Intel® Desktop Board
D810EMO/MO810E
Technical Product Specification
February 2000
Order Number A00653-001
®
The Intel Desktop Board D810EMO/MO810E may contain design defects or errors known as errata that may cause the product to deviate from published specifications. Current
characterized errata are documented in the Intel Desktop Board D810EMO/MO810E Specification Update.
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Preface
This Technical Product Specification (TPS) specifies the board layout, components, connectors,
power and environmental requirements, and the BIOS for the D810EMO/MO810E desktop board.
It describes the standard product and available manufacturing options.
The D810EMO desktop board is known in some documentation and sales collateral as the
MO810E. Both names refer to the same product.
Intended Audience
The TPS is intended to provide detailed, technical information about the board and its components
to the vendors, system integrators, and other engineers and technicians who need this level of
information. It is specifically not intended for general audiences.
What This Document Contains
Chapter Description
1
2
3
4
5
A description of the hardware used on this board
A map of the resources of the board
The features supported by the BIOS Setup program
The contents of the BIOS Setup program’s menus and submenus
A description of the BIOS error messages, beep codes, and POST codes
Typographical Conventions
This section contains information about the conventions used in this specification. Not all of these
symbols and abbreviations appear in all specifications of this type.
Notes, Cautions, and Warnings
NOTE
✏
Notes call attention to important information.
CAUTION
Cautions are included to help you avoid damaging hardware or losing data.
WARNING
Warnings indicate conditions that, if not observed, can cause personal injury.
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
Other Common Notation
#
Used after a signal name to identify an active-low signal (such as USBP0#)
(NxnX)
When used in the description of a component, N indicates component type, xn are the relative
coordinates of its location on the board, and X is the instance of the particular part at that
general location. For example, J5J1 is a connector, located at 5J. It is the first connector in the
5J area.
KB
Kilobyte (1024 bytes)
Kbit
MB
Mbit
GB
xxh
Kilobit (1024 bits)
Megabyte (1,048,576 bytes)
Megabit (1,048,576 bits)
Gigabyte (1,073,741,824 bytes)
An address or data value ending with a lowercase h indicates a hexadecimal value.
Volts. Voltages are DC unless otherwise specified.
x.x V
†
This symbol is used to indicate third-party brands and names that are the property of their
respective owners.
iv
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Contents
1 Product Description
1.1 Overview ................................................................................................................... 10
1.1.1
1.1.2
1.1.3
Feature Summary ....................................................................................... 10
Board Layout............................................................................................... 11
Block Diagram............................................................................................. 12
1.2 Online Support........................................................................................................... 13
1.3 Design Specifications ................................................................................................ 13
1.4 Processor .................................................................................................................. 16
1.5 System Memory......................................................................................................... 17
1.6 Intel® 810E Chipset ................................................................................................... 18
1.6.1
1.6.2
1.6.3
1.6.4
Direct AGP .................................................................................................. 19
USB............................................................................................................. 19
IDE Support................................................................................................. 20
Real-Time Clock, CMOS SRAM, and Battery.............................................. 20
1.7 I/O Controller............................................................................................................. 21
1.8 Serial Debug Port ...................................................................................................... 21
1.9 Graphics Subsystem ................................................................................................. 22
1.10 Audio Subsystem....................................................................................................... 23
1.10.1 Creative Sound Blaster AudioPCI 128V ...................................................... 23
1.10.2 Creative ES1373D Digital Audio Controller.................................................. 23
1.10.3 Crystal Semiconductor CS4297A Analog Codec......................................... 23
1.10.4 Audio Connectors........................................................................................ 24
1.11 Hardware Monitor Component................................................................................... 24
1.12 LAN Subsystem......................................................................................................... 25
1.12.1 Intel® 82559 PCI LAN Controller ................................................................. 25
1.12.2 LAN Subsystem Software............................................................................ 26
1.12.3 RJ-45 LAN Connector LEDs........................................................................ 26
1.13 Power Management Features.................................................................................... 27
1.13.1 ACPI............................................................................................................ 27
1.13.2 Hardware Support ....................................................................................... 29
2 Technical Reference
2.1 Introduction................................................................................................................ 33
2.2 Memory Map ............................................................................................................. 33
2.3 I/O Map ..................................................................................................................... 34
2.4 DMA Channels .......................................................................................................... 35
2.5 PCI Configuration Space Map ................................................................................... 36
2.6 Interrupts ................................................................................................................... 36
2.7 PCI Interrupt Routing Map......................................................................................... 37
2.8 Connectors................................................................................................................ 38
2.8.1
2.8.2
2.8.3
Back Panel I/O Connectors ......................................................................... 39
Internal I/O Connectors ............................................................................... 41
External I/O Connectors.............................................................................. 46
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
2.9 Jumper Block............................................................................................................. 49
2.10 Mechanical Considerations........................................................................................ 51
2.10.1 FlexATX Form Factor.................................................................................. 51
2.10.2 I/O Shield .................................................................................................... 52
2.11 Electrical Considerations ........................................................................................... 53
2.11.1 Add-in Board Considerations....................................................................... 53
2.11.2 Power Consumption.................................................................................... 53
2.11.3 Power Supply Considerations...................................................................... 54
2.11.4 Fan Power Requirements............................................................................ 54
2.12 Thermal Considerations............................................................................................. 55
2.13 Reliability................................................................................................................... 56
2.14 Environmental............................................................................................................ 57
2.15 Regulatory Compliance ............................................................................................. 58
2.15.1 Safety Regulations ...................................................................................... 58
2.15.2 EMC Regulations ........................................................................................ 58
2.15.3 Certification Markings.................................................................................. 59
3 Overview of BIOS Features
3.1 Introduction................................................................................................................ 61
3.2 BIOS Flash Memory Organization ............................................................................. 62
3.3 Resource Configuration............................................................................................. 62
3.3.1
3.3.2
PCI Autoconfiguration ................................................................................. 62
PCI IDE Support.......................................................................................... 63
3.4 System Management BIOS (SMBIOS)...................................................................... 64
3.5 BIOS Upgrades ......................................................................................................... 65
3.5.1
3.5.2
Language Support....................................................................................... 65
Custom Splash Screen................................................................................ 65
3.6 Recovering BIOS Data .............................................................................................. 66
3.7 Boot Options.............................................................................................................. 67
3.7.1
3.7.2
CD-ROM and Network Boot ........................................................................ 67
Booting Without Attached Devices .............................................................. 67
3.8 USB Legacy Support ................................................................................................. 68
3.9 BIOS Security Features............................................................................................. 69
4 BIOS Setup Program
4.1 Introduction................................................................................................................ 71
4.2 Maintenance Menu.................................................................................................... 72
4.2.1
Extended Configuration Submenu............................................................... 73
4.3 Main Menu................................................................................................................. 74
4.4 Advanced Menu......................................................................................................... 75
4.4.1
4.4.2
4.4.3
4.4.4
4.4.5
Boot Configuration Submenu ...................................................................... 76
Peripheral Configuration Submenu.............................................................. 77
IDE Configuration Submenu........................................................................ 78
Event Log Configuration.............................................................................. 81
Video Configuration..................................................................................... 82
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Contents
4.5 Security Menu............................................................................................................ 83
4.6 Power Menu .............................................................................................................. 84
4.7 Boot Menu................................................................................................................. 85
4.8 Exit Menu .................................................................................................................. 87
5 Error Messages and Beep Codes
5.1 BIOS Error Messages................................................................................................ 89
5.2 Port 80h POST Codes............................................................................................... 91
5.3 Bus Initialization Checkpoints .................................................................................... 95
5.4 Speaker..................................................................................................................... 96
5.5 BIOS Beep Codes ..................................................................................................... 97
Figures
1.
2.
3.
4.
5.
6.
7.
8.
9.
Board Components.................................................................................................... 11
Block Diagram ........................................................................................................... 12
Intel 810E Chipset Block Diagram ............................................................................. 18
Back Panel I/O Connectors ....................................................................................... 39
Internal I/O Connectors ............................................................................................. 41
External I/O Connectors ............................................................................................ 46
Location of the Jumper Block .................................................................................... 49
Board Dimensions ..................................................................................................... 51
I/O Shield Dimensions ............................................................................................... 52
10. High Temperature Zones........................................................................................... 55
11. Memory Map of the Flash Memory Device ................................................................ 62
Tables
1.
Feature Summary...................................................................................................... 10
Specifications ............................................................................................................ 13
Processors Supported by the Board.......................................................................... 16
System Memory Configuration................................................................................... 17
Supported Graphics Refresh Rates........................................................................... 22
LAN Connector LED States....................................................................................... 26
Effects of Pressing the Power Switch ........................................................................ 27
Power States and Targeted System Power ............................................................... 28
Wake Up Devices and Events ................................................................................... 29
2.
3.
4.
5.
6.
7.
8.
9.
10. Fan Connector Descriptions ...................................................................................... 30
11. System Memory Map................................................................................................. 33
12. I/O Map ..................................................................................................................... 34
13. DMA Channels .......................................................................................................... 35
14. PCI Configuration Space Map ................................................................................... 36
15. Interrupts ................................................................................................................... 36
16. PCI Interrupt Routing Map......................................................................................... 37
17. USB Connectors........................................................................................................ 40
18. VGA Port Connector.................................................................................................. 40
19. LAN Connector.......................................................................................................... 40
20. Audio Line Out Connector ......................................................................................... 40
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
21. Mic In Connector ....................................................................................................... 40
22. Chassis Fan Connector (J2J1) .................................................................................. 42
23. Processor Fan Connector (J7J1)............................................................................... 42
24. Primary IDE Connector (J7E1) .................................................................................. 42
25. Slimline IDE Connector (J8E1) .................................................................................. 43
26. Serial Debug Port Connector (J7C1) ......................................................................... 43
27. Power Connector (J8B1) ........................................................................................... 44
28. PCI Bus Connector (J4B1) ........................................................................................ 45
29. ATAPI CD-ROM Connector (J2D1) ........................................................................... 45
30. USB Port Connector (J7A1)....................................................................................... 47
31. Front Panel Connector (J8C1)................................................................................... 47
32. States for a Single-colored Power LED...................................................................... 48
33. States for a Dual-colored Power LED ........................................................................ 48
34. BIOS Setup Configuration Jumper Settings (J8F1).................................................... 50
35. Power Usage............................................................................................................. 53
36. Chassis Fan (J3A2) DC Power Requirements........................................................... 54
37. Thermal Considerations for Components .................................................................. 56
38. Board Environmental Specifications .......................................................................... 57
39. Safety Regulations .................................................................................................... 58
40. EMC Regulations....................................................................................................... 58
41. Supervisor and User Password Functions................................................................. 69
42. BIOS Setup Program Menu Functions....................................................................... 71
43. BIOS Setup Program Function Keys ......................................................................... 72
44. Maintenance Menu.................................................................................................... 72
45. Extended Configuration Submenu............................................................................. 73
46. Main Menu................................................................................................................. 74
47. Advanced Menu......................................................................................................... 75
48. Boot Configuration Submenu..................................................................................... 76
49. Peripheral Configuration Submenu............................................................................ 77
50. IDE Configuration Submenu ...................................................................................... 78
51. Primary/Secondary IDE Master/Slave Submenus...................................................... 79
52. Event Log Configuration Submenu............................................................................ 81
53. Video Configuration Submenu................................................................................... 82
54. Security Menu............................................................................................................ 83
55. Power Menu .............................................................................................................. 84
56. Boot Menu................................................................................................................. 85
57. Exit Menu .................................................................................................................. 87
58. BIOS Error Messages................................................................................................ 89
59. Uncompressed INIT Code Checkpoints..................................................................... 91
60. Boot Block Recovery Code Checkpoints ................................................................... 91
61. Runtime Code Uncompressed in F000 Shadow RAM ............................................... 92
62. Bus Initialization Checkpoints .................................................................................... 95
63. Upper Nibble High Byte Functions............................................................................. 95
64. Lower Nibble High Byte Functions............................................................................. 96
65. Beep Codes............................................................................................................... 97
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1 Product Description
What This Chapter Contains
1.1 Overview ................................................................................................................... 10
1.2 Online Support........................................................................................................... 13
1.3 Design Specifications ................................................................................................ 13
1.4 Processor .................................................................................................................. 16
1.5 System Memory......................................................................................................... 17
1.6 Intel® 810E Chipset ................................................................................................... 18
1.7 I/O Controller............................................................................................................. 21
1.8 Serial Debug Port ...................................................................................................... 21
1.9 Graphics Subsystem ................................................................................................. 22
1.10 Audio Subsystem....................................................................................................... 23
1.11 Hardware Monitor Component................................................................................... 24
1.12 LAN Subsystem......................................................................................................... 25
1.13 Power Management Features.................................................................................... 27
9
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
1.1 Overview
1.1.1 Feature Summary
Table 1 summarizes the D810EMO/MO810E board’s major features.
Table 1.
Feature Summary
Form Factor
Processor
FlexATX (9.0 inches by 7.5 inches)
Support for either an Intel® Pentium® III processor in a Flip Chip Pin Grid Array
(FC-PGA) package or an Intel® Celeron™ processor in an FCPGA package or a PPGA
package
Memory
Chipset
• One 168-pin dual inline memory module (DIMM) socket
• Supports up to 256 MB of 100 MHz non-ECC synchronous DRAM (SDRAM)
• Support for serial presence detect (SPD) and non-SPD DIMMs
Intel® 810E chipset, consisting of:
• Intel® 82810E DC-133 Graphics/Memory Controller Hub (GMCH)
• Intel® 82801AA I/O Controller Hub (ICH)
• Intel® 82802AB 4 Mbit Firmware Hub (FWH)
Direct AGP Video • Intel 82810E DC-133 GMCH
• 4 MB of display cache
• VGA port connector on back panel
Audio
Audio Codec ’97 (AC ’97) compatible audio subsystem, consisting of the following:
• Creative Sound Blaster† AudioPCI 128V digital audio controller (ES1373D)
• Crystal Semiconductor CS4297A analog codec
I/O Controller
SMSC LPC47M102 SIO low pin count (LPC) interface I/O controller
Peripheral
Interfaces
• Up to four universal serial bus (USB) ports
• Two IDE interfaces with Ultra DMA support
Serial Debug
Port
One 9-pin stake-pin serial debug port connector
Expansion
capabilities
One PCI bus connector at PCI slot 5 location
Management
Level 4 Support
• Intel® 82559 local area network (LAN) controller
• Hardware monitor
Instantly
Available PC
• Support for PCI Local Bus Specification, Revision 2.2
• Suspend-to-RAM support
• Wake on USB ports
BIOS
• Intel®/AMI BIOS stored in an Intel 82802AB 4 Mbit firmware hub (FWH)
• Support for Advanced Configuration and Power Interface (ACPI), Plug and Play,
and SMBIOS
NOTE
✏
The D810EMO/MO810E board is designed to support only USB-aware operating systems.
10
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Product Description
For information about
Refer to
The board’s compliance level with ACPI, Plug and Play, and SMBIOS
Table 2, page 13
1.1.2 Board Layout
Figure 1 shows the location of the major components on the board.
A B
C
D
Q
E
F
P
O
N
M
L
G
K
J
I
H
OM08923
A
B
C
D
E
F
G
H
I
Crystal Semiconductor CS4297A codec
Creative ES1373D digital audio controller
4 MB display cache
J
Front panel connector
Power connector
K
L
SMSC LPC47M102 I/O controller
Intel 82801AA ICH
Intel 82559 PCI LAN Controller
Speaker
Back panel I/O connectors
Intel 82810E DC-133 GMCH
Processor socket
M
N
O
P
Q
DIMM socket
Battery
Primary IDE connector
PCI bus connector
Slimline Secondary IDE connector
Figure 1. Board Components
11
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
1.1.3 Block Diagram
Figure 2 is a block diagram of the major functional areas of the board.
USB
Port 0
Primary/
Secondary IDE
Interface
ATA33/66
USB
Hub
Port 1
Port 2
Port 3
PPGA370
Processor
Socket
66/100/133
MHz Host Bus
810E Chipset
82810E
Graphics Memory
Controller Hub
(GMCH)
100 MHz
SDRAM
Bus
82802AB
Firmware Hub
(FWH)
AHA
Bus
82801AA I/O Controller Hub
(ICH)
LPC
Bus
DIMM
Socket
4 MB
Display
Cache
VGA
Port
Display
Interface
LPC I/O
Controller
Serial Port
PCI Bus
PCI Bus
Hardware
Monitor
Digital
Controller
SMBus
AC ’97 Link
10/100
Mbps
Ethernet
LAN
Subsystem
PCI Bus
CD-ROM
Line Out
Mic In
Analog
Codec
PCI Bus
Connector
OM09093
Figure 2. Block Diagram
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Product Description
1.2 Online Support
Find information about Intel® desktop boards under “Product Info” or “Customer Support” at these
World Wide Web sites:
1.3 Design Specifications
Table 2 lists the specifications applicable to the D810EMO/MO810E board.
Table 2.
Specifications
Reference
Name
Specification
Title
Version, Revision Date,
and Ownership
This specification is
available at:
AC ‘97
Audio Codec ‘97
Version 2.1,
May 1998,
pc-supp/platform/ac97
Intel Corporation.
ACPI
Advanced Configuration
and Power Interface
Version 1.0,
July 1, 1998,
Specification (2X only)
Intel Corporation,
Microsoft Corporation,
and Toshiba Corporation.
AGP
Accelerated Graphics Port
Interface Specification
Version 2.0,
May 4, 1998,
Intel Corporation.
the Accelerated Graphics
Implementers Forum at:
AMI BIOS
ATA-3
ATAPI
American Megatrends
BIOS Specification
AMIBIOS 99,
June 1999,
American Megatrends, Inc.
bios.platforms.desktop.html
Information Technology -
AT Attachment-3 Interface,
X3T10/2008D
Version 6
ATA Anonymous FTP Site:
Information Technology
AT Attachment with Packet August 13, 1998,
Interface Extensions
T13/1153D
Version 18
T13 Anonymous FTP Site:
x3t13/project/d1153r18.pdf
Contact: T13 Chair,
Seagate Technology
ATX
ATX Specification
Version 2.01,
February 1997,
Intel Corporation.
design/motherbd/atx.htm
El Torito
Bootable CD-ROM format
specification
Version 1.0,
January 25, 1995,
the Phoenix Technologies web
site at:
and IBM Corporation.
specs.html
FlexATX
FlexATX Addendum to the
microATX Specification
Version 1.0
/spec/FlexATXaddn1_01.pdf
continued
13
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
Table 2.
Specifications (continued)
Reference
Name
Specification
Title
Version, Revision Date, and
Ownership
This specification is
available at:
IrDA†
Serial Infrared Physical
Layer Link Specification
Version 1.1, October 17, 1995
Infrared Data Association
Phone: (510) 943-6546
Fax: (510) 943-5600
E-mail: [email protected]
LPC
Low Pin Count Interface
Specification
Version 1.0,
September 29, 1997,
Intel Corporation.
design/chipsets/industry/
lpc.htm
MicroATX
microATX Motherboard
Interface Specification
Version 1.0,
December 1997
Intel Corporation
~ffsupprt/spec/
microatxspecs.htm
SFX Power Supply
Design Guide
Version 1.1,
~ffsupprt/spec/
microatxspecs.htm
February 1998
Intel Corporation
PCI
PCI Local Bus
Specification
Version 2.2,
December 18, 1998,
PCI Special Interest Group.
PCI Bus Power
Version 1.1,
Management Interface
Specification
December 18, 1998,
PCI Special Interest Group.
Plug and
Play
Plug and Play BIOS
Specification
Version 1.0a,
May 5, 1994,
ial/wfm/bio10a.pdf
Compaq Computer Corp.,
Phoenix Technologies Ltd.,
and Intel Corporation.
SDRAM
DIMMs
(64-and
72-bit)
PC SDRAM Unbuffered
DIMM Specification
Revision 1.0,
February 1998,
Intel Corporation.
design/chipsets/memory/
sdram.htm#S1
PC Serial Presence
Detect (SPD)
Specification
Revision 1.2A,
December 1997,
Intel Corporation
design/chipsets/memory/
sdram.htm#S1
SMBIOS
System Management
BIOS
Version 2.3,
August 12, 1998,
ial/wfm/design/smbios
Award Software International Inc.,
Dell Computer Corporation,
Hewlett-Packard Company,
Intel Corporation,
International Business Machines
Corporation,
Phoenix Technologies Limited,
American Megatrends Inc.,
and SystemSoft Corporation.
continued
14
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Product Description
Table 2.
Specifications (continued)
Reference
Name
Specification
Title
Version, Revision Date, and
Ownership
This specification is
available at:
UHCI
Universal Host Controller Version 1.1,
This guide is available at:
developers
Interface Design Guide
March 1996,
Intel Corporation.
USB
Universal Serial Bus
Specification
Version 1.1,
developers/docs.html
September 23, 1998,
Compaq Computer Corporation,
Intel Corporation, Microsoft
Corporation, and NEC.
WfM
Wired for Management
Baseline
Version 2.0,
December 18, 1998,
Intel Corporation
ial/WfM/wfmspecs.htm
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
1.4 Processor
CAUTION
The board supports processors that draw a maximum of 22 amps. Using a processor that draws
more than 22 amps can damage the processor, the board, and the power supply. See the
processor’s data sheet for current usage requirements.
The board supports the processors listed in Table 3. The host bus frequency is automatically
selected.
Table 3.
Processors Supported by the Board
Processor Type
Processor Speed
Host Bus Frequency
L2 Cache Size
Pentium III processor
600EB MHz
133 MHz
256 KB
600E MHz
550E MHz
500E MHz
100 MHz
100 MHz
100 MHz
256 KB
256 KB
256 KB
Celeron processor
533 MHz
500 MHz
466 MHz
433 MHz
400 MHz
366 MHz
66 MHz
66 MHz
66 MHz
66 MHz
66 MHz
66 MHz
128 KB
128 KB
128 KB
128 KB
128 KB
128 KB
All supported onboard memory can be cached, up to the cachability limit of the processor.
For information about
Refer to
Processor support for the D810EMO/MO810E
board
Processor data sheets
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Product Description
1.5 System Memory
CAUTION
To be fully compliant with all applicable Intel® SDRAM memory specifications, the board should
be populated with DIMMs that support the Serial Presence Detect (SPD) data structure. If your
memory modules do not support SPD, you will see a notification to this effect on the screen at
power up. The BIOS will attempt to configure the memory controller for normal operation;
however, DIMMs may not function at the determined frequency.
CAUTION
Because the main system memory is also used as video memory, the board requires a 100 MHz
SDRAM DIMM even though the host bus frequency is 66 MHz. It is highly recommended that an
SPD DIMM be used, since this allows the BIOS to read the SPD data and program the chipset to
accurately configure memory settings for optimum performance. If non-SPD memory is installed,
the BIOS will attempt to correctly configure the memory settings, but performance and reliability
may be impacted.
The board has one DIMM socket. The minimum memory size is 32 MB and the maximum
memory size is 256 MB. The BIOS automatically detects memory type, size, and frequency.
The board supports the following memory features:
•
•
•
•
•
3.3 V, 168-pin DIMM with gold-plated contacts
100 MHz SDRAM
Serial Presence Detect (SPD) or non-SPD memory (BIOS recovery requires an SPD DIMM)
Non-ECC (64-bit) memory
Unbuffered single- or double-sided DIMM
The board is designed to support the DIMM configurations listed in Table 4 below.
Table 4.
System Memory Configuration
DIMM Size
32 MB
Non-ECC Configuration
4 Mbit x 64
64 MB
8 Mbit x 64
128 MB
16 Mbit x 64
256 MB (Note)
Note:
32 Mbit x 64
A 256 MB DIMM used with this board must be built with 128 Mbit device technology.
For information about
Refer to
The PC Serial Presence Detect Specification
Obtaining copies of PC SDRAM specifications
Table 2, page 13
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
1.6 Intel® 810E Chipset
The Intel 810E chipset consists of the following devices:
•
82810E DC-133 Graphics Memory Controller Hub (GMCH) with accelerated hub architecture
(AHA) bus
•
•
82801AA I/O Controller Hub (ICH) with AHA bus
82802AB Firmware Hub (FWH)
The chipset provides the host, memory, display, and I/O interfaces shown in Figure 3.
66/100/133 MHz
ATA33/66
USB
Host Bus
810E Chipset
82810E
Graphics Memory
Controller Hub
(GMCH)
100 MHz
SDRAM
Bus
82802AB
Firmware Hub
(FWH)
AHA
Bus
82801AA I/O Controller Hub
(ICH)
SMBus
PCI Bus
LPC Bus
Display
Interface
AC Link
OM09130
Figure 3. Intel 810E Chipset Block Diagram
For information about
Refer to
The Intel 810E chipset
The resources used by the chipset
Chapter 2
The chipset’s compliance with ACPI and AC ‘97
Table 2, page 13
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Product Description
1.6.1 Direct AGP
Direct (integrated) AGP is a high-performance bus (independent of the PCI bus) for
graphics-intensive applications, such as 3-D applications. AGP overcomes certain limitations of
the PCI bus related to handling large amount of graphics data with the following features:
•
•
Pipelined memory read and write operations that hide memory access latency
Demultiplexing of address and data on the bus for nearly 100 percent bus efficiency
For information about
Refer to
The location of the VGA port connector
Figure 4, page 39
Table 2, page 13
Obtaining the Accelerated Graphics Port Interface Specification
1.6.2 USB
The board supports up to four USB ports; one USB peripheral can be connected to each port. For
more than four USB devices, an external hub can be connected to any of the ports. Two USB ports
are implemented with stacked back panel connectors. The other two ports can be routed from the
connector at location J7A1 via a cable to the front panel. The board fully supports UHCI and uses
UHCI-compatible software drivers. USB features include:
•
Support for self-identifying peripherals that can be connected or disconnected while the
computer is running
•
•
•
•
Automatic mapping of function to driver and configuration
Support for isochronous and asynchronous transfer types over the same set of wires
Support for up to 127 physical devices
Guaranteed bandwidth and low latencies appropriate for telephony, audio, and other
applications
•
Error-handling and fault-recovery mechanisms built into the protocol
NOTE
✏
Computer systems that have an unshielded cable attached to a USB port may not meet FCC
Class B requirements, even if no device or a low-speed USB device is attached to the cable. Use
shielded cable that meets the requirements for full-speed devices.
For information about
Refer to
The location of the USB connectors on the back panel
The signal names of the USB connectors
Figure 4, page 39
Table 17, page 40
Figure 6, page 46
Table 30, page 47
Table 2, page 13
The location of the USB port connector for the front panel
The signal names for the USB port connector for the front panel
The USB and UHCI specifications
19
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
1.6.3 IDE Support
The board has two independent bus-mastering IDE interfaces. These interfaces support:
•
•
ATAPI devices (such as CD-ROM drives)
ATA devices using the transfer modes listed in Table 51 on page 79
The BIOS supports logical block addressing (LBA) and extended cylinder head sector (ECHS)
translation modes. The drive reports the transfer rate and translation mode to the BIOS.
The board supports laser servo (LS-120) diskette technology through its IDE interfaces. The
LS-120 drive can be configured as a boot device by setting the BIOS Setup program’s Boot menu
to one of the following:
•
•
ARMD-FDD (ATAPI removable media device – floppy disk drive)
ARMD-HDD (ATAPI removable media device – hard disk drive)
The board has two IDE interface connectors. The primary IDE connector is a standard 40-pin IDE
interface. The secondary IDE connector is a 50-pin Slimline IDE connector, intended for use with
devices such as 2.5-inch hard disk drives and mobile CD-ROM drives. The Slimline IDE
connector has the standard IDE interface pins but also includes audio and power signals.
For information about
Refer to
The location of the IDE connectors
Figure 5, page 41
Table 24, page 42
Table 25, page 43
Table 56, page 85
The signal names of the primary IDE connector
The signal names of the Slimline secondary IDE connector
BIOS Setup program’s Boot menu
1.6.4 Real-Time Clock, CMOS SRAM, and Battery
The real-time clock is compatible with DS1287 and MC146818 components. The clock provides a
time-of-day clock and a multicentury calendar with alarm features and century rollover. The
real-time clock supports 256 bytes of battery-backed CMOS SRAM in two banks that are reserved
for BIOS use.
A coin-cell battery powers the real-time clock and CMOS memory. When the computer is not
plugged into a wall socket, the battery has an estimated life of three years. When the computer is
plugged in, the 3.3 V standby current from the power supply extends the life of the battery. The
clock is accurate to ± 13 minutes/year at 25 ºC with 3.3 VSB applied.
The time, date, and CMOS values can be specified in the BIOS Setup program. The CMOS values
can be returned to their defaults by using the BIOS Setup program.
NOTE
✏
If the battery and AC power fail, standard defaults, not custom defaults, will be loaded into CMOS
RAM at power on.
20
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Product Description
NOTE
✏
The recommended method of accessing the date in systems with Intel desktop boards is indirectly
from the Real-Time Clock (RTC) via the BIOS. The BIOS on Intel desktop boards contains a
century checking and maintenance feature. This feature checks the two least significant digits of
the year stored in the RTC during each BIOS request (INT 1Ah) to read the date and, if less than
80 (i.e., 1980 is the first year supported by the PC), updates the century byte to 20. This feature
enables operating systems and applications using the BIOS date/time services to reliably
manipulate the year as a four-digit value.
For information about
Refer to
Proper date access in systems with Intel desktop boards
1.7 I/O Controller
The SMSC LPC47M102 I/O controller provides the following features:
•
•
•
•
•
Low pin count (LPC) interface
One serial port
Infrared (IrDA) interface
Intelligent power management, including a programmable wake up event interface
Fan control:
One pulse width modulation (PWM) fan speed control output
One fan tachometer input
The BIOS Setup program provides configuration options for the I/O controller.
For information about
SMSC LPC47M102 I/O controller
The IrDA interface
Refer to
Section 2.8.3, page 46
1.8 Serial Debug Port
The board has one 9-pin serial debug port connector. The serial debug port’s
NS16C550-compatible UART supports data transfers at rates of up to 115.2 kbits/sec with BIOS
support. The serial debug port can be assigned as COM1 (3F8h), COM2 (2F8h), COM3 (3E8h), or
COM4 (2E8h).
For information about
Refer to
The location of the serial debug port connector
The signal names of the serial debug port connector
Figure 5, page 41
Table 26, page 43
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
1.9 Graphics Subsystem
The Intel 82810E DC-133 GMCH graphics memory controller hub component provides the
following graphics support features:
•
•
•
Integrated 2-D and 3-D graphics engines
Integrated hardware motion compression engine
Integrated 230 MHz DAC
Table 5 lists the refresh rates supported by graphics subsystem.
Table 5.
Supported Graphics Refresh Rates
Resolution
Color Palette
16 colors
Available Refresh Frequencies (Hz)
640 x 480
60, 70, 72, 75, 85
60, 70, 72, 75, 85
60, 70, 72, 75, 85
60, 70, 72, 75, 85
75, 85
256 colors
64 K colors
16 M colors
256 colors
64 K colors
16 M colors
256 colors
64 K colors
16 M colors
256 colors
64 K colors
16 M colors
256 colors
64 K colors
16 M colors
256 colors
64 K colors
16 M colors
256 colors
64 K colors
16 M colors
256 colors
720 x 480
75, 85
75, 85
720 x 576
60, 75, 85
60, 75, 85
60, 75, 85
800 x 600
60, 70, 72, 75, 85
60, 70, 72, 75, 85
60, 70, 72, 75, 85
60, 70, 72, 75, 85
60, 70, 72, 75, 85
60, 70, 72, 75, 85
60, 70, 72, 75, 85
60, 70, 72, 75, 85
60, 70, 72, 75, 85
60, 70, 72, 75, 85
60, 70, 72, 75, 85
60, 70, 75, 85
60, 70, 72, 75, 85
1024 x 768
1152 x 864
1280 x 1024
1600 x 1200
For information about
Obtaining graphics software and utilities
Refer to
22
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Product Description
1.10 Audio Subsystem
The Audio Codec ’97 (AC ’97) compatible audio subsystem includes these features:
•
Split digital/analog architecture for improved signal-to-noise ratio (≥ 85 dB) measured at line
out, from any analog input, including line in, and CD-ROM
3-D stereo enhancement
•
•
Power management support for ACPI 1.0a
The audio subsystem consists of these devices:
•
•
•
Creative Sound Blaster AudioPCI 128V
Crystal Semiconductor CS4297A stereo audio codec
Audio connectors
For information about
Refer to
Obtaining audio software and utilities
Section 1.2, page 13
1.10.1 Creative Sound Blaster AudioPCI 128V
The Creative Sound Blaster AudioPCI 128V features:
•
•
•
•
Creative ES1373D digital audio controller
Interfaces to the PCI bus as a Plug and Play device
100% DOS legacy compatible
Access to main memory (through the PCI bus) for wavetable synthesis support – does not
require a separate wavetable ROM device
•
Conforms to the PC 98 and PC 99 design guides
For information about
Creative Sound Blaster AudioPCI 128V
Refer to
1.10.2 Creative ES1373D Digital Audio Controller
The Creative ES1373D digital audio controller’s features include:
•
•
•
•
•
PCI 2.1 compliant
PCI bus master for PCI audio
128-voice wavetable synthesizer
Aureal A3D† API, Sound Blaster Pro†, Roland MPU-401 MIDI, joystick compatible
Ensoniq 3D positional audio and Microsoft DirectSound† 3D support
1.10.3 Crystal Semiconductor CS4297A Analog Codec
The Crystal Semiconductor CS4297A is a fully AC ’97 compliant codec. The codec's features
include:
•
•
•
18-bit stereo full-duplex operation
Up to 48 kHz sampling rate
Connects to ES1373D digital controller using a five-wire digital interface
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
1.10.4 Audio Connectors
The audio connectors include the following:
•
•
•
Line out (back panel)
Mic in (back panel)
ATAPI CD-ROM (connects an internal ATAPI CD-ROM drive to the audio mixer)
For information about
Refer to
The back panel audio connectors
Section 2.8.1, page 39
Figure 5, page 41
Table 29, page 45
The location of the ATAPI CD-ROM connector
The signal names of the ATAPI CD-ROM connector
1.11 Hardware Monitor Component
The hardware monitor component provides low-cost instrumentation capabilities. The features of
the component include:
•
•
•
Internal ambient temperature sensing
Remote thermal diode sensing for direct monitoring of processor temperature
Power supply monitoring (+12, +5, +3.3, +2.5, VCCP) to detect levels above or below
acceptable values
•
•
SMBus interface
The hardware monitor component enables the board to be compatible with the Wired for
Management (WfM) specification.
For information about
The board’s compatibility with the WfM specification
Refer to
Table 2, page 13
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Product Description
1.12 LAN Subsystem
The Intel 82559 Fast Ethernet Wired for Management (WfM) PCI LAN subsystem provides both
10Base-T and 100Base-TX connectivity. Features include:
•
•
32-bit, 33 MHz direct bus mastering on the PCI bus
10Base-T and 100Base-TX capability using a single RJ-45 connector with connection and
activity status LEDs
•
•
IEEE 802.3u Auto-Negotiation for the fastest available connection
Jumperless configuration; the LAN subsystem is completely software-configurable
For information about
Refer to
The WfM specification
Table 2, page 13
1.12.1 Intel® 82559 PCI LAN Controller
The Intel 82559 PCI LAN controller’s features include:
•
•
•
•
CSMA/CD Protocol Engine
PCI bus interface
DMA engine for movement of commands, status, and network data across the PCI bus
Integrated physical layer interface, including:
Complete functionality necessary for the 10Base-T and 100Base-TX network interfaces;
when in 10 Mbit/sec mode, the interface drives the cable directly
A complete set of Media Independent Interface (MII) management registers for control
and status reporting
IEEE 802.3u Auto-Negotiation for automatically establishing the best operating mode
when connected to other 10Base-T or 100Base-TX devices, whether half- or full-duplex
capable
•
Integrated power management features, including support for wake on network event (from an ACPI
S3 state using the PCI bus PME# signal)
For information about
Refer to
The LAN subsystem’s PCI specification compliance
Table 2, page 13
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
1.12.2 LAN Subsystem Software
The Intel 82559 Fast Ethernet WfM PCI LAN software and drivers are available from Intel’s
World Wide Web site.
For information about
Refer to
Obtaining LAN software and drivers
Section 1.2, page 13
1.12.3 RJ-45 LAN Connector LEDs
Two LEDs are built into the RJ-45 LAN connector. Table 6 describes the LED states when the
board is powered up and the LAN subsystem is operating.
Table 6.
LAN Connector LED States
LED Color
LED State
Condition
Green
Off
10 Mbit/sec data rate is selected.
100 Mbit/sec date rate is selected.
LAN link is not established.
LAN link is established.
On
Yellow
Off
On (steady state)
On (brighter and pulsing) The computer is communicating with another computer on
the LAN.
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Product Description
1.13 Power Management Features
Power management is implemented at several levels, including:
•
•
Advanced Configuration and Power Interface (ACPI)
Hardware support:
Power connector
Wake on network event
Instantly Available technology
Wake on Ring
Resume on Ring
1.13.1 ACPI
If the board is used with an ACPI-aware operating system, the BIOS can provide ACPI support.
ACPI gives the operating system direct control over the power management and Plug and Play
functions of a computer. The use of ACPI with this board requires the support of an operating
system that provides full ACPI functionality. ACPI features include:
•
•
Plug and Play (including bus and device enumeration)
Power management control of individual devices, add-in boards (some add-in boards may
require an ACPI-aware driver), video displays, and hard disk drives
Methods for achieving less than 30-watt system operation in the Power On Suspend sleeping
state, and less than 5-watt system operation in the Suspend to RAM sleeping state
A Soft-off feature that enables the operating system to power off the computer
Support for multiple wake up events (see Table 9 on page 29)
Support for a front panel power and sleep mode switch. Table 7 lists the system states based
on how long the power switch is pressed, depending on how ACPI is configured with an
ACPI-aware operating system.
•
•
•
•
Table 7.
Effects of Pressing the Power Switch
…and the power switch is
If the system is in this state… pressed for
…the system enters this state
Power on
Off
(ACPI G2/S5 state)
(ACPI G0 state)
(ACPI G0 state)
(ACPI G1 state)
(ACPI G1 state)
Less than four seconds
Less than four seconds
More than four seconds
Less than four seconds
More than four seconds
On
Soft off/Suspend
Fail safe power off
Wake up
On
Sleep
Sleep
Power off
For information about
The board’s compliance level with ACPI
Refer to
Section 1.3, page 13
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
1.13.1.1 System States and Power States
Under ACPI, the operating system directs all system and device power state transitions. The
operating system puts devices in and out of low-power states based on user preferences and
knowledge of how devices are being used by applications. Devices that are not being used can be
turned off. The operating system uses information from applications and user settings to put the
system as a whole into a low-power state.
Table 8 lists the power states supported by the board along with the associated system power
targets. See the ACPI specification for a complete description of the various system and power
states.
Table 8.
Power States and Targeted System Power
Global States
Sleeping States
CPU States
Device States
Targeted System Power*
G0 – working
state
S0 – working
C0 – working
D0 – working
state
Full power > 30 W
G1 – sleeping
state
S1 – CPU stopped
C1 – stop
grant
D1, D2, D3 –
device
5 W < power < 30 W
specification
specific.
G1 – sleeping
state
S3 – Suspend-to-
RAM. Context
saved to RAM.
No power
No power
D3 – no power
except for wake
up logic.
Power < 5 W **
Power < 5 W **
G2/S5
S5 – Soft off.
Context not saved.
Cold boot is
D3 – no power
except for wake
up logic.
required.
G3 –
mechanical off.
No power to the
system.
No power
D3 – no power for
wake up logic,
except when
provided by
battery or external
source.
No power to the system so
that service can be
performed.
AC power is
disconnected
from the
computer.
*
Total system power is dependent on the system configuration, including add-in boards and peripherals powered by the
system chassis’ power supply.
** Dependent on the standby power consumption of wake up devices used in the system.
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Product Description
1.13.1.2 Wake Up Devices and Events
Table 9 lists the devices or specific events that can wake the computer from specific states.
Table 9.
Wake Up Devices and Events
These devices/events can wake up the computer…
…from this state
S1, S3, S5
S1, S3, S5
S1, S3
Power switch
RTC alarm
LAN
Modem
S1, S3
USB
S1, S3
PCI bus PME#
S3
1.13.1.3 Plug and Play
In addition to power management, ACPI provides controls and information so that the operating
system can facilitate Plug and Play device enumeration and configuration. ACPI is used only to
enumerate and configure devices that do not have other hardware standards for enumeration and
configuration. PCI devices on a desktop board, for example, are not enumerated by ACPI.
1.13.2 Hardware Support
CAUTION
If Wake on network event and Instantly Available technology features are used, the power supply
must be capable of providing adequate +5 V standby current. Failure to provide adequate standby
current can damage the power supply. The total amount of standby current required depends on
the wake devices supported and manufacturing options. Refer to Section 2.11.3 on page 54 for
additional information.
The board provides several hardware features that support power management, including:
•
•
•
•
•
Power connector
Wake on network event
Instantly Available technology
Wake on Ring
Resume on Ring
Wake on network event and Instantly Available technology require power from the +5 V standby
line. The sections discussing these features describe the incremental standby power requirements
for each.
Wake on Ring and Resume on Ring enable telephony devices to access the computer when it is in
a power-managed state. The method used depends on the type of telephony device (external or
internal) and the power management mode being used (ACPI).
NOTE
✏
The use of Wake on Ring and Resume on Ring technologies from an ACPI state require the support
of an operating system that provides full ACPI functionality.
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
1.13.2.1 Power Connector
When used with an ATX-compliant power supply that supports remote power on/off, the board can
turn off the system power through software control. To enable soft-off control in software,
advanced power management must be enabled in the BIOS Setup program and in the operating
system. When the system BIOS receives the correct power management command from the
operating system, the BIOS turns off power to the computer.
With soft-off enabled, if power to the computer is interrupted by a power outage or a disconnected
power cord, when power resumes, the computer returns to the power state it was in before power
was interrupted (on or off).
For information about
Refer to
The location of the power connector
The signal names of the power connector
The ATX specification
Figure 5, page 41
Table 27, page 44
Section 1.3, page 13
1.13.2.2 Fan Connectors
The board has two fan connectors. The functions of these connectors are described in Table 10.
Table 10. Fan Connector Descriptions
Connector
Chassis fan
Processor fan
Function
Provides +12 V DC for a system or chassis fan.
Provides +12 V DC for a processor fan or active fan heatsink.
For information about
Refer to
The location of the fan connectors
Figure 5, page 41
Table 22, page 42
Table 23, page 42
The signal names of the chassis fan connector
The signal names of the processor fan connector
1.13.2.3 Wake on Network Event
CAUTION
For Wake on network event, the +5 V standby line for the power supply must be capable of
providing adequate +5 V standby current. Failure to provide adequate standby current when
implementing Wake on network event can damage the power supply. Refer to Section 2.11.3 on
page 54 for additional information.
Wake on network event enables remote wakeup of the computer through a network. The LAN
subsystem, whether onboard or as a PCI bus network adapter, monitors network traffic at the
Media Independent Interface. Upon detecting a Magic Packet†, the LAN subsystem asserts a
wakeup signal that powers up the computer. The board supports Wake on network event through
the PCI bus PME# signal.
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Product Description
1.13.2.4 Instantly Available Technology
CAUTION
For Instantly Available technology, the +5 V standby line for the power supply must be capable of
providing adequate +5 V standby current. Failure to provide adequate standby current when
using this feature can damage the power supply. Refer to Section 2.11.3 on page 54 for additional
information.
Instantly Available technology enables the board to enter the ACPI S3 (Suspend-to-RAM) sleep-
state. While in the S3 sleep-state, the computer will appear to be off (the power supply is off, the
fans are off, and the power LED is amber). When signaled by a wake up device or event, the
system quickly returns to its last known wake state. Table 9 on page 29 lists the devices and
events that can wake the computer from the S3 state.
The board supports the PCI Bus Power Management Interface Specification. For information on
the versions of these specifications, see Section 1.3. Add-in boards that also support these
specifications can participate in power management and can be used to wake the computer.
1.13.2.5 Wake on Ring
NOTE
✏
Wake on Ring requires the use of a modem (external USB or internal PCI) that supports the Wake
on Ring feature.
The operation of Wake on Ring can be summarized as follows:
•
•
Wakes up the computer from the ACPI S5 state
Requires two calls to access the computer:
First call restores the computer
Second call enables access (when the appropriate software is loaded)
•
Detects incoming calls differently for external as opposed to internal modems:
For external USB modems, the USB bus is monitored for the RING_DETECT signal
For internal PCI modems, incoming calls are detected through the PCI bus PME# signal
1.13.2.6 Resume on Ring
The operation of Resume on Ring can be summarized as follows:
•
•
•
Resumes operation from the ACPI S1 state
Requires only one call to access the computer
Detects incoming call similarly for external and internal modems
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
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2 Technical Reference
What This Chapter Contains
2.1 Introduction................................................................................................................ 33
2.2 Memory Map ............................................................................................................. 33
2.3 I/O Map ..................................................................................................................... 34
2.4 DMA Channels .......................................................................................................... 35
2.5 PCI Configuration Space Map ................................................................................... 36
2.6 Interrupts ................................................................................................................... 36
2.7 PCI Interrupt Routing Map......................................................................................... 37
2.8 Connectors................................................................................................................ 38
2.9 Jumper Block............................................................................................................. 49
2.10 Mechanical Considerations........................................................................................ 51
2.11 Electrical Considerations ........................................................................................... 53
2.12 Thermal Considerations............................................................................................. 55
2.13 Reliability................................................................................................................... 56
2.14 Environmental............................................................................................................ 57
2.15 Regulatory Compliance ............................................................................................. 58
2.1 Introduction
Sections 2.2 – 2.6 contain several standalone tables. Table 11 describes the system memory map,
Table 12 shows the I/O map, Table 13 lists the DMA channels, Table 14 defines the PCI
configuration space map, and Table 15 describes the interrupts. The remaining sections in this
chapter are introduced by text found with their respective section headings.
2.2 Memory Map
Table 11. System Memory Map
Address Range (decimal) Address Range (hex)
Size
Description
Extended memory
Runtime BIOS
Reserved
1024 K – 262144 K
960 K – 1024 K
896 K – 960 K
100000 – FFFFFFF
F0000 – FFFFF
E0000 – EFFFF
C8000 – DFFFF
255 MB
64 KB
64 KB
96 KB
800 K – 896 K
Available high DOS memory (open
to PCI bus)
640 K – 800 K
639 K – 640 K
A0000 – C7FFF
9FC00 – 9FFFF
160 KB
1 KB
Video memory and BIOS
Extended BIOS data (movable by
memory manager software)
512 K – 639 K
0 K – 512 K
80000 – 9FBFF
00000 – 7FFFF
127 KB
512 K
Extended conventional memory
Conventional memory
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
2.3 I/O Map
Table 12. I/O Map
Address (hex)
0000 – 000F
0020 – 0021
0040 – 0043
0060
Size
Description
16 bytes
2 bytes
4 bytes
1 byte
DMA Controller
Programmable Interrupt Control (PIC)
System Timer
Keyboard controller byte – reset IRQ
System Speaker
0061
1 byte
0064
1 byte
Keyboard controller, CMD/STAT byte
System CMOS / Real Time Clock
System CMOS
0070 – 0071
0072 – 0073
0080 – 008F
0092
2 bytes
2 bytes
16 bytes
1 byte
DMA Controller
Fast A20 and PIC
00A0 – 00A1
00C0 – 00DF
00F0
2 bytes
32 bytes
1 byte
PIC
DMA
Numeric data processor
Secondary IDE channel
Primary IDE channel
0170 – 0177
01F0 – 01F7
02E8 – 02EF1
02F8 – 02FF1
0376
8 bytes
8 bytes
8 bytes
8 bytes
1 byte
COM4/video (8514A)
COM2
Secondary IDE channel command port
Secondary IDE channel status port
Intel 82810E – DC133 Graphics/Memory Controller Hub (GMCH)
Intel 82810E – Graphics/Memory Controller Hub (GMCH)
COM3
0377, bits 6:0
03B0 – 03BB
03C0 – 03DF
03E8 – 03EF
03F6
7 bits
12 bytes
32 byte
8 bytes
1 byte
Primary IDE channel command port
COM1
03F8 – 03FF
04D0 – 04D1
0CF8 – 0CFB2
0CF93
8 bytes
2 bytes
4 bytes
1 byte
Edge/level triggered PIC
PCI configuration address register
Turbo and reset control register
PCI configuration data register
Primary bus master IDE registers
Secondary bus master IDE registers
0CFC – 0CFF
FFA0 – FFA7
FFA8 – FFAF
4 bytes
8 bytes
8 bytes
continued
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Technical Reference
Table 12. I/O Map (continued)
Address (hex) Size
Description
96 contiguous bytes starting on a ICH (ACPI + TCO)
128-byte divisible boundary
64 contiguous bytes starting on a Onboard resource
64-byte divisible boundary
32 contiguous bytes starting on a ICH (USB)
32-byte divisible boundary
16 contiguous bytes starting on a ICH (SMBus)
16-byte divisible boundary
4096 contiguous bytes starting on Intel 82810EAA PCI Bridge
a 4096-byte divisible boundary
32 contiguous bytes starting on a Intel 82559 LAN Controller
32-byte divisible boundary
96 contiguous bytes starting on a LPC47M102 PME Status
128-byte divisible boundary
64 contiguous bytes starting on a Creative ES1373D Digital Audio Controller
64-byte divisible boundary
Notes:
1. Default, but can be changed to another address range
2. Dword access only
3. Byte access only
✏ NOTE
Some additional I/O addresses are not available due to ICH addresses aliasing. For information
about ICH addressing, refer to Intel web site at:
2.4 DMA Channels
Table 13. DMA Channels
DMA Channel Number
Data Width
8- or 16-bits
8- or 16-bits
8- or 16-bits
8- or 16-bits
System Resource
0
1
2
3
4
5
6
7
Audio
Audio
Open
Open / Audio
Reserved - cascade channel
16-bits
16-bits
16-bits
Open
Open
Open
35
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
2.5 PCI Configuration Space Map
Table 14. PCI Configuration Space Map
Bus
Device
Function
Number (hex)
Number (hex)
Number (hex)
Description
00
00
00
00
00
00
00
00
00
00
01
01
01
00
01
1E
1F
1F
1F
1F
1F
1F
1F
01
07
09
00
00
00
00
01
02
03
04
05
06
00
00
00
Memory controller of Intel 82810E component
Graphics controller of Intel 82810E component
Link to PCI bridge
PCI-to-LPC bridge
IDE controller
USB controller #1
SMBus controller
Reserved
AC ’97 audio controller
AC ’97 modem controller
Intel 82559 PCI LAN controller
PCI Audio Accelerator ES1373D
PCI bus connector
2.6 Interrupts
Table 15. Interrupts
IRQ
NMI
0
System Resource
I/O channel check
Reserved, interval timer
1
Reserved, keyboard buffer full
2
Reserved, cascade interrupt from slave PIC
COM2*
3
4
COM1*
5
User available
6
User available
7
Audio / User available *
Real-time Clock
8
9
Reserved for ICH system management bus
User available
10
11
12
13
14
15
User available
User available
Reserved, math coprocessor
Primary IDE (if present, else user available)
Secondary IDE (if present, else user available)
*
Default, but can be changed to another IRQ
36
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Technical Reference
2.7 PCI Interrupt Routing Map
This section describes interrupt sharing and how the interrupt signals are connected between the
PCI bus connector and onboard PCI devices. The PCI specification specifies how interrupts can be
shared between devices attached to the PCI bus. In most cases, the small amount of latency added
by interrupt sharing does not affect the operation or throughput of the devices. In some special
cases where maximum performance is needed from a device, a PCI device should not share an
interrupt with other PCI devices. Use the following information to avoid sharing an interrupt with
a PCI add-in card.
PCI devices are categorized as follows to specify their interrupt grouping:
•
INTA: By default, all add-in cards that require only one interrupt are in this category. For
almost all cards that require more than one interrupt, the first interrupt on the card is also
classified as INTA.
•
•
INTB: Generally, the second interrupt on add-in cards that require two or more interrupts is
classified as INTB. (This is not an absolute requirement.)
INTC and INTD: Generally, a third interrupt on add-in cards is classified as INTC and a
fourth interrupt is classified as INTD.
The ICH PCI-to-LPC bridge has four programmable interrupt request (PIRQ) input signals. Any
PCI interrupt source (either onboard or from a PCI add-in card) connects to one of these
PIRQ signals. Because there are only four signals, some PCI interrupt sources are mechanically
tied together on the board and therefore share the same interrupt. Table 16 lists the PIRQ signals
and shows how the signals are connected to the PCI bus connectors and to onboard PCI interrupt
sources.
Table 16. PCI Interrupt Routing Map
ICH PIRQ Signal Name
PCI Interrupt Source
PIRQA
PIRQB
PIRQC
PIRQD
INTA
AGP Controller
INTC
ICH Audio Controller
ICH USB Controller
Intel 82559 PCI LAN Controller
PCI Bus Connector
INTD
INTD
INTC
INTC
INTA
INTB
NOTE
✏
The ICH can connect each PIRQ line internally to one of the IRQ signals (3, 4, 5, 6, 7, 10, 11, 14,
and 15). Typically, a device that does not share a PIRQ line will have a unique interrupt.
However, in certain interrupt-constrained situations, it is possible for two or more of the PIRQ
lines to be connected to the same IRQ signal.
37
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
2.8 Connectors
CAUTION
Only the back panel I/O connectors of the board have overcurrent protection. The internal board
connectors are not overcurrent protected, and should connect only to devices inside the computer
chassis, such as fans and internal peripherals. Do not use these connectors for powering devices
external to the computer chassis. A fault in the load presented by the external devices could cause
damage to the computer, the interconnecting cable, and the external devices themselves.
This section describes the board’s connectors. The connectors can be divided into the following
groups:
•
Back panel I/O connectors (see page 39)
USB (2)
VGA
LAN
Audio line out
Mic in
•
Internal I/O connectors (see page 41)
Fans (2)
IDE (2)
Serial debug port
Power
PCI
ATAPI CD-ROM
•
External I/O connectors (see page 46)
USB ports
Front panel (Power/Sleep/Message waiting LED, power switch, hard drive activity LED,
reset switch, and infrared port)
38
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Technical Reference
2.8.1 Back Panel I/O Connectors
Figure 4 shows the location of the back panel I/O connectors.
A B
Item
C
D
E F
OM08925
Description
USB port 0
USB port 1
VGA port
LAN
A
B
C
D
E
F
(see Table 17, page 40)
(see Table 17, page 40)
(see Table 18, page 40)
(see Table 19, page 40)
Audio line out (see Table 20, page 40)
Mic in (see Table 21, page 40)
Figure 4. Back Panel I/O Connectors
NOTE
✏
The back panel audio line out connector is designed to power headphones or amplified speakers
only. Poor audio quality may occur if passive (non-amplified) speakers are connected to this
output.
39
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
Table 17. USB Connectors
Pin
1
Signal Name
+5 V (fused)
2
USBP0# / USBP1#
USBP0 / USBP1
Ground
3
4
Table 18. VGA Port Connector
Pin
1
Signal Name
Red
Pin
6
Signal Name
Ground
Pin
11
12
13
14
15
Signal Name
No connect
MONID1
2
Green
7
Ground
3
Blue
8
Ground
HSYNC
4
No connect
Ground
9
Fused VCC
Ground
VSYNC
5
10
MONID2
Table 19. LAN Connector
Pin
1
Signal Name
TX+
2
TX-
3
RX+
4
Ground
Ground
RX-
5
6
7
Ground
Ground
8
Table 20. Audio Line Out Connector
Pin
Signal Name
Audio left out
Audio right out
Ground
Tip
Ring
Sleeve
Table 21. Mic In Connector
Pin
Signal Name
Mono in
Tip
Ring
Sleeve
Mic bias voltage
Ground
40
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2.8.2 Internal I/O Connectors
Figure 5 shows the location of the internal I/O connectors.
1
H
A
1
G
2
40
39
8
2
1
1
1
B
1
9
2
50
10
20
1
11
49
D
C
F
E
OM08926
Item
A
Description
Fan 2 (chassis fan)
Reference Designator
(see Table 22, page 42) J2J1
(see Table 23, page 42) J7J1
(see Table 24, page 42) J7E1
(see Table 25, page 43) J8E1
(see Table 26, page 43) J7C1
(see Table 27, page 44) J8B1
(see Table 28, page 45) J4B1
(see Table 29, page 45) J2D1
B
Fan 1 (processor fan)
Primary IDE
Slimline IDE
Serial debug port
Power
C
D
E
F
G
H
PCI
ATAPI CD-ROM
Figure 5. Internal I/O Connectors
For information about
Refer to
The power connector
Section 1.13.2.1, page 30
Section 1.13.2.2, page 30
The functions of the fan connectors
41
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
Table 22. Chassis Fan Connector (J2J1)
Pin
1
Signal Name
Ground
2
+12 V
3
Ground
Table 23. Processor Fan Connector (J7J1)
Pin
1
Signal Name
Ground
2
+12 V
3
FAN_TACH1
Table 24. Primary IDE Connector (J7E1)
Pin
1
Signal Name
Reset IDE
Data 7
Pin
2
Signal Name
Ground
3
4
Data 8
5
Data 6
6
Data 9
7
Data 5
8
Data 10
9
Data 4
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
Data 11
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
Data 3
Data 12
Data 2
Data 13
Data 1
Data 14
Data 0
Data 15
Ground
Key
DDRQ0
Ground
I/O Write#
I/O Read#
IOCHRDY
DDACK0#
IRQ 14
Ground
Ground
P_ALE (Cable Select pullup)
Ground
Reserved
ATA_66 Detect
DAG2 (Address 2)
Chip Select 3P#
Ground
DAG1 (Address 1)
DAG0 (Address 0)
Chip Select 1P#
Activity#
42
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Table 25. Slimline IDE Connector (J8E1)
Pin
1
Signal Name
AUD_LCR_R
AUD_CDGND_R
N/C
Pin
2
Signal Name
AUD_RCD_R
AUD_CDGND_R
N/C
3
4
5
6
7
Reset IDE
Data 7
8
Ground
9
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
Data 8
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
Data 6
Data 9
Data 5
Data 10
Data 11
Data 12
Data 13
Data 14
Data 15
Key
Data 4
Data 3
Data 2
Data 1
Data 0
Ground
DDRQ1
Ground
I/O Write#
I/O Read#
IOCHRDY
DDACK1#
IRQ 15
Ground
Ground
P_ALE (Cable Select pullup)
Ground
Reserved
DAG1 (Address 1)
DAG0 (Address 0)
Chip Select 1S#
Activity#
Reserved
DAG2 (Address 2)
Chip Select 3S#
Ground
VCC
VCC
Ground
N/C
Table 26. Serial Debug Port Connector (J7C1)
Pin
1
Signal Name
Pin
2
Signal Name
DCD (Data Carrier Detect)
SIN # (Serial Data In)
SOUT # (Serial Data Out)
DTR (Data Terminal Ready)
Ground
DSR (Data Set Ready)
RTS (Request to Send)
CTS (Clear to Send)
RI (Ring Indicator)
Key
3
4
5
6
7
8
9
10
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
Table 27. Power Connector (J8B1)
Pin
1
Signal Name
+3.3 V
Pin
11
12
13
14
15
16
17
18
19
20
Signal Name
+3.3 V
2
+3.3 V
-12 V
3
Ground
Ground
4
+5 V
PS-ON# (power supply remote on/off)
5
Ground
Ground
Ground
Ground
PS_FAN_EN
+5 V
6
+5 V
7
Ground
8
PWRGD (Power Good)
+5 VSB
9
10
+12 V
+5 V
44
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Table 28. PCI Bus Connector (J4B1)
Pin
A1
A2
A3
A4
A5
A6
A7
A8
A9
Signal
Pin
Signal
Pin
Signal
AD16
Pin
Signal
AD17
Ground (TRST#)* B1
-12 V
A32
A33
A34
A35
A36
A37
A38
A39
B32
B33
B34
B35
B36
B37
B38
B39
B40
B41
B42
B43
B44
B45
B46
B47
B48
B49
B50
B51
B52
B53
B54
B55
B56
B57
B58
B59
B60
B61
B62
+12 V
B2
B3
B4
B5
B6
B7
B8
B9
Ground (TCK)*
Ground
+3.3 V
FRAME#
Ground
TRDY#
Ground
STOP#
+3.3 V
Reserved
Reserved
Ground
PAR
C/BE2#
Ground
IRDY#
+3.3 V
DEVSEL#
Ground
LOCK#
PERR#
+3.3 V
SERR#
+3.3 V
C/BE1#
AD14
+5 V (TMS)*
+5 V (TDI)*
+5 V
No connect (TDO)*
+5 V
INTA#
+5 V
INTC#
INTB#
+5 V
INTD#
Reserved
No connect (PRSNT1#)* A40
A41
B11 No connect (PRSNT2#)* A42
A10 +5 V (I/O)
A11 Reserved
A12 Ground
A13 Ground
A14 +3.3 V aux
A15 RST#
A16 +5 V (I/O)
A17 GNT#
A18 Ground
A19 PME#
A20 AD30
B10 Reserved
B12 Ground
B13 Ground
B14 Reserved
B15 Ground
B16 CLK
A43
A44
A45
A46
A47
A48
A49
A50
A51
A52
A53
A54
A55
A56
A57
A58
A59
A60
A61
A62
AD15
+3.3 V
AD13
Ground
AD12
AD11
B17 Ground
B18 REQ#
B19 +5 V (I/O)
B20 AD31
B21 AD29
B22 Ground
B23 AD27
B24 AD25
B25 +3.3 V
B26 C/BE3#
B27 AD23
B28 Ground
B29 AD21
B30 AD19
B31 +3.3 V
Ground
AD09
AD10
Ground
Key
Key
Key
Key
A21 +3.3 V
A22 AD28
C/BE0#
+3.3 V
AD06
AD08
AD07
A23 AD26
+3.3 V
AD05
A24 Ground
A25 AD24
AD04
Ground
AD02
AD03
A26 IDSEL
A27 +3.3 V
A28 AD22
Ground
AD01
AD00
+5 V (I/O)
REQ64C#
+5 V
+5 V (I/O)
ACK64C#
+5 V
A29 AD20
A30 Ground
A31 AD18
+5 V
+5 V
*
These signals (in parentheses) are optional in the PCI specification and are not currently implemented.
Table 29. ATAPI CD-ROM Connector (J2D1)
Pin
1
Signal Name
Left audio input from CD-ROM
CD audio differential ground
CD audio differential ground
Right audio input from CD-ROM
2
3
4
45
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
2.8.3 External I/O Connectors
Figure 6 shows the locations of the external I/O connectors.
2
1
7
2
1
16
15
10
A
B
OM08927
Reference
Designator
Item
A
Description
USB ports (see Table 30, page 47)
Front panel (see Table 31, page 47)
J7A1
J8C1
B
Figure 6. External I/O Connectors
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Technical Reference
2.8.3.1 USB Port Connector
Table 30 lists the signal names of the USB port connector.
Table 30. USB Port Connector (J7A1)
Pin
1
Signal Name
USB_PWR
USB_P2RL#
USB_P2RL
Ground
Pin
2
Signal Name
USB_PWR
USB_P3RL#
USB_P3RL
Ground
3
4
5
6
7
8
9
Key (no pin)
10
USB_FP_OC
2.8.3.2 Front Panel Connector
Table 31 lists the signal names of the front panel connector.
Table 31. Front Panel Connector (J8C1)
Pin Signal
In/Out Description
Pin Signal
In/Out Description
Hard Drive Activity LED
Power /Sleep / Message Waiting LED
1
3
HD_PWR
HD_LED#
Out
Out
Hard disk LED pull-up
(330 Ω) to +5 V
2
4
HDR_BLNK_GRN Out
HDR_BLNK_YEL Out
Front panel
green LED
Hard disk active LED
Front panel
yellow LED
Reset Switch
Power Switch
5
GND
Ground
6
SW_ON#
In
Front panel
power switch
7
FP_RESET# In
Front panel Reset
button
8
GND
Ground
Infrared Port
+5 V
Miscellaneous
9
Out
In
IR Power
10
12
14
16
N/C
In
Not connected
Ground
11 IRRX
13 GND
15 IRTX
IrDA serial input
Ground
GND
(Pin removed)
+5 V
Not connected
Power
Out
IrDA serial output
Out
47
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
2.8.3.2.1 Power / Sleep / Message Waiting LED Connector
Pins 2 and 4 can be connected to a single- or dual-colored LED. Table 32 lists the possible states
for a single-colored LED. Table 33 shows the possible states for a dual-colored LED.
Table 32. States for a Single-colored Power LED
Description
ACPI State
S1, S3, S5
S0
LED State
Off
Not running
Steady Green
Blinking Green
Running
Running/message waiting
S0
Table 33. States for a Dual-colored Power LED
LED State
Description
ACPI State
S5
Off
Power off
Steady Green
Blinking Green
Steady Yellow
Blinking Yellow
Running
S0
Running/message waiting
Sleeping
S0
S1, S3
S1, S3
Sleeping/message waiting
✏ NOTE
To use the message waiting function, ACPI must be enabled in the operating system and a
message-capturing application must be invoked.
2.8.3.2.2 Power Switch Connector
Pins 6 and 8 can be connected to a front panel power switch. The switch must pull pin 6 to ground
for at least 50 ms to signal the power supply to switch on or off. (The time requirement is due to
internal debounce circuitry on the board.) At least two seconds must pass before the power supply
will recognize another on/off signal.
2.8.3.2.3 Hard Drive Activity LED Connector
Pins 1 and 3 can be connected to an LED to provide a visual indicator that data is being read from
or written to a hard drive. For the LED to function properly, an IDE drive must be connected to
the onboard IDE interface.
2.8.3.2.4 Reset Switch Connector
Pins 5 and 7 can be connected to a momentary SPST type switch that is normally open. When the
switch is closed, the board resets and runs the POST.
48
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Technical Reference
2.9 Jumper Block
CAUTION
Do not move jumpers with the power on. Always turn off the power and unplug the power cord
from the computer before changing a jumper setting. Otherwise, damage to the board could occur.
Figure 7 shows the location of the BIOS Setup jumper block. This 3-pin jumper block determines
the BIOS Setup program’s mode. Table 34 describes the jumper settings for the three modes:
normal, configure, and recovery.
3
1
J8F1
OM08928
Figure 7. Location of the Jumper Block
49
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
Table 34. BIOS Setup Configuration Jumper Settings (J8F1)
Function/Mode
Jumper Setting
Configuration
Normal
The BIOS uses current configuration information and passwords
for booting.
1
1
1
3
3
3
1-2
Configure
Recovery
After the POST runs, Setup runs automatically. The maintenance
menu is displayed.
2-3
The BIOS attempts to recover the BIOS configuration. Bootable
recovery media is required.
None
For information about
How to access the BIOS Setup program
Refer to
Section 4.1, page 71
The maintenance menu of the BIOS Setup program
BIOS recovery
Section 4.2, page 72
Section 3.6, page 66
50
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2.10 Mechanical Considerations
2.10.1 FlexATX Form Factor
The board is designed to fit into a FlexATX form-factor chassis. The board can also be installed in
a microATX-form-factor chassis. Figure 8 illustrates the mechanical form factor for the board.
Dimensions are given in inches [millimeters]. The outer dimensions are 9.0 inches by 7.5 inches
(228.6 millimeters by 190.5 millimeters). Location of the I/O connectors and mounting holes are
in compliance with the FlexATX addendum of the microATX specification (see Section 1.3).
6.50[165.10]
6.10[154.94]
5.20[132.08]
0.00
1.00[25.40]
0.75[19.05]
8.25[209.55]
8.00[203.20]
1.80[45.72]
.0
OM08929
Figure 8. Board Dimensions
51
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
2.10.2 I/O Shield
The back panel I/O shield for the board must meet specific dimension and material requirements.
Systems based on this board need the back panel I/O shield to pass certification testing. Figure 9
shows the critical dimensions of the I/O shield. Dimensions are given in inches [millimeters]. For
dimensions given to two decimal places, the tolerance is ±0.02 inches (±5.08 millimeters). The
figure indicates the position of each cutout. Additional design considerations for I/O shields
relative to chassis requirements are described in the ATX specification. See Section 1.3 for
information about the ATX specification.
0.33 Dia(2)
[8.50]
0.00
0.47[12.03]
0.46[11.80]
0.68
[17.32]
0.66[16.86]
.0
OM08930
Figure 9. I/O Shield Dimensions
52
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Technical Reference
2.11 Electrical Considerations
2.11.1 Add-in Board Considerations
The board is designed to provide 2 A (average) of +5 V current for an add-in board in the PCI slot.
2.11.2 Power Consumption
Table 35 lists voltage and current specifications for a computer that contains the board and the
following:
•
•
•
•
550E MHz Intel Pentium III processor with a 256 KB cache
256 MB SDRAM
6.2 GB IDE hard disk drive
Toshiba Mobile CD-ROM drive
This information is provided only as a guide for calculating approximate power usage with
additional resources added.
Values for the Windows† 98 desktop mode are measured at 640 x 480 x 256 colors and 60 Hz
refresh rate. AC watts are measured with a typical 145 W power supply, nominal input voltage
and frequency, with true RMS wattmeter at the line input.
Table 35. Power Usage
DC Amps at:
Mode
AC Watts
+3.3 V
+5 V
+12 V
-12 V
+5 VSB
Windows 98 ACPI S0
46 W
1.90 A
2.23 A
0.2 A
-0.02 A
0.17 A
Windows 98 ACPI S1
Windows 98 ACPI S3
Windows 98 ACPI S5
22 W
1 W
1.37 A
0.0 A
0.0 A
0.38 A
0.0 A
0.0 A
0.2 A
0.0 A
0.0 A
-0.02 A
0.0 A
0.143 A
0.13 A
0.11 A
1 W
0.0 A
53
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
2.11.3 Power Supply Considerations
System integrators should refer to the power usage values listed in Table 35 when selecting a
power supply for use with this board. The power supply must comply with the following
recommendations found in the indicated sections of the ATX form factor specification
(see Table 2 on page 13).
•
•
•
•
The potential relation between +3.3 VDC and +5 VDC power rails (Section 4.2)
The current capability of the +5 VSB line (Section 4.2.1.2)
All timing parameters (Section 4.2.1.3)
All voltage tolerances (Section 4.2.2)
2.11.4 Fan Power Requirements
Table 36 lists the maximum DC voltage and current requirements for the chassis fan when the
board is in sleep mode or normal operating mode. Power consumption is independent of the
operating system used and other variables.
Table 36.
Chassis Fan (J3A2) DC Power Requirements
Mode
Voltage
Maximum Current (Amps)
Normal (S0)
Sleep (S1)
Sleep (S3)
+ 12 VDC
+ 12 VDC
+ 0 VDC
250 mA
250 mA
0 mA
For information about
Refer to
The location of the chassis fan connector
The signal names of the chassis fan connector
Figure 5, page 41
Table 23, page 42
54
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2.12 Thermal Considerations
CAUTION
An ambient temperature that exceeds the board’s maximum operating temperature by 5 C to 10 oC
could cause components to exceed their maximum case temperature and malfunction. For
information about the maximum operating temperature, see the environmental specifications in
Section 2.14.
o
Figure 10 shows the localized high-temperature zones.
A
B
C D
E
OM08931
A
B
C
D
E
Creative ES1373D
Intel 82801AA ICH
Intel 82810E DC-133 GMCH
Processor
Processor voltage regulator area
Figure 10. High Temperature Zones
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Table 37 provides maximum component case temperatures for board components that could be
sensitive to thermal changes. Case temperatures could be affected by the operating temperature,
current load, or operating frequency. Maximum case temperatures are important when considering
proper airflow to cool the board.
Table 37. Thermal Considerations for Components
Component
Maximum Case Temperature
Intel Celeron Processor
366 MHz 85 °C
400 MHz 85 °C
433 MHz 85 °C
466 MHz 70 °C
500 MHz 70 °C
533 MHz 70 °C
Intel Pentium III Processor
500E MHz 85 °C
550E MHz 85 °C
600E MHz 85 °C
600EB MHz 85 °C
Intel 82810E DC-133 GMCH
70 °C
100 °C
70 °C
Intel 82801AA ICH
Creative ES1373D
CAUTION
o
The voltage regulator area can reach a temperature of up to 85 C in an open chassis. Ensure that
there is proper airflow to this area of the board. Failure to do so may result in damage to the
voltage regulator circuit. System integrators should ensure that proper airflow is maintained in
the voltage regulator circuit (item E in Figure 10). Components in this area could be damaged
without adequate airflow.
2.13 Reliability
The mean time between failures (MTBF) prediction is calculated using component and
subassembly random failure rates. The calculation is based on the Bellcore Reliability Prediction
Procedure, TR-NWT-000332, Issue 4, September 1991. The MTBF prediction is used to estimate
repair rates and spare parts requirements.
The Mean Time Between Failures (MTBF) data is calculated from predicted data at 55 ºC.
Board MTBF: 330,526 hours
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Technical Reference
2.14 Environmental
Table 38 lists the environmental specifications for the board.
Table 38. Board Environmental Specifications
Parameter
Specification
Temperature
Non-Operating
Operating
Shock
-40 °C to +70 °C
0 °C to +55 °C
Unpackaged
30 g trapezoidal waveform
Velocity change of 170 inches/second
Half sine 2 millisecond
Packaged
Product Weight (pounds)
Free Fall (inches)
Velocity Change (inches/sec)
<20
36
30
24
18
167
152
136
118
21-40
41-80
81-100
Vibration
Unpackaged
5 Hz to 20 Hz : 0.01 g² Hz sloping up to 0.02 g² Hz
20 Hz to 500 Hz : 0.02 g² Hz (flat)
Packaged
10 Hz to 40 Hz : 0.015 g² Hz (flat)
40 Hz to 500 Hz : 0.015 g² Hz sloping down to 0.00015 g² Hz
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2.15 Regulatory Compliance
This section describes the board’s compliance with safety and EMC regulations.
2.15.1 Safety Regulations
Table 39 lists the safety regulations the board complies with when it is correctly installed in a
compatible host system.
Table 39. Safety Regulations
Regulation
Title
UL 1950/CSA950, 3rd edition,
Dated 07-28-95
Bi-National Standard for Safety of Information Technology Equipment
including Electrical Business Equipment. (USA and Canada)
EN 60950, 2nd Edition, 1992 (with The Standard for Safety of Information Technology Equipment including
Amendments 1, 2, 3, and 4)
Electrical Business Equipment. (European Community)
IEC 950, 2nd edition, 1991 (with
Amendments 1, 2, 3, and 4)
The Standard for Safety of Information Technology Equipment including
Electrical Business Equipment. (International)
EMKO-TSE (74-SEC) 207/94
Summary of Nordic deviations to EN 60950. (Norway, Sweden,
Denmark, and Finland)
2.15.2 EMC Regulations
Table 40 lists the EMC regulations the board complies with when it is correctly installed in a
compatible host system.
Table 40. EMC Regulations
Regulation
Title
FCC Class B
Title 47 of the Code of Federal Regulations, Parts 2 and 15, Subpart B,
pertaining to unintentional radiators. (USA)
CISPR 22, 2nd Edition, 1993
(Class B)
Limits and methods of measurement of Radio Interference
Characteristics of Information Technology Equipment. (International)
VCCI Class B (ITE)
Implementation Regulations for Voluntary Control of Radio Interference
by Data Processing Equipment and Electronic Office Machines.
(Japan)
EN55022 (1994) (Class B)
EN50082-1 (1992)
ICES-003 (1997)
AS/NZ 3548
Limits and methods of measurement of Radio Interference
Characteristics of Information Technology Equipment. (Europe)
Generic Immunity Standard; Currently compliance is determined via
testing to IEC 801-2, -3, and -4. (Europe)
Interference-Causing Equipment Standard, Digital Apparatus, Class B
(Including CRC c.1374). (Canada)
Australian Communications Authority (ACA), Standard for
Electromagnetic Compatibility.
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Technical Reference
2.15.3 Certification Markings
This printed circuit assembly has the following product certification markings:
•
UL Joint Recognition Mark: Consists of small c followed by a stylized backward UR and
followed by a small US (Component side)
•
Manufacturer’s recognition mark: Consists of a unique UL recognized manufacturer’s logo,
along with a flammability rating (94V-0) (Solder side)
•
•
•
UL File Number for desktop boards: E139761 (Component side)
PB Part Number: Intel bare circuit board part number (Solder side) 746506-003
Battery “+ Side Up” marking: located on the component side of the board in close proximity
to the battery holder
•
•
FCC Logo/Declaration: (Solder side)
ACA (C-Tick) mark: Consists of a unique letter C, with a tick mark; followed by N-232.
Located on the component side of the board and on the shipping container
CE Mark: (Component side) The CE mark should also be on the shipping container
•
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3 Overview of BIOS Features
What This Chapter Contains
3.1 Introduction................................................................................................................ 61
3.2 BIOS Flash Memory Organization ............................................................................. 62
3.3 Resource Configuration............................................................................................. 62
3.4 System Management BIOS (SMBIOS)...................................................................... 64
3.5 BIOS Upgrades ......................................................................................................... 65
3.6 Recovering BIOS Data .............................................................................................. 66
3.7 Boot Options.............................................................................................................. 67
3.8 USB Legacy Support ................................................................................................. 68
3.9 BIOS Security Features............................................................................................. 69
3.1 Introduction
The board uses an Intel/AMI BIOS, which is stored in flash memory and can be upgraded using a
disk-based program. In addition to the BIOS, the flash memory contains the BIOS Setup program,
POST, the PCI auto-configuration utility, and Plug and Play support.
This board supports system BIOS shadowing, allowing the BIOS to execute from 64-bit onboard
write-protected DRAM.
The BIOS displays a message during POST identifying the type of BIOS and a revision code. The
initial production BIOS is identified as MO81010A.86A.
For information about
Refer to
The board’s compliance level with Plug and Play
Table 2, page 13
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3.2 BIOS Flash Memory Organization
The Intel 82802AB Firmware Hub (FWH) includes a 4 Mbit (512 KB) symmetrical flash memory
device. Internally, the device is grouped into eight 64-KB blocks that are individually erasable,
lockable, and unlockable. Figure 11 shows the organization of the flash memory.
The last two 8 KB blocks of the fault tolerance area are the parameter blocks. These blocks
contain data such as BIOS updates, vital product data (VPD), logo, System Management BIOS
(SMBIOS) interface, and extended system configuration data (ESCD) information. The backup
block contains a copy of the fault tolerance block.
080000
07FFFF
64 KB Block
64 KB Block
64 KB Block
64 KB Block
64 KB Block
64 KB Block
64 KB Block
64 KB Block
7
6
5
4
3
2
1
0
Boot Block
070000
06FFFF
060000
05FFFF
050000
04FFFF
040000
03FFFF
030000
02FFFF
020000
01FFFF
010000
00FFFF
000000
Main System BIOS
8 KB - Parameter Block 2
8 KB - Parameter Block 1
48 KB - Reserved
Fault Tolerance
Backup
OM08376
Figure 11. Memory Map of the Flash Memory Device
3.3 Resource Configuration
3.3.1 PCI Autoconfiguration
The BIOS can automatically configure PCI devices. PCI devices may be onboard or add-in cards.
Autoconfiguration lets a user insert or remove PCI cards without having to configure the system.
When a user turns on the system after adding a PCI card, the BIOS automatically configures
interrupts, the I/O space, and other system resources.
PCI devices can share an interrupt. Autoconfiguration information is stored in ESCD format.
For information about
Refer to
The board’s compliance level with Plug and Play
Table 2, page 13
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Overview of BIOS Features
3.3.2 PCI IDE Support
If you select Auto in the BIOS Setup program, the BIOS automatically sets up the two
PCI IDE connectors with independent I/O channel support. The primary IDE interface supports
hard drives up to ATA/66 and recognizes any ATAPI devices, including CD-ROM drives, tape
drives, and Ultra DMA drives. The secondary IDE interface supports to ATA/33. The BIOS
determines the capabilities of each drive and configures them to optimize capacity and
performance. To take advantage of the high capacities typically available today, hard drives are
automatically configured for Logical Block Addressing (LBA) and to PIO Mode 3 or 4, depending
on the capability of the drive. You can override the auto-configuration options by specifying
manual configuration in the BIOS Setup program.
To use ATA-66 features the following items are required:
•
•
•
An ATA-66 peripheral device
An ATA-66 compatible cable
ATA-66 operating system device drivers
For information about
Refer to
The supported version of ATAPI
Table 2, page 13
NOTE
✏
Do not connect an ATA device as a slave on the same IDE cable as an ATAPI master device. For
example, do not connect an ATA hard drive as a slave to an ATAPI CD-ROM drive.
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3.4 System Management BIOS (SMBIOS)
SMBIOS is a Desktop Management Interface (DMI) compliant method for managing computers in
a managed network.
The main component of SMBIOS is the management information format (MIF) database, which
contains information about the computing system and its components. Using SMBIOS, a system
administrator can obtain the system types, capabilities, operational status, and installation dates for
system components. The MIF database defines the data and provides the method for accessing this
information. The BIOS enables applications such as Intel® LANDesk® Client Manager to use
SMBIOS. The BIOS stores and reports the following SMBIOS information:
•
•
•
•
BIOS data, such as the BIOS revision level
Fixed-system data, such as peripherals, serial numbers, and asset tags
Resource data, such as memory size, cache size, and processor speed
Dynamic data, such as event detection and error logging
Non-Plug and Play operating systems, such as Windows NT†, require an additional interface for
obtaining the SMBIOS information. The BIOS supports an SMBIOS table interface for such
operating systems. Using this support, an SMBIOS service-level application running on a non-
Plug and Play operating system can obtain the SMBIOS information.
For information about
Refer to
The board’s compliance level with SMBIOS
Section 1.3, page 13
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Overview of BIOS Features
3.5 BIOS Upgrades
The BIOS can be upgraded using the Intel® Flash Memory Update utility that is available from
Intel. This utility supports the following BIOS maintenance functions:
•
•
•
Upgrading the flash BIOS from bootable recovery media
Changing the language section of the BIOS
Verifying that the upgrade BIOS matches the target system to prevent accidentally installing
an incompatible BIOS
•
Updating the BIOS boot block
BIOS upgrades and the Intel Flash Memory Update utility are available from Intel through the
Intel World Wide Web site.
NOTE
✏
Please review the instructions distributed with the upgrade utility before attempting a BIOS
upgrade.
For information about
Refer to
The Intel World Wide Web site
Section 1.2, page 13
3.5.1 Language Support
The BIOS Setup program and help messages are supported in five languages: US English,
German, Italian, French, and Spanish. The default language is US English, which is present unless
another language is selected in the BIOS Setup program.
3.5.2 Custom Splash Screen
During POST, an Intel splash screen is displayed by default. This splash screen can be replaced
with a custom splash screen. A utility is available from Intel to assist with creating a custom
splash screen. The custom splash screen can be programmed into the flash memory using the
BIOS upgrade utility. Information about this capability is available on the Intel Support World
Wide Web site.
For information about
Refer to
The Intel World Wide Web site
Section 1.2, page 13
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3.6 Recovering BIOS Data
Some types of failure can destroy the BIOS. For example, the data can be lost if a power outage
occurs while the BIOS is being upgraded in flash memory. The BIOS can be recovered from
either a 1.44 MB diskette (for recovery from an LS-120 diskette drive configured as an ATAPI
removable IDE device) or from a CD-ROM (for use in an ATAPI CD-ROM drive) using the BIOS
recovery mode. When recovering the BIOS, be aware of the following:
•
•
Recovery requires the use of bootable media in a bootable device.
Because of the small amount of code available in the nonerasable boot block area, there is no
video support. You can only monitor this procedure by listening to the speaker or looking at
the recovery drive LED.
•
•
•
Two beeps indicate the beginning of the BIOS recovery process.
Two beeps and the end of activity in the recovery drive indicate successful BIOS recovery.
A series of continuous beeps indicates a failed BIOS recovery.
BIOS recovery media can be either a 1.44 MB diskette or a CD-ROM. The recovery media must
be bootable and it must contain the BIOS update files copied to it. BIOS upgrades and the Intel
Flash Memory Upgrade utility are available from Intel Customer Support through the Intel World
Wide Web site.
NOTE
✏
✏
BIOS recovery cannot be accomplished using non-SPD DIMMs. SPD data structure is required
for the recovery process.
NOTE
If the computer is configured to boot from an LS-120 diskette (in the Boot menu), the BIOS
recovery diskette must be a standard 1.44 MB diskette not a 120 MB diskette.
For information about
Refer to
The BIOS recovery mode
Section 2.9, page 49
Section 4.7, page 85
Section 1.2, page 13
The Boot menu in the BIOS Setup program
Contacting Intel customer support
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Overview of BIOS Features
3.7 Boot Options
In the BIOS Setup program, the user can choose to boot from an ATAPI removable media device,
hard drives, CD-ROM, or the network. Boot devices are defined in priority order. The default
setting is for the CD-ROM drive to be the primary boot device and the hard drive to be the
secondary boot device.
3.7.1 CD-ROM and Network Boot
Booting from CD-ROM is supported in compliance to the El Torito bootable CD-ROM format
specification. The network can also be selected as a boot device. This selection allows booting
from a network add-in card with a remote boot ROM installed.
For information about
Refer to
The El Torito specification
Section 1.3, page 13
3.7.2 Booting Without Attached Devices
For use in embedded applications, the BIOS has been designed so that after passing the POST, the
operating system loader is invoked even if the keyboard and mouse are not connected.
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3.8 USB Legacy Support
USB legacy support enables USB devices such as keyboards, mice, and hubs to be used even when
no operating system USB drivers are in place. By default, USB legacy support is set to Auto.
USB legacy support is used in accessing the BIOS Setup program and installing an operating
system that supports USB.
This sequence describes how USB legacy support operates in the default (auto) mode.
1. When you power up the computer, USB legacy support is disabled.
2. POST begins.
3. USB legacy support is temporarily enabled by the BIOS. This allows you to use a
USB keyboard to enter the BIOS Setup program or the maintenance mode.
4. POST completes and disables USB legacy support (unless it was set to Enabled while in the
BIOS Setup program. Or if set to Auto while in the BIOS Setup program and a USB keyboard
or mouse is connected, then USB Legacy support will be enabled).
5. The operating system loads. While the operating system is loading, USB keyboards and mice
are not recognized (unless USB legacy support was set to Enabled while in the BIOS Setup
program, or if USB legacy support was set to Auto while in the BIOS Setup program and a
USB keyboard or mouse is connected). After the operating system loads the USB drivers, the
USB devices are recognized by the operating system.
To install an operating system that supports USB, enable USB Legacy support or set it to Auto in
the BIOS Setup program and follow the operating system’s installation instructions. Once the
operating system is installed and the USB drivers have been configured, USB legacy support is no
longer used. USB Legacy support can be left enabled or set to auto in the BIOS Setup program if
needed.
Notes on using USB legacy support:
•
Do not use USB devices with an operating system that does not support USB. USB legacy is
not intended to support the use of USB devices in a non-USB aware operating system.
USB legacy support is for keyboards, mice, and hubs only. Other USB devices are not
supported.
•
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Overview of BIOS Features
3.9 BIOS Security Features
The BIOS includes security features that restrict access to the BIOS Setup program and who can
boot the computer. A supervisor password and a user password can be set for the BIOS Setup
program and for booting the computer, with the following restrictions:
•
•
•
•
The supervisor password gives unrestricted access to view and change all the Setup options in
the BIOS Setup program. This is supervisor mode.
The user password gives restricted access to view and change Setup options in the BIOS Setup
program. This is user mode.
If only the supervisor password is set, pressing the <Enter> key at the password prompt of the
BIOS Setup program allows the user restricted access to Setup.
If both the supervisor and user passwords are set, users can enter either the supervisor
password or the user password to access Setup. Users have access to Setup respective to
which password is entered.
•
Setting the user password restricts who can boot the computer. The password prompt will be
displayed before the computer is booted. If only the supervisor password is set, the computer
boots without asking for a password. If both passwords are set, the user can enter either
password to boot the computer.
Table 41 shows the effects of setting the supervisor password and user password. This table is for
reference only and is not displayed on the screen.
Table 41. Supervisor and User Password Functions
Supervisor
Password Set Mode
Password to
Enter Setup
Password
During Boot
User Mode
Can change all Can change all None
options * options *
Can change all Can change a Supervisor Password
Setup Options
Neither
None
None
Supervisor
only
Supervisor
None
options
limited number
of options
User only
N/A
Can change all Enter Password
User
User
options
Clear User Password
Supervisor
and user set
Can change all Can change a Supervisor Password
Supervisor or
user
Supervisor or
user
options
limited number Enter Password
of options
*
If no password is set, any user can change all Setup options.
For information about
Refer to
Setting user and supervisor passwords
Section 4.4.5, page 82
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4 BIOS Setup Program
What This Chapter Contains
4.1 Introduction................................................................................................................ 71
4.2 Maintenance Menu.................................................................................................... 72
4.3 Main Menu................................................................................................................. 74
4.4 Advanced Menu......................................................................................................... 75
4.5 Security Menu............................................................................................................ 83
4.6 Power Menu .............................................................................................................. 84
4.7 Boot Menu................................................................................................................. 85
4.8 Exit Menu .................................................................................................................. 87
4.1 Introduction
The BIOS Setup program can be used to view and change the BIOS settings for the computer. The
BIOS Setup program is accessed by pressing the <F2> key after the Power-On Self-Test (POST)
memory test begins and before the operating system boot begins. The menu bar is shown below.
Maintenance Main
Advanced Security Power
Boot
Exit
Table 42 lists the BIOS Setup program menu functions.
Table 42. BIOS Setup Program Menu Functions
Maintenance
Main
Advanced
Security
Power
Boot
Exit
Clears
passwords and
BIS credentials, hardware
Allocates
resources for advanced
features
Configures
Sets
passwords
Configures
power
Selects boot Saves or
options and discards
and security management power supply changes to
enables
components available
through the
features
features
controls
Setup
program
options
extended
configuration
modes
chipset
NOTE
✏
✏
The Setup screens described in this chapter apply to boards with BIOS identifier MO81010A.86A.
Boards with other BIOS identifiers might have differences in some of the Setup screens.
NOTE
In this chapter, all examples of the BIOS Setup Program menu bar include the maintenance menu;
however, the maintenance menu is displayed only when the board is in configuration mode.
Section 2.9 on page 49 tells how to put the board in configuration mode.
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Table 43 lists the function keys available for menu screens.
Table 43. BIOS Setup Program Function Keys
BIOS Setup Program Function Key Description
<←> or <→>
<↑> or <↓>
<Tab>
Selects a different menu screen
Selects an item
Selects a field
<Enter>
<F9>
Executes command or selects a submenu
Load the default configuration values for the current menu
Save the current values and exits the BIOS Setup program
Exits the menu
<F10>
<Esc>
4.2 Maintenance Menu
To access this menu, select Maintenance on the menu bar at the top of the screen.
Main Advanced Security Power Boot
Extended Configuration
Exit
Maintenance
The menu shown in Table 44 is for clearing the Setup passwords and the Wired for Management
Boot Integrity Service credentials, and for changing extended configuration memory settings.
Setup only displays this menu in configuration mode. See Section 2.9 on page 49 for configuration
mode setting information.
Table 44. Maintenance Menu
Feature
Options
Description
4Clear All Passwords
Confirm: Yes/No
Selecting Yes clears the user and supervisor
passwords.
4Clear BIS Credentials
(Note)
Confirm: Yes/No
Selecting Yes clears the WfM BIS (Boot Integrity
Service) credentials.
4Extended Configuration (See Extended
Configuration Submenu)
Selecting User-Defined allows setting system
control and video memory cache modes.
CPU Information:
CPU Microcode Update
Revision
No options
Displays CPU’s Microcode Update Revision.
Displays CPU’s Stepping Signature.
CPU Stepping Signature
No options
Note: For information about the BIS, refer to the Intel web site at:
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BIOS Setup Program
4.2.1 Extended Configuration Submenu
To access this submenu, select Maintenance on the menu bar,
then Extended Configuration.
Main
Maintenance
Extended Configuration
Advanced Security
Power
Boot
Exit
The submenu represented by Table 45 is for setting system control and video memory cache mode.
This submenu becomes available when User-Defined is selected under Extended Configuration.
Table 45. Extended Configuration Submenu
Feature
Options
Description
Extended Configuration
• Default
Selecting user-defined allows you to select Default or
User-Defined. Selecting User-Defined allows you to
configure the items listed under Memory Control below.
(default)
• User-Defined
Note: If User-Defined is selected, the status will be displayed
in the Advanced Menu as: “Extended Configuration: Used.”
Memory Control:
SDRAM Auto
Configuration
• Auto (default) Sets extended memory configuration options to auto or
• User-Defined
user-defined.
CAS# Latency
• 3
• 2
Selects the number of clock cycles required to address a
column in memory.
• Auto (default)
SDRAM RAS# to
CAS# delay
• 3
• 2
Selects the number of clock cycles between addressing a
row and addressing a column.
• Auto (default)
• 3
• 2
SDRAM RAS#
Precharge
Selects the length of time required before accessing a new
row.
• Auto (default)
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4.3 Main Menu
To access this menu, select Main on the menu bar at the top of the screen.
Maintenance
Advanced Security
Power
Boot
Exit
Main
Table 46 describes the Main menu. This menu reports processor and memory information and is
for configuring the system date and system time.
Table 46. Main Menu
Feature
Options
Description
BIOS Version
Processor Type
Processor Speed
No options
No options
No options
No options
Displays the version of the BIOS.
Displays processor type.
Displays processor speed.
Displays the host bus frequency.
System Bus
Frequency
Cache RAM
Total Memory
Memory Bank 0
Language
No options
Displays the size of second-level cache.
Displays the total amount of RAM on the board.
Displays type of DIMM installed.
No options
No options
English
Displays the current language.
Processor Serial
Number
• Disabled (default)
• Enabled
When enabled, displays the processor’s serial number.
(Not supported by all processor types and speeds.)
System Time
Hour, minute, and
second
Specifies the current time.
System Date
Day of the week,
Specifies the current date.
month, day, and year
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BIOS Setup Program
4.4 Advanced Menu
To access this menu, select Advanced on the menu bar at the top of the screen.
Maintenance Main Security Power Boot
Boot Configuration
Exit
Advanced
Peripheral Configuration
IDE Configuration
Event Log Configuration
Video Configuration
Table 47 describes the Advanced menu. This menu is used for setting advanced features that are
available through the chipset.
Table 47. Advanced Menu
Feature
Options
Description
Extended Configuration
No options
Indicates the setting of the Extended Configuration submenu
(from the Maintenance Menu)
Used indicates that the Extended Configuration submenu is
being used.
Not Used (the default) indicates that the Extended
Configuration submenu is not being used.
4Boot Configuration
No options
Configures Plug and Play and the Numlock key, and resets
configuration data. When selected, displays the Boot
Settings Configuration submenu.
4Peripheral Configuration No options
Configures peripheral ports and devices. When selected,
displays the Peripheral Configuration submenu.
4IDE Configuration
No options
Specifies type of connected IDE device.
4Event Log Configuration No options
Configures Event Logging. When selected, displays the
Event Log Configuration submenu.
4Video Configuration
No options
Specifies the primary video adapter.
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4.4.1 Boot Configuration Submenu
To access this submenu, select Advanced on the menu bar,
then Boot Configuration.
Maintenance
Main
Security
Advanced
Boot Configuration
Power
Boot
Exit
Peripheral Configuration
IDE Configuration
Event Log Configuration
Video Configuration
The submenu represented by Table 48 is for setting Plug and Play options, resetting configuration
data, and the power-on state of the Numlock key.
Table 48. Boot Configuration Submenu
Feature
Options
Description
Plug & Play O/S
• No (default)
• Yes
Specifies if a Plug and Play operating system is being used.
No lets the BIOS configure all devices.
Yes lets the operating system configure Plug and Play
devices. Not required with Plug and Play operating systems.
Reset Config Data
Numlock
• No (default)
• Yes
Clears the BIOS configuration data on the next boot.
• Off
• On (default)
Specifies the power on state of the Numlock feature on the
numeric keypad of the keyboard.
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4.4.2 Peripheral Configuration Submenu
To access this submenu, select Advanced on the menu bar,
then Peripheral Configuration.
Maintenance
Main
Security
Advanced
Boot Configuration
Power
Boot
Exit
Peripheral Configuration
IDE Configuration
Event Log Configuration
Video Configuration
The submenu represented in Table 49 is used for enabling the onboard serial port, audio and LAN
devices, and legacy USB support.
Table 49. Peripheral Configuration Submenu
Feature
Options
Description
Serial Port A
• Disabled
Enables or disables the serial port.
• Enabled
• Auto (default)
• 3F8 (default)
• 2F8
Base I/O address
Specifies the base I/O address for the serial port. This
option appears only when Serial Port A is set to Enabled.
• 3E8
• 2E8
Interrupt
• IRQ 3
• IRQ 4 (default)
• Disabled
• Enabled (default)
• Disabled
Specifies the interrupt assigned to the serial port. This
option appears only when Serial Port A is set to Enabled.
Audio Device
LAN Device
Enables or disables the onboard audio subsystem.
Enables or disable the onboard LAN controller.
• Enabled (default)
• Disabled
• Enabled (default)
Legacy USB Support
Enables or disables USB legacy support.
(See Section 3.8 on page 68 for more information.)
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4.4.3 IDE Configuration Submenu
To access this submenu, select Advanced on the menu bar,
then IDE Configuration.
Maintenance
Main
Security
Advanced
Boot Configuration
Power
Boot
Exit
Peripheral Configuration
IDE Configuration
Primary IDE Master
Primary IDE Slave
Secondary IDE Master
Secondary IDE Slave
Diskette Configuration
Event Log Configuration
Video Configuration
The menu represented in Table 50 is used to configure IDE device options.
Table 50. IDE Configuration Submenu
Feature
Options
Description
Specifies the integrated IDE controller.
Primary enables only the Primary IDE Controller.
Secondary enables only the Secondary IDE Controller.
Both enables both IDE controllers.
IDE Controller
• Disabled
• Primary
• Secondary
• Both (default)
Hard Disk Pre-Delay
• Disabled (default) Specifies the hard disk drive pre-delay.
• 3 Seconds
• 6 Seconds
• 9 Seconds
• 12 Seconds
• 15 Seconds
• 21 Seconds
• 30 Seconds
4Primary IDE Master
4Primary IDE Slave
No options
Reports type of connected IDE device. When selected,
displays the Primary IDE Master submenu.
No options
Reports type of connected IDE device. When selected,
displays the Primary IDE Slave submenu.
4Secondary IDE Master No options
4Secondary IDE Slave No options
Reports type of connected IDE device. When selected,
displays the Secondary IDE Master submenu.
Reports type of connected IDE device. When selected,
displays the Secondary IDE Slave submenu.
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4.4.3.1 Primary/Secondary IDE Master/Slave Submenus
To access these submenus, select Advanced on the menu bar,
then IDE Configuration and then the master or slave to be configured.
Maintenance
Main
Security
Advanced
Boot Configuration
Power
Boot
Exit
Peripheral Configuration
IDE Configuration
Primary IDE Master
Primary IDE Slave
Secondary IDE Master
Secondary IDE Slave
Diskette Configuration
Event Log Configuration
Video Configuration
There are four IDE submenus: primary master, primary slave, secondary master, and secondary
slave. Table 51 shows the format of the IDE submenus. For brevity, only one example is shown.
Table 51. Primary/Secondary IDE Master/Slave Submenus
Feature
Options
Description
Type
• None
Specifies the IDE configuration mode for IDE devices.
• User
• Auto (default)
• CD-ROM
User allows the user to change the other features in this
table.
Auto automatically sets the other features in this table.
• ATAPI Removable
• Other ATAPI
• IDE Removable
• Disabled
Any setting other than None or Auto enables the user to
set features.
LBA Mode Control
Enables or disables the LBA mode control.
• Enabled (default)
• Disabled
• 2 Sectors
Multi-Sector Transfers
Specifies number of sectors per block for transfers from
the hard disk drive to memory.
Check the hard disk drive’s specifications for optimum
setting.
• 4 Sectors
• 8 Sectors
• 16 Sectors (default)
continued
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Table 51. Primary/Secondary IDE Master/Slave Submenus (continued)
Feature
Options
Description
PIO Mode
• Auto (default)
• 0
Configures the PIO mode.
• 1
• 2
• 3
• 4
Auto sets the PIO mode to the fastest speed supported.
Specifies the Ultra DMA mode for the drive.
Ultra DMA
• Disabled (default)
• Mode 0
• Mode 1
• Mode 2
• Mode 3
• Mode 4
• Auto
Use ARMD Drive As
Specifies the type of ARMD drive.
• Floppy (default)
• Hard Disk
This option appears only if an ARMD drive is attached to
an IDE interface.
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4.4.4 Event Log Configuration
To access this menu, select Advanced on the menu bar, then Event Log Configuration.
Maintenance Main Security Power Boot Exit
Boot Configuration
Advanced
Peripheral Configuration
IDE Configuration
Event Log Configuration
Video Configuration
The submenu represented by Table 52 is used to configure the event logging features.
Table 52. Event Log Configuration Submenu
Feature
Options
Description
Event log
No options
No options
[Enter]
Indicates if there is space available in the event log.
Indicates if the contents of the event log are valid.
Displays the event log.
Event log validity
View event log
Clear all event logs
• No (default)
• Yes
Clears the event log after rebooting.
Event Logging
• Disabled
• Enabled (default)
[Enter]
Enables logging of events.
Marks all events as read.
Mark events as read
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4.4.5 Video Configuration
To access this menu, select Advanced on the menu bar, then Video Configuration.
Maintenance
Main
Security
Advanced
Boot Configuration
Power
Boot
Exit
Peripheral Configuration
IDE Configuration
Event Log Configuration
Video Configuration
The submenu represented by Table 52 is used to select the video adapter.
Table 53. Video Configuration Submenu
Feature
Options
Description
Primary Video Adapter
• AGP (default)
• PCI
Selects the Direct AGP or PCI video controller as the
display device that will be active when the systems
boots.
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BIOS Setup Program
4.5 Security Menu
To access this menu, select Security from the menu bar at the top of the screen.
Maintenance Main Advanced Power Boot
Exit
Security
The menu represented by Table 54 is for setting passwords and security features.
Table 54. Security Menu
Feature
Options
Description
Supervisor Password Is
User Password Is
Set Supervisor Password
No options.
No options.
Reports if there is a supervisor password set.
Reports if there is a user password set.
Specifies the supervisor password.
Password can be up to seven
alphanumeric characters.
Set User Password
Password can be up to seven
alphanumeric characters.
Specifies the user password.
Clears the user password.
Clear User Password
(Note 1)
• Yes (default)
• No
User Access Level
(Note 2)
• Limited
Sets BIOS Setup Utility access rights for user
level.
• No Access
• View Only
• Full (default)
• Disabled (default)
• Enabled
Unattended Start
(Note 1)
Enables or disables Wake on network event
capability. The keyboard remains locked until
a password is entered.
Notes:
1. This feature appears only if a user password has been set.
2. This feature appears only if both a user password and a supervisor password have been set.
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4.6 Power Menu
To access this menu, select Power from the menu bar at the top of the screen.
Maintenance
Main
Advanced Security
Boot
Exit
Power
The menu represented in Table 55 is for setting the power management features.
Table 55. Power Menu
Feature
Options
Description
ACPI Suspend State
• S1 State (default)
• S3 State
Specifies the ACPI suspend state
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4.7 Boot Menu
To access this menu, select Boot from the menu bar at the top of the screen.
Maintenance
Main
Advanced Security
Power
Exit
Boot
IDE Drive Configuration
The menu represented in Table 56 is used to set the boot features and the boot sequence.
Table 56. Boot Menu
Feature
Options
Description
Quiet Boot
• Disabled
Disabled displays normal POST messages.
• Enabled (default)
Enabled displays the OEM logo instead of POST
messages.
Quick Boot
• Disabled
Enables the computer to boot without running certain
POST tests.
• Enabled (default)
• Disabled (default)
• Enabled
Scan User Flash
Area
Enables the BIOS to scan the flash memory for user
binary files that are executed at boot time.
After Power Failure
• Stays Off
• Last State (default)
• Power On
Specifies the mode of operation if an AC/Power loss
occurs.
Power On restores power to the computer.
Stay Off keeps the power off until the power button is
pressed.
Last State restores the previous power state before
power loss occurred.
On PME
• Stay Off (default)
• Power On
Specifies how the computer responds to a PME wakeup
event when the power is off (from an ACPI S3 state).
continued
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Table 56. Boot Menu (continued)
Description
Feature
Options
First Boot Device
Second Boot Device
Third Boot Device
Fourth Boot Device
• ARMD-FDD
Specifies the boot sequence according to the device
type. The computer will attempt to boot from up to
four devices as specified here. Only one of the
devices can be an IDE hard disk drive.
(Note 1)
• ARMD-HDD
(Note 2)
To specify the boot sequence:
• IDE-HDD
• ATAPI CDROM
1. Select the boot device with <↑> or <↓>.
2. Press <Enter> to set the selection as the intended
boot device.
• Intel UNDI,
PXE 2.0 (Note 3)
The default settings for the first through fourth boot
devices are, respectively:
• Disabled
• ATAPI CDROM
• IDE-HDD
• Intel UNDI, PXE 2.0 (build 071)
• Disabled
NOTE: To configure the computer to boot from an
IDE hard disk drive, set a boot device in this Setup
feature to IDE-HDD. Determine the IDE channel, and
master or slave mode of the drive. Then, in the next
Setup feature, IDE Drive Configuration, set that
channel and mode to 1st IDE.
4IDE Drive Configuration
Primary Master IDE
Primary Slave IDE
• 1st IDE (default)
• 2nd IDE
1st IDE specifies the IDE hard disk drive to boot from.
The 2nd through 4th IDE settings are ignored. See the
note above for more information.
• 3rd IDE
To specify the drive to boot from:
Secondary Master IDE • 4th IDE
1. Use <↑> or <↓> to select the channel, and master
Secondary Slave IDE
or slave mode of the drive to boot from.
2. Press <Enter>.
3. Use <↑> or <↓> to select 1st IDE.
4. Press <Enter> to set the selection.
Notes:
1. ARMD-FDD = ATAPI removable device - floppy disk drive (LS-120)
2. ARMD-HDD = ATAPI removable device - hard disk drive
3. UNDI = Universal network interface card (NIC) driver interface
PXE = Pre-boot execution environment
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BIOS Setup Program
4.8 Exit Menu
To access this menu, select Exit from the menu bar at the top of the screen.
Maintenance
Main
Advanced Security
Power
Boot
Exit
The menu represented in Table 57 is for exiting the BIOS Setup program, saving changes, and
loading and saving defaults.
Table 57. Exit Menu
Feature
Description
Exit Saving Changes
Exits and saves the changes in CMOS SRAM.
Exit Discarding Changes Exits without saving any changes made in the BIOS Setup program.
Load Setup Defaults
Load Custom Defaults
Save Custom Defaults
Loads the factory default values for all the Setup options.
Loads the custom defaults for Setup options.
Saves the current values as custom defaults. Normally, the BIOS reads the
Setup values from flash memory. If this memory is corrupted, the BIOS reads the
custom defaults. If no custom defaults are set, the BIOS reads the factory
defaults.
Discard Changes
Discards changes without exiting Setup. The option values present when the
computer was turned on are used.
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5 Error Messages and Beep Codes
What This Chapter Contains
5.1 BIOS Error Messages................................................................................................ 89
5.2 Port 80h POST Codes............................................................................................... 91
5.3 Bus Initialization Checkpoints .................................................................................... 95
5.4 Speaker..................................................................................................................... 96
5.5 BIOS Beep Codes ..................................................................................................... 97
5.1 BIOS Error Messages
Table 58 lists the error messages and provides a brief description of each.
Table 58. BIOS Error Messages
Error Message
Explanation
GA20 Error
An error occurred with Gate-A20 when switching to protected
mode during the memory test.
Pri Master HDD Error
Pri Slave HDD Error
Sec Master HDD Error
Sec Slave HDD Error
Could not read sector from corresponding drive.
Pri Master Drive - ATAPI Incompatible
Pri Slave Drive - ATAPI Incompatible
Sec Master Drive - ATAPI Incompatible
Sec Slave Drive - ATAPI Incompatible
Corresponding drive is not an ATAPI device. Run Setup to make
sure device is selected correctly.
Cache Memory Bad
An error occurred when testing L2 cache. Cache memory may be
bad.
CMOS Battery Low
The battery may be losing power. Replace the battery soon.
CMOS Display Type Wrong
The display type is different than what has been stored in CMOS.
Check Setup to make sure type is correct.
CMOS Checksum Bad
CMOS Settings Wrong
CMOS Date/Time Not Set
The CMOS checksum is incorrect. CMOS memory may have
been corrupted. Run Setup to reset values.
CMOS values are not the same as the last boot. These values
have either been corrupted or the battery has failed.
The time and/or date values stored in CMOS are invalid. Run
Setup to set correct values.
DMA Error
Error during read/write test of DMA controller.
HDC Failure
Error occurred trying to access hard disk controller.
continued
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Table 58. BIOS Error Messages (continued)
Error Message
Checking NVRAM.....
Update OK!
Explanation
NVRAM is being checked to see if it is valid.
NVRAM was invalid and has been updated.
NVRAM was invalid but was unable to be updated.
Updated Failed
Keyboard Error
Error in the keyboard connection. Make sure keyboard is
connected properly.
Memory Size Decreased
Memory Size Increased
Memory Size Changed
Memory size has decreased since the last boot. If no memory
was removed then memory may be bad.
Memory size has increased since the last boot. If no memory was
added there may be a problem with the system.
Memory size has changed since the last boot. If no memory was
added or removed then memory may be bad.
No Boot Device Available
Off Board Parity Error
System did not find a device to boot.
A parity error occurred on an offboard card. This error is followed
by an address.
On Board Parity Error
Parity Error
A parity error occurred in onboard memory. This error is followed
by an address.
A parity error occurred in onboard memory at an unknown
address.
NVRAM / CMOS / PASSWORD cleared NVRAM, CMOS, and passwords have been cleared. The system
by Jumper
should be powered down and the jumper removed.
<CTRL_N> Pressed
CMOS is ignored and NVRAM is cleared. User must enter Setup.
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Error Messages and Beep Codes
5.2 Port 80h POST Codes
During the POST, the BIOS generates diagnostic progress codes (POST-codes) to I/O port 80h. If
the POST fails, execution stops and the last POST code generated is left at port 80h. This code is
useful for determining the point where an error occurred.
Displaying the POST-codes requires an add-in card (often called a POST card). The POST card
can decode the port and display the contents on a medium such as a seven-segment display.
The tables below offer descriptions of the POST codes generated by the BIOS. Table 59 defines
the Uncompressed INIT Code Checkpoints, Table 60 describes the Boot Block Recovery Code
Checkpoints, and Table 61 lists the Runtime Code Uncompressed in F000 Shadow RAM. Some
codes are repeated in the tables because that code applies to more than one operation.
Table 59. Uncompressed INIT Code Checkpoints
Code
Description of POST Operation
D0
NMI is disabled. Onboard KBC, RTC enabled (if present). Init code Checksum verification
starting.
D1
D3
D4
D5
D6
Keyboard controller BAT test, CPU ID saved, and going to 4 GB flat mode.
Do necessary chipset initialization, start memory refresh, do memory sizing.
Verify base memory.
Init code to be copied to segment 0 and control to be transferred to segment 0.
Control is in segment 0. To check recovery mode and verify main BIOS checksum. If the BIOS is
in recovery mode or the main BIOS checksum is bad, go to check point E0 for recovery else go to
check point D7 for giving control to main BIOS.
D7
D8
D9
Find main BIOS module in ROM image.
Uncompress the main BIOS module.
Copy main BIOS image to F000 shadow RAM and give control to main BIOS in F000 shadow
RAM.
Table 60. Boot Block Recovery Code Checkpoints
Code
Description of POST Operation
E0
Onboard floppy controller (if any) is initialized. Compressed recovery code is uncompressed in
F000:0000 in shadow RAM and give control to recovery code in F000 Shadow RAM. Initialize
interrupt vector tables, initialize system timer, initialize DMA controller, interrupt controller.
E8
E9
EA
EB
EC
EF
Initialize extra (Intel Recovery) Module.
Initialize floppy drive.
Try to boot from floppy. If reading of boot sector is successful, give control to boot sector code.
†
Booting from floppy failed, look for ATAPI (LS-120, Zip ) devices.
Try to boot from ATAPI. If reading of boot sector is successful, give control to boot sector code.
Booting from floppy and ATAPI device failed. Give two beeps. Retry the booting procedure again
(go to check point E9).
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Table 61. Runtime Code Uncompressed in F000 Shadow RAM
Code
03
Description of POST Operation
NMI is Disabled. To check soft reset/power-on.
BIOS stack set. Going to disable cache if any.
POST code to be uncompressed.
05
06
07
CPU init and CPU data area init to be done.
08
CMOS checksum calculation to be done next.
Any initialization before keyboard BAT to be done next.
KB controller I/B free. To issue the BAT command to keyboard controller.
Any initialization after KB controller BAT to be done next.
Keyboard command byte to be written.
0B
0C
0E
0F
10
Going to issue Pin-23, 24 blocking/unblocking command.
Going to check pressing of <INS>, <END> key during power-on.
11
12
To init CMOS if "Init CMOS in every boot" is set or <END> key is pressed. Going to disable DMA
and Interrupt controllers.
13
14
19
1A
23
Video display is disabled and port-B is initialized. Chipset init about to begin.
8254 timer test about to start.
About to start memory refresh test.
Memory Refresh line is toggling. Going to check 15 µs ON/OFF time.
To read 8042 input port and disable Megakey GreenPC feature. Make BIOS code segment
writeable.
24
25
27
28
2A
To do any setup before Int vector init.
Interrupt vector initialization to begin. To clear password if necessary.
Any initialization before setting video mode to be done.
Going for monochrome mode and color mode setting.
Different buses init (system, static, output devices) to start if present. (See Section 5.3 for details
of different buses.)
2B
2C
2D
2E
2F
30
31
32
34
37
38
To give control for any setup required before optional video ROM check.
To look for optional video ROM and give control.
To give control to do any processing after video ROM returns control.
If EGA/VGA not found then do display memory R/W test.
EGA/VGA not found. Display memory R/W test about to begin.
Display memory R/W test passed. About to look for the retrace checking.
Display memory R/W test or retrace checking failed. To do alternate display memory R/W test.
Alternate display memory R/W test passed. To look for the alternate display retrace checking.
Video display checking over. Display mode to be set next.
Display mode set. Going to display the power on message.
Different buses init (input, IPL, general devices) to start if present. (See Section 5.3 for details of
different buses.)
39
3A
Display different buses initialization error messages. (See Section 5.3 for details of different
buses.)
New cursor position read and saved. To display the Hit <DEL> message.
continued
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Error Messages and Beep Codes
Table 61. Runtime Code Uncompressed in F000 Shadow RAM (continued)
Code
40
Description of POST Operation
To prepare the descriptor tables.
42
To enter in virtual mode for memory test.
To enable interrupts for diagnostics mode.
To initialize data to check memory wrap around at 0:0.
43
44
45
Data initialized. Going to check for memory wrap around at 0:0 and finding the total system
memory size.
46
Memory wrap around test done. Memory size calculation over. About to go for writing patterns to
test memory.
47
48
49
Pattern to be tested written in extended memory. Going to write patterns in base 640 K memory.
Patterns written in base memory. Going to find out amount of memory below 1 M memory.
Amount of memory below 1 M found and verified. Going to find out amount of memory above 1 M
memory.
4B
Amount of memory above 1 M found and verified. Check for soft reset and going to clear memory
below 1 M for soft reset. (If power on, go to check point # 4Eh).
4C
4D
Memory below 1 M cleared. (SOFT RESET) Going to clear memory above 1 M.
Memory above 1 M cleared. (SOFT RESET) Going to save the memory size. (Go to check
point # 52h).
4E
4F
Memory test started. (NOT SOFT RESET) About to display the first 64 K memory size.
Memory size display started. This will be updated during memory test. Going for sequential and
random memory test.
50
Memory testing/initialization below 1 M complete. Going to adjust displayed memory size for
relocation/ shadow.
51
52
53
54
57
Memory size display adjusted due to relocation/shadow. Memory test above 1 M to follow.
Memory testing/initialization above 1 M complete. Going to save memory size information.
Memory size information is saved. CPU registers are saved. Going to enter in real mode.
Shutdown successful, CPU in real mode. Going to disable gate A20 line and disable parity/NMI.
A20 address line, parity/NMI disable successful. Going to adjust memory size depending on
relocation/shadow.
58
59
Memory size adjusted for relocation/shadow. Going to clear Hit <DEL> message.
Hit <DEL> message cleared. <WAIT...> message displayed. About to start DMA and interrupt
controller test.
60
62
65
66
7F
80
DMA page register test passed. To do DMA#1 base register test.
DMA#1 base register test passed. To do DMA#2 base register test.
DMA#2 base register test passed. To program DMA unit 1 and 2.
DMA unit 1 and 2 programming over. To initialize 8259 interrupt controller.
Extended NMI sources enabling is in progress.
Keyboard test started. Clearing output buffer, checking for stuck key, to issue keyboard reset
command.
81
82
83
Keyboard reset error/stuck key found. To issue keyboard controller interface test command.
Keyboard controller interface test over. To write command byte and init circular buffer.
Command byte written, global data init done. To check for lock-key.
continued
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Table 61. Runtime Code Uncompressed in F000 Shadow RAM (continued)
Code
84
Description of POST Operation
Lock-key checking over. To check for memory size mismatch with CMOS.
Memory size check done. To display soft error and check for password or bypass setup.
Password checked. About to do programming before setup.
85
86
87
Programming before setup complete. To uncompress SETUP code and execute CMOS setup.
88
Returned from CMOS setup program and screen is cleared. About to do programming after
setup.
89
8B
Programming after setup complete. Going to display power on screen message.
First screen message displayed. <WAIT...> message displayed. PS/2 Mouse check and
extended BIOS data area allocation to be done.
8C
8D
8F
91
95
Setup options programming after CMOS setup about to start.
Going for hard disk controller reset.
Hard disk controller reset done. Floppy setup to be done next.
Floppy setup complete. Hard disk setup to be done next.
Init of different buses optional ROMs from C800 to start. (See Section 5.3 for details of different
buses.)
96
97
Going to do any init before C800 optional ROM control.
Any init before C800 optional ROM control is over. Optional ROM check and control will be done
next.
98
99
Optional ROM control is done. About to give control to do any required processing after optional
ROM returns control and enable external cache.
Any initialization required after optional ROM test over. Going to setup timer data area and printer
base address.
9A
9B
9C
9D
9E
Return after setting timer and printer base address. Going to set the RS-232 base address.
Returned after RS-232 base address. Going to do any initialization before coprocessor test.
Required initialization before coprocessor is over. Going to initialize the coprocessor next.
Coprocessor initialized. Going to do any initialization after coprocessor test.
Initialization after coprocessor test is complete. Going to check extended keyboard, keyboard ID,
and Num Lock.
A2
A3
A4
A5
A7
Going to display any soft errors.
Soft error display complete. Going to set keyboard typematic rate.
Keyboard typematic rate set. To program memory wait states.
Going to enable parity/NMI.
NMI and parity enabled. Going to do any initialization required before giving control to optional
ROM at E000.
A8
A9
Initialization before E000 ROM control over. E000 ROM to get control next.
Returned from E000 ROM control. Going to do any initialization required after E000 optional
ROM control.
AA
AB
AC
AD
Initialization after E000 optional ROM control is over. Going to display the system configuration.
Put INT13 module runtime image to shadow.
Generate MP for multiprocessor support (if present).
Put CGA INT10 module (if present) in shadow.
continued
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Error Messages and Beep Codes
Table 61. Runtime Code Uncompressed in F000 Shadow RAM (continued)
Code
Description of POST Operation
AE
Uncompress SMBIOS module and init SMBIOS code and form the runtime SMBIOS image in
shadow.
B1
00
Going to copy any code to specific area.
Copying of code to specific area done. Going to give control to INT19 boot loader.
5.3 Bus Initialization Checkpoints
The system BIOS gives control to the different buses at several checkpoints to do various tasks.
Table 62 describes the bus initialization checkpoints.
Table 62. Bus Initialization Checkpoints
Checkpoint
Description
2A
38
39
95
Different buses init (system, static, and output devices) to start if present.
Different buses init (input, IPL, and general devices) to start if present.
Display different buses initialization error messages.
Init of different buses optional ROMs from C800 to start.
While control is inside the different bus routines, additional checkpoints are output to port 80h as a
WORD to identify the routines under execution. In these WORD checkpoints, the low byte of the
checkpoint is the system BIOS checkpoint from which the control is passed to the different bus
routines. The high byte of the checkpoint is the indication of which routine is being executed in
the different buses. Table 63 describes the upper nibble of the high byte and indicates the function
that is being executed.
Table 63. Upper Nibble High Byte Functions
Value
Description
0
1
2
3
4
5
6
7
func#0, disable all devices on the bus concerned
func#1, static devices init on the bus concerned
func#2, output device init on the bus concerned
func#3, input device init on the bus concerned
func#4, IPL device init on the bus concerned
func#5, general device init on the bus concerned
func#6, error reporting for the bus concerned
func#7, add-on ROM init for all buses
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Intel Desktop Board D810EMO/MO810E Technical Product Specification
Table 64 describes the lower nibble of the high byte and indicates the bus on which the routines are
being executed.
Table 64. Lower Nibble High Byte Functions
Value
Description
0
1
2
3
4
5
Generic DIM (Device Initialization Manager)
Onboard system devices
ISA devices
EISA devices
ISA PnP devices
PCI devices
5.4 Speaker
A 47 Ω inductive speaker is mounted on the board. The speaker provides audible error code (beep
code) information during the power-on self-test (POST).
For information about
Refer to
The location of the onboard speaker
Figure 1, page 11
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Error Messages and Beep Codes
5.5 BIOS Beep Codes
Whenever a recoverable error occurs during power-on self-test (POST), the BIOS displays an error
message describing the problem (see Table 65). The BIOS also issues a beep code (one long tone
followed by two short tones) during POST if the video configuration fails (a faulty video card or
no card installed) or if an external ROM module does not properly checksum to zero.
An external ROM module (for example, a video BIOS) can also issue audible errors, usually
consisting of one long tone followed by a series of short tones. For more information on the beep
codes issued, check the documentation for that external device.
There are several POST routines that issue a POST terminal error and shut down the system if they
fail. Before shutting down the system, the terminal-error handler issues a beep code signifying the
test point error, writes the error to I/O port 80h, attempts to initialize the video and writes the error
in the upper left corner of the screen (using both monochrome and color adapters).
If POST completes normally, the BIOS issues one short beep before passing control to the
operating system.
Table 65. Beep Codes
Beep
Description
1
Refresh failure
2
Parity cannot be reset
First 64 KB memory failure
Timer not operational
3
4
5
Not used
6
8042 GateA20 cannot be toggled
Exception interrupt error
Display memory R/W error
Not used
7
8
9
10
11
CMOS Shutdown register test error
Invalid BIOS (e.g. POST module not found, etc.)
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