Corporation  
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Qty  
Interface  
Description / Manufacturer  
Foxconn Electronics, Inc.  
Item Number  
Definition  
HL13178  
Tyco Electronics Corporation  
Molex Connector Corporation  
111685-7  
0872563456  
Primary and  
Secondary ATA  
CONN, HDR, 2 X 20, PLG, VT, 0.1, 062ST, KP 20  
Foxconn Electronics, Inc.  
1
HL09207-D2  
111971-8  
Tyco Electronics Corporation  
Foxconn Electronics, Inc.  
HL13208  
Tyco Electronics Corporation  
111685-8  
Molex Connector Corporation  
0872564056  
SCSI U320  
Internal and  
External  
CONN, HDR, 2 X 34, RCP, VT, 0.1, 093ST, KP SHR  
Foxconn Electronics, Inc.  
1
QA01343-P4  
0743051302  
Molex Connector Corporation  
SSI Front Panel  
CONN, HDR, 2 X 12, PLG, VT, 0.1, 062ST, KP 3  
Foxconn Electronics, Inc.  
1
1
HC1912G-D5  
Extended Front  
Panel  
CONN, HDR, ST, PLRZ, 2X(4)P  
Foxconn Electronics, Inc.  
HC1904G-D0  
2-146220-1  
Tyco Electronics Corporation  
Intrusion Switch  
Header  
CONN, HDR, 1 X 2, PLG, VT, 0.1, 093ST, KP PG  
Foxconn Electronics, Inc.  
1
HF06021-P1  
UB1112C-M1  
Stacked USB Port Foxconn Electronics, Inc.  
1, 2 and 3  
1
1
1
ICMB, Four  
Position version  
Molex Connector Corporation  
22-03-5055  
Bay A Hot Swap  
Drive I2C  
CONN, HDR, 1 X 4, PLG, VT, 2MM, 093ST, KP PG  
Foxconn Electronics, Inc.  
HF55040-C1  
HF55040-C1  
HF08030-P1  
Bay B Hot Swap  
Drive I2C  
CONN, HDR, 1 X 4, PLG, VT, 2MM, 093ST, KP PG  
Foxconn Electronics, Inc.  
1
1
1
All Eight Fans  
CONN, HDR, 1 X 3, PLG, VT, 0.1, 093ST, KP 1, SH  
Foxconn Electronics, Inc.  
Speaker  
AUDIO XDCR, 80OHM, 2400HZ, 85DB, THM, 5V  
Challenge Electronics  
DBX-05A  
RDI Electronics, Inc.  
DMT-1206[I]  
Retention  
2
Mechanisms  
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General Specifications  
Intel® SHG2 DP Server Board Technical Product Specification  
9. General Specifications  
This chapter specifies the operational parameters and physical characteristics for the Intel  
SHG2 server board. This is a board-level specification only. System specifications are beyond  
the scope of this document.  
9.1 Absolute Maximum Electrical and Thermal Ratings  
Operation of the SHG2 server board at conditions, beyond those shown in the following table,  
may cause permanent damage to the system (provided for stress testing only). Exposure to  
absolute maximum rating conditions for extended periods may affect system reliability.  
Table 59 lists the maximum component case temperatures for baseboard components that  
could be sensitive to thermal changes. The operating temperature, current load, or operating  
frequency could affect case temperatures. Maximum case temperatures are important when  
considering proper airflow to cool the motherboard.  
Table 59. Absolute Maximum Electrical and Thermal Specifications  
Operating Temperature  
5°C to +50°C 1  
-55°C to +150°C  
-0.3V to Vdd + 0.3V 2  
-0.3 to +3.63V  
Storage Temperature  
Voltage on any signal with respect to ground  
3.3V supply voltage with respect to ground  
5V supply voltage with respect to ground  
Notes:  
-0.3 to +5.5V  
1. Chassis design must provide proper airflow to avoid exceeding Intel®  
Xeon™ IHS (integrated heat spreader) maximum case temperature.  
2. VDD means supply voltage for the device.  
Caution: An ambient temperature that exceeds the board’s maximum operating temperature by  
5°C to 10°C might cause components to exceed their maximum case temperature. When  
determining system compliance, considerations should be given for maximum rated ambient  
temperatures.  
Table 60. Thermal Specification for Key Components  
Component  
Intel® Xeon™ processor, rating to meet Flexible Motherboard  
(FMB) guidelines.  
Maximum Temperature  
78°C (thermal plate)  
CMIC-LE  
100°C (case)  
100°C (case)  
100°C (case)  
85°C (case)  
85°C (case)  
70°C (case)  
CIOB-X2  
CSB5  
82550PM Ethernet Controller  
82544GC Gigabit Ethernet Controller  
Lithium battery  
Note:  
*The Intel® Xeon™ processor uses an IHS. Thermal specifications relate to processor operation  
under maximum power dissipation conditions with the HIS installed.  
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General Specifications  
9.2 Airflow Specification for CIOB-X2 and CMIC-LE  
The maximum thermal specifications for components listed require installation of a heat sink or  
maintenance of a minimum level of airflow. Failure to maintain sufficient cooling airflow will  
result in components exceeding maximum case temperature. Table 61 lists several chipset  
components and their required airflow.  
Table 61. Airflow Specification for Key Components  
Component Maximum Power  
Tja at 1 M/sec  
Airflow  
Tjc  
Tj (Max)  
CIOB-X2  
CMIC-LE  
7.0 W  
10 W  
28 C/W  
5 C/W  
0.4 C/W  
0.2 C/W  
100 C  
100 C  
9.3 Electrical Specifications  
DC and AC specifications for the SHG2 server board are summarized here.  
9.3.1 Power Consumption  
Table 62 shows the power consumed on each supply line for a SHG2 baseboard configured  
with two processors, each a 65W maximum, and 2 DIMMs stacked burst with 4 DIMMs in  
standby at 70% maximum.  
Note: The following numbers are provided as an example. Actual power consumption will vary  
depending on the exact SHG2 configuration.  
Table 62. SHG2 Power Budget  
Description  
Peripheral Bay  
Hard Drives  
Add-In Slots  
Cooling  
# Items  
3.3v  
5v  
0.7  
4.7  
2.0  
12v  
0.7  
5.6  
-12v  
5v stby 3.3v stby  
2
5
3
6
4
1
1
6.1  
2.5  
12.7  
2.7  
1.4  
25.5  
306.2  
Processors  
Server board (Misc.)  
Quick Server board Spec  
Total Power (Amps)  
Total Power (Watts)  
1.5  
5.1  
14.0  
69.8  
3.8  
9.8  
32.4  
0.2  
0.2  
2.4  
1.5  
1.5  
7.7  
Total  
Watts  
418  
For your system or configured calculations, please add the power consumed by all devices  
plugged into the server board.  
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General Specifications  
Intel® SHG2 DP Server Board Technical Product Specification  
9.3.2  
Power Supply Specifications  
This section provides power supply design guidelines for an SHG2-based system, including  
voltage and current specifications, and power supply power cycling sequence characteristics.  
Table 63. SHG2 DC Power Supply Voltage Specification  
Parameter  
+3.3 V  
+5 V  
Min  
+3.168  
+4.80  
Nom  
+3.30  
+5.00  
+12.00  
-12.20  
+5.00  
Max  
+3.46  
+5.25  
+12.60  
-13.08  
+5.25  
Units  
Vrms  
Vrms  
Vrms  
Vrms  
Vrms  
Tolerance  
+5/-4%  
+5/-4%  
+5/-4%  
+9/-5%  
+5/-3%  
+12 V  
+11.52  
-11.40  
+4.85  
-12 V  
+5 VSB  
Table 64. SHG2 Ripple and Noise Specification  
+3.3V  
+5V  
+12V  
-12V  
+5VSB  
50mVp-p  
50mVp-p  
120mVp-p  
120mVp-p  
50mVp-p  
9.3.2.1  
Power Timing  
These are the timing requirements for single power supply operation.  
The output voltages must rise from 10% to within regulation limits (Tvout_rise) within 5 to 70ms.  
The +3.3 V, +5 V and +12 V output voltages should start to rise approximately at the same  
time. All outputs must rise monotonically. The +5 V output needs to be greater than the +3.3 V  
output during any point of the voltage rise. The +5 V output must never be greater than the  
+3.3 V output by more than 2.25 V. Each output voltage shall reach regulation within 50ms  
(Tvout_on) of each other during turn on of the power supply. Each output voltage shall fall out of  
regulation within 400msec (Tvout_off) of each other during turn off. Table 65 shows the output  
voltage timing parameters.  
Table 65. Voltage Timing Parameters  
Item  
Tvout_rise  
Description  
Output voltage rise time from each main  
output.  
Min  
Max  
Units  
msec  
5
70  
All main outputs must be within regulation of  
each other within this time.  
50  
msec  
msec  
Tvout_on  
T vout_off  
All main outputs must leave regulation within  
this time.  
400  
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Vout  
10% Vout  
V1  
V2  
V3  
V4  
Tvout  
Tvout_on  
rise  
Tvout  
on  
Figure 15. Output Voltage Timing  
Table 66 shows the timing requirements for the power supply being turned on and off via the  
AC input with PSON held low, and the power supply being turned on and off with the PSON  
signal after AC input is applied.  
Table 66. Turn On/Off Timing  
Item  
Tsb_on_delay  
Description  
Delay from AC being applied to 5VSB being  
within regulation.  
Min  
Max  
1500  
Units  
msec  
msec  
msec  
msec  
msec  
msec  
msec  
T ac_on_delay  
Tvout_holdup  
Tpwok_holdup  
Tpson_on_delay  
T pson_pwok  
Tpwok_on  
Delay from AC being applied to all output  
voltages being within regulation.  
2500  
Time all output voltages stay within regulation  
after loss of AC.  
21  
20  
5
Delay from loss of AC to deassertion of  
PWOK  
Delay from PSON# active to output voltages  
within regulation limits.  
400  
50  
Delay from PSON# deactive to PWOK being  
deasserted.  
Delay from output voltages within regulation  
limits to PWOK asserted at turn on.  
100  
1000  
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Item  
Intel® SHG2 DP Server Board Technical Product Specification  
Description  
Min  
1
Max  
Units  
msec  
T pwok_off  
Tpwok_low  
Tsb_vout  
Delay from PWOK deasserted to output  
voltages (3.3V, 5V, 12V, -12V) dropping out  
of regulation limits.  
msec  
msec  
Duration of PWOK being in the deasserted  
state during an off/on cycle using AC or the  
PSON signal.  
100  
50  
Delay from 5VSB being in regulation to O/Ps  
being in regulation at AC turn on.  
1000  
Tvout_holdu  
p
Vout  
Tpwok_low  
TAC_on_dela  
y
Tsb_on_del  
Tpwok_off  
Tsb_on_delay  
Tpwok_on  
Tpwok_off  
Tpwok_on  
ay  
PWOK  
Tpson_pwok  
Tpwok_holdup  
5VSB  
Tsb_vout  
PSON  
Tpson_on_dela  
y
AC turn on/off cycle  
PSON turn on/off cycle  
Figure 16. Turn On/Off Timing  
9.3.2.2  
Voltage Recovery Timing Specifications  
The power supply must conform to the following specifications for voltage recovery timing under  
load changes:  
1. Voltage shall remain within +/- 5% of the nominal set voltage on the +5 V, +12 V, 3.3 V, -5 V  
and –12 V outputs, during instantaneous changes in load shown in the table below.  
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2. Voltage regulation limits shall be maintained over the entire AC input range and any steady  
state temperature and operating conditions specified.  
3. Voltages shall be stable as determined by bode plot and transient response. The combined  
error of peak overshoot, set point, regulation, and undershoot voltage shall be less than or  
equal to +/-5% of the output voltage setting. The transient response measurements shall  
be made with a load changing repetition rate of 50Hz to 5kHz. The load slew rate shall not  
be greater than 0.2A/µs.  
Table 67. Transient Load Requirements  
Output  
Load Slew Rate  
Capacitive  
Load  
Step Load Size  
+3.3V  
+5V  
12V1+12V2+12V3  
+5VSB  
25% of max load  
30% of max load  
65% of max load  
25% of max load  
0.5 A/µsec  
0.5 A/µsec  
0.5 A/µsec  
0.5 A/µsec  
1,000 µF  
1,000 µF  
1,000 µF  
10 µF  
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Mechanical Specifications  
Intel® SHG2 DP Server Board Technical Product Specification  
10. Mechanical Specifications  
The following diagrams show the mechanical specifications of the SHG2 server baseboard. All  
dimensions are given in inches, and are dimensioned per ANSI Y15.4M. Connectors are  
dimensioned to pin 1.  
Figure 17. SHG2 Baseboard Mechanical Diagram 1  
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Figure 18. SHG2 Baseboard Mechanical Diagram 2  
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Regulatory and Integration Information  
Intel® SHG2 DP Server Board Technical Product Specification  
11. Regulatory and Integration Information  
11.1 Product Regulatory Compliance  
11.1.1  
Product Safety Compliance  
The Intel SHG2 Server Board complies with the following safety requirements:  
UL 1950 – CSA60 950 (US/Canada)  
EN60 950 & 73/23/EEC (European Union)  
IEC60 950 (International)  
GOST R 50377-92 (Russia)  
11.1.2  
Product EMC Compliance  
The SHG2 Server Board has been tested and verified to comply with the following  
electromagnetic compatibility (EMC) regulations when installed in a compatible Intel host  
system. For information on compatible host system(s), contact your local Intel representative.  
FCC (Class A Verification) – Radiated & Conducted Emissions (USA)  
ICES-003 (Class A) – Radiated & Conducted Emissions (Canada)  
CISPR 22 (3RD Edition) – Radiated & Conducted Emissions (International)  
AS/NZS 3548 (Class A) – Radiated & Conducted Emissions (Australia / New Zealand)  
RRL (MIC Notice 1997-42) Radiated & Conducted Emissions (Korea)  
BSMI (CNS13438) Radiated & Conducted Emissions (Taiwan)  
11.1.3  
Product Regulatory Compliance Markings  
This product is provided with the following Product Certification Markings.  
CE Mark  
Korea MIC Mark  
Canada/US UR E139761Mark  
Canada ICES-003 CLASS A Mark  
Russian GOST Mark  
Australian/New Zealand C-Tick Mark  
Taiwan BSMI Certification Number D33025 and BSMI EMC Warning  
11.2 Electromagnetic Compatibility Notices  
11.2.1  
Europe (CE Declaration of Conformity)  
This product has been tested in accordance too, and complies with the Low Voltage Directive  
(73/23/EEC) and EMC Directive (89/336/EEC). The product has been marked with the CE Mark  
to illustrate its compliance.  
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11.2.2  
Australian Communications Authority (ACA) (C-Tick Declaration of  
Conformity)  
This product has been tested to AS/NZS 3548, and complies with ACA emission requirements.  
The product has been marked with the C-Tick Mark to illustrate its compliance.  
11.2.3  
Ministry of Economic Development (New Zealand) Declaration of  
Conformity  
This product has been tested to AS/NZS 3548, and complies with New Zealand’s Ministry of  
Economic Development emission requirements.  
11.2.4  
BSMI (Taiwan)  
The BSMI Certification number 3902I904 is silk screened on the component side of the server  
board. The following BSMI EMC warning is located on solder side of the server board.  
11.3 Replacing the Back up Battery  
The lithium battery on the server board powers the RTC for up to 10 years in the absence of  
power. When the battery starts to weaken, it loses voltage, and the server settings stored in  
CMOS RAM in the RTC (for example, the date and time) may be wrong. Contact your  
customer service representative or dealer for a list of approved devices.  
WARNING  
Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent  
type recommended by the equipment manufacturer. Discard used batteries according to  
manufacturer’s instructions.  
ADVARSEL!  
Lithiumbatteri - Eksplosionsfare ved fejlagtig håndtering. Udskiftning må kun ske med batteri af  
samme fabrikat og type. Levér det brugte batteri tilbage til leverandøren.  
ADVARSEL  
Lithiumbatteri - Eksplosjonsfare. Ved utskifting benyttes kun batteri som anbefalt av  
apparatfabrikanten. Brukt batteri returneres apparatleverandøren.  
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Intel® SHG2 DP Server Board Technical Product Specification  
VARNING  
Explosionsfara vid felaktigt batteribyte. Använd samma batterityp eller en ekvivalent typ som  
rekommenderas av apparattillverkaren. Kassera använt batteri enligt fabrikantens instruktion.  
VAROITUS  
Paristo voi räjähtää, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan  
laitevalmistajan suosittelemaan tyyppiin. Hävitä käytetty paristo valmistajan ohjeiden  
mukaisesti.  
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Appendix A: Glossary  
Appendix A: Glossary  
Term  
AGTL+  
Definition  
Assisted Gunning Transceiver Logic +  
Application Processor  
AP  
APIC  
ASF  
Advanced Programmable Interrupt Controller  
Alert Standard Forum  
ASR  
Asynchronous System Reset  
Ball-Grid Array  
BGA  
BIST  
Built-In Self Test  
BMC  
Baseboard Management Controller  
Bootstrap Processor  
BSP  
CIOB-X2  
CMIC-LE  
CSB5  
DDR SDRAM  
DIMM  
DMTF  
DP  
PCI-X 64-bit bridge  
Processor, CIOB-X2, memory interface device, and legacy PCI bridge (P32-C)  
Legacy I/O controller bridge  
Double Data Rate SDRAM  
Dual Inline Memory Module  
Distributed Management Task Force  
Dual-processor  
DRAM  
EMC  
Dynamic Random Access Memory  
Electromagnetic Compatibility  
Electromagnetic Interference  
Emergency Management Port  
Flexible Motherboard  
EMI  
EMP  
FMB  
FRB  
Fault Resilient Booting  
FSB  
Front-Side Bus  
General Purpose Input  
GPI  
General Purpose I/O  
GPIO  
GPO  
ICMB  
IDE  
General Purpose Output  
Intelligent Chassis Management Bus  
Integrated Drive Electronics  
Integrated Heat Spreader  
Intra Module Bus  
IHS  
IMB  
IPMB  
IRQ1  
LCD  
LVD  
MP  
Intelligent Platform Management Bus  
Interrupt Request  
Liquid Crystal Display  
Low-Voltage Differential  
Multi-processor  
MT/s  
MSR  
NIC  
Mega Transfers per second  
Model-Specific Register  
Network Interface Card  
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Intel® SHG2 DP Server Board Technical Product Specification  
NMI  
Non-maskable Interrupt  
PBGA  
PGA  
PIC  
Pin Ball Grid Array  
Pin Grid Array  
Programmable Interrupt Controller  
Power On Self Test  
POST  
RISC  
RTC  
Reduced Instruction Set Computing  
Real Time Clock  
SEC  
Single Edge Contact  
SEL  
System Event Log  
SERIRQ  
SDRAM  
SHV  
Serialized IRQ  
Synchronous Dynamic RAM  
Standard High Volume  
Super I/O* bridge  
SIO  
SM  
Server Management  
SMI  
System Management Interrupt  
Server Management Module  
Surface Mount Technology  
Super Video Graphics Array  
Test Access Port  
SMM  
SMT  
SVGA  
TAP  
TBD  
To Be Determined  
Thin-IMB  
USB  
Thin-Intra Module Bus  
Universal Serial Bus  
VGA  
VRM  
ZCR  
Video Graphics Array  
Voltage Regulator Module  
Zero Channel RAID  
ZIF  
Zero Insertion Force  
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Appendix B: Reference Documents  
Appendix B: Reference Documents  
Refer to the following documents for additional information:  
Foster Processor Electrical, Mechanical, and Thermal Specification Rev 1.5  
ServerWorks Champion Memory & I/O Controller-Low End (CMIC-LE) Specification Rev  
2.0  
ServerWorks Champion South Bridge (CSB5) Specification Rev 2.0  
ServerWorks Champion IO Bridge (CIOB-X2) Specification Rev 1.3  
National PC87417 Datasheet Rev 0.13  
PCI Local Bus Specification, Revision 2.2  
PCI-X Addendum to the PCI Local Bus Specification Rev 1.0a  
USB Specification, Revision 1.1  
SHG2 Basic Input Output System (BIOS) External Product Specification, Revision 0.5,  
Intel reference number OR-xxxx.  
3 Volt Flash File (29LV800TAx8) Datasheet.  
PCI Bus Power Management Interface Specification.  
AIC-7899 PCI Bus Master Dual-Channel Ultra160 Embedded SCSI ASIC Data Book  
AIC-7902 PCI-X Bus Master Dual-Channel Ultra320 Embedded SCSI ASIC Data Book  
ATI RAGE XL Technical Reference Manual.  
I2C Bus Specification.  
Intelligent Platform Management Bus Communications Protocol Specification  
VRM 9.1 DC-DC Converter Specification.  
Intel82550 Fast Ethernet Multifunction PCI/CardBus Controller Datasheet.  
Intelligent Platform Management Interface (IPMI) Specification Rev 1.5  
SSI Specification for Entry Server Rev 3.0  
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