ASUS P4SE User Manual

P4SE
User Guide
Motherboard
Checklist
E1 141 Second Edition
October 2002
Copyright © 2002 ASUSTeK COMPUTER INC. All Rights Reserved.
No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK COMPUTER INC. (“ASUS”).
Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing.
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.
Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies, and are used only for identification or explanation and to the owners’ benefit, without intent to infringe.
ii
Contents
Contents ......................................................................................... iii
FCC/CDC statements......................................................................v
Federal Communications Commission Statement .................v
Canadian Department of Communications Statement ...........v
Safety information ..........................................................................vi
About this guide............................................................................. vii
Conventions used in this guide ............................................ vii
Where to find more information ............................................ vii
ASUS contact information ............................................................. vii
Specifications summary .................................................................ix
Chapter 1 - Motherboard Info ................................................... 1-1
1.1 Welcome ...................................................................... 1-2
1.2 Package contents ....................................................... 1-2
Features
1.3 Motherboard components .......................................... 1-3
1.4 Motherboard layout..................................................... 1-6
1.5 Before you proceed..................................................... 1-7
1.6 Central Processing Unit (CPU)................................... 1-7
1.7 System memory........................................................... 1-8
1.8 Expansion Slots........................................................... 1-9
1.8.1 Configuring an expansion card .................................. 1-9
1.8.2 Standard Interrupt Assignments ................................ 1-9
1.9 Switches and Jumpers ................................................ 1-10
1.10 Connectors ................................................................. 1-14
Chapter 2 - BIOS Information ..................................................... .2-1
2.1 Managing and updating your BIOS ............................ 2-2
2.1.1 Using ASUS AFLASH to update the BIOS................... 2-2
Updating BIOS procedures.................................... 2-3
2.2 BIOS Setup Program ................................................... 2-5
2.2.1 BIOS menu bar ........................................................... 2-5
2.2.2 Legend bar .................................................................. 2-6
iii
Safeguards
Contents
2.3 Main Menu .................................................................... 2-7
2.3.1 Primary and Secondary Master/Slave......................... 2-9
2.3.2 Keyboard Features ..................................................... 2-11
2.4 Advanced Menu ........................................................... 2-12
2.4.1 Chip Configuration ...................................................... 2-14
2.4.2 I/O Device Configuration ............................................. 2-16
2.4.3 PCI Configuration ........................................................ 2-17
2.4.3.1 Onboard PCI Devices Control .................................. 2-18
2.4.3.2 PCI IRQ Resource Exclusion ................................... 2-18
2.5 Power Menu .................................................................. 2-19
2.5.1 Power-up Control ........................................................ 2-21
2.5.2 Hardware Monitor ........................................................ 2-22
2.6 Boot Menu ..................................................................... 2-22
2.7 Exit Menu ................................................................. 2-24
Chapter 3 - Starting Up .............................................................. 3-1
3.1 Install an operating system......................................... 3-3
3.2 Support CD information.............................................. 3-3
3.2.1 Running the support CD ............................................ 3-3
3.2.2 Software drivers and installation menus .................... 3-4
3.3 Software Information................................................... 3-5
3.3.1 ASUS Update ............................................................. 3-5
3.3.2 ASUS PC Probe ......................................................... 3-6
Starting ASUS PC Probe ...................................... 3-6
Using ASUS PC Probe ......................................... 3-7
ASUS PC Probe Task Bar Icon ............................ 3-9
iv
FCC/CDC statements
Federal Communications Commission Statement
This device complies with FCC Rules Part 15. 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 user’s 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 adpater 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
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/DANGER: 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. The ASUS websites are listed in the ASUS Contact Information on page viii.
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.
vii
ASUS contact information
ASUSTeK COMPUTER INC. (Asia-Pacific)
Address: 150 Li-Te Road, Peitou, Taipei, Taiwan 112 General Tel: +886-2-2894-3447 General Fax: +886-2-2894-3449 General Email: info@asus.com.tw
Technical Support
MB/Others (Tel): +886-2-2890-7121 (English) Notebook (Tel): +886-2-2890-7122 (English) Desktop/Server (Tel): +886-2-2890-7123 (English) Support Fax: +886-2-2890-7698 Support Email: tsd@asus.com.tw Web Site: www.asus.com.tw Newsgroup: cscnews.asus.com.tw
ASUS COMPUTER INTERNATIONAL (America)
Address: 6737 Mowry Avenue, Mowry Business Center,
Building 2, Newark, CA 94560, USA General Fax: +1-510-608-4555 General Email: tmd1@asus.com
Technical Support
Support Fax: +1-510-608-4555 General Support: +1-502-933-8713 Web Site: www.asus.com Support Email: tsd@asus.com
ASUS COMPUTER GmbH (Europe)
Address: Harkortstr. 25, 40880 Ratingen, BRD, Germany General Fax: +49-2102-442066 General Email: sales@asuscom.de (for marketing requests only)
Technical Support
Support Hotline: MB/Others: +49-2102-9599-0 Notebook (Tel): +49-2102-9599-10 Support Fax: +49-2102-9599-11 Support (Email): www.asuscom.de/de/support (for online support) Web Site: www.asuscom.de
viii
P4SE specifications summary
CPU
Chipset
Front Side Bus (FSB) Memory
Expansion slots
IDE Audio (optional)
Special Features
Socket 478 for Intel Pentium 4/Celeron Northwood/ Willamette processors with frequency up to 2.6+ GHz
Northbridge: SiS 645 Southbridge: SiS961B
400 MHz 3 x DDR DIMM Sockets supports a maximum of 3 GB
unbuffered PC2700/2100/1600 non-ECC DDR DIMMs (Note: PC2700 max. to 4 banks only.)
1 x AGP 4X 6 x PCI
2 x UltraDMA 133/100/66 C-Media 4-channel CODEC
S/PDIF-out interface ASUS EZPlug for flexible power connectivity
ASUS MyLogo for customized boot logos ASUS Jumperfree support S/PDIF out interface (on audio model only) SFS (Stepless Frequency Selection) Suspend-to-RAM
Back Panel I/O Ports
Internal I/O Connectors
1 x Parallel 2 x Serial 1 x PS/2 Keyboard 1 x PS/2 Mouse 2 x USB 1.1 1 x Audio I/O, Game/MIDI (on audio models only)
CPU/power/Chassis FAN connector 20 pin ATX power connector 4-pin AUX power connector Chassis intrusion SM Bus SIR S/PDIF out connector (on audio model only) CD/AUX/Modem audio in (on audio model only) ASUS front panel audio connector (on audio model only) 2 x USB Headers support additional 4 USB 1.1 ports
(continued on the next page)
ix
P4SE specifications summary
BIOS features
Industry standard Manageability Form Factor Support CD contents
Accessories
* Specifications are subject to change without notice.
2Mb Flash EEPROM, ASUS JumperFree, ASUS MyLogo, Award BIOS with ACPI, DMI2.0, PnP, WfM2.0, Green, TCAV (Trend Chip Away Virus)
PCI 2.2, USB 1.1 WfM2.0, DMI2.0, WOR, WOL, Chassis Intrusion, SM Bus ATX form factor: 12 in x 8.6 in (30.5 cm x 21.9 cm) Device drivers
ASUS PC Probe Trend Micro ASUS LiveUpdate Utility
User’s manual Support CD 1 x UltraDMA 133/100/66 cable FDD cable
tm
PC-cillin 2002 anti-virus software
x
Chapter 1
This chapter gives information about the ASUS P4SE motherboard that came with the system.This chapter includes the motherboard layout, jumper settings, and connector locations.
ASUS P4SE Motherboard
Motherboard Info
1-1
1.1 Welcome!
Thank you for buying the ASUS® P4SE motherboard!
The ASUS technology making it another standout in the long line of ASUS quality motherboards!
The P4SE incorporates the Intel package/Northwood Processor coupled with the SiS 645 chipset to set a new benchmark for an effective desktop platform solution.
P4SE motherboard delivers a host of new features and latest
®
Pentium® 4 Processor in 478-pin
~ Up to 3GB of system memory of PC 2700 / 2100 / 1600 DDR (Note: PC2700 max. to 2GB only)
~ High-resolution graphics via an AGP 4X slot ~ Digital Audio Interface for 3D sound ~ Two USB ports plus headers for four more
1.2 Package contents
Check your ASUS P4SE package for the following items.
ASUS P4SE motherboard
ATX form factor: 12 in x 8.6 in ASUS P4SE support CD 1 pc. 80-conductor ribbon cable for UltraDMA/66/100/133 IDE drives 1 pc. 40-conductor ribbon cable for Ultra 33 IDE drives Ribbon cable for a 3.5-inch floppy drive Bag of extra jumper caps User Guide
1-2
1.3 Motherboard components
17 18 19
23 4
1
5
6
7 8
9
16
15
14 12
10
13
11
ASUS P4SE Motherboard
20212225 24 23
1-3
1
ATX 12V connector. This power connector connects the 4-pin 12V
plug from the ATX 12V power supply.
2
CPU Sockets. A 478-pin surface mount, Zero Insertion Force (ZIF)
®
socket for the Intel
Pentium® 4 478/Northwood Processor with 400 MHz system bus that allows 3.2 GB/s data transfer rates respectively.
3
ATX power connector. This standard 20-pin connector connects to
an ATX 12V power supply. The power supply must have at least 1A on the +5V standby lead (+5VSB).
4
DDR DIMM Sockets. These three 184-pin DIMM sockets support
up to 3GB using non-ECC PC2700/2100/1600 DDR SDRAM DIMMs. (Note: PC 2700 max. to 4 banks only.)
5
ASUS EZ Plug
TM
Auxillary +12V connector. This ASUS patented
auxillary power connector is used if you don’t have an ATX + 12V power supply. Connect a 4-pin device connector from a standard power supply to this connector to provide sufficient power to the CPU.
6
Floppy Disk connector. This connector connects the provided
ribbon cable for the floppy disk drive. One side of the connector is slotted to prevent incorrect insertion of the floppy disk cable.
7
8
9
10
11
Northbridge Controller. This SiS 645 controller integrates a high
performance host interface for the Intel
®
Pentium® 4 processor, a
memory controller and an integrated graphics interface. IDE Connectors. These dual-channel bus master IDE connectors
support up to four Ultra DMA133/100/66, PIO Modes 3 & 4 IDE devices. Both the primary(blue) and secondary(black) connectors are slotted to prevent incorrect insertion of the IDE ribbon cable.
AGP slot. This Accelerated Graphics Port (AGP) slot supports AGP4x mode graphic cards for 3D graphical applications.
DIP Switches. This 5-switch Dual Inline Package (DIP) allows you to set the CPU external frequency.
ASUS ASIC. This chip performs multile system functions that include hardware and system voltage monitoring.
1-4
Chapter 1: Motherboard Information
12
South bridge controller. This SiS 961B controller integrates the
AC’97 Interface, four Universal Serial Bus Host controllers, two IDE Master/Slave controllers.
13
14
15
16
17 18
Super I/O chipset. This interface provides the commonly used
Super I/O functionality. The chipset supports a high-performance floppy disk controller for a 360K/720K/1.44M/2.88M floppy disk drive, a PS/2 keyboard and mouse port, a multi-mode parallel port, a game port and, a serial port.
Standby power LED. This green LED lights up if there is a standby power on the motherboard. The LED acts as a reminder to turn off the system power before plugging or unplugging devices.
Flash ROM. This 2Mb firmware contains the programmable BIOS program.
PCI slots. These 32-bit PCI 2.2 expansion slots support bus master PCI cards like SCSI and LAN cards with 133MB/s maximum output.
PS/2 mouse port. This green 6-pin connector is for a PS/2 mouse. Parallel port. This 25-pin port connects a parallel printer, a
scanner, or other devices.
19
20 21
22
23
24
25
GAME/MIDI port. This connector supports a joystick or a game
pad for playing games, and MIDI devices for playing or editing audio files. (on audio models only)
Microphone jack. This Mic (pink) jack connects a microphone. Line In jack. This Line In (light blue) jack connects a tape player or
other audio sources. Line Out jack. This Line Out (lime) jack connects a headphone or
a speaker. Serial port. This port connects to your serial mouse and other
serial devices. USB port. These two 4-pin Universal Serial Bus 1.1 (USB 1.1)
ports are available for connecting USB devices such as a mouse and PDA.
PS/2 keyboard port. This purple 6-pin connector is for a PS/2 keyboard.
ASUS P4SE Motherboard
1-5
1.4 Motherboard layout
21.9cm (8.6in)
®
PS/2KBMS T: Mouse B: Keyboard
USB1 USB2
COM1
PARALLEL PORT
COM2
Line
Out
Line
In
Mic
GAME_AUDIO
In
CD1
ALOUT1
IAPANEL1
C-Media
4CH
USBV1
KBPWR
CPUFAN1
AUX1
VEN1
ATX12V1
Accelerated Graphics Port
PCI1
PCI2
PCI3
P4SE
PCI4
LED1
PCI5
ATX Power Connector
SiS645
HOST/
Memory
Controller
AGP
Socket 478
DDRVOL1
SECONDARY IDE
CR2032 3V Lithium Cell
CMOS Power
AUX12V1
FLOPPY1
PRIMARY IDE
CLRCMOS1
PWRFAN1
DDR DIMM1 (64/72 bit, 184-pin module)
0 1
DDR DIMM3 (64/72 bit, 184-pin module)
DDR DIMM2 (64/72 bit, 184-pin module)
4 5
2 3
SiS961B MuTLOL
Media
I/O
SPDIF_OUT1
SMB1
SMARTCON1
CHASFAN1
ASUS
ASIC
Hardware
Monitor
PWRTMP1
with
DSW1
IR
30.5cm (12.0in)
JEN1
CHASSIS1
MODEM1
Hub
2Mbit
Firmware
PCI6
USB3
USBV2 USBV3
USB2
Super
I/O
IDELED1
PANEL1
The audio feature is optional.The components are grayed out in the above motherboard layout.
1-6
Chapter 1: Motherboard Information
1.5 Before you proceed
®
d
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.
When lit, the onboard LED (LED1) indicates that the system is ON, in sleep mode, or in soft-off mode, a reminder that you should shut down the system before removing of plugging in any motherboard component
P4SE
P4SE Onboard LED
ON
Standby
Power
LED1
OFF
Powere
Off
ASUS P4SE Motherboard
1-7
®
s
1.6 Central Processing Unit (CPU)
®
The motherboard comes with a surface mount 478-pin Zero Insertion Force (ZIF) socket. This socket is specifically designed for the Intel Pentium® 4 478/Northwood Processor.
®
P4SE
P4SE Socket 478
Gold Arrow
1.7 System memory
The motherboard has three Double Data Rate (DDR) DIMM sockets that supports up to 3GB non-ECC PC2700/2100/1600 DDR.
A DDR DIMM has the same physical dimensions as an SDR DIMM, but it has a 184-pin footprint compared to the 168-pin of the SDR DIMM. Also, a DDR DIMM is single notched while an SDR DIMM is double notched. (Note: PC2700 max. to 4 banks only.)
104 Pin
P4SE
P4SE 184-Pin DDR DIMM Sockets
80 Pins
1. 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.
1-8
Chapter 1: Motherboard Information
1.8 Expansion slots
The P4SE motherboard has six (6) expansion slots. The following sub­sections describe the slots and the expansion cards that they support.
1.8.1 Configuring an expansion card
After physically installing the expansion card, configure the card by adjusting the software settings.
1. Turn on the system and change the necessary BIOS settings, if any.
2. Assign an IRQ to the card. Refer to the tables below.
3. Install the software drivers for the expansion card.
1.8.2 Standard Interrupt Assignments
IRQ Priority Standard Function
0 1 System Timer 1 2 Keyboard Controller 2 N/A Programmable Interrupt Controller 3* 11 Communications Port (COM2) 4* 12 Communications Port (COM1) 5* 13 Sound Card (sometimes LPT2) 6 14 Standard Floppy Disk Controller 7* 15 Printer Port (LPT1) 8 3 System CMOS/Real Time Clock 9* 4 ACPI Mode when used 10* 5 IRQ Holder for PCI Steering 11* 6 IRQ Holder for PCI Steering 12* 7 PS/2 Compatible Mouse Port 13 8 Numeric Data Processor 14* 9 Primary IDE Channel 15* 10 Secondary IDE Channel
*These IRQs are usually available for ISA or PCI devices.
IRQ assignments for this motherboard
ABCD
PCI slot 1 shared — PCI slot 2 shared — PCI slot 3 shared — PCI slot 4 shared PCI slot 5 shared — PCI slot 6 shared — Onboard USB controller HC0 shared Onboard USB controller HC1 shared AGP shared
When using PCI cards on shared slots, ensure that the drivers support “Share IRQ” or that the cards do not need IRQ assignments. Otherwise, conflicts will arise between two PCI groups.
ASUS P4SE Motherboard
1-9
1.9 Switches and jumpers
®
®
JEN1
e
The motherboard frequency is adjusted through the DIP switches. The white block represents the switch position. The illustration below shows all the switches in the OFF position.
ONOFF
ON
DSW1
12345
P4SE
1. Frequency Selection
2. Frequency Selection
3. Frequency Selection
4. Frequency Selection
5. Frequency Selection
P4SE DIP Switches
The JEN jumper (see below) must be set to pins 1-2 for Jumper Mode if you wish to use the DIP switches. Otherwise, setting the switches does not produce any effect.
1. JumperFree™ Mode (JEN1)
This jumper allows you to enable or disable the JumperFree™ mode. The JumperFree mode allows you to change CPU settings through
the BIOS setup instead of using the DIP switches.
ONOFF
ON
DSW1
12345
P4SE
Jumper Mode
P4SE JumperFree™ Mode Setting
2 1
3 2
Jumper Fre
(Default)
The JEN jumper is set in conjunction with the DIP switches. In JumperFree mode, set all the DIP switches to OFF.
1-10
Chapter 1: Motherboard Information
2. CPU Frequency Selection (DSW1 Switches 1-5)
®
z
z
z z
®
t)
This option tells the clock generator what frequency to send the CPU. This permits selection of the CPU’s external frequency (or Bus Clock). The BUS Clock multiplied by the Frequency Multiple equals the CPU’s internal frequency (the advertised CPU speed).
To select the CPU external frequency using the DIP switches, ensure that the JEN jumper is set to jumper mode.
DSW1
CPU
DRAM
ON
12345
P4SE
CPU
105MHz 140MHz
DRAM
ON
12345
100MHz 100MHz
ON
12345
108MHz 144MHz
ON
12345
100MHz 133MHz
ON
12345
112MHz 149MHz
ON
12345
100MHz 150MHz
ON
12345
133MHz 133MHz
ON
12345
100MHz 160MHz
ON
12345
133MHz 166MHz
ON
12345
100MH 166MH
ON
12345
100MH 200MH
P4SE CPU External Frequency Selection
Set the CPU frequency only to the recommended settings. Frequencies other than the recommended CPU bus frequencies are not guaranteed to be stable.
3. 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 (the default is the Space Bar). This feature requires an ATX power supply that can supply at least 1A on the +5VSB lead, and a corresponding setting in the BIOS (see section 4.5.1 Power Up Control).
KBPWR1
3
2 1
+5V
P4SE
2
+5VSB
(Defaul
P4SE Keyboard Power Setting
ASUS P4SE Motherboard
1-11
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