Asus PSCH SR User Manual

PSCH-SR  
Series  
User Guide  
Contents  
Notices ............................................................................................v  
Safety information .......................................................................... vi  
About this guide............................................................................. vii  
PSCH-SR specifications summary ................................................. ix  
Chapter 1: Product introduction  
1.1 Welcome! ........................................................................... 1-1  
1.2 Package contents ............................................................... 1-1  
1.3 Special features.................................................................. 1-2  
Chapter 2: Hardware information  
2.1 Before you proceed ............................................................ 2-1  
2.2 Motherboard installation ..................................................... 2-2  
2.2.1 Placement direction ............................................... 2-2  
2.2.2 Screw holes ........................................................... 2-2  
2.2.3 Motherboard layouts .............................................. 2-3  
2.2.4 Layout contents ..................................................... 2-6  
2.3 Central Processing Unit (CPU)........................................... 2-7  
2.3.1 Overview ................................................................ 2-7  
2.3.2 Installing the CPU .................................................. 2-7  
2.3.3 Installing the optional CPU heatsink  
and thermal plate ................................................... 2-9  
2.4 System memory ................................................................2-11  
2.4.1 Overview ...............................................................2-11  
2.4.2 Memory configurations .........................................2-11  
2.4.3 Installing a DIMM ................................................. 2-13  
2.4.4 Removing a DIMM ............................................... 2-13  
2.5 Expansion slots ................................................................ 2-14  
2.5.1 Installing an expansion card ................................ 2-14  
2.5.2 Configuring an expansion card ............................ 2-14  
2.5.3 PCI slots .............................................................. 2-16  
2.6 Jumpers............................................................................ 2-17  
2.7 Connectors ....................................................................... 2-22  
2.7.1 Rear panel connectors......................................... 2-22  
2.7.2 Internal connectors .............................................. 2-23  
Chapter 3: Powering up  
3.1 Starting up for the first time ................................................ 3-1  
3.2 Powering off the computer ................................................. 3-2  
3.3.1 Using the OS shut down function .......................... 3-2  
3.3.2 Using the dual function power switch .................... 3-2  
iii  
Contents  
Chapter 4: BIOS setup  
4.1 Managing and updating your BIOS .................................... 4-1  
4.1.1 Creating a bootable floppy disk ............................. 4-1  
4.1.2 Updating the BIOS ................................................. 4-2  
4.1.3 Saving the current BIOS file .................................. 4-4  
4.2 BIOS Setup program .......................................................... 4-6  
4.2.1 BIOS menu screen ................................................ 4-7  
4.2.2 Menu bar ................................................................ 4-7  
4.2.3 Navigation keys ..................................................... 4-8  
4.2.4 General help .......................................................... 4-8  
4.2.5 Sub-menu .............................................................. 4-8  
4.2.6 Scroll bar ................................................................ 4-8  
4.2.7 Pop-up window ...................................................... 4-8  
4.3 Main menu.......................................................................... 4-9  
4.3.1 Primary IDE Master ............................................. 4-10  
4.3.2 Primary IDE Slave ............................................... 4-13  
4.3.3 Secondary IDE Master ......................................... 4-13  
4.3.4 Secondary IDE Slave........................................... 4-13  
4.4 Advanced menu ............................................................... 4-14  
4.4.1 Advanced BIOS Features .................................... 4-15  
4.4.2 CPU Configuration ............................................... 4-16  
4.4.3 Memory Configuration ......................................... 4-17  
4.4.4 Chipset................................................................. 4-18  
4.4.5 Onboard Device ................................................... 4-20  
4.4.6 PCIPnP ................................................................ 4-24  
4.4.7 USB Configuration ............................................... 4-26  
4.5 Power menu ..................................................................... 4-27  
4.5.1 APM Configuration ............................................... 4-27  
4.5.2 Hardware Monitor ................................................ 4-31  
4.6 Boot menu ........................................................................ 4-33  
4.6.1 Boot Device Priority ............................................. 4-33  
4.6.2 Hard Disk Boot Priority ........................................ 4-34  
4.6.3 Removable Device Priority .................................. 4-34  
4.6.4 CD-ROM Boot Priority ......................................... 4-35  
4.6.5 Boot Settings Configuration ................................. 4-35  
4.6.6 Security ................................................................ 4-37  
4.7 Exit menu ......................................................................... 4-39  
Appendix: Reference information  
A.1 PSCH-SR block diagrams .................................................. A-1  
iv  
Notices  
Federal Communications Commission Statement  
This device complies with Part 15 of the FCC Rules. Operation is subject to  
the following two conditions:  
• This device may not cause harmful interference, and  
• This device must accept any interference received including interference  
that may cause undesired operation.  
This equipment has been tested and found to comply with the limits for a  
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits  
are designed to provide reasonable protection against harmful interference  
in a residential installation. This equipment generates, uses and can radiate  
radio frequency energy and, if not installed and used in accordance with  
manufacturer’s instructions, may cause harmful interference to radio  
communications. However, there is no guarantee that interference will not  
occur in a particular installation. If this equipment does cause harmful  
interference to radio or television reception, which can be determined by  
turning the equipment off and on, the user is encouraged to try to correct the  
interference by one or more of the following measures:  
• Reorient or relocate the receiving antenna.  
• Increase the separation between the equipment and receiver.  
• Connect the equipment to an outlet on a circuit different from that to  
which the receiver is connected.  
• Consult the dealer or an experienced radio/TV technician for help.  
The use of shielded cables for connection of the monitor to the  
graphics card is required to assure compliance with FCC regulations.  
Changes or modifications to this unit not expressly approved by the  
party responsible for compliance could void the users authority to  
operate this equipment.  
Canadian Department of Communications Statement  
This digital apparatus does not exceed the Class B limits for radio noise  
emissions from digital apparatus set out in the Radio Interference  
Regulations of the Canadian Department of Communications.  
This class B digital apparatus complies with Canadian ICES-003.  
v
Safety information  
Electrical safety  
To prevent electrical shock hazard, disconnect the power cable from  
the electrical outlet before relocating the system.  
When adding or removing devices to or from the system, ensure that  
the power cables for the devices are unplugged before the signal  
cables are connected. If possible, disconnect all power cables from the  
existing system before you add a device.  
Before connecting or removing signal cables from the motherboard,  
ensure that all power cables are unplugged.  
Seek professional assistance before using an adapter or extension  
cord. These devices could interrupt the grounding circuit.  
Make sure that your power supply is set to the correct voltage in your  
area. If you are not sure about the voltage of the electrical outlet you  
are using, contact your local power company.  
If the power supply is broken, do not try to fix it by yourself. Contact a  
qualified service technician or your retailer.  
Operation safety  
Before installing the motherboard and adding devices on it, carefully  
read all the manuals that came with the package.  
Before using the product, make sure all cables are correctly connected  
and the power cables are not damaged. If you detect any damage,  
contact your dealer immediately.  
To avoid short circuits, keep paper clips, screws, and staples away from  
connectors, slots, sockets and circuitry.  
Avoid dust, humidity, and temperature extremes. Do not place the  
product in any area where it may become wet.  
Place the product on a stable surface.  
If you encounter technical problems with the product, contact a  
qualified service technician or your retailer.  
vi  
About this guide  
This user guide contains the information you need when installing and  
configuring the motherboard.  
How this guide is organized  
This user guide contains the following parts:  
• Chapter 1: Product introduction  
This chapter describes the features of the motherboard. It includes  
brief descriptions of the special attributes of the motherboard and the  
new technology it supports.  
• Chapter 2: Hardware installation  
This chapter lists the hardware setup procedures that you have to  
perform when installing system components. It includes description of  
the switches, jumpers, and connectors on the motherboard.  
Chapter 3: Powering up  
This chapter describes the power up sequence and gives information  
on the BIOS beep codes.  
• Chapter 4: BIOS setup  
This chapter tells how to change system settings through the BIOS  
Setup menus. Detailed descriptions of the BIOS parameters are also  
provided.  
• Appendix: Reference information  
This appendix includes additional information that you may refer to  
when confiiguring the motherboard.  
vii  
Conventions used in this guide  
To make sure that you perform certain tasks properly, take note of the  
following symbols used throughout this manual.  
WARNING: Information to prevent injury to yourself when trying  
to complete a task.  
CAUTION: Information to prevent damage to the components  
when trying to complete a task.  
IMPORTANT: Information that you MUST follow to complete a  
task.  
NOTE: Tips and additional information to aid in completing a task.  
Where to find more information  
Refer to the following sources for additional information and for product  
and software updates.  
1. ASUS websites  
The ASUS websites worldwide provide updated information on ASUS  
hardware and software products. Refer to the ASUS contact  
information.  
2. Optional documentation  
Your product package may include optional documentation, such as  
warranty flyers, that may have been added by your dealer. These  
documents are not part of the standard package.  
viii  
PSCH-SR Series specifications summary  
CPU  
Socket 478 for Intel® Pentium4 Prescott processors with  
Hyper-Threading Technology  
On-die 1MB/512KB L2 cache  
Chipset  
Northbridge: Intel® E7210 Memory Controller Hub (MCH)  
Southbridge: Intel® 6300ESB I/O Controller Hub (ICH)  
Front Side Bus (FSB)  
Memory  
800/533/400 MHz  
Dual-channel memory architecture  
4 x 184-pin DDR DIMM sockets for up to 4 GB memory  
supports PC3200/PC2700/PC2100 unbuffered ECC or  
non-ECC DDR DIMMs  
Expansion slots  
Storage  
1 x 3.3 V/64-bit/66 MHz PCI-X with Zero Channel RAID  
(ZCR) support  
2 x 5 V/32-bit/33 MHz PCI  
IDE model  
Intel® 6300ESB I/O Controller Hub (ICH) supports:  
- 2 x IDE connectors (dual-channel bus master IDE  
for up to four UltraATA100/66/33 hard disk drives  
- 2 x Serial ATA connectors (for RAID 0 and RAID 1  
configurations using two SATA hard disk drives and  
Windows® XP)  
Serial ATA model  
IDE model storage + Adaptec® AIC-8110X support:  
- 4 x Serial ATA connectors (for RAID 0, RAID 1,  
RAID 0+1, and RAID 5 configurations using four SATA  
hard disk drives and the optional Adaptec® SODIMM  
Zero Channel RAID card)  
SCSI model  
IDE model storage + Adaptec® AIC-7901X support:  
- Single channel Ultra320 SCSI connector (for RAID 0,  
RAID 1, RAID 0+1, and RAID 5 configurations using  
SCSI hard disk drives and the optional Adaptec®  
SODIMM Zero Channel RAID card)  
Graphics  
LAN  
ATI RageXL PCI graphics controller with 8 MB VRAM  
Intel® 82547GI CSA Gigabit LAN controller  
Intel® 82541GI Gigabit LAN controller (32-bit)  
ASUS unique features  
ASUS Q-Fan Technology  
ASUS Update  
(continued on the next page)  
ix  
PSCH-SR Series specifications summary  
Rear panel ports  
1 x Serial (COM1) port  
2 x LAN (RJ-45) ports  
1 x PS/2 keyboard port  
1 x PS/2 mouse port  
2 x USB 2.0 ports  
1 x VGA port  
Internal connectors  
CPU/system/chassis fan connectors  
20-pin ATX and 4-pin ATX 12V power connectors  
20-pin front panel connectors  
USB 2.0/1.1 connector  
Chassis intrusion connector  
Serial port (COM2) connector (for server management use only)  
Baseboard Management Connector (BMC) for server  
management card  
SODIMM slot for Adaptec® Zero Channel RAID card (optional on  
SCSI/SATA models only)  
68-pin Ultra320 SCSI connector (SCSI models only)  
4 x horizontal Serial ATA connectors (SATA models only)  
BIOS features  
Firmware Hub Flash ROM (4 Mb for IDE models; 8 Mb for  
SCSI and SATA models), Award BIOS with enhanced ACPI,  
PnP, DMI2.0, Green  
Industry standard  
Manageability  
PCI 2.2, PCI-X 1.0a, USB 2.0  
WfM 2.0. DMI 2.0, WOL/WOR by PME, chassis intrusion  
ATX power supply (with 4-pin 12V plug)  
ATX form factor: 12in x 9.8in (30.5 cm x 25 cm)  
Power requirement  
Form Factor  
Support CD contents  
Device drivers  
Management software  
System utilities  
ASUS contact information  
*Specifications are subject to change without notice.  
x
Chapter 1  
This chapter describes the features of the  
motherboard. It includes brief descriptions  
of the special attributes of the motherboard  
and the new technology it supports.  
Product introduction  
Chapter summary  
1.1 Welcome! ........................................................ 1-1  
1.2 Package contents .......................................... 1-1  
1.3 Special features ............................................. 1-2  
ASUS PSCH-SR motherboard  
1.1 Welcome!  
Thank you for buying the ASUS® PSCH-SR series motherboard!  
The ASUSPSCH-SR series motherboard delivers a host of new features  
and latest technologies making it another standout in the long line of  
ASUS quality motherboards!  
The motherboard incorporates the Intel® Pentium4 processor in 478-pin  
package coupled with the Intel® E7210/6300ESB chipset to provide a  
powerful server/workstation platform solution.  
Supporting 800 MHz FSB, up to 4 GB of system memory with  
dual-channel PC3200/2700/2100 DDR SDRAM, high-resolution graphics  
through an onboard VGA, Serial ATA support, dual Gigabit LAN, PCI-X,  
and USB 2.0 interfaces, PSCH-SR is your perfect vehicle to get ahead in  
the world of power computing!  
Before you start installing the motherboard, and hardware devices on it,  
check the items in your package with the list below.  
1.2 Package contents  
Check your PSCH-SR package for the following items.  
PSCH-SR models  
Item Description  
IDE  
SATA  
SCSI  
ASUS PSCH-SR motherboard  
ASUS PSCH-SR support CD  
SATA cables  
2
6
3
2
1
SATA power cables  
SCSI cable  
1
4-in-1 IDE/FDD cable set  
I/O shield  
User guide  
Optional items:  
CPU heatsink and thermal plate  
Adaptec® Zero Channel RAID card  
Contact your retailer if any of the above items is damaged or missing.  
ASUS PSCH-SR motherboard user guide  
1-1  
1.3 Special features  
1.3.1 Product highlights  
Latest processor technology  
The motherboard supports the latest Intel® Pentium4 processor via a  
478-pin surface mount ZIF socket. The processor with 1 MB/512 KB L2  
cache includes a 800/533/400 MHz system bus and features the Intel  
Hyper-Threading Technology and new power design that allow up to  
3.4+ GHz core frequencies. The motherboard fully supports the new  
generation 90 nm Pentium® 4 processor.  
Dual-channel DDR400 memory support  
Employing the dual-channel DDR memory architecture, the motherboard  
provides a solution that doubles the system memory bandwidth to boost  
system performance. The motherboard supports up to 4 GB of system  
memory using PC3200/2700/2100 ECC or non-ECC DDR DIMMs to  
deliver up to 6.4 GB/s data transfer rate for various server applications.  
Serial ATA technology  
The motherboard supports the new Serial ATA technology through the  
SATA interfaces and the Intel® 6300ESB. The SATA specification allows for  
thinner, more flexible cables with lower pin count, reduced voltage  
requirement, and up to 150 MB/s data transfer rate. For Serial ATA  
models, the Adaptec® AIC-8110X chip supports four additional SATA  
connectors to give you six fully-compatible SATA interfaces. For IDE  
models, the Intel® 6300ESB ICH provides RAID 0 and RAID 1 solution for  
two Serial ATA interfaces using the Windows® XP operating system.  
Zero Channel RAID (ZCR) solution (optional on SATA and SCSI  
models only)  
The motherboard supports the optional Zero Channel RAID card in  
SODIMM package for a multi-RAID solution using Serial ATA150 hard disk  
drives or Ultra320 SCSI hard disk drives. The RAID 0 (striping), RAID 1  
(mirroring), RAID 0+1, and RAID 5 provide a cost-effective, reliable and  
high-performance server system.  
1-2  
Chapter 1: Product introduction  
Single-channel Ultra320 SCSI support (on SCSI models only)  
The Adaptec® AIC-7901X Ultra320 SCSI controller and single-channel  
SCSI connector are onboard to provide high-speed data transfers to and  
from SCSI hard disk drives.  
Integrated graphics  
The onboard ATI RageXL graphics controller with 8 MB memory  
provides a reliable solution for server applications.  
USB 2.0 technology  
The motherboard implements the Universal Serial Bus (USB) 2.0  
specification, dramatically increasing the connection speed from the  
12Mbps bandwidth on USB 1.1 to a fast 480 Mbps on USB 2.0. USB 2.0  
is backward compatible with USB 1.1.  
Dual Gigabit LAN solution  
The Intel® 82541GI and Intel® 82547GI Gigabit Ethernet controller allows  
full-duplex Gigabit performance on LAN on Motherboard (LOM)  
applications. Take the advantage of the Communication Streaming  
Architecture (CSA) with the Intel® 82547GI controller that connects to the  
dedicated CSA bus on the Memory Controller Hub (MCH). This reduces  
the PCI bottlenecks by freeing the PCI bus for other I/O operations. The  
Intel® 82541GI controller utilizes the PCI interface on the Southbridge to  
provide a faster and more efficient networking performance.  
Server management  
With the onboard Baseboard Management Connector (BMC) for the ASUS  
server management card, managing your server motherboard has never  
been this easy. ASUS server management cards fully conform to the  
IPMI1.5 or 2.0 versions.  
Chassis intrusion detection  
The motherboard supports chassis intrusion monitoring through the Winbond  
ASIC. A chassis intrusion event is retained in the CMOS for added protection.  
ASUS PSCH-SR motherboard user guide  
1-3  
1.3.2 ASUS unique features  
ASUS Q-Fan technology  
The ASUS Q-Fan technology smartly adjusts the fan speeds according to  
the system loading to ensure quiet, cool, and efficient operation.  
ASUS Update  
This utility allows you to update the motherboard BIOS through a user-  
friendly interface. Connect to the Internet then to the ASUS FTP site  
nearest you to obtain the latest BIOS version for your motherboard.  
1-4  
Chapter 1: Product introduction  
Chapter 2  
This chapter describes the hardware  
setup procedures that you have to  
perform when installing system  
components. It includes details on  
the switches, jumpers, and  
connectors on the motherboard.  
Hardware information  
Chapter summary  
2.1 Before you proceed ....................................... 2-1  
2.2 Motherboard installation ............................... 2-2  
2.3 Central Processing Unit (CPU) ..................... 2-7  
2.4 System memory ............................................2-11  
2.5 Expansion slots ........................................... 2-14  
2.6 Jumpers ........................................................ 2-17  
2.7 Connectors ................................................... 2-22  
ASUS PSCH-SR motherboard  
2.1 Before you proceed  
Take note of the following precautions before you install motherboard  
components or change any motherboard settings.  
1. Unplug the power cord from the wall socket before touching any  
component.  
2. Use a grounded wrist strap or touch a safely grounded object or to  
a metal object, such as the power supply case, before handling  
components to avoid damaging them due to static electricity.  
3. Hold components by the edges to avoid touching the ICs on them.  
4. Whenever you uninstall any component, place it on a grounded  
antistatic pad or in the bag that came with the component.  
5. Before you install or remove any component, ensure that the  
ATX power supply is switched off or the power cord is  
detached from the power supply. Failure to do so may cause  
severe damage to the motherboard, peripherals, and/or  
components.  
Power LED  
The motherboard has a green power LED (SB_PWR1). When lit, this LED  
indicates that the system is ON, in sleep mode, or in soft-off mode, a  
reminder that you should shut down the system and unplug the power  
cable before removing or plugging in any motherboard component.  
®
PSCH-SR  
SB_PWR1  
ON  
OFF  
Standby  
Power  
Powered  
Off  
PSCH-SR Onboard LED  
ASUS PSCH-SR motherboard  
2-1  
2.2 Motherboard installation  
Before you install the motherboard, study the configuration of your chassis  
to ensure that the motherboard fits into it.  
Make sure to unplug the power cord before installing or removing the  
motherboard. Failure to do so may cause you physical injury and  
damage motherboard components.  
2.2.1 Placement direction  
When installing the motherboard, make sure that you place it to the  
chassis in the correct orientation. The edge with external ports goes to the  
rear part of the chassis as indicated in the image below.  
2.2.2 Screw holes  
Secure the motherboard to the chassis with nine (9) screws on the holes  
indicated by the circles.  
Do not overtighten the screws! Doing so may damage the  
motherboard.  
Place this side towards  
the rear of the chassis  
2-2  
Chapter 2: Hardware information  
2.2.3 Motherboard layouts  
IDE model  
25cm (9.8in)  
PS/2KBMS  
T: Mouse  
B: Keyboard  
KBPWR1  
ATXPWR1  
PSUSMB1  
Intel  
82547GI  
Gigabit  
Ethernet  
USB2.0  
T: USB1  
B: USB2  
Top:  
LAN1  
Socket 478  
Intel®  
E7210  
MCH  
REAR_FAN1  
REAR_FAN2  
®
PSCH-SR  
CPU_FAN1  
CPU_FAN2  
ATX12V1  
DDR DIMM_A1 (64 bit,184-pin module)  
DDR DIMM_A2 (64 bit,184-pin module)  
LAN2  
LAN_LED1  
J6  
DDR DIMM_B1 (64 bit,184-pin module)  
DDR DIMM_B2 (64 bit,184-pin module)  
LAN_EN1  
LAN_EN2  
BUZZER1  
FRONT_FAN1  
CLRTC1  
SEC_IDE1  
SB_PWR1  
BAT1  
Intel  
82541GI  
Gigabit  
PCIX1 (64-bit, 66MHz 3V)  
Ethernet  
PRI_IDE1  
PCI2 (32-bit, 33MHz 5V)  
CHASSIS1  
SATA2  
SATA1  
ATI  
RAGE XL  
VGA  
Controller  
Intel®  
6300ESB  
ICH  
VGA_EN1  
SASI_EN1  
FRONT_FAN2  
PCI3 (32-bit, 33MHz 5V)  
LOCATOR1  
BPSMB1  
PANEL1 USB34  
FLOPPY1  
COM2  
FPSMB1  
J5  
J4  
The BMCSOCKET1 slot is reserved for a server management card.  
ASUS PSCH-SR motherboard  
2-3  
SATA model  
25cm (9.8in)  
PS/2KBMS  
KBPWR1  
ATXPWR1  
T: Mouse  
PSUSMB1  
B: Keyboard  
Intel  
82547GI  
Gigabit  
Ethernet  
USB2.0  
Top:  
T: USB1  
LAN1  
B: USB2  
Socket 478  
Intel®  
E7210  
MCH  
REAR_FAN1  
REAR_FAN2  
®
PSCH-SR  
CPU_FAN1  
CPU_FAN2  
ATX12V1  
DDR DIMM_A1 (64 bit,184-pin module)  
DDR DIMM_A2 (64 bit,184-pin module)  
LAN2  
LAN_LED1  
J6  
DDR DIMM_B1 (64 bit,184-pin module)  
DDR DIMM_B2 (64 bit,184-pin module)  
LAN_EN1  
LAN_EN2  
BUZZER1  
FRONT_FAN1  
CLRTC1  
SEC_IDE1  
SB_PWR1  
BAT1  
Intel  
82541GI  
Gigabit  
PCIX1 (64-bit, 66MHz 3V)  
Ethernet  
PRI_IDE1  
PCI2 (32-bit, 33MHz 5V)  
CHASSIS1  
SATA2  
SATA1  
J2  
Adaptec  
AIC-8110X  
ATI  
RAGE XL  
VGA  
Controller  
Intel®  
6300ESB  
ICH  
VGA_EN1  
FRONT_FAN2  
PCI3 (32-bit, 33MHz 5V)  
LOCATOR1  
BPSMB1  
FPSMB1  
PANEL1 USB34  
FLOPPY1  
COM2  
J5  
J4  
The BMCSOCKET1 slot is reserved for a server management card.  
2-4  
Chapter 2: Hardware information  
SCSI model  
25cm (9.8in)  
PS/2KBMS  
KBPWR1  
ATXPWR1  
T: Mouse  
PSUSMB1  
B: Keyboard  
Intel  
82547GI  
Gigabit  
Ethernet  
USB2.0  
Top:  
T: USB1  
LAN1  
B: USB2  
Socket 478  
Intel®  
E7210  
MCH  
REAR_FAN1  
REAR_FAN2  
®
PSCH-SR  
CPU_FAN1  
CPU_FAN2  
ATX12V1  
DDR DIMM_A1 (64 bit,184-pin module)  
DDR DIMM_A2 (64 bit,184-pin module)  
LAN2  
LAN_LED1  
J6  
DDR DIMM_B1 (64 bit,184-pin module)  
DDR DIMM_B2 (64 bit,184-pin module)  
LAN_EN1  
LAN_EN2  
BUZZER1  
FRONT_FAN1  
CLRTC1  
SEC_IDE1  
SB_PWR1  
BAT1  
Intel  
82541GI  
Gigabit  
PCIX1 (64-bit, 66MHz 3V)  
Ethernet  
PRI_IDE1  
PCI2 (32-bit, 33MHz 5V)  
CHASSIS1  
SATA2  
SATA1  
ATI  
RAGE XL  
VGA  
Controller  
Intel®  
6300ESB  
ICH  
Adaptec  
AIC-7901X  
VGA_EN1  
FRONT_FAN2  
SCSIA1  
PCI3 (32-bit, 33MHz 5V)  
LOCATOR1  
BPSMB1  
PANEL1 USB34  
34  
1
68  
35  
FLOPPY1  
COM2  
FPSMB1  
J5  
J4  
The BMCSOCKET1 slot is reserved for a server management card.  
ASUS PSCH-SR motherboard  
2-5  
2.2.4 Layout contents  
Slots  
Page  
1. DDR DIMM  
2. PCI  
2-11  
2-16  
Jumpers  
1. Keyboard power (3-pin KBPWR1)  
2-17  
2-17  
2-18  
2-18  
2-19  
2-20  
2-20  
2-21  
2-21  
2. Integrated LAN controllers (3-pin LAN_EN1; LAN_EN2)  
3. Integrated graphics controller (3-pin VGA_EN1)  
4. SATA/SCSI jumper controller (3-pin SASI_EN1)  
5. Clear RTC RAM (3-pin CLRTC1)  
6. Force BIOS recovery (3-pin J5)  
7. Hard disk drive/SCSI LED switch (4-pin J4)  
8. DDR voltage regulator (3-pin J6)  
9. Serial ROM initialization jumper (3-pin J2)  
Rear panel connectors  
1. PS/2 mouse port  
2. LAN1 port  
2-22  
2-22  
2-22  
2-22  
2-22  
2-2223  
2-22  
3. LAN2 port  
4. VGA port  
5. Serial port  
6. USB 2.0 ports 1 and 2  
7. PS/2 keyboard port  
Internal connectors  
1. Power supply unit SMBus connector (5-pin PSUSMB1)  
2. Front panel SMBus connector (6-1 pin FPSMB1 [white])  
3. Backplane SMBus connector (6-1 pin BPSMB1 [black])  
4. Chassis intrusion connector (4-1 pin CHASSIS1)  
2-23  
2-23  
2-24  
2-24  
5. IDE connectors (40-1 pin PRI_IDE1 [blue], SEC_IDE1 [black) 2-25  
6. Serial ATA connectors (7-pin SATA1, SATA2)  
7. Serial ATA RAID connectors (7-pin SATA_RAID1,  
SATA_RAID2, SATA_RAID3, SATA_RAID4)  
2-26  
2-27  
8. LAN LED connector (4-pin LAN_LED1)  
2-27  
2-28  
2-28  
2-29  
2-29  
2-30  
9. ATX power connectors (20-pin ATXPWR1, 4-pin ATX12V1)  
10. Floppy disk drive connector (34-1 pin FLOPPY1)  
11. Ultra320 SCSI connector (68-pin SCSIA1)  
12. Locator connector (6-pin LOCATOR)  
13. CPU, Front, and Rear Fan connectors  
(3-pin CPU_FAN1/2, FRONT_FAN1/2, REAR_FAN1/2)  
14. Serial connector (10-1 pin COM2 for management use)  
15. System panel connector (20-1 pin PANEL)  
2-30  
2-31  
2-6  
Chapter 2: Hardware information  
2.3 Central Processing Unit (CPU)  
2.3.1 Overview  
The motherboard comes with a surface mount 478-pin Zero Insertion  
Force (ZIF) socket. The socket is designed for the Intel® Pentium4  
processor in the 478-pin package with 1 MB/512 KB L2 cache.  
Gold Mark  
Take note of the marked corner (with gold  
triangle) on the CPU. This mark should match  
a specific corner of the CPU socket.  
2.3.2 Installing the CPU  
Follow these steps to install a CPU.  
1. Locate the 478-pin ZIF socket on the motherboard.  
ASUS PSCH-SR motherboard  
2-7  
90º ~ 100º angle  
2. Unlock the socket by pressing the  
lever sideways, then lift it up to a  
90°-100° angle.  
Socket Lever  
Make sure that the socket  
lever is lifted up to 90°-100°  
angle; otherwise, the CPU  
does not fit in completely.  
3. Position the CPU above the  
socket such that its marked  
corner matches the base of the  
socket lever.  
Gold Mark  
4. Carefully insert the CPU into the  
socket until it fits in place.  
The CPU fits only in one correct orientation. DO NOT force the CPU  
into the socket to prevent bending the pins and damaging the CPU!  
5. When the CPU is in place, push  
down the socket lever to secure  
the CPU. The lever clicks on the  
side tab to indicate that it is  
locked.  
After installation, make sure to plug-in the 4-pin ATX power cable to the  
motherboard.  
2-8  
Chapter 2: Hardware information  
2.3.3 Installing the optional CPU heatsink and  
thermal plate  
The passive CPU heatsink and a thermal plate is purchased  
separately. For optimum thermal solution, use the recommended CPU  
heatsink and thermal plate.  
CPU thermal plate  
This motherboard requires a thermal plate for the CPU. Place the thermal  
plate underneath the motherboard before you install the heatsink.  
Refer to the picture below for the correct matching of the motherboard and  
thermal plate holes.  
To install the CPU heatsink:  
1. Carefully place the heatsink on  
top of the installed CPU.  
ASUS PSCH-SR motherboard  
2-9  
2. Hold down the heatsink lightly  
and twist each of the four  
screws with a Philips (cross)  
screwdriver just enough to  
attach the heatsink to the  
motherboard.  
3. When the four screws are  
attached, tighten them one by  
one to completely secure the  
heatsink.  
Do not overtighten the screws to avoid damaging the motherboard.  
2-10  
Chapter 2: Hardware information  
2.4 System memory  
2.4.1 Overview  
The motherboard comes with four Double Data Rate (DDR) Dual Inline  
Memory Module (DIMM) sockets.  
The following figure illustrates the location of the sockets.  
104 Pins  
80 Pins  
®
PSCH-SR  
DIMM_A1  
DIMM_A2  
DIMM_B1  
DIMM_B2  
PSCH-SR 184-Pin DDR DIMM Sockets  
2.4.2 Memory configurations  
You may install 64 MB, 128 MB, 256 MB, 512 MB, and 1GB DDR DIMMs  
into the DIMM sockets using the memory configurations in this section.  
Important notes on memory configurations  
Installing DDR DIMMs other than the recommended configurations  
may cause memory sizing error or system boot failure. Use any of  
the recommended configurations in Table 1.  
Use the blue DIMM slots first.  
In Dual-channel configurations, install only identical (the same type  
and size) DDR DIMM pairs for each channel.  
Always install DIMMs with the same CAS latency, otherwise, the  
system may run in a lower frequency. For optimum compatibility, it  
is recommended that you obtain memory modules from the same  
vendor.  
When all four sockets are populated with 1 GB DIMMs (total 4 GB),  
the system may detect only 3583 MB due to the Southbridge  
resource allocation.  
Three DDR DIMMs installed into any three memory sockets will  
function in single channel mode.  
Make sure that the memory frequency matches the CPU FSB.  
Refer to Table 2 for configurations.  
ASUS PSCH-SR motherboard  
2-11  
Table 1: Recommended memory configurations  
Sockets  
Mode/DIMM Type  
DIMM_A1 DIMM_A2 DIMM_B1 DIMM_B2  
(blue)  
(black)  
(blue)  
(black)  
Single-channel  
(1)  
(2)  
(3)  
(4)  
(1)  
(2)  
(3)*  
Populated  
Populated  
(DDR400/DDR333/  
DDR266)  
Populated  
Populated  
Dual-channel  
Populated  
Populated  
Populated  
Populated  
Populated  
(DDR400/DDR333/  
DDR266)  
Populated  
Populated Populated  
* For dual-channel configuration (3), you may:  
install identical DIMMs in all four sockets or  
install identical DIMM pair in DIMM_A1 and DIMM_B1 (blue sockets)  
and identical DIMM pair in DIMM_A2 and DIMM_B2 (black sockets)  
Table 2: Memory frequency/CPU FSB synchronization  
CPU FSB  
DDR DIMM Type  
Memory Frequency  
800 MHz  
PC3200/PC2700*/PC2100  
400/333*/266 MHz  
533 MHz  
400 MHz  
PC2700/PC2100  
PC2100  
333/266 MHz  
266 MHz  
*When using 800MHz CPU FSB, PC2700 DDR DIMMs may run only at  
320MHz (not 333MHz) due to the Southbridge resource allocation.  
2-12  
Chapter 2: Hardware information  
2.4.3 Installing a DIMM  
Make sure to unplug the power supply before adding or removing  
DIMMs or other system components. Failure to do so may cause  
severe damage to both the motherboard and the components.  
DDR DIMM notch  
Follow these steps to install a DIMM.  
1. Unlock a DIMM socket by  
pressing the retaining clips  
outward.  
2. Align a DIMM on the socket such  
that the notch on the DIMM  
Unlocked  
Retaining Clip  
matches the break on the socket.  
A DDR DIMM is keyed with a  
notch so that it fits in only one  
direction. DO NOT force a  
DIMM into a socket to avoid  
damaging the DIMM.  
3. Firmly insert the DIMM into the  
socket until the retaining clips  
snap back in place and the DIMM  
is properly seated.  
Locked  
Retaining Clip  
2.4.4 Removing a DIMM  
Follow these steps to remove a DIMM.  
1. Simultaneously press the retaining  
clips outward to unlock the DIMM.  
Support the DIMM lightly with  
your fingers when pressing  
the retaining clips. The DIMM  
might get damaged when it  
flips out with extra force.  
2. Remove the DIMM from the socket.  
ASUS PSCH-SR motherboard  
2-13  
2.5 Expansion slots  
In the future, you may need to install expansion cards. The motherboard  
has one 64-bit PCI-X slot and two 32-bit PCI slots. The following  
sub-sections describe the slots and the expansion cards that they support.  
Make sure to unplug the power cord before adding or removing  
expansion cards. Failure to do so may cause you physical injury and  
damage motherboard components.  
2.5.1 Installing an expansion card  
Follow these steps to install an expansion card.  
1. Before installing the expansion card, read the documentation that  
came with it and make the necessary hardware settings for the card.  
2. Remove the system unit cover (if your motherboard is already installed  
in a chassis).  
3. Remove the bracket opposite the slot that you intend to use. Keep the  
screw for later use.  
4. Align the card connector with the slot and press firmly until the card is  
completely seated on the slot.  
5. Secure the card to the chassis with the screw you removed earlier.  
6. Replace the system cover.  
2.5.2 Configuring an expansion card  
After installing the expansion card, configure it by adjusting the software  
settings.  
1. Turn on the system and change the necessary BIOS settings, if any.  
See Chapter 4 for information on BIOS setup.  
2. Assign an IRQ to the card. Refer to the tables on the next page.  
3. Install the software drivers for the expansion card.  
2-14  
Chapter 2: Hardware information  
Standard Interrupt Assignments  
IRQ  
Priority  
Standard Function  
0
1
System Timer  
1
2
Keyboard Controller  
2
N/A  
11  
12  
13  
14  
15  
3
4
5
6
7
Programmable Interrupt  
Communications Port (COM2)  
Communications Port (COM1)  
Sound Card (sometimes LPT2)  
Floppy Disk Controller  
3*  
4*  
5*  
6
7*  
8
9*  
10*  
11*  
12*  
13  
14*  
15*  
Printer Port (LPT1)  
System CMOS/Real Time Clock  
ACPI Mode when used  
IRQ Holder for PCI Steering  
IRQ Holder for PCI Steering  
PS/2 Compatible Mouse Port  
Numeric Data Processor  
Primary IDE Channel  
8
9
10  
Secondary IDE Channel  
*
These IRQs are usually available for ISA or PCI devices.  
IRQ assignments for this motherboard  
A
B
C
D
E
F
G
H
PXIRQ0 PXIRQ1 PXIRQ2 PXIRQ3  
PCIX 1  
shared shared shared shared  
PCI slot 2  
shared shared shared shared  
shared shared shared shared  
PCI slot 3  
Onboard Gigabit LAN  
Onboard VGA controller  
BMC mini-PCI slot  
Zero Channel RAID slot*  
SODIMM RAID controller*  
used  
shared  
shared  
shared  
shared  
* On SATA and SCSI models only.  
When using PCI cards on shared slots, ensure that the drivers support  
Share IRQor that the cards do not need IRQ assignments.  
Otherwise, conflicts will arise between the two PCI groups, making the  
system unstable and the card inoperable.  
ASUS PSCH-SR motherboard  
2-15  
2.5.3 PCI slots  
The PCI slots support PCI cards such as a LAN card, SCSI card, USB  
card, and other cards that comply with PCI specifications.  
When installing long PCI cards, it is recommended that you install  
them in the PCIX1 and PCI3 slots. Long PCI cards installed in the  
PCI2 slot may interfere with the SATA connectors.  
2-16  
Chapter 2: Hardware information  
2.6 Jumpers  
1. Keyboard power (3-pin KBPWR1)  
This jumper allows you to enable or disable the keyboard wake-up  
feature. Set this jumper to pins 2-3 (+5VSB) if you wish to wake up the  
computer when you press a key on the keyboard. This feature requires  
an ATX power supply that can supply at least 1A on the +5VSB lead,  
and a corresponding setting in the BIOS. Refer to Chapter 4 for more  
information.  
KBPWR1  
®
PSCH-SR  
1 2  
2 3  
+5V  
+5VSB  
(Default)  
PSCH-SR Keyboard Power Setting  
2. Integrated LAN controllers (3-pin LAN_EN1; LAN_EN2)  
This jumper allows you enable or disable the onboard LAN controllers.  
The LAN_EN1 jumper is for the LAN1 port controlled by the Intel®  
82547GI LAN controller while the LAN_EN2 jumper is for the LAN2  
port controlled by the Intel® 82541GI LAN controller.  
®
PSCH-SR  
LAN_EN1 for 82547GI controller  
LAN_EN2 for 82541GI controller  
1 2  
2 3  
Enable  
(Default)  
Disable  
PSCH-SR LAN Controller Jumper  
ASUS PSCH-SR motherboard  
2-17  
3. Integrated graphics controller (3-pin VGA_EN1)  
This jumper allows you enable or disable the onboard graphics  
controller.  
®
PSCH-SR  
VGA_EN1  
1 2  
2 3  
Enable  
(Default)  
Disable  
PSCH-SR VGA Setting  
4. SATA/SCSI controller jumper (3-pin SASI_EN1)  
This jumper allows you enable or disable the SATA controller (on SATA  
models) or the SCSI controller (on SCSI models).  
®
PSCH-SR  
SASI_EN1  
1
2
2
3
Enable  
(Default)  
Disable  
PSCH-SR SASI_EN Setting  
2-18  
Chapter 2: Hardware information  
5. Clear RTC RAM (3-pin CLRTC1)  
This jumper allows you to clear the Real Time Clock (RTC) RAM in  
CMOS. The RAM data in CMOS, that include system setup information  
such as system date, time, and system setup parameters, and  
passwords, is powered by the onboard button cell battery.  
To erase the RTC RAM:  
1. Turn OFF the computer and unplug the power cord.  
2. Remove the onboard battery.  
3. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap  
on pins 2-3 for about 5~10 seconds, then move the cap back to pins  
1-2.  
4. Re-install the battery.  
5. Plug the power cord and turn ON the computer.  
6. Hold down the <Del> key during the boot process and enter BIOS  
setup to re-enter data.  
®
PSCH-SR  
CLRTC1  
1 2  
2 3  
Normal  
(Default)  
Clear CMOS  
PSCH-SR Clear RTC RAM  
Except when clearing the RTC RAM, never remove the cap on CLRTC  
jumper default position. Removing the cap will cause system boot  
failure!  
ASUS PSCH-SR motherboard  
2-19  
6. Force BIOS recovery (3-pin J5)  
This jumper allows you to update or recover the BIOS settings when it  
gets corrupted or destroyed.  
®
PSCH-SR  
J5  
1 2  
2 3  
Normal  
Force BIOS Recovery  
(Default)  
PSCH-SR Force BIOS Recovery Setting  
This jumper allows you to update/recover the BIOS quickly.  
To update the BIOS:  
1. Prepare a floppy disk that contains the latest BIOS for the motherboard  
(xxxx-xxx.BIN) and the AWDFLASH.EXE utility.  
2. Set the jumper to pins 2-3.  
3. Insert the floppy disk, then turn on the system to update the BIOS.  
4. Shut down the system.  
5. Set the jumper back to pins 1-2.  
6. Turn on the system.  
7. Hard disk drive/SCSI LED switch (4-pin J4)  
This jumper allows you to enable or disable the front panel hard disk  
drive or SCSI LED. The HD/SCSI LED is enabled when no jumper cap  
is placed over the pins.  
®
PSCH-SR  
J4  
1
HD/SCSI LED Enable  
PSCH-SR J4 Jumper  
2-20  
Chapter 2: Hardware information  
8. DDR voltage regulator (3-pin J6)  
This jumper allows you adjust the DDR voltage to +5% or -5%. The  
DDR voltage is at its normal level when no jumper cap is placed over  
the pins.  
®
PSCH-SR  
J6  
1
1-2 Adjust to -5%  
2-3 Adjust to +5%  
PSCH-SR DDR Voltage Switching Regulator  
Observe caution when adjusting the DDR voltage.  
9. Serial ROM initialization jumper (3-pin J2) SATA models only.  
This jumper allows you to enable or disable the serial ROM for Serial  
ATA devices.  
®
PSCH-SR  
J2  
1
2
2
3
Enable  
(Default)  
Disable  
PSCH-SR SATA Setting  
ASUS PSCH-SR motherboard  
2-21  
2.7 Connectors  
2.7.1 Rear panel connectors  
1
2
7
6
5
4
3
1. PS/2 mouse port. This green 6-pin connector is for a PS/2 mouse.  
2. LAN1 port. This port allows Gigabit connection to a Local Area  
Network (LAN) through a network hub. This port is controlled by the  
Intel® 82547GI LAN controller. Refer to the table below for the LAN port  
LED indications.  
3. RJ-45 port. This port allows Gigabit connection to a Local Area  
Network (LAN) through a network hub. This port is controlled by the  
Intel® 82541GI LAN controller. Refer to the table below for the RJ-45  
port LED indications. Refer to the table below for the LAN port LED  
indications.  
ACT/LINK LED  
Status Description  
OFF  
SPEED LED  
Description  
RJ45  
Status  
OFF  
ACT/LNK  
SPEED  
No link  
Linked  
Acting  
10Mbps connection  
100Mbps connection  
1Gbps connection  
GREEN  
ORANGE  
GREEN  
BLINKING  
4. VGA port. This port connects a VGA display device.  
5. Serial port. This 9-pin COM1 port is for pointing devices or other serial  
devices.  
6. USB 2.0 ports 1 and 2. These 4-pin Universal Serial Bus (USB) ports  
are available for connecting USB 2.0 devices.  
7. PS/2 keyboard port. This purple connector is for a PS/2 keyboard.  
2-22  
Chapter 2: Hardware information  
2.7.2 Internal connectors  
1. Power supply unit SMBus connector (5-pin PSUSMB1)  
This connector allows you to connect SMBus (System Management  
Bus) devices to the power supply unit. Devices communicate with an  
SMBus host and/or other SMBus devices using the SMBus interface.  
PSUSMB1  
®
PSCH-SR  
PSCH-SR Power Supply SMBus Header  
Not all power supply units have SMBus connector for server  
management.  
2. Front panel SMBus connector (6-1 pin FPSMB1 [white])  
This connector allows you to connect SMBus (System Management  
Bus) devices to system front panel components. Devices communicate  
with an SMBus host and/or other SMBus devices using the SMBus  
interface.  
®
PSCH-SR  
FPSMB1  
1
PSCH-SR Front Panel SMBus Connector  
ASUS PSCH-SR motherboard  
2-23  
3. Backplane SMBus connector (6-1 pin BPSMB1 [black])  
This connector allows you to connect SMBus (System Management  
Bus) devices to system backplane components such as SATA or SCSI  
backplanes. Devices communicate with an SMBus host and/or other  
SMBus devices using the SMBus interface.  
®
PSCH-SR  
BPSMB1  
1
PSCH-SR Backplane SMBus Header  
4. Chassis intrusion connector (4-1 pin CHASSIS1)  
This lead is for a chassis designed with intrusion detection feature.  
This requires an external detection mechanism such as a chassis  
intrusion sensor or microswitch. When you remove any chassis  
component, the sensor triggers and sends a high-level signal to this  
lead to record a chassis intrusion event.  
By default, the pins labeled Chassis Signaland Groundare shorted  
with a jumper cap. If you wish to use the chassis intrusion detection  
feature, remove the jumper cap from the pins.  
®
CHASSIS1  
PSCH-SR  
(Default)  
PSCH-SR Chassis Intrusion Connector  
2-24  
Chapter 2: Hardware information  
5. IDE connectors (40-1 pin PRI_IDE1 [blue], SEC_IDE1 [black)  
This connector supports the provided UltraATA100 IDE hard disk  
ribbon cable. Connect the cables blue connector to the primary  
(recommended) or secondary IDE connector, then connect the gray  
connector to the UltraATA100 slave device and the black connector to  
the UltraATA100 master device. It is recommended that you connect  
non-UltraATA100 devices to the secondary IDE connector. If you install  
two hard disks, you must configure the second drive as a slave device  
by setting its jumper accordingly. Refer to the hard disk documentation  
for the jumper settings. BIOS supports specific device bootup. You may  
configure two hard disks to be both master devices with two ribbon  
cables one for the primary IDE connector and another for the  
secondary IDE connector.  
Pin 20 on each IDE connector is removed to match the covered  
hole on the UltraATA cable connector. This prevents incorrect  
orientation when you connect the cables.  
The hole near the blue connector on the UltraATA100 cable is  
intentional.  
For UltraATA IDE devices, use the 80-conductor IDE cable.  
®
PSCH-SR  
SEC_IDE1  
PIN 1  
PRI_IDE1  
PIN 1  
NOTE: Orient the red markings  
(usually zigzag) on the IDE  
ribbon cable to PIN 1.  
PSCH-SR IDE Connectors  
ASUS PSCH-SR motherboard  
2-25  
6. Serial ATA connectors (7-pin SATA1, SATA2)  
These next generation connectors support the thin Serial ATA cables  
for Serial ATA hard disks. The current Serial ATA interface allows up to  
150MB/s data transfer rate, faster than the standard parallel ATA with  
133MB/s (Ultra ATA/133).  
If you installed Serial ATA hard disk drives and Windows® XP operating  
system, you can create a RAID 0 or RAID 1 configuration using the  
Adaptec HostRAID technology embedded in the Intel® 6300ESB.  
SATA2  
®
PSCH-SR  
SATA1  
PSCH-SR SATA Connectors  
Important notes on Serial ATA  
In a legacy operating system (DOS) environment, using the Serial  
ATA connectors will disable the Southbridge support to one of the  
IDE channels (either primary or secondary channel).  
The Serial ATA RAID feature (RAID 0 and RAID 1) is only available  
under Windows® XP.  
2-26  
Chapter 2: Hardware information  
7. Serial ATA RAID connectors (7-pin SATA_RAID1, SATA_RAID2,  
SATA_RAID3, SATA_RAID4)  
The Serial ATA RAID connectors are available on SATA models only.  
These Serial ATA connectors support SATA hard disks that you can  
configure as a RAID set. Through the onboard Adaptec® AIC-8110X  
RAID controller, you may create a RAID0, RAID1, RAID0+1, or  
multi-RAID configuration.  
®
SATA_RAID4  
PSCH-SR  
SATA_RAID3  
SATA_RAID2  
SATA_RAID1  
GND  
RSATA_TXP1  
RSATA_TXN1  
GND  
RSATA_RXN1  
RSATA_RXP1  
GND  
PSCH-SR SATA RAID Connectors  
If you wish to create a RAID set, make sure that you have  
connected the SATA cable and installed Serial ATA hard disk  
drives. You cannot enter the SATARaidutility and SATA BIOS  
setup during POST if there are no connected Serial ATA HDDs.  
The Adaptec® AIC-8110X RAID controller does not support ATAPI  
devices such as CD-ROMs, DVD-ROMs, etc.  
8. LAN LED connector (4-pin LAN_LED1)  
This connector is for the LAN activity LEDs in the system front panel.  
®
LAN_LED1  
PSCH-SR  
PSCH-SR LANLED Connector  
ASUS PSCH-SR motherboard  
2-27  
9. ATX power connectors (20-pin ATXPWR1, 4-pin ATX12V1)  
These connectors connect to an ATX 12 V power supply. The plugs  
from the power supply are designed to fit these connectors in only one  
orientation. Find the proper orientation and push down firmly until the  
connectors completely fit.  
In addition to the 20-pin ATXPWR1 connector, connect the 4-pin ATX  
+12V power plug to provide sufficient power to the CPU.  
1. Do not forget to connect the 4-pin ATX +12V power plug.  
Otherwise, the system does not boot up.  
2. Make sure that your ATX 12 V power supply can provide 8A on the  
+12V lead and at least 1A on the +5-volt standby lead (+5VSB).  
The minimum recommended wattage is 300W. The system may  
become unstable or may not boot up if the power is inadequate.  
ATXPWR1  
ATX12V1  
®
+12V DC  
GND  
+12V DC  
GND  
PSCH-SR  
Pin 1  
PSCH-SR ATX Power Connectors  
10. Floppy disk drive connector (34-1 pin FLOPPY1)  
This connector supports the provided floppy drive ribbon cable. After  
connecting one end to the motherboard, connect the other end to the  
floppy disk drive. (Pin 5 is removed to prevent incorrect insertion when  
using FDD cables with a closed pin 5 hole).  
®
PSCH-SR  
FLOPPY1  
PIN 1  
NOTE: Orient the red markings on  
the floppy ribbon cable to PIN 1.  
PSCH-SR Floppy Disk Drive Connector  
Chapter 2: Hardware information  
2-28  
11. Ultra320 SCSI connector (68-pin SCSIA1)  
The Ultra320 SCSI connector is available on SCSI models only.  
This single channel Ultra320 SCSI connector supports SCSI hard disk  
drives that you may configure as a RAID set through the onboard  
Adaptec® 7901 SCSI controller. The channel can support a maximum  
of 15 devices as specified by Ultra320 SCSI standards.  
®
PSCH-SR  
SCSIA1  
68-Pin Ultra320 SCSI Connector  
34  
68  
1
35  
PSCH-SR Onboard SCSI Connector  
If you wish to create a SCSI RAID set, make sure that you have  
connected the SCSI cable and installed SCSI devices.  
12. Locator connector (6-pin LOCATOR)  
This connector controls the locator LEDs in the system front or rear  
panel. By default, this connector comes without a jumper.  
®
PSCH-SR  
LOCATOR  
PSCH-SR LOCATOR Connector  
ASUS PSCH-SR motherboard  
2-29  
13. CPU, Front, and Rear fan connectors  
(3-pin CPU_FAN1/2, FRONT_FAN1/2, REAR_FAN1/2)  
The fan connectors on this motherboard support various server  
configurations. Use the rear fan connectors if you intend to install the  
motherboard in a tower/pedestal chassis. Use the front fan connectors  
when using a rackmount configuration.  
The fan connectors support cooling fans of 350 mA ~ 740 mA (8.88 W  
max.) or a total of 1 A ~ 2.22 A (26.64 W max.) at +12 V. Connect the  
fan cables to the fan connectors on the motherboard, making sure that  
the black wire of each cable matches the ground pin of the connector.  
Speed  
REAR_FAN1  
REAR_FAN2  
Power  
GND  
®
PSCH-SR  
CPU_FAN1  
CPU_FAN2  
FRONT_FAN1  
Speed  
Power  
GND  
FRONT_FAN2  
PSCH-SR Fan Connectors  
Do not forget to connect the fan cables to the fan connectors. Lack of  
sufficient air flow within the system may damage the motherboard  
components. These are not jumpers! DO NOT place jumper caps on  
the fan connectors!  
14. Serial connector (10-1 pin COM2 for management use)  
This connector accommodates a server management card using the  
serial interface.  
®
PSCH-SR  
COM2  
PIN 1  
PSCH-SR Serial COM2 Bracket  
Since this connector is dedicated for server management, you must  
use a null modem cable to make the connector operational.  
2-30  
Chapter 2: Hardware information  
15. System panel connector (20-1 pin PANEL)  
This connector accommodates several system front panel functions.  
®
PSCH-SR  
PANEL1  
PSCH-SR System Panel Connector  
System Power LED (3-pin PLED)  
This connector is for the system power LED. The LED lights up when  
you turn on the system power, and blinks when the system is in sleep  
mode.  
Message LED (2-pin MLED)  
This connector is for the front panel message LED that indicates the  
booting status. The LED blinks when the system is in the boot process  
until the operating system is loaded.  
System Warning Speaker (4-pin SPKR)  
This connector is for the case-mounted speaker and allows you to hear  
system beeps and warnings.  
Hard Disk Activity (2-pin HD_LED)  
This connects to the hard disk drive LED. The read or write activities of  
the hard disk drive connected to the any of IDE connectors cause the  
hard disk drive LED to light up.  
ATX Power Switch/Soft-Off Switch (2-pin PWR_SW)  
This connector is for the system power switch. Pressing the power  
switch turns the system between ON and SLEEP, or ON and SOFT  
OFF, depending on the BIOS or OS settings. Pressing the power  
switch for more than 4 seconds when the system is on turns the  
system off.  
Reset Switch (2-pin RESET)  
This connector is for the case-mounted reset switch for rebooting the  
system without turning off the system power.  
ASUS PSCH-SR motherboard  
2-31  
2-32  
Chapter 2: Hardware information  
Chapter 3  
This chapter describes the power up  
sequence and gives information on the  
BIOS beep codes.  
Powering up  
Chapter summary  
3.1 Starting up for the first time.......................... 3-1  
3.2 Powering off the computer ........................... 3-2  
ASUS PSCH-SR motherboard  
3.1 Starting up for the first time  
1. After making all the connections, replace the system case cover.  
2. Be sure that all switches are off.  
3. Connect the power cord to the power connector at the back of the system  
chassis.  
4. Connect the power cord to a power outlet that is equipped with a surge  
protector.  
5. Turn on the devices in the following order:  
a. Monitor  
b. External SCSI devices (starting with the last device on the chain)*  
c. System power  
* SCSI models only  
6. After applying power, the power LED on the system front panel case lights  
up. For ATX power supplies, the system LED lights up when you press the  
ATX power switch. If your monitor complies with greenstandards or if it  
has a power standbyfeature, the monitor LED may light up or switch  
between orange and green after the system LED turns on. The system  
then runs the power-on tests. While the tests are running, the BIOS beeps  
(see BIOS beep codes table below) or additional messages appear on  
the screen. If you do not see anything within 30 seconds from the time you  
turned on the power, the system may have failed a power-on test. Check  
the jumper settings and connections or call your retailer for assistance.  
Award BIOS beep codes  
Beep  
Meaning  
One short beep when  
displaying logo  
No error during POST  
Long beeps in an endless loop  
No DRAM installed or detected  
One long beep followed by  
three short beeps  
Video card not found or video card  
memory bad  
High frequency beeps when  
system is working  
CPU overheated;  
System running at a lower frequency  
7. At power on, hold down <Delete> to enter BIOS Setup. Follow the  
instructions in Chapter 4.  
ASUS PSCH-SR motherboard  
3-1  
3.2 Powering off the computer  
3.2.1 Using the OS shut down function  
If you are using Windows® 2000 Professional or Windows® 2000 Server:  
1. Click the Start button then click Shut Down...  
2. Make sure that the Shut down option button is selected, then click the  
OK button to shut down the computer.  
3. The power supply should turn off after Windows® shuts down.  
If you are using Windows® XP or Windows® Server 2003:  
1. Click the Start button then select Turn Off Computer.  
2. Click the Turn Off button to shut down the computer.  
3. The power supply should turn off after Windows® shuts down.  
3.2.2 Using the dual function power switch  
While the system is ON, pressing the power switch for less than 4 seconds  
puts the system to sleep mode or to soft-off mode, depending on the BIOS  
setting. Pressing the power switch for more than 4 seconds lets the  
system enter the soft-off mode regardless of the BIOS setting. See section  
4.5 Power Menuin Chapter 4.  
3-2  
Chapter 3: Powering up  
Chapter 4  
This chapter tells how to change  
system settings through the BIOS  
Setup Menus. Detailed descriptions  
of the BIOS parameters are also  
provided.  
BIOS information  
Chapter summary  
4.1 Managing and updating your BIOS .............. 4-1  
4.2 BIOS Setup program...................................... 4-6  
4.3 Main menu ...................................................... 4-9  
4.4 Advanced menu ........................................... 4-14  
4.5 Power menu.................................................. 4-27  
4.6 Boot menu .................................................... 4-33  
4.7 Exit menu ...................................................... 4-39  
ASUS PSCH-SR motherboard  
4.1 Managing and updating your BIOS  
The original BIOS file for this motherboard is in the support CD.  
Copy the original BIOS to a bootable floppy disk in case you  
need to restore the BIOS in the future.  
4.1.1 Creating a bootable floppy disk  
1. Do either one of the following to create a bootable floppy disk.  
DOS environment  
Insert a 1.44 MB floppy disk into the drive. At the DOS prompt,  
type: format a: /s, then press the <Enter> key.  
Windows® XP environment  
a. Insert a new 1.44 MB floppy disk in the floppy disk drive.  
b. From the Windows desktop, click Start > My Computer.  
c. In the My Computer window, click the 3 1/2 Floppy icon.  
d. From the Menu bar, click File > Format.  
e. Select Create an MS-DOS Startup Diskin the Format Options  
field, then click Start.  
2. Copy the original (or the latest) motherboard BIOS to the bootable  
floppy disk.  
ASUS PSCH-SR motherboard  
4-1  
4.1.2 Updating the BIOS  
The Basic Input/Output System (BIOS) can be updated using the  
AwardBIOS Flash Utility. Follow these instructions to update the BIOS  
using this utility.  
1. Download the latest BIOS file from the ASUS web site. Rename the file  
to *.BIN and save it to a floppy disk.  
Save only the updated BIOS file in the floppy disk to avoid loading the  
wrong BIOS file.  
2. Copy the AwardBIOS Flash Utility (awdflash.exe) from the Software  
folder of the support CD to the floppy disk with the latest BIOS file.  
3. Boot the system in DOS mode using the bootable floppy disk you  
created earlier.  
4. When the A:>appears, replace the bootable floppy disk with the  
floppy disk containing the new BIOS file and the Award BIOS Flash  
Utility.  
5. At the prompt, type awdflashthen press <Enter>. The Award BIOS  
Flash Utility screen appears.  
AwardBIOS Flash Utility for ASUS V1.01  
(C) Phoenix Technologies Ltd. All Rights Reserved  
For Canterwood - PSCHSR-IDE  
DATE: 05/16/2004  
Flash Type - SST 49LF004A/B /3.3V  
File Name to Program :  
Message: Please input File Name!  
4-2  
Chapter 4: BIOS Setup  
6. Type the BIOS file name in the File Name to Program field, then  
press <Enter>.  
AwardBIOS Flash Utility for ASUS V1.01  
(C) Phoenix Technologies Ltd. All Rights Reserved  
For Canterwood - PSCHSR-IDE  
DATE: 05/16/2004  
Flash Type - SST 49LF004A/B /3.3V  
File Name to Program : 1001.bin  
Message: Do You Want To Save BIOS (Y/N)  
7. The utility prompts you to save the current BIOS file. Press <Y> to  
save the current BIOS file to the floppy disk, or <N> to continue.  
If you intend to save the current BIOS file, make sure that the floppy  
disk has enough disk space to save the file. See the next section for  
details on saving the current BIOS file.  
8. The utility verifies the BIOS file in the floppy disk and starts flashing the  
BIOS file.  
AwardBIOS Flash Utility for ASUS V1.01  
(C) Phoenix Technologies Ltd. All Rights Reserved  
For Canterwood - PSCHSR-IDE  
DATE: 05/16/2004  
Flash Type - SST 49LF004A/B /3.3V  
File Name to Program : 1001.bin  
Program Flashing Memory - 0FE00 OK  
Write OK  
No Update  
Write Fail  
Warning: Don’t Turn Off Power Or Reset System!  
Do not turn off or reset the system during the flashing process!  
ASUS PSCH-SR motherboard  
4-3  
9. The utility displays a Flashing Complete message indicating that you  
have successfully flashed the BIOS file. Press <F1> to restart the  
system.  
AwardBIOS Flash Utility for ASUS V1.01  
(C) Phoenix Technologies Ltd. All Rights Reserved  
For Canterwood - PSCHSR-IDE  
DATE: 05/16/2004  
Flash Type - SST 49LF004A/B /3.3V  
File Name to Program : 1001.bin  
Flashing Complete  
Press <F1> to Continue  
Write OK  
F1 Reset  
No Update  
Write Fail  
4.1.3 Saving the current BIOS file  
You can use the AwardBIOS Flash Utility to save the current BIOS file. You  
can load the current BIOS file when the BIOS file gets corrupted during the  
flashing process.  
To save the current BIOS file using the AwardBIOS Flash Utility:  
1. Follow steps 1 to 6 of the previous section.  
2. Press <Y> when the utility prompts you to save the current BIOS file.  
The following screen appears.  
AwardBIOS Flash Utility for ASUS V1.01  
(C) Phoenix Technologies Ltd. All Rights Reserved  
For Canterwood - PSCHSR-IDE  
DATE: 05/16/2004  
Flash Type - SST 49LF004A/B /3.3V  
File Name to Program : 1001.bin  
Save current BIOS as :  
Message:  
4-4  
Chapter 4: BIOS Setup  
3. Type a filename for the current BIOS file in the Save current BIOS as  
field, then press <Enter>.  
AwardBIOS Flash Utility for ASUS V1.01  
(C) Phoenix Technologies Ltd. All Rights Reserved  
For Canterwood - PSCHSR-IDE  
DATE: 05/16/2004  
Flash Type - SST 49LF004A/B /3.3V  
File Name to Program : 1001.bin  
Checksum : DAD6H  
Save current BIOS as : old.bin  
Message: Please Wait!  
4. The utility saves the current BIOS file to the floppy disk, then returns to  
the BIOS flashing process.  
AwardBIOS Flash Utility for ASUS V1.01  
(C) Phoenix Technologies Ltd. All Rights Reserved  
For Canterwood - PSCHSR-IDE  
DATE: 05/16/2004  
Flash Type - SST 49LF004A/B /3.3V  
File Name to Program : 1001.bin  
Now Backup System BIOS to  
File!  
Message: Please Wait!Reset  
ASUS PSCH-SR motherboard  
4-5  
4.2 BIOS Setup program  
This motherboard includes a Flash ROM that you can update using the  
provided utility described in section 4.1 Managing and updating your  
BIOS.”  
Use the BIOS Setup program when you are installing a motherboard,  
reconfiguring your system, or prompted to Run Setup. This section  
explains how to configure your system using this utility.  
Even if you are not prompted to use the Setup program, you may want to  
change the configuration of your computer in the future. For example, you  
may want to enable the security password feature or make changes to the  
power management settings. This requires you to reconfigure your system  
using the BIOS Setup program so that the computer can recognize these  
changes and record them in the CMOS RAM of the Flash ROM.  
The Flash ROM on the motherboard stores the Setup utility. When you  
start up the computer, the system provides you with the opportunity to run  
this program. Press <Delete> during the Power-On Self Test (POST) to  
enter the Setup utility, otherwise, POST continues with its test routines.  
If you wish to enter Setup after POST, restart the system by pressing  
<Ctrl> + <Alt> + <Delete>, or by pressing the reset button on the system  
chassis. You can also restart by turning the system off and then back on.  
Do this last option only if the first two failed.  
The Setup program is designed to make it as easy to use as possible. It is  
a menu-driven program, which means you can scroll through the various  
sub-menus and make your selections among the predetermined choices.  
Because the BIOS software is constantly being updated, the following  
BIOS setup screens and descriptions are for reference purposes only,  
and may not exactly match what you see on your screen.  
4-6  
Chapter 4: BIOS Setup  
4.2.1 BIOS menu screen  
Menu bar Menu items  
General help  
Select Menu  
System Time (hh:mm:ss)  
System Date (mm:dd:yy)  
11: 10 : 30  
Wed, Mar 24 2004  
Item Specific Help  
Legacy Diskette A  
[1.44M, 3.5 in.]  
Change the day, month,  
year and century.  
Primary IDE Master  
Primary IDE Slave  
Secondary IDE Master  
Secondary IDE Slave  
[None]  
[None]  
[None]  
[None]  
Base Memory  
Extended Memory  
Total Memory  
640K  
261120K  
26114K  
Navigation keys  
Field settings  
4.2.2 Menu bar  
The menu bar on top of the screen has the following main items:  
Main  
For changing the basic system configuration settings  
For changing the advanced system settings  
Advanced  
Power  
Boot  
For changing the power configuration settings  
For changing the system boot configuration settings  
For selecting the exit options and loading default settings  
Exit  
To select the menu bar items, press the right or left arrow key on the  
keyboard until the desired item is highlighted.  
ASUS PSCH-SR motherboard  
4-7  
4.2.3 Navigation keys  
At the bottom of a menu screen are the navigation keys for that particular  
menu. Use the navigation keys to select items in the menu and change the  
settings.  
The navigation keys differ from one screen to another.  
4.2.4 General help  
On the right side of the menu screen is a brief description of the selected  
item.  
4.2.5 Sub-menu  
An item with a sub-menu on any menu screen is distinguished by a solid  
triangle before the item. To display the sub-menu, select the item and  
press <Enter>.  
4.2.6 Scroll bar  
A scroll bar appears on the right side of a menu screen when there are  
items that do not fit on the screen. Press Up/Down arrow keys or  
PageUp/PageDown keys to display the other items on the screen.  
4.2.7 Pop-up window  
Select an item in the menu, then press <Enter> to display a pop-up  
window with the configuration options for that item.  
4-8  
Chapter 4: BIOS Setup  
4.3 Main menu  
When you enter the BIOS Setup program, the Main menu screen appears  
giving you an overview of the basic system information.  
Refer to section 4.2.1 BIOS menu screenfor information on the  
menu screen items and how to navigate through them.  
Select Menu  
System Time (hh:mm:ss)  
System Date (mm:dd:yy)  
11: 10 : 30  
Wed, Mar 24 2004  
Item Specific Help  
Legacy Diskette A  
[1.44M, 3.5 in.]  
Change the day, month,  
year and century.  
Primary IDE Master  
Primary IDE Slave  
Secondary IDE Master  
Secondary IDE Slave  
[None]  
[None]  
[None]  
[None]  
Base Memory  
Extended Memory  
Total Memory  
640K  
261120K  
26114K  
System Time (hh:mm:ss)  
Sets the system to the time that you specify (usually the current time). The  
format is hour:minute:second. Valid values for hour, minute, and second  
are Hour: (00 to 23), Minute: (00 to 59), Second: (00 to 59). Use the <Tab>  
key to move between the hour, minute, and second fields.  
System Date (mm:dd:yy)  
Sets the system to the date that you specify (usually the current date). The  
format is month:day:year. Valid values for month, day, and year are Month:  
(1 to 12), Day: (1 to 31), Year: (1999 to 2099). Use the <Tab> key to move  
between the month, day, and year fields.  
Legacy Diskette A [1.44M, 3.5 in.]  
Sets the type of floppy drive installed. Configuration options: [None]  
[360K, 5.25 in.] [1.2M , 5.25 in.] [720K , 3.5 in.] [1.44M, 3.5 in.] [2.88M, 3.5 in.]  
Base/Extended/Total Memory [xxxK]  
The base memory, extended memory, and total memory values are  
auto-detected. These fields are not user-configurable.  
ASUS PSCH-SR motherboard  
4-9  
4.3.1 Primary IDE Master  
Primary Master  
Select Menu  
Item Specific Help  
Auto-Detection  
[Press Enter]  
To auto-detect the  
HDDs size, head...on  
this channel.  
Primary IDE Master  
Access Mode  
[Auto]  
[Auto]  
Capacity  
0 MB  
Cylinder  
Head  
Precomp  
0
0
0
Landing Zone  
Sector  
PIO Mode  
UDMA Mode  
Transfer Mode  
S.M.A.R.T Status  
0
0
[Auto]  
[Auto]  
None  
None  
Auto-Detection [Press Enter]  
Press <Enter> to automatically detect an IDE drive, if the drive is not yet  
detected. Upon pressing <Enter>, the message Detecting Hard Drive...”  
appears as the BIOS attempts to detect the presence of a IDE drive.  
Primary IDE Master [Auto]  
Select [Auto] to automatically detect an IDE drive. If automatic detection is  
successful, the setup BIOS automatically fills in the correct values for the  
remaining fields on this sub-menu.  
If automatic detection fails, this may be because the IDE drive is too old or  
too new. If the drive was already formatted on a previous system, the  
BIOS may detect incorrect parameters. In these cases, select [Manual] to  
manually enter the IDE drive parameters. Refer to the section Manually  
detecting an IDE drive.”  
If no drive is installed or if you are removing a drive and not replacing it,  
select [None]. Configuration options: [None] [Auto] [Manual]  
The IDE drive information items are grayed out when this item is set to  
[Auto].  
Access Mode [Auto]  
Allows selection of the sector addressing mode. The default [Auto] allows  
automatic detection of an IDE drive. Set this item to [CHS] if the Primary  
IDE Master item is set to [Manual] so you can manually enter the drive  
values. Configuration options: [CHS] [LBA] [Large] [Auto]  
4-10  
Chapter 4: BIOS Setup  
PIO Mode [Auto]  
Sets the PIO mode for the IDE drive. The settings Mode 0 to 4 allow  
successive increase in performance. Configuration options: [Auto]  
[Mode 0] [Mode 1] [Mode 2] [Mode 3] [Mode 4]  
UDMA Mode [Auto]  
When this item is set to [Auto], the UDMA capability allows improved  
transfer speeds and data integrity for supported IDE drives. Configuration  
options: [Disabled] [Auto]  
Manually detecting an IDE drive  
If you wish to manually enter the drive information, set the Primary IDE  
Master item to [Manual], and the Access Mode item to [CHS].  
Primary Master  
Select Menu  
Item Specific Help  
Auto-Detection  
[Press Enter]  
Selects the type of  
fixed disk connected  
to the system.  
Primary IDE Master  
Access Mode  
[Manual]  
[CHS]  
[Manual] lets you  
select the number of  
cylinders, heads, etc.  
Note: PRECOMP=65535  
means NONE.  
Capacity  
0 MB  
Cylinder  
Head  
Precomp  
0
0
0
Landing Zone  
Sector  
PIO Mode  
UDMA Mode  
Transfer Mode  
S.M.A.R.T. Status  
0
0
[Auto]  
[Auto]  
None  
None  
Before attempting to manually configure an IDE drive, make sure that  
you have the correct configuration information supplied by the drive  
manufacturer. Incorrect settings may cause the system to fail to  
recognize the installed IDE drive!  
To manually enter the number of cylinder, head, precomp, landing zone,  
and sector per track for the drive, highlight an item, key-in the value that  
you obtained from the drive documentation, then press <Enter>. Refer to  
the drive documentation or the drive label for this information.  
ASUS PSCH-SR motherboard  
4-11  
To enter a value, you may also highlight the item, then press <Enter> to  
display a pop-up menu. Type in the value from the drive documentation,  
then press <Enter>.  
Capacity [xxxxx MB]  
Displays the auto-detected hard disk capacity. The value is not user-  
configurable.  
Cylinder  
Shows the number of the hard disk cylinders.  
Head  
Shows the number of the hard disk read/write heads.  
Precomp  
Displays the precompressed volumes on the hard disk, if any, on the  
motherboard.  
Landing Zone  
Displays the drives maximum usable capacity as calculated by the BIOS  
based on the drive information you entered.  
Sector  
Shows the number of sectors per track.  
Transfer Mode  
Shows the data transfer mode if the IDE hard disk drive supports the  
feature. Otherwise, this item is grayed out and shows the value [None].  
S.M.A.R.T. Status  
Shows the Smart Monitoring, Analysis, and Reporting Technology  
(S.M.A.R.T.) status if the IDE hard disk drive supports the feature.  
Otherwise, this item is grayed out and shows the value [None].  
After entering the IDE hard disk drive information, use a disk utility,  
such as FDISK, to partition and format new IDE drives. This is  
necessary so that you can write or read data from the hard disk. Make  
sure to set the partition of the Primary IDE hard disk drive to Active.”  
4-12  
Chapter 4: BIOS Setup  
4.3.2 Primary IDE Slave  
When configuring a drive as Primary IDE Slave, refer to section 4.3.1  
Primary IDE Masterfor the menu item descriptions.  
4.3.3 Secondary IDE Master  
When configuring a drive as Secondary IDE Master, refer to section 4.3.1  
Primary IDE Masterfor the menu item descriptions.  
4.3.4 Secondary IDE Slave  
When configuring a drive as Secondary IDE Slave, refer to section 4.3.1  
Primary IDE Masterfor the menu item descriptions.  
ASUS PSCH-SR motherboard  
4-13  
4.4 Advanced menu  
The Advanced menu items allow you to change the settings for the CPU,  
memory, chipset, and other system devices.  
Take caution when changing the settings of the Advanced menu items.  
Incorrect field values may cause the system to malfunction!  
Select Menu  
Advanced BIOS Features  
CPU Configuration  
Memory Configuration  
Item Specific Help  
Chipset  
Virus Protection, Boot  
Onboard Device  
Sequence...  
PCIPnP  
USB Configuration  
4-14  
Chapter 4: BIOS Setup  
4.4.1 Advanced BIOS Features  
This menu shows the console redirection and agent information. Select an  
item then press <Enter> to display a pop-up menu with the configuration  
options.  
Select Menu  
Advanced BIOS Features  
Console Redirection [Disabled]  
Item Specific Help  
Baud Rate  
Agent Address  
Agent after boot  
19200  
[Auto]  
[Disabled]  
Enabled - Attempt to  
redirect console via  
COM port.  
Disabled - Attempt to  
redirect console when  
keyboard is absent.  
Console Redirection [Disabled]  
This item allows you to redirect the console through the serial port. when  
set to [Enabled], the Baud Rate option is activated.  
Configuration options: [Disabled] [Enabled]  
Baud Rate [19200]  
This item appears only when the Console Redirection option is set to  
[Enabled]. This parameter allows you to set the Baud rate of the console  
redirection to the serial port. Configuration options: [9600] [19200] [38400]  
[57600] [115200]  
Agent Address [Auto]  
This option allows you to delect the agent adress.  
Configuration options: [3F8h] [2F8h] [3E8h] [2E8h] [Auto]  
Agent after boot [Disabled]  
This option allows you to enable or disable the agent after boot-up.  
Configuration options: [Disabled] [Enabled]  
ASUS PSCH-SR motherboard  
4-15  
4.4.2 CPU Configuration  
This menu shows the CPU configuration settings. Select an item then  
press <Enter> to display a pop-up menu with the configuration options.  
CPU Configuration  
Select Menu  
Item Specific Help  
CPU L1 & L2 Cache  
CPU Feature  
[Enabled]  
[Press Enter]  
Disable/Enable CPU L1/  
L2 cache.  
CPU L1 & L2 Cache [Enabled]  
Allows you to enable or disable the CPU L1 and L2 cache. Configuration  
options: [Disabled] [Enabled]  
CPU Feature  
The CPU Feature window displays the thermal management and monitor  
feature of this motherboard.  
CPU Configuration  
Thermal Management Thermal Monitor 1  
Select Menu  
Item Specific Help  
The Thermal Management item is not user-configurable  
4-16  
Chapter 4: BIOS Setup  
4.4.3 Memory Configuration  
This menu shows the memory configuration settings. Select an item then  
press <Enter> to display a pop-up menu with the configuration options.  
Memory Configuration  
[Auto]  
Select Menu  
Item Specific Help  
Set DRAM Frequency.  
DRAM Frequency  
Memory Timing Selectable  
Cache Latency Time  
[By SPD]  
2.5  
Active to Precharge Delay  
DRAM RAS# to CAS# Delay  
DRAM RAS# Precharge  
7
3
3
Memory Parity Check  
Enabled  
DRAM Frequency [Auto]  
This item sets the DRAM operating frequency. Configuration options:  
[DDR266] [DDR333] [Auto]  
Memory Timing Selectable [By SPD]  
The DRAM clock are set according to the DRAM SPD (Serial Presence  
Detect). Select [By SPD] for automatic DRAM clock detection. Select  
[Manual] to allow setting the succeeding memory items to optimal timings.  
Configuration options: [Manual] [By SPD]  
The items CAS Latency Time, Active to Precharge Delay, DRAM RAS#  
to CAS# Delay, and DRAM RAS# Precharge are configurable only  
when the Memory Timing Selectable item is set to [Manual].  
CAS Latency Time [2.5]  
This item sets the latency (in clocks) between the DRAM read command  
and the time the data actually becomes available. Configuration options:  
[2] [2.5] [3]  
Active to Precharge Delay [7]  
This item controls the number of DRAM clocks used for DRAM  
parameters. Configuration options: [8] [7] [6] [5]  
ASUS PSCH-SR motherboard  
4-17  
DRAM RAS# to CAS# Delay [3]  
Controls the latency between the DRAM active command and the read/  
write command. Configuration options: [4] [3] [2]  
DRAM RAS# Precharge [3]  
This item controls the idle clocks after issuing a precharge command to  
the DDR SDRAM. Configuration options: [4] [3] [2]  
Memory Parity Check [Enabled]  
Allows memory parity checking option. This item is not user-configurable  
and set to [Enabled] by default.  
4.4.4 Chipset  
This menu shows the chipset configuration settings. Select an item then  
press <Enter> to display a sub-menu with additional items, or show a pop-  
up menu with the configuration options.  
Chipset  
Frequency/Voltage Control  
System BIOS Cacheable  
Video BIOS Cacheable  
Init Display First  
Auto Detect PCI Clk  
Spread Spectrum  
Select Menu  
Item Specific Help  
[Enabled]  
Press <Enter> to set.  
[Disabled]  
[PCI VGA Card]  
[Enabled]  
[+/- 0.35%]  
System BIOS Cacheable [Enabled]  
Allows you to enable or disable the cache function of the system BIOS.  
Configuration options: [Disabled] [Enabled]  
Video BIOS Cacheable [Disabled]  
Allows you to enable or disable the cache function of the video BIOS.  
Setting to [Enabled] improves the display speed by caching the display  
data. Configuration options: [Disabled] [Enabled]  
4-18  
Chapter 4: BIOS Setup  
Init Display First [PCI VGA Card]  
Allows you to select the graphics controller to use as primary boot device.  
Configuration options: [PCI VGA Card] [AGP Slot]  
Auto Detect PCI Clk [Enabled]  
Allows you to select the maximum PCI bus speed to be porgrammed.  
Configuration options: [Enabled] [Disabled]  
Spread Spectrum [+/- 0.35%]  
Allows you to select the clock generator spread sprectrum.  
Configuration options: [Disabled] [+/-0.35%] [+/- 0.50%] [+/- 0.75%]  
[+/- 1.00%]  
Frequency/Voltage Control  
Frequency/Voltage Control  
Select Menu  
Item Specific Help  
Set CPU Frequency.  
CPU Host/3V66/PCI Clock  
CPU Clock Ratio  
[Default]  
[x25]  
CPU Host/3V66/PCI Clock [Default]  
Allows you to set the CPU, AGP, and PCI frequencies.  
Configuration options: [Default] [100/66/33MHz] [105/70/35MHz]  
[110/73/36MHz] [115/77/38MHz] [133/66/33MHz] [140/70/35MHz]  
[147/73/37MHz] [153/77/38MHz] [200/66/33MHz] [210/70/35MHz]  
[220/73/37MHz] [230/77/38MHz]  
CPU Clock Ratio [x25]  
This option allows you to set the ratio between the CPU core clock and the  
front side bus frequency. Highlight this item then press <Enter> to display  
a pop-up menu. Type in the value then press <Enter>.  
Configuration options: [Min = 16; Max = 25]  
ASUS PSCH-SR motherboard  
4-19  
4.4.5 Onboard Device  
This menu shows the onboard device configuration settings. Select an  
item then press <Enter> to display a sub-menu with additional items, or  
show a pop-up menu with the configuration options.  
Onboard Device  
Select Menu  
Item Specific Help  
H/W Jumper of CSA LAN  
Enabled  
[Disabled]  
Enabled  
Onboard CSA LAN Boot ROM  
H/W Jumper of ONB LAN  
Onboard LAN Boot ROM  
Super I/O Device  
Enable/Disable Onboard  
AC97 audio.  
[Disabled]  
SATA Configuration  
H/W Jumper of CSA LAN [Enabled]  
This option tells whether the CSA LAN jumper labeled LAN_EN1 on the  
motherboard is enabled or disabled. See section 2.6 Jumpersfor details.  
Onboard CSA LAN Boot ROM [Disabled]  
Allows you to enable or disable the onboard CSA LAN boot ROM.  
Configuration options: [Disabled] [Enabled]  
H/W Jumper of ONB LAN [Enabled]  
This option tells whether the onboard LAN jumper labeled LAN_EN2 on  
the motherboard is enabled or disabled. See section 2.6 Jumpersfor  
details.  
Onboard LAN Boot ROM [Disabled]  
Allows you to enable or disable the onboard LAN boot ROM.  
Configuration options: [Disabled] [Enabled]  
4-20  
Chapter 4: BIOS Setup  
Super I/O Device  
SuperIO Device  
Select Menu  
Item Specific Help  
Serial Port1 Address  
[3F8/IRQ4]  
[2F8/IRQ3]  
[378/IRQ7]  
[SPP]  
Serial Port2 Address  
Onboard Parallel Port  
Parallel Port Mode  
EPP Mode Select  
Set Base I/O address  
for serial port 1.  
EPP1.7  
ECP Mode Use DMA  
3
Serial Port 1 [3F8/IRQ4]  
Serial Port 2 [2F8/IRQ3]  
Allow you to select the serial port base addresses. Configuration options:  
[Disabled] [3F8/IRQ4] [2F8/IRQ3] [3E8/IRQ4] [2E8/IRQ3] [Auto]  
Onboard Parallel Port [378/IRQ7]  
Allows you to select the parellel port base address.  
Configuration options: [Disabled] [378/IRQ7] [278/IRG5] [3BC/IRQ7]  
Parallel Port Mode [SPP]  
Allows you to select the parallel port mode.  
Configuration options: [SPP] [EPP] [ECP] [ECP+EPP] [Normal]  
EPP Mode Select [EPP1.7]  
Allows you to select the EPP mode. This item becomes configurable only if  
the Parallel Port Mode is set to [EPP] or [ECP+EPP].|  
Configuration options: [EPP 1.7] [EPP 1.9]  
ECP Mode Use DMA [3]  
Allows you to select the ECP mode. This item becomes configurable only  
if the Parallel Port Mode is set to [ECP] or [ECP+EPP].  
Configuration options: [1] [3]  
ASUS PSCH-SR motherboard  
4-21  
SATA Configuration  
SATA Configuration  
*** On-Chip Serial ATA Setting ***  
Select Menu  
Item Specific Help  
On-Chip Serial ATA  
SATA Mode  
Serial ATA Port0 Mode  
Serial ATA Port1 Mode  
[Disabled]  
IDE  
SATA0 master  
SATA1 master  
[Disabled]: Disable  
SATA Controller.  
[Auto]: Auto-arrange  
the BIOS.  
[Combined Mode]: PATA  
and SATA are combined.  
Max. of 2 IDE drives  
on each channel.  
[Enhanced Mode]:  
Enable both SATA and  
PATA. Max. of 6 IDE  
drives are supported.  
[SATA Only]: SATA is  
opeating in legacy  
mode.  
***On-Chip Serial ATA Setting***  
The SATA Mode and Serial ATA Port0 Mode items are configurable  
only when the On-Chip Serial ATA item is set to [ Combined Mode]  
[Enhanced Mode] or [SATA Only].  
On-chip Serial ATA [Disabled]  
This item allows you to configure your serial ATA devices, if present.  
Configuration options: [Disabled] [Auto] [Combined Mode] [Enhanced  
Mode] [SATA Only]  
a. Setting to [Auto] allows BIOS to automatically configure the SATA  
devices.  
b. Setting to [Combined Mode] allows you to install parallel ATA and  
serial ATA devices at the same time. You may install two IDE devices  
on any of the parallel ATA channels, and one IDE device on each  
serial ATA channel for a maximum of four devices. Use ths option  
when you installed a legacy operating system like MS-DOS, Windows  
ME/98/NT4.0.  
c. Setting to [Enhanced Mode] allows you to install parallel ATA and  
serial ATA devices at the same time, with a maximum of six IDE  
devices on each channel. Use ths option when you installed a native  
operating system like Windows 2000/XP.  
d. Setting to [SATA Only] allows you to install IDE devices on the Serial  
ATA channels only.  
4-22  
Chapter 4: BIOS Setup  
e. Setting to [Disabled] disables the onboard SATA controller. The RAID  
feature is also disabled.  
SATA Mode [IDE]  
When set to [RAID], this item allows configuration of the installed IDE  
devices into a disk array. Refer to the software installation guide for  
details on RAID configuration. Configuration options: [IDE] [RAID]  
Serial ATA Port0 Mode [SATA0 Master]  
Serial ATA Port1 Mode [SATA1 Master]  
Allow you to set the SATA Port0 and Serial ATA Port1 modes. The options  
for these items vary depending on the setting of the On-Chip Serial ATA  
item. Configuration options: [Primary Master] [Secondary Master]  
[SATA0 master] SATA1 master]  
ASUS PSCH-SR motherboard  
4-23  
4.4.6 PCIPnP  
This menu shows the PCIPnP configuration settings. Select an item then  
press <Enter> to display a pop-up menu with the configuration options.  
PCIPnP  
Reset Configuration Data  
Select Menu  
Item Specific Help  
[Disabled]  
[Auto]  
Default is Disabled.  
Select Enabled to  
Resources Controlled By  
IRQ Resources  
reset Extended System  
Configuration Data  
(ESCD) upon exiting  
Setup, if you  
installed a new add-on  
card and the system  
cannot boot due to a  
serious conflict in  
system configuration.  
PCI/VGA Pallete Snoop  
INT Pin 1 Assignment  
INT Pin 2 Assignment  
INT Pin 3 Assignment  
INT Pin 4 Assignment  
INT Pin 5 Assignment  
INT Pin 6 Assignment  
INT Pin 7 Assignment  
INT Pin 8 Assignment  
[Disabled]  
[Auto]  
[Auto]  
[Auto]  
[Auto]  
[Auto]  
[Auto]  
[Auto]  
[Auto]  
Reset Configuration Data [Disabled]  
Allows you to enable or disabled resetting of the Extended System  
Configuration Data (ESCD) when you exit the Setup. The ESCD includes  
information on non-PnP devices. Set this item to [Enabled] if you installed  
an expansion card that conflicts with other devices and cause system boot  
failure. Configuration options: [Disabled] [Enabled]  
Resources Controlled By [Auto]  
When set to [Auto(ESCD)], allows BIOS to automatically configure of all  
boot and Plug and Play devices. When set to [Manual], you can assign the  
available IRQ Resources to the PCI devices.  
Configuration options: [Auto] [Manual]  
When the item Resources Controlled By is set to [Auto], the item IRQ  
Resources is grayed out and not user-configurable. Refer to the  
section IRQ Resourcesfor information on how to enable this item.  
PCI/VGA Pallete Snoop [Disabled]  
Some non-standard VGA cards, like graphics accelerators or MPEG video  
cards, may not show colors properly. Setting this field to [Enabled] corrects  
this problem. If you are using a standard VGA card, leave this field to the  
default setting [Disabled]. Configuration options: [Disabled] [Enabled]  
4-24  
Chapter 4: BIOS Setup  
INT Pin 1~8 Assignment [Auto]  
Allows you to select the appropriate interrupt to the specific devices to  
avoid conflict. Configuration options: [Auto] [3] [4] [5] [7] [9] [10] [11] [12]  
[14] [15]  
IRQ Resources  
Set the item Resources Controlled By is set to [Manual] to enable the  
item IRQ Resources and assign the interrupts depending on the type  
of installed PCI device.  
PCIPnP  
Reset Configuration Data  
Select Menu  
Item Specific Help  
[Disabled]  
[Manual]  
When resources are  
controlled manually,  
assign each system  
interrupt a type  
depending on the type  
of device using the  
interrupt.  
Resources Controlled By  
IRQ Resources  
PCI/VGA Pallete Snoop  
INT Pin 1 Assignment  
INT Pin 2 Assignment  
INT Pin 3 Assignment  
INT Pin 4 Assignment  
[Disabled]  
[Auto]  
[Auto]  
[Auto]  
[Auto]  
IRQ Resources  
Select Menu  
Item Specific Help  
IRQ-3 assigned to  
IRQ-4 assigned to  
IRQ-5 assigned to  
IRQ-7 assigned to  
IRQ-9 assigned to  
IRQ-10 assigned to  
IRQ-11 assigned to  
IRQ-12 assigned to  
IRQ-14 assigned to  
IRQ-15 assigned to  
[PCI Device]  
[PCI Device]  
[PCI Device]  
[PCI Device]  
[PCI Device]  
[PCI Device]  
[PCI Device]  
[PCI Device]  
[PCI Device]  
[PCI Device]  
Legacy ISA for devices  
compliant with the  
original PC AT bus  
specification, PCI/ISA  
PnP for devices  
compliant with the  
Plug and Play standard  
whether designed for  
PCI or ISa bus  
architecture.  
IRQ-xx assigned to [PCI device]  
The IRQ Resources sub-menu is activated when the Resources Controlled  
by parameter is set to [Manual]. Select [PCI Device] to assign an IRQ  
address to a Plug and Play device. Setting to [Reserved] reserves the IRQ  
address.Configuration options: [PCI Device] [Reserved]  
ASUS PSCH-SR motherboard  
4-25  
4.4.7 USB Configuration  
This menu shows the USB configuration settings. Select an item then  
press <Enter> to display a pop-up menu with the configuration options.  
USB Configuration  
[Enabled]  
Select Menu  
Item Specific Help  
USB Controller  
USB 2.0 Support  
[Enabled]  
[Enabled]  
Configures the USB  
controller.  
USB Legacy Mode Support  
USB Controller [Enabled]  
Allows you enable or disable the USB controller.  
Configuration options: [Disabled] [Enabled]  
USB 2.0 Support [Enabled]  
Allows you to enable or disable the EHCI controller. Setting this item to  
[Enabled] allows the built-in high speed USB support in the BIOS to turn  
on automatically when you install high speed USB devices.  
Configuration options: [Disabled] [Enabled]  
USB Legacy Mode Support [Enabled]  
Allows you enable or disable support for the legacy USB devices.  
Configuration options: [Disabled] [Enabled]  
4-26  
Chapter 4: BIOS Setup  
4.5 Power menu  
The Power menu items allow you to change the settings for the Advanced  
Power Management (APM). Select an item then press <Enter> to display  
the configuration options.  
Select Menu  
ACPI APIC Support  
APM Configuration  
Hardware Configuration  
[Enabled]  
Item Specific Help  
Enable/Disable ACPI  
support for Operating  
System.  
ACPI APIC Support [Enabled]  
Allows you to enable or disable the ACPI feature on the operating system.  
Configuration options: [Disabled] [Enabled]  
4.5.1 APM Configuration  
This menu shows the Advanced Power Management (APM) configuration  
settings. Select an item then press <Enter> to display a pop-up menu with  
the configuration options.  
APM Configuration  
Select Menu  
Power Management  
HDD Power Down  
Suspend Mode  
Suspend Type  
Restore on AC Power Loss  
Video Off Method  
Video Off In Suspend  
MODEM Use IRQ  
[User Define]  
[Disabled]  
[Disabled]  
[Stop Grant]  
[Power Off]  
[DPMS]  
Item Specific Help  
This field allows you  
to set the automatic  
power saving features.  
[Yes]  
[3]  
Soft-Off by PWR-BTN  
Power On By PCI Devices  
[Instant-Off]  
[Enabled]  
Power On By External Modem [Enabled]  
POWER ON Function  
KB Power On Password  
Hot Key Power ON  
Resume By Alarm  
Date (of Month) Alarm  
Time (hh:mm:ss) Alarm  
[Button Only]  
Enter  
Ctrl-F1  
[Disabled]  
0
0 : 0 : 0  
ASUS PSCH-SR motherboard  
4-27  
Power Management [User Define]  
Allows you to set the automatic power saving features. Configuration  
options: [User Define] [Min. Saving] [Max. Saving]  
HDD Power Down [Disabled]  
Shuts down any IDE hard disk drives in the system after a period of  
inactivity as set in this user-configurable field. This feature does not affect  
SCSI hard drives. Configuration options: [Disabled] [1 Min] ... [15 Min]  
Suspend Mode [Disabled]  
Sets the time period before the system goes into suspend mode.  
Configuration options: [Disabled] [1 Min] [2 Min] [4 Min] [8 Min] [12 Min]  
[20 Min] [30 Min] [40 Min] [1 Hr]  
Suspend Type [Stop Grant]  
Allows you to select the suspend type. Configuration options: [Stop Grant]  
[PwrOn Suspend]  
Restore on AC Power Loss [Power Off]  
When set to [Power Off], the system goes into off stateafter an AC  
power interruption. When set to [Power On], the system turns on  
automatically after an power interruption. When set to [Last State], the  
system goes into whatever was the system state (on or off) before the  
power interruption. Configuration options: [Power Off] [Power On] [Last  
State]  
Video Off Method [DPMS]  
This item determines the video off features. The Display Power  
Management System (DPMS) feature allows the BIOS to control the video  
display card if it supports the DPMS feature. [Blank Screen] only blanks  
the screen. Use this for monitors without power management or green”  
features. Configuration options: [Blank Screen] [V/H SYNC+Blank] [DPMS]  
Video Off In Suspend [Yes]  
This item determines when to activate the video off feature for monitor  
power management. Configuration options: [Yes] [No]  
MODEM Use IRQ [3]  
Allows you to select the IRQ assignment for the modem. Configuration  
options: [NA] [3] [4] [5] [7] [9] [10] [11]  
4-28  
Chapter 4: BIOS Setup  
Soft-Off by PWR-BTN [Instant-Off]  
When set to [Instant-Off], the system goes to soft off when you press the  
power button for less than 4 seconds. When set to [Delay 4 Sec], press  
the power button for more than 4 seconds to power off the system.  
Configuration options: [Instant-Off] [Delay 4 Sec.]  
Power On By PCI Devices [Enabled]  
Allows you to enable or disable the PME to generate a wake-up event.  
Configuration options: [Disabled] [Enabled]  
Power On By External Modem [Enabled]  
Allows you to enable or disable system power up when the external  
modem receives a call while in soft-off mode.  
Configuration options: [Disabled] [Enabled]  
Power On Function [BUTTON ONLY]  
Allows you to select a device to turn the system power on. Configuration  
options: [Password] [Hot Key] [Mouse Left] [Mouse Right] [Any KEY]  
[BUTTON ONLY] [PS/2 Mouse]  
KB Power On Password [Enter]  
Allows you to set a password to turn the system power on. Highlight this  
item then press enter to set a password.  
To configure this item, you should set the Power On Function item to  
[Password].  
Hot Key Power On [Ctrl-F1]  
Allows you to set a hot key combination to turn the system power on.  
Configuration options: [Ctrl-F1] ... [Ctrl-F12]  
To configure this item, you should set the Power On Function item to  
[Hot Key].  
Resume by Alarm [Disabled]  
Allows you to enable or disable RTC to generate a wake event. When this  
item is enabled, you can set the date and time of alarm using the two  
following items. Configuration options: [Disabled] [Enabled]  
ASUS PSCH-SR motherboard  
4-29  
Date (of Month) Alarm [0]  
To set the date of alarm, highlight this item and press <Enter> to display a  
pop-up menu. Key-in a value within the specified range then press  
<Enter>. Configuration options: [Min=0] [Max=31]  
Time (hh:mm:ss) Alarm [0 : 0 : 0]  
To set the time of alarm:  
1. Highlight this item and press <Enter> to display a pop-up menu for the  
hour field.  
2. Key-in a value (Min=0, Max=23), then press <Enter>.  
3. Press tab to move to the minutes field, then press <Enter>.  
4. Key-in a minute value (Min=0, Max=59), then press <Enter>.  
5. Press tab to move to the seconds field, then press <Enter>.  
6. Key-in a value (Min=0, Max=59), then press <Enter>.  
4-30  
Chapter 4: BIOS Setup  
4.5.2 Hardware Monitor  
This menu shows the hardware monitoring status. Select an item then  
press <Enter> to display a pop-up menu with the configuration options.  
Hardware Monitor  
Select Menu  
Voltage Monitor  
Item Specific Help  
Smart Q-Fan Configuration  
CPU Temperature  
M/B Front Temperature  
M/B Rear Temperature  
45oC/113oF  
29oC/ 84oF  
36oC/ 96oF  
5152 RPM  
0 RPM  
Press <Enter> to view.  
CPU  
CPU  
Fan1 Speed  
Fan2 Speed  
Front Fan1 Speed  
Front Fan2 Speed  
Rear Fan1 Speed  
Rear Fan2 Speed  
0 RPM  
0 RPM  
0 RPM  
0 RPM  
Voltage Monitor  
Voltage Monitor  
Select Menu  
CPU VCORE A  
1.48V  
3.26V  
11.79V  
1.49V  
2.47V  
4.99V  
4.75V  
3.10V  
Item Specific Help  
+3.3V Voltage  
+12V Voltage  
+1.5V Voltage  
+2.5V Voltage  
+5VCC Voltage  
+5VSB Voltage  
VBAT Voltage  
CPU VCORE A, +3.3V Voltage, +12V Voltage, +1.5V Voltage, +2.5V  
Voltage, +5VCC Voltage, +5VSB Voltage,VBAT Voltage,  
These fields show the auto-detected voltages through the onboard voltage  
regulators.  
ASUS PSCH-SR motherboard  
4-31  
Smart Q-Fan Configuration  
Smart Q-Fan Configuration  
Select Menu  
Smart Fan1 Temperature  
Fan1 Tolerance Value  
Smart Fan2 Temperature  
Fan2 Tolerance Value  
Smart Fan3 Temperature  
Fan3 Tolerance Value  
[40oC/104oF]  
[ 5]  
Item Specific Help  
[40oC/104oF]  
[ 5]  
Automatically adjusts  
CPU fan speeds  
according to system  
temperature.  
[40oC/104oF]  
[ 5]  
Smart Fan1 Temperature [40oC/104oF]  
Smart Fan2 Temperature [40oC/104oF]  
Smart Fan3 Temperature [40oC/104oF]  
Allows automatic chassis, CPU, HDD, or power suppy fan speed  
adjustment according to the system temperature.  
Configuration options: [Disabled] [30oC/86oF] [35oC/95oF] [40oC/104oF]  
Fan1 Tolerance Value [ 5]  
Fan2 Tolerance Value [ 5]  
Fan3 Tolerance Value [ 5]  
Allows you to set the smart chassis, CPU, HDD, or power supply fan  
speed detection range. Configuration options: [Min = 1] [Max = 5]  
4-32  
Chapter 4: BIOS Setup  
4.6 Boot menu  
The Boot menu items allow you to change the system boot settings. Select  
an item then press <Enter> to display a sub-menu with additional items, or  
show a pop-up menu with the configuration options.  
Select Menu  
Boot Device Priority  
Item Specific Help  
Hard Disk Boot Priority  
Removable Device Priority  
CD-ROM Boot Priority  
Boot Settings Configuration  
Security  
4.6.1 Boot Device Priority  
Boot Device Priority  
1st Boot Device [Removable]  
Select Menu  
Item Specific Help  
2nd Boot Device  
3rd Boot Device  
[CDROM]  
[Hard Disk]  
Select your Boot  
Device Priority.  
1st Boot Device [Removable]  
2nd Boot Device [CDROM]  
3rd Boot Device [Hard Disk]  
These items allow you to select your boot device priority. Configuration  
options: [Removable] [Hard Disk] [CDROM] [Legacy LAN] [Disabled]  
ASUS PSCH-SR motherboard  
4-33  
4.6.2 Hard Disk Boot Priority  
Hard Disk Boot Priority  
Select Menu  
1. 1st Master: XXXXXXXX  
2. Bootable Add-in Cards  
Item Specific Help  
Use <up> or <down>  
arrow to select a  
device, then press <+>  
to move it up, or <->  
to move it down the  
list. Press <ESC> to  
exit this menu.  
4.6.3 Removable Device Priority  
Removable Device Priority  
1. Floppy Disks  
Select Menu  
Item Specific Help  
Use <up> or <down>  
arrow to select a  
device, then press <+>  
to move it up, or <->  
to move it down the  
list. Press <ESC> to  
exit this menu.  
4-34  
Chapter 4: BIOS Setup  
4.6.4 CD-ROM Boot Priority  
CD-ROM Boot Priority  
Select Menu  
1. 1st Slave : ASUS  
CD-S520/A  
Item Specific Help  
Use <up> or <down>  
arrow to select a  
device, then press <+>  
to move it up, or <->  
to move it down the  
list. Press <ESC> to  
exit this menu.  
4.6.5 Boot Settings Configuration  
Boot Settings Configuration  
Select Menu  
Boot Other Device  
Quick Power On Self Test  
Halt On  
[Enabled]  
[Enabled]  
[All Errors]  
[Enabled]  
[Enabled]  
[On]  
[Disabled]  
6
250  
Item Specific Help  
Select your Boot  
Device Priority.  
Case Open Warning  
Boot Up Floppy Seek  
Boot Up NumLock Status  
Typematic Rate Setting  
Typematic Rate (Chars/Sec)  
Typematic Delay (Msec)  
Boot Other Device [Enabled]  
Allows you to enable or disable selection of other boot device.  
Configuration options: [Disabled] [Enabled]  
Quick Power On Self Test [Enabled]  
This field speeds up the Power-On-Self Test (POST) routine by skipping  
retesting a second, third, and fourth time. Configuration options: [Disabled]  
[Enabled]  
ASUS PSCH-SR motherboard  
4-35  
Halt On [All Errors]  
Sets the system to halt on errors according to the system functions  
specified in each option. Configuration options: [All Errors] [No Errors] [All,  
But Keyboard] [All , But Diskette] [All, But Disk/Key]  
Case Open Warning [Enabled]  
Allows you to enable or disable the case open status feature. Setting to  
[Enabled] clear the case open status. Configuration options: [Disabled]  
[Enabled]  
Boot Up Floppy Seek [Enabled]  
When enabled, the BIOS will seek the floppy disk drive to determine  
whether the drive has 40 or 80 tracks. Configuration options: [Disabled]  
[Enabled]  
Boot Up NumLock Status [On]  
Allows you to select the power-on state for the NumLock.  
Configuration options: [Disabled] [Enabled]  
Typematic Rate Setting [Disabled]  
Allows you to enable or disable the keyboard typematic rate setting. Set to  
[Enabled] to configure the Type Rate and Type Delay items. Configuration  
options: [Disabled] [Enabled]  
The items Typematic Rate (Chars/Sec) and Typematic Delay  
become configurable only when the item Typematic Setting is enabled.  
Typematic Rate (Chars/Sec) [6]  
Allows you to select the rate at which character repeats when you hold a  
key. Configuration options: [6] [8] [10] [12] [15] [20] [24] [30]  
Typematic Delay (Msec) [250]  
Allows you to set the delay before key strokes begin to repeat.  
Configuration options: [250] [500] [750] [1000]  
4-36  
Chapter 4: BIOS Setup  
4.6.6 Security  
Security  
Select Menu  
Supervisor Password  
User Password  
Password Check  
Clear  
Clear  
[Setup]  
Item Specific Help  
Supervisor password  
control full access.  
Supervisor Password [Enter]  
User Password [Enter]  
These fields allow you to set passwords.  
To set a password:  
1. Highlight an item then press <Enter>.  
2. Type in a password using eight (8) alphanumeric characters, then  
press <Enter>.  
3. When prompted, confirm the password by typing the exact characters  
again, then press <Enter>. The password field setting is changed to  
[Set].  
To clear the password:  
1. Highlight the password field, and press <Enter> twice. The following  
message appears:  
PASSWORD DISABLED!!! Press any key to continue...”  
2. Press any key to return to the menu.  
A note about passwords  
The Supervisor password is required to enter the BIOS Setup program  
preventing unauthorized access. The User password is required to  
boot the system preventing unauthorized use.  
ASUS PSCH-SR motherboard  
4-37  
Forgot the password?  
If you forget your password, you can clear it by erasing the CMOS  
Real Time Clock (RTC) RAM. The RAM data containing the password  
information is powered by the onboard button cell battery. If you need  
to erase the CMOS RAM, refer to section 2.6 Jumpersfor  
instructions.  
Password Check [Setup]  
This field requires you to enter the password before entering the BIOS  
setup or the system. Select [Setup] to require the password before  
entering the BIOS Setup. Select [System] to require the password before  
entering the system. Configuration options: [Setup] [System]  
4-38  
Chapter 4: BIOS Setup  
4.7 Exit menu  
The Exit menu items allow you to load the BIOS setup default settings,  
save or discard any changes you made, or exit the Setup utility.  
Select Menu  
Exit & Save Changes  
Exit & Discard Changes  
Item Specific Help  
Load Setup Defaults  
Discard Changes  
This option saves data  
to CMOS before exiting  
Setup.  
Exit & Save Changes  
Select this option then press Enter, or simply press <F10>, to save your  
changes to CMOS before exiting the Setup utility. When a confirmation  
window appears, type [Y] to save and exit, or [N] to cancel and return to  
the menu.  
Exit & Discard Changes  
Select this option then press Enter if you wish to exit the Setup utility  
without saving your changes. When a confirmation window appears, type  
[Y] to exit and discard your changes, or [N] to cancel and return to the  
menu.  
Load Setup Defaults  
Select this option then press Enter, or simply press <F5>, to load the  
optimized values for each of the Setup menu items. When a confirmation  
window appears, type [Y] to load the default values, or [N] to cancel and  
return to the menu.  
Discard Changes  
Select this option to discard the changes that you made, and restore the  
previously saved values. When a confirmation appears, type [Y] to discard  
any changes and load the previously saved values, or [N] to cancel and  
return to the menu.  
ASUS PSCH-SR motherboard  
4-39  
4-40  
Chapter 4: BIOS Setup  
Appendix  
This appendix includes additional  
information that you may refer to when  
confiiguring the motherboard.  
Reference information  
Appnedix summary  
A-1 Block diagram ................................................ A-1  
ASUS PSCH-SR motherboard  
A.1 PSCH-SR block diagrams  
IDE model  
Intel® Pentium® 4 Processor/  
Prescott Processor 478-Pin Package  
FSB 400/533/800 MHz  
CSA  
266MT/s  
Intel®E7210  
DDR SDRAM  
2 x DIMMs  
Intel® 82547  
in 66MHz  
266/32/333/400 MHz  
128 bit  
(North Bridge)  
LAN  
DDR SDRAM  
2 x DIMMs  
Intel® 82541  
GbE LAN  
Hub-Link 1.5  
266MT/s in 66 MHz  
2XPCI  
33 MHz  
2 PIDE Ports  
(Ultra ATA 66/100)  
Intel®  
6300 ESB  
USB  
USB  
USB  
USB  
4 x USB1.1/  
USB2.0  
Ports  
(South Bridge)  
ATI  
RAGE-XL  
GbE  
VGA  
Conn.  
PCI-X 66 MHz  
miniPCI BMC  
6x TEMPERATURE  
(CPU x2/ Front x2/ Rear x2)  
Winbond  
83792AD  
8x VOLTAGE  
3x TEMPERATURE  
(CPU/Fron/Rear)  
BIOS  
Flash  
ROM  
LPC BUS  
KB  
MS  
WInbond  
W83627THF-A  
Super I/O  
FLOPPY  
COM1  
COM2*  
*To mini-PCI BMC  
ASUS PSCH-SR motherboard  
A-1  
SATA model  
Intel® Pentium® 4 Processor/  
Prescott Processor 478-Pin Package  
FSB 400/533/800 MHz  
CSA  
266MT/s  
in 66MHz  
Intel®E7210  
DDR SDRAM  
2 x DIMMs  
Intel® 82547  
LAN  
266/32/333/400 MHz  
128 bit  
(North Bridge)  
DDR SDRAM  
2 x DIMMs  
Intel® 82541  
GbE LAN  
Hub-Link 1.5  
266MT/s in 66 MHz  
2XPCI  
33 MHz  
2 PIDE Ports  
(Ultra ATA 66/100)  
Intel®  
6300 ESB  
USB  
USB  
USB  
USB  
4 x USB1.1/  
USB2.0  
Ports  
(South Bridge)  
ATI  
RAGE-XL  
GbE  
VGA  
Conn.  
PCI-X 66 MHz  
miniPCI BMC  
SODIMM ZCR  
6x TEMPERATURE  
(CPU x2/ Front x2/ Rear x2)  
Winbond  
83792AD  
Adaptec  
AIC-8110X  
8x VOLTAGE  
3x TEMPERATURE  
(CPU/Fron/Rear)  
4 x SATA  
BIOS  
Flash  
ROM  
LPC BUS  
KB  
MS  
WInbond  
W83627THF-A  
Super I/O  
FLOPPY  
COM1  
COM2*  
*To mini-PCI BMC  
A-2  
Appendix: Reference information  
SCSI model  
Intel® Pentium® 4 Processor/  
Prescott Processor 478-Pin Package  
FSB 400/533/800 MHz  
CSA  
266MT/s  
in 66MHz  
Intel®E7210  
DDR SDRAM  
2 x DIMMs  
Intel® 82547  
LAN  
266/32/333/400 MHz  
128 bit  
(North Bridge)  
DDR SDRAM  
2 x DIMMs  
Intel® 82541  
GbE LAN  
Hub-Link 1.5  
266MT/s in 66 MHz  
2XPCI  
33 MHz  
2 PIDE Ports  
(Ultra ATA 66/100)  
Intel®  
6300 ESB  
USB  
USB  
USB  
USB  
4 x USB1.1/  
USB2.0  
Ports  
(South Bridge)  
ATI  
RAGE-XL  
GbE  
VGA  
Conn.  
PCI-X 66 MHz  
miniPCI BMC  
SODIMM ZCR  
6x TEMPERATURE  
(CPU x2/ Front x2/ Rear x2)  
Winbond  
83792AD  
Adaptec  
AIC-7901X  
8x VOLTAGE  
3x TEMPERATURE  
(CPU/Fron/Rear)  
U320 SCSI  
BIOS  
Flash  
ROM  
LPC BUS  
KB  
MS  
WInbond  
W83627THF-A  
Super I/O  
FLOPPY  
COM1  
COM2*  
*To mini-PCI BMC  
ASUS PSCH-SR motherboard  
A-3  
A-4  
Appendix: Reference information  

Grandstream Networks 29578 User Manual
GE PT920WM User Manual
EVGA P55 FTW User Manual
Elo TouchSystems ET 1525C Series User Manual
Elo TouchSystems Elo Entuitive 3000 Series 1529L User Manual
Cypress CY7C025AV User Manual
Calibre UK PremierView 18ID User Manual
BT Freestyle 2000 User Manual
Asus VX97 User Manual
Addonics Technologies CPR5SA User Manual