Motherboard

P5GPL-X SE

E2368 First Edition January 2006
Copyright 2006 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.

Contents

Notices.... vi Safety information...vii About this guide...viii. Typography... ix P5GPL-X SE specifications summary... x
Chapter 1: Product introduction
1.1 1.2 1.3 Welcome!... 1-2 Package contents... 1-2 Special features... 1-3 1.3.1 1.3.2 1.4 1.5 Product highlights.. 1-3 Innovative ASUS features.. 1-5
Before you proceed... 1-6 Motherboard overview... 1-7 1.5.1 1.5.2 1.5.3 Placement direction.. 1-7 Screw holes.. 1-7. Motherboard layout.. 1-8 Installling the CPU.. 1-9 Installling the CPU heatsink and fan. 1-12. Uninstalling the CPU heatsink and fan. 1-14. Overview... 1-16 Memory Configurations.. 1-16 Installing a DIMM.. 1-19 Removing a DIMM... 1-19 Installing an expansion card.. 1-20 Configuring an expansion card. 1-20 Interrupt assignments.. 1-21. PCI slots... 1-22 PCI Express x16 slot... 1-22
Central Processing Unit (CPU).. 1-9 1.6.1 1.6.2 1.6.3
System memory... 1-16. 1.7.1 1.7.2 1.7.3 1.7.4
Expansion slots... 1-20 1.8.1 1.8.2 1.8.3 1.8.4 1.8.5
Jumpers... 1-23 1.10.1 Rear panel connectors.. 1-26 1.10.2 Internal connectors.. 1-27

1.10 Connectors... 1-26

Chapter 2: BIOS setup
2.1 Managing and updating your BIOS... 2-2 2.1.1 2.1.2 2.1.3 2.1.4 2.1.5 2.2 2.2.1 2.2.2 2.2.3 2.2.4 2.2.5 2.2.6 2.2.7 2.2.8 2.2.9 2.3 2.3.1 2.3.2 2.3.3 2.3.4 2.3.5 2.3.6 2.4 2.4.1 2.4.2 2.4.3 2.4.4 2.4.5 2.4.6 2.5 2.5.1 2.5.2 2.5.3
Creating a bootable floppy disk. 2-2 ASUS EZ Flash utility.. 2-3 AFUDOS utility.. 2-4 ASUS CrashFree BIOS 2 utility.. 2-6 ASUS Update utility.. 2-8 BIOS menu screen.. 2-12 Menu bar... 2-12 Navigation keys... 2-12. Menu items.. 2-13 Sub-menu items... 2-13 Configuration fields.. 2-13 Pop-up window.. 2-13. Scroll bar.. 2-13. General help... 2-13 System Time... 2-14 System Date... 2-14 Legacy Diskette A.. 2-14 Primary, Third and Fourth IDE Master/Slave.. 2-15 IDE Configuration... 2-16 System Information.. 2-18 JumperFree Configuration. 2-19. USB Configuration.. 2-21 CPU Configuration.. 2-22 Chipset... 2-23. Onboard Devices Configuration.. 2-25. PCI PnP.. 2-26 Suspend Mode.. 2-27. Repost Video on S3 Resume.. 2-27 ACPI 2.0 Support.. 2-27

Where to find more information
Refer to the following sources for additional information and for product and software updates. 1. ASUS websites The ASUS website provides 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.
Conventions used in this guide
To make sure that you perform certain tasks properly, take note of the following symbols used throughout this manual. DANGER/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: Instructions that you MUST follow to complete a task. NOTE: Tips and additional information to help you complete a task.

Typography

Bold text Indicates a menu or an item to select Used to emphasize a word or a phrase Keys enclosed in the less-than and greater-than sign means that you must press the enclosed key Example: <Enter> means that you must press the Enter or Return key If you must press two or more keys simultaneously, the key names are linked with a plus sign (+) Example: <Ctrl>+<Alt>+<D>

Italics

<Key> <Key1>+<Key2>+<Key3>

Command

Means that you must type the command exactly as shown, then supply the required item or value enclosed in brackets Example: At the DOS prompt, type the command line: afudos /i[filename]

afudos /iP5GPLXS.ROM

P5GPL-X SE specifications summary
CPU Chipset Front Side Bus Memory LGA775 socket for Intel Pentium 4/Celeron processors Supports Intel single-core 65nm Intel Pentium 4/Celeron processors (Refer to support.asus.com for CPU support list) (Due to chipset limitation, this model does not suppport Intel dual-core CPU)

Supports Intel Enhanced Intel SpeedStep Technology (EIST) Supports Intel Enhanced Memory 64 Technology (EM64T)
Supports Intel Hyper-Threading Technology Intel 915PL Intel ICH6 800/533 MHz
Dual-channel memory architecture 2 x 184-pin DIMM sockets support up to 2GB of unbufferred non-ECC 400/333 MHz DDR DIMMs ASUS Hyper Pathx PCI Express x16 slot 1 x PCI Express x1 slot 3 x PCI slots 1 x Ultra DMA 100/66/x Serial ATA ADI AD1986A SoundMAX 6-channel audio Support Jack Sensing and Enumeration Technology S/PDIF out interface Marvell 88E8001 Gigabit LAN controller Supports up to 8 USB 2.0 ports ASUS C.P.R. (CPU Parameter Recall) ASUS CPU Lock Free ASUS EZ Flash ASUS CrashFree BIOS 2 ASUS MyLogo 4 Mb Flash ROM, AMI BIOS, PnP, DMI2.0, SM BIOS 2.3, WfM2.0, ACPI 2.0a 1 x Parallel port 1 x LAN (RJ-45) port 4 x USB 2.0 ports 1 x Serial port (COM) 1 x coaxial S/PDIF out 1 x PS/2 keyboard port 1 x PS/2 mouse port 6-channel audio ports
Expansion slots Storage Audio LAN USB Special features BIOS features Rear Panel
(continued on the next page)
Overclocking Internal connectors Hardware monitoring Power Requirement Form Factor Manageability Support CD contents ASUS CPU Lock Free Technology ASUS AI Overclocking (Intelligent CPU frequency tuner) CPU and Memory voltage adjustable SFS (Stepless Frequency Selection) from 100MHz up to 400MHz at 1MHz increment Adjustable FSB/DDR ratio. Fixed PCI/PCIe frequencies. ASUS C.P.R.(CPU Parameter Recall) 1 x IDE connector 4 x SATA connector 1 x floppy disk drive connector 1 x CPU fan connector 1 x Chassis fan connector 1 x 24-pin ATX power connector 1 x 4-pin ATX 12 V power connector 2 x USB 2.0 connectors for 4 additional USB 2.0 ports 1 x Optical drive audio connector 1 x Front panel high-definition audio connector 1 x S/PDIF out connector 1 x GAME/MIDI connector System panel connector Super I/O integrated monitoring of CPU/chassis fan and CPU/MB temperature ATX power supply (with 24-pin and 4-pin 12 V plugs) ATX 12 V 2.0 compliant ATX form factor: 12 in x 7.2 in DMI2.0, WfM2.0, PXE, WOL by PME, WOR by PME, Chassis Intrusion Device drivers ASUS PC Probe ASUS Live Update utility Anti-virus utility (OEM version)

CPU Lock Free

This feature allows you to adjust the CPU multiplier to 14x. Setting the appropriate BIOS setting automatically reduces the CPU multiplier value for more flexibility when increasing external FSB. See page 2-22 for details.
ASUS Hyper Path 2 technology
The ASUS Hyper Path 2 technology optimizes the full potential of the Intel chipset by shortening the latency time between the CPU and the system memory. See page 2-24 for details.

CrashFree BIOS 2

This feature allows you to restore the original BIOS data from the support CD in case when the BIOS codes and data are corrupted. This protection eliminates the need to buy a replacement ROM chip. See details on page 26.

ASUS Q-Fan technology

The ASUS Q-Fan technology smartly adjusts the CPU fan speed according to the system loading to ensure quiet, cool, and efficient operation. See page 2-30 for details.

ASUS MyLogo

This new feature present in the motherboard allows you to personalize and add style to your system with customizable boot logos. See page 2-33.

AI NET 2

AI NET 2 is a BIOS-based diagnostic tool that detects and reports Ethernet cable faults and shorts. With this utility, you can easily monitor the condition of the Ethernet cable(s) connected to the Marvell LAN (RJ-45) port. During the bootup process, AI NET 2 immediately diagnoses the LAN cable and can report shorts and faults up to 100 meters away at 1 meter accuracy.

Before you proceed

Take note of the following precautions before you install motherboard components or change any motherboard settings.
Unplug the power cord from the wall socket before touching any component. 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 Hold components by the edges to avoid touching the ICs on them. Whenever you uninstall any component, place it on a grounded antistatic pad or in the bag that came with the component. 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.

V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V

Legend:

A- B- SS - DS - supports one module inserted into either slot, in a Single-channel memory configuration. supports one pair of modules inserted into two slots as one pair of Dual-channel memory configuration. Single-sided Double-sided

1.7.3 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. 2

DDR DIMM notch

Unlock a DIMM socket by pressing the retaining clips outward. Align a DIMM on the socket such that the notch on the DIMM matches the break on the socket.

Unlocked retaining clip

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.
Firmly insert the DIMM into the socket until the retaining clips snap back in place and the DIMM is properly seated.

Locked Retaining Clip

1.7.4 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.
Remove the DIMM from the socket.

Expansion slots

In the future, you may need to install expansion cards. The following subsections 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.
1.8.1 Installing an expansion card
To install an expansion card: 1. 2. 3. 4. 5. 6. Before installing the expansion card, read the documentation that came with it and make the necessary hardware settings for the card. Remove the system unit cover (if your motherboard is already installed in a chassis). Remove the bracket opposite the slot that you intend to use. Keep the screw for later use. Align the card connector with the slot and press firmly until the card is completely seated on the slot. Secure the card to the chassis with the screw you removed earlier. Replace the system cover.

1.8.2 Configuring an expansion card
After installing the expansion card, configure it by adjusting the software settings. 1. 2. 3. Turn on the system and change the necessary BIOS settings, if any. See Chapter 2 for information on BIOS setup. Assign an IRQ to the card. Refer to the tables on the next page. Install the software drivers for the expansion card.
1.8.3 Interrupt assignments
Standard interrupt assignments
IRQ 15 Priority Standard Function System Timer Keyboard Controller Re-direct to IRQ#9 Communications Port (COM1)* IRQ holder for PCI steering* Floppy Disk Controller Printer Port (LPT1)* System CMOS/Real Time Clock IRQ holder for PCI steering* IRQ holder for PCI steering* IRQ holder for PCI steering* PS/2 Compatible Mouse Port* Numeric Data Processor Primary IDE Channel Secondary IDE Channel
* These IRQs are usually available for ISA or PCI devices.
IRQ assignments for this motherboard
PCI slot 1 PCI slot 2 PCI slot 3 Onboard LAN A B used C D used E F used G used H
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 the two PCI groups, making the system unstable and the card inoperable.

1.8.4 PCI slots

The PCI slots support cards such as a LAN card, SCSI card, USB card, and other cards that comply with PCI specifications. The figure shows a LAN card installed on a PCI slot.
1.8.5 PCI Express x16 slot
This motherboard supports PCI Express x16 graphic cards that comply with the PCI Express specifications. The figure shows a graphics card installed on the PCI Express x16 slot.
1.8.6 PCI Express x1 slot
This motherboard supports PCI Express x1 network cards, SCSI cards and other cards that comply with the PCI Express specifications. The figure shows a network card installed on the PCI Express x1 slot.

Jumpers

1. Clear RTC RAM (CLRTC) This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, which include system setup information such as system passwords. To erase the RTC RAM: 1. 2. 3. 4. 5. 6. Turn OFF the computer and unplug the power cord. Remove the onboard battery. 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. Re-install the battery. Plug the power cord and turn ON the computer. Hold down the <Del> key during the boot process and enter BIOS setup to re-enter data.

Recovering the BIOS from a floppy disk
To recover the BIOS from a floppy disk: 1. 2. 3. Turn on the system. Insert the floppy disk with the original or updated BIOS file to the floppy disk drive. The utility displays the following message and automatically checks the floppy disk for the original or updated BIOS file.
Bad BIOS checksum. Starting BIOS recovery. Checking for floppy.
When found, the utility reads the BIOS file and starts flashing the corrupted BIOS file.
Bad BIOS checksum. Starting BIOS recovery. Checking for floppy. Floppy found! Reading file P5GPLXS.ROM. Completed. Start flashing.
DO NOT shut down or reset the system while updating the BIOS! Doing so can cause system boot failure!
Restart the system after the utility completes the updating process.
Recovering the BIOS from the support CD
To recover the BIOS from the support CD: 1. 2. 3. Remove any floppy disk from the floppy disk drive, then turn on the system. Insert the support CD to the optical drive. The utility displays the following message and automatically checks the floppy disk for the original or updated BIOS file.
When no floppy disk is found, the utility automatically checks the optical drive for the original or updated BIOS file. The utility then updates the corrupted BIOS file.
Bad BIOS checksum. Starting BIOS recovery. Checking for floppy. Floppy not found! Checking for CD-ROM. CD-ROM found! Reading file P5GPLXS.ROM. Completed. Start flashing.
The recovered BIOS may not be the latest BIOS version for this motherboard. Visit the ASUS website (www.asus.com) to download the latest BIOS file.
2.1.5 ASUS Update utility
The ASUS Update is a utility that allows you to manage, save, and update the motherboard BIOS in Windows environment. The ASUS Update utility allows you to: Save the current BIOS file Download the latest BIOS file from the Internet Update the BIOS from an updated BIOS file Update the BIOS directly from the Internet, and View the BIOS version information.
This utility is available in the support CD that comes with the motherboard package.
ASUS Update requires an Internet connection either through a network or an Internet Service Provider (ISP).

Installing ASUS Update

To install ASUS Update: 1. 2. 3. Place the support CD in the optical drive. The Drivers menu appears. Click the Utilities tab, then click Install ASUS Update VX.XX.XX. See page 3-4 for the Utilities screen menu. The ASUS Update utility is copied to your system.
Quit all Windows applications before you update the BIOS using this utility.
Updating the BIOS through the Internet
To update the BIOS through the Internet: 1. Launch the ASUS Update utility from the Windows desktop by clicking Start > Programs > ASUS > ASUSUpdate > ASUSUpdate. The ASUS Update main window appears.
Select Update BIOS from the Internet option from the dropdown menu, then click Next.
Select the ASUS FTP site nearest you to avoid network traffic, or click Auto Select. Click Next.
From the FTP site, select the BIOS version that you wish to download. Click Next. Follow the screen instructions to complete the update process.
The ASUS Update utility is capable of updating itself through the Internet. Always update the utility to avail all its features.
Updating the BIOS through a BIOS file
To update the BIOS through a BIOS file: 1. 2. Launch the ASUS Update utility from the Windows desktop by clicking Start > Programs > ASUS > ASUSUpdate > ASUSUpdate. The ASUS Update main window appears. Select Update BIOS from a file option from the dropdown menu, then click Next.
Locate the BIOS file from the Open window, then click Open. Follow the screen instructions to complete the update process.

BIOS setup program

This motherboard supports a programmable firmware chip that you can update using the provided utility described in section 2.1 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 can change the configuration of your computer in the future. For example, you can enable the security password feature or change 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 firmware hub. The firmware hub 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 <Del> 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. Being a menu-driven program, it lets you scroll through the various sub-menus and make your selections from the available options using the navigation keys.

+Tab F1 F10 ESC

Select Screen Select Item Change Field Select Field General Help Save and Exit Exit

Main menu items

2.2.5 Sub-menu items
A solid triangle before each item on any menu screen means that the item has a sub-menu. To display the sub-menu, select the item and press <Enter>.
2.2.6 Configuration fields
These fields show the values for the menu items. If an item is userconfigurable, you can change the value of the field opposite the item. You cannot select an item that is not user-configurable. A configurable field is enclosed in brackets, and is highlighted when selected. To change the value of a field, select it then press <Enter> to display a list of options. Refer to 2.2.7 Pop-up window.

2.2.7 Pop-up window

Select a menu item then press <Enter> to display a pop-up window with the configuration options for that item.

2.2.8 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 the Up/Down arrow keys or <Page Up> /<Page Down> keys to display the other items on the screen.
Advanced Chipset settings WARNING: Setting wrong values in the sections below may cause system to malfunction. Configure DRAM Timing by SPD Memory Acceleration Mode DRAM Idle Timer DRAm Refresh Rate Graphic Adapter Priority Graphics Aperture Size Spread Spectrum ICH Delayed Transaction MPS Revision [Enabled] [Auto] [Auto] [Auto] [AGP/PCI] [ 64 MB] [Enabled] [Enabled] [1.4] +F1 F10 ESC
Select Screen Select Item Change Option General Help Save and Exit Exit

Pop-up window Scroll bar

2.2.9 General help
At the top right corner of the menu screen is a brief description of the selected item.

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 2.2.1 BIOS menu screen for information on the menu screen items and how to navigate through them.
2.3.1 System Time [xx:xx:xxxx]
Allows you to set the system time.
2.3.2 System Date [Day xx/xx/xxxx]
Allows you to set the system date.
2.3.3 Legacy Diskette A [1.44M, 3.5 in.]
Sets the type of floppy drive installed. Configuration options: [Disabled] [360K, 5.25 in.] [1.2M , 5.25 in.] [720K , 3.5 in.] [1.44M, 3.5 in.] [2.88M, 3.5in.]
2.3.4 Primary, Third and Fourth IDE Master/Slave
While entering Setup, the BIOS automatically detects the presence of IDE devices. There is a separate sub-menu for each IDE device. Select a device item then press <Enter> to display the IDE device information.

Intel(R) SpeedStep Technology [Automatic]
Allows you to use the Enhanced Intel SpeedStep Technology. When set to [Automatic], you can adjust the system power settings in the operating system to use the EIST feature. Set this item to [Disabled] if you do not want to use the EIST. Configuration options: [Automatic] [Disabled]
Refer to the Appendix for details on how to use the EIST feature. The motherboard comes with a BIOS file that supports EIST.

2.4.4 Chipset

The Chipset menu allows you to change the advanced chipset settings. Select an item then press <Enter> to display the sub-menu.
Advanced Chipset Settings Configure DRAM Timing by SPD [Enabled] Hyper Path 2 [Auto] Graphic Adapter Priority [PCI Express/PCI] Pre-allocated Graphics Memory [Enabled, 8MB] Graphics memory type [Auto]

+F1 F10

Select Screen Select Item Change Option General Help Save and Exit
Advanced Chipset Settings Configure DRAM Timing by SPD [Enabled]
When this item is enabled, the DRAM timing parameters are set according to the DRAM SPD (Serial Presence Detect). When disabled, you can manually set the DRAM timing parameters through the DRAM sub-items. The following sub-items appear when this item is Disabled. Configuration options: [Disabled] [Enabled]
DRAM CAS# Latency [3 Clocks] Controls the latency between the SDRAM read command and the time the data actually becomes available. Configuration options: [3 Clocks] [2.5 Clocks] [2 Clocks] DRAM RAS# Precharge [4 Clocks] Controls the idle clocks after issuing a precharge command to the DDR SDRAM. Configuration options: [2 Clocks] [3 Clocks] [4 Clocks] [5 Clocks] DRAM Write Recovery Time [4 Clocks] Set the write recovery timing. Configuration options: [2 Clocks]~[15 Clocks] DRAM RAS# to CAS# Delay [4 Clocks] Controls the latency between the DDR SDRAM active command and the read/write command. Configuration options: [2 Clocks] [3 Clocks] [4 Clocks] [5 Clocks] DRAM RAS# Activate to Precharge [15 Clocks] Sets the RAS Activate timing to Precharge timing. Configuration options: [4 Clocks] ~ [15 Clocks]

Hyper Path 2 [Auto]

Enables or disables the memory acceleration mode feature. Configuration options: [Disabled] [Enabled] [Auto]
Graphic Adapter Priority [PCI Express/PCI] PEG Buffer Length [Auto] Link Latency [Auto]
Allows selection of the graphics controller to use as primary boot device. Configuration options: [PCI Express/PCI] [PCI/PCI Express] Sets the PCI Express Graphics card buffer length. Configuration options: [Auto] [Long] [Short] Sets the link latency. Configuration options: [Auto] [Slow] [Normal]

Support CD information

The support CD that came with the motherboard package contains the drivers, software applications, and utilities that you can install to avail all motherboard features.
The contents of the support CD are subject to change at any time without notice. Visit the ASUS website(www.asus.com) for updates.
3.2.1 Running the support CD
Place the support CD to the optical drive. The CD automatically displays the Drivers menu if Autorun is enabled in your computer.
Click an icon to display support CD/motherboard information

Click an item to install

If Autorun is NOT enabled in your computer, browse the contents of the support CD to locate the file ASSETUP.EXE from the BIN folder. Doubleclick the ASSETUP.EXE to run the CD.

3.2.2 Drivers menu

The drivers menu shows the available device drivers if the system detects installed devices. Install the necessary drivers to activate the devices.
Intel Chipset Inf Update Program
This item installs the Intel Chipset INF Update Program. This driver enables Plugn-Play INF support for the Intel chipset components on the motherboard. When installed to the target system, this driver provides the method for configuring the chipset components. You can install this utility using three different modes: interactive, silent, or unattended preload. Installing the driver in interactive mode requires user input during installation. User input is not required when installing the driver in silent or unattended preload modes. Refer to the online help or readme file that came with the utility for details.

SoundMAX Audio Driver

Executes the wizard to install the ADI AD1986A SoundMAX audio driver and application.
Marvell Yukon Gigabit Ethernet Driver
Installs the Marvell Gigabit Ethernet driver.

USB 2.0 Driver

Installs the USB 2.0 driver.

3.2.3 Utilities menu

The Utilities menu shows the applications and other software that the motherboard supports.
Marvell Yukon VCT Application
Installs the Marvell Yukon VCT Application.

ASUS PC Probe

This smart utility monitors the fan speed, CPU temperature, and system voltages, and alerts you of any detected problems. This utility helps you keep your computer in healthy operating condition.

ASUS Update

The ASUS Update utility allows you to update the motherboard BIOS in a Windows environment. This utility requires an Internet connection either through a network or an Internet Service Provider (ISP). See page 2-8 for details.

ASUS Screen Saver

Installs the ASUS screen saver.
ADOBE Acrobat Reader V7.0
Installs the Adobe Acrobat Reader V7.0.

Microsoft DirectX 9.0c

Installs the Microsoft DirectX 9.0c driver.

Anti-Virus utility

The anti-virus application scans, identifies, and removes computer viruses. View the online help for detailed information.

3.2.4 Manuals menu

The Manuals menu contains a list of supplementary user manuals. Click an item to open the folder of the user manual.
Most user manual files are in Portable Document Format (PDF). Install the Adobe Acrobat Reader from the Utilities menu before opening a user manual file.
Intel LGA775 CPU install Users Manual
Allows you to open the Intel LGA775 CPU install users manual.
P5GPL-X SE Motherboard Users Manual
Allows you to open the P5GPL-X SE Motherboard users manual.
3.2.5 ASUS Contact information
Click the Contact tab to display the ASUS contact information. You can also find this information on the inside front cover of this user guide.
The Appendix describes the CPU features that the motherboard supports.

CPU features

The motherboard is fully compatible with Intel Pentium 4 LGA775 processors running on 32-bit operating systems. The motherboard comes with a BIOS file that supports EM64T. You can download the latest BIOS file from the ASUS website (www.asus. com/support/download/) if you need to update the BIOS file. See Chapter 2 for details. Visit www.intel.com for more information on the EM64T feature. Visit www.microsoft.com for more information on Windows 64-bit OS.
Using the Intel EM64T feature
To use the Intel EM64T feature: 1. 2. 3. 4. Install an Intel Pentium 4 CPU that supports the Intel EM64T. Install a 64-bit operating system (Windows XP Professional x64 Edition or Windows Server 2003 x64 Edition). Install the 64-bit drivers for the motherboard components and devices from the support CD. Install the 64-bit drivers for expansion cards or add-on devices, if any.
Refer to the expansion card or add-on device(s) documentation, or visit the related website, to verify if the card/device supports a 64-bit system.
The motherboard comes with a BIOS file that supports EIST. You can download the latest BIOS file from the ASUS website (www. asus.com/support/download/) if you need to update the BIOS. See Chapter 2 for details. Visit www.intel.com for more information on the EIST feature.
A.2.1 System requirements

Before using EIST, check your system if it meets the following requirements: Intel Pentium 4 processor with EIST support BIOS file with EIST support Operating system with EIST support (Windows XP SP2/Windows Server 2003 SP1/Linux 2.6 kernel or later versions)

A.2.2 Using the EIST

To use the EIST feature: 1. 2. 3. 4. 5. 6. 7. Turn on the computer, then enter the BIOS Setup. Go to the Advanced Menu, highlight CPU Configuration, then press <Enter>. Set the Intel(R) SpeedStep Technology item to [Automatic], then press <Enter>. Press <F10> to save your changes and exit the BIOS setup. After the computer restarts, right click on a blank space on the desktop, then select Properties from the pop-up menu. When the Display Properties window appears, click the Screen Saver tab. Click the Power button on the Monitor power section to open the Power Options Properties window.
On the Power schemes section, click , then select any option except Home/Office Desktop or Always On. Click Apply, then click OK.
10. Close the Display Properties window. After you adjust the power scheme, the CPU internal frequency slightly decreases when the CPU loading is low.
The screen displays and procedures may vary depending on the operating system.
Intel Hyper-Threading Technology
The motherboard supports Intel Pentium 4 LGA775 processors with Hyper-Threading Technology. Hyper-Threading Technology is supported under Windows XP/2003 Server and Linux 2.4.x (kernel) and later versions only. Under Linux, use the Hyper-Threading compiler to compile the code. If you are using any other operating systems, disable the Hyper-Threading Techonology item in the BIOS to ensure system stability and performance. Installing Windows XP Service Pack 1 or later version is recommended. Make sure to enable the Hyper-Threading Technology item in BIOS before installing a supported operating system. For more information on Hyper-Threading Technology, visit www. intel.com/info/hyperthreading.
Using the Hyper-Threading Technology
To use the Hyper-Threading Technology: 1. 2. Install an Intel Pentium 4 CPU that supports Hyper-Threading Technology. Power up the system and enter the BIOS Setup. Under the Advanced Menu, make sure that the item HyperThreading Technology is set to Enabled. The BIOS item appears only if you installed a CPU that supports Hyper Threading Technology.