Asus P1-PH1 User Manual

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Pundit P1-PH1

Barebone System

User Guide

E2346

Revised Edition V2

February 2006

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.

Table of contents

Notices ...........................................................................................			vi
Safety information .........................................................................			vii
About this guide ............................................................................			viii
System package contents ...............................................................			x
Chapter 1: System introduction
1.1	Welcome! ...........................................................................		1-2
1.2	Front panel (external) .........................................................		1-2
1.3	Front panel (internal) ..........................................................		1-3
1.4	Rear panel ..........................................................................		1-4
1.5	Internal components ...........................................................		1-6
1.6	System dimension ..............................................................		1-6
Chapter 2: Basic installation
2.1	Preparation .........................................................................		2-2
2.2	Before you proceed ............................................................		2-2
2.3	Removing the cover ...........................................................		2-3
2.4	Removing the front panel cover .........................................		2-4
2.5	Removing the storage drive assembly ...............................		2-4
2.6	Installing a CPU ..................................................................		2-5
	2.6.1	Removing the CPU fan and heatsink assembly ...	2-5
	2.6.2	CPU installation ....................................................	2-6
	2.6.3	Reinstalling the CPU fan
		and heatsink assembly .........................................	2-8
2.7	Installing memory modules .................................................		2-9
	2.7.1	Overview ..............................................................	2-9
	2.7.2	Memory configurations .........................................	2-9
	2.7.3	Qualified Vendor List ..........................................	2-10
	2.7.4	Installing a DIMM ...............................................	2-10
	2.7.5	Removing a DIMM .............................................	2-13
2.8	Installing PCI cards ..........................................................		2-13
	2.8.1	PCI slots .............................................................	2-13
	2.8.2	PCI card installation ...........................................	2-13
	2.8.3	Configuring an expansion card ..........................	2-15

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Table of contents

2.9	Installing optical and storage drives .................................		2-16
	2.9.1	Optical and storage drives installation ...............	2-16
	2.9.2	Recommended optical drive dimension .............	2-18
2.10	Replacing the cover ..........................................................		2-20
2.11	Removing and reinstalling the foot stand .........................		2-21
	2.11.1	Installing the foot stand ......................................	2-21
	2.11.2	Removing the foot stand ....................................	2-23
2.12	Power supply unit information ..........................................		2-23
	2.12.1	Voltage selector ..................................................	2-23
	2.12.2	Power supply specifications ...............................	2-24
2.13	Connecting devices ..........................................................		2-25
Chapter 3: Starting up
3.1	Installing an operating system ............................................		3-2
3.2	Powering up .......................................................................		3-2
3.3	Using the system ................................................................		3-2
	3.3.1	CompactFlash card slot .......................................	3-2
	3.3.2	Storage card slot ..................................................	3-3
	3.3.3	Optical drive .........................................................	3-3
3.4	Support CD information ......................................................		3-4
	3.4.1	Running the support CD .......................................	3-4
	3.4.2	Drivers menu ........................................................	3-4
	3.4.3	Utilities ..................................................................	3-5
	3.4.4	ASUS contact information ....................................	3-6
	3.4.5	Other information .................................................	3-7
Chapter 4: Motherboard information
4.1	Introduction .........................................................................		4-2
4.2	Motherboard layout ............................................................		4-2
4.3	Jumper	...............................................................................	4-3
4.4	Internal .............................................................connectors		4-4

Table of contents

Chapter 5: BIOS setup

5.1	Managing and updating your BIOS ....................................		5-2
	5.1.1 ASUS EZ Flash utility ...........................................		5-2
	5.1.2 Recovering the BIOS with CrashFree BIOS 2 .....		5-3
	5.1.3	ASUS Update .......................................................	5-5
5.2	BIOS Setup program ..........................................................		5-7
	5.2.1	BIOS menu bar ....................................................	5-8
	5.2.2	Legend bar ...........................................................	5-8
5.3	Main Menu ........................................................................		5-10
	5.3.1	System Time ......................................................	5-10
	5.3.2	System Date .......................................................	5-10
	5.3.3 Primary IDE Master/Slave; First SATA Master ....		5-11
	5.3.4	HDD SMART Monitoring ....................................	5-12
	5.3.5	Installed Memory ................................................	5-12
	5.3.6	Usable Memory ..................................................	5-12
5.4	Advanced Menu ...............................................................		5-13
	5.4.1	CPU configuration ..............................................	5-13
	5.4.2	Chipset configuration .........................................	5-14
	5.4.3	PCIPnP ..............................................................	5-15
	5.4.4	Onboard device configuration ...........................	5-16
	5.4.5	USB configuration .............................................	5-18
5.5	Power menu .....................................................................		5-19
	5.5.1	APM configuration ..............................................	5-20
	5.5.2	Hardware Monitor ...............................................	5-22

5.6Boot menu5-23

5.6.1	Boot device priority .............................................	5-23
5.6.2	Removable drives ..............................................	5-24
5.6.3	Hard disk drives .................................................	5-24
5.6.4	CD-ROM drives ..................................................	5-25
5.6.5	Boot Settings Configuration ...............................	5-26
5.6.6	Security ..............................................................	5-27
5.7 Exit menu .........................................................................		5-29

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.

WARNING! 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.

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 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 devices into the system, carefully read all the documentation 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.

Lithium-Ion Battery Warning

CAUTION: Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s instructions.

VORSICHT: Explosionsgetahr bei unsachgemäßen Austausch der Batterie. Ersatz nur durch denselben oder einem vom Hersteller empfohlenem ähnljchen Typ. Entsorgung gebrauchter Batterien nach Angaben des Herstellers.

LASER PRODUCT WARNING

CLASS 1 LASER PRODUCT

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About this guide

Audience

This guide provides general information and installation instructions about the ASUS Book size barebone system. This guide is intended for experienced users and integrators with hardware knowledge of personal computers.

How this guide is organized

This guide contains the following parts:

1.Chapter 1: System introduction

This chapter gives a general description of the ASUS Book size barebone system. The chapter lists the system features including introduction on the front and rear panels, and internal components.

2.Chapter 2: Basic installation

This chapter provides step-by-step instructions on how to install components in the system.

3.Chapter 3: Starting up

This chapter helps you power up the system and install drivers and utilities from the support CD.

4.Chapter 4: Motherboard information

This chapter gives information about the motherboard that comes with the system. This chapter includes the motherboard layout, jumper settings, and connector locations.

5.Chapter 5: BIOS setup

This chapter tells how to change system settings through the BIOS Setup menus and describes the BIOS parameters.

viii

Conventions used in this guide

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.

System package contents

Check your book size barebone system package for the following items.

1.ASUS book size barebone system with:

•ASUS motherboard

•CPU fan and heatsink assembly

•CompactFlash card reader

•3-in-1 storage card reader

•PCI riser card

•250W power supply unit

2.Cables

•Power cable and plug

•Serial ATA power cable and signal cable

•IDE cable (one preinstalled)

3.CDs

•Support CD

•Recover PRO CD

4.Quick Installation Guide

If any of the items is damaged or missing, contact your retailer immediately.

Chapter 1

This chapter gives a general description of the ASUS book size barebone system. The chapter lists the system features including introduction on the front and rear panel, and internal components.

System introduction

1.1Welcome!

Thank you for choosing the ASUS book size barebone system!

The ASUS book size barebone system is a union of power, design, and performance built on ASUS technology and innovation. Inside the elegant casing is the ASUS motherboard that supports Intel® Pentium® 4 processor with up to 800MHz front side bus (FSB), and up to 2GB system memory.

This system features a complete array of multimedia capabilities and seamless connectivity including dual display function, Fast Ethernet, 3-in-1 card reader, CF card reader, USB, S/PDIF, and IEEE 1394 interfaces.

The ergonomic design, silent operation, and cost effective architecture of the ASUS book size barebone system makes it an ideal solution for your multimedia and computing needs.

1.2Front panel (external)

The front panel includes the system and audio control buttons, system LEDs, and LED panel.

1. Optical drive bay cover.

This door opens when you eject the loading tray.

2.Eject button . Press this button to eject the loading tray of the optical drive.

3.HDD LED . This LED lights up when data is being read from or written to the hard disk drive.

4.Front panel I/O door. Open this door to show the front panel input/ output ports.

5.Power button . Press this button to turn the system on.

6.Power LED . When lit, this LED indicates that the system is ON.

7.Foot stand. The foot stand allows you to place the system in a vertical position. See page 2-21 for details.

1-2	Chapter 1: System introduction

1.3Front panel (internal)

The optical drive, storage card reader, and several I/O ports are located inside the front panel door.

Open the front panel door by pressing the mark.

8.Reset button . Press this button to reset the system.

9.CF card slot. This slot is for a CompactFlash® compliant card.

10.3-in-1 card slot . This slot is for Memory Stick® /Pro™, SecureDigital™and MultiMediaCard.

You cannot close the front panel I/O door if a storage card is inserted in any of the card slots.

11.S/PDIF In port . This port connects your audio system for 5.1-channel surround sound and enhanced 3D audio.

12.6-pin IEEE 1394 port . This port provides high-speed connectivity for IEEE 1394-compliant audio/video devices, storage peripherals, and other PC devices.

13.4-pin IEEE 1394 port . This port provides high-speed connectivity for IEEE 1394-compliant audio/video devices, storage peripherals, and other PC devices.

14.Microphone port . This Mic (pink) port connects a microphone.

15.Headphone port . This port connects a headphone with a stereo mini-plug.

16.USB 2.0 ports . These Universal Serial Bus 2.0 (USB 2.0) ports are available for connecting USB 2.0 devices such as a mouse, printer, scanner, camera, PDA, and others.

17.S/PDIF out port . This port connects your audio system for 5.1-channel surround sound and enhanced 3D audio.

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1.4Rear panel

The system rear panel includes the power socket and several I/O ports that allow convenient connection of devices.

1.Voltage selector. This switch allows you to select the appropriate voltage supply in your area. See the “Voltage selector” section on page 2-23 before adjusting this switch.

2.Power supply unit. This is a 250W power supply unit.

3.S-Video port . This port connects a video cassette recorder, camcorder, or television with S-Video interface.

12 6

	7
10	8
9

4.TV-out port. This port connects a television.

5.PS/2 mouse port . This green 6-pin connector is for a PS/2 mouse.

6.Ethernet LAN port . This port allows connection to a Local Area Network (LAN) through a network hub.

7.Parallel port . This 25-pin port connects a printer, scanner, or other devices.

8.PCI slots. These PCI slots (covered) are for PCI-compliant cards.

9. Serial port . This port connects a mouse, modem, or other devices that conforms with serial specification.

10.VGA port . This port connects a VGA monitor.

11.DVI-D port. This port connects a flat panel or LCD display.

12.USB 2.0 ports 2.0. These Universal Serial Bus 2.0 (USB 2.0) ports are available for connecting USB 2.0 devices such as a mouse, printer, scanner, camera, PDA, and others.

1-4	Chapter 1: System introduction

13.PS/2 keyboard port. This purple 6-pin connector is for a PS/2 keyboard.

14.Microphone port . This Microphone (pink) port connects a microphone. In 4/ 6-channel mode, the function of this port becomes Surround Speaker.

15.Line Out port . This Line Out (lime) port connects a headphone or a speaker. In 4/6-channel mode, the function of this port becomes Front Speaker Out.

16.Line In port. This Line In (light blue) port connects a tape player or other audio sources. In 6-channel mode, the function of this port becomes Low Frequency Enhanced Output/Center.

The functions of the Line Out (lime), Line In (blue), and Microphone (pink) ports change when you select the 4-channel or 6-channel audio configuration as shown in the table below.

Audio ports function variation

Port	Headphone/2-Channel	4-Channel	6-Channel

Blue	Line In	No function	LFE Output*/Center

Lime	Line Out	Front Speaker Out	Front Speaker Out

Pink	Mic In	Surround	Surround

* Low Frequency Enhanced Output

17. Power socket. This socket connects the power cable and plug.

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1.5Internal components

The illustration below is the internal view of the system when you remove the cover. The installed components are labeled for your reference. Proceed to Chapter 2 for instructions on installing other system components.

	2		6
	3		6
		5
			7
1.	Storage drive assembly	5.	DIMM sockets
2.	PCI riser	6.	CPU fan and heatsink assembly
3.	ASUS motherboard	7.	Foot stand
4.	Power supply unit

1.6System dimension

The ASUS booksize barebone system is ergonomically designed to fit and complement your desktop.

You may use the foot stand to place the system vertically on a flat, stable surface.

275mm

91mm

1-6	Chapter 1: System introduction

Chapter 2

This chapter provides step-by-step instructions on how to install components in the system.

Basic installation

2.1Preparation

Before you proceed, make sure that you have all the components that you plan to install in the system.

Basic components to install

1.Central processing unit (CPU)

2.DDR II Memory Module

3.Expansion card(s)

4.Hard disk drive

5.Optical drive

Tool

Phillips (cross) screw driver

2.2 Before you proceed

Take note of the following precautions before you install components into the system.

• 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.

The motherboard comes with an onboard standby power LED. When lit, this LED indicates that the system is ON, in sleep mode or in soft-off mode, and not powered OFF. Unplug the power cable from the power outlet and make sure that the standby power LED is OFF before installing any system component.

SB_PWR

OFF

Standby

Powered

Power

Off

Onboard LED

2-2	Chapter 2: Basic installation

2.3 Removing the cover

To remove the cover:

1.On the rear panel, locate the two screws that secure the cover to the chassis.

2.Use a Phillips (cross) screw driver to remove the cover screws. Keep the screws for later use.

3.Pull the cover slightly toward the rear panel until the cover tabs disengage from the chassis.

4.Lift the cover, then set aside.

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2.4 Removing the front panel cover
To remove the front cover:		1	2
		1	2
1.	Lift the front cover hooks
	outward until they disengage
	from the chassis.
2.	Carefully remove the front
	cover, then set it aside.

2.5 Removing the storage drive assembly

Removing the storage drive assembly provides you more space when installing the CPU and the CPU fan and heatsink assembly.

To remove the front cover and storage drive assembly:

1.Locate and remove three storage drive assembly screws. Keep the screws for later use.

If your system comes with a preinstalled optical drive, disconnect the power, audio, and IDE plugs at the back of the drive before lifting the storage drive assembly.

2.Slightly lift the storage drive assembly until its hooks are released from the chassis holes. Set the storage drive assembly aside.

When removing the storage drive assembly, make sure to hold or support it firmly. The assembly may accidentally drop and damage other system components.

2-4	Chapter 2: Basic installation

2.6 Installing a CPU

The motherboard comes with a surface mount LGA775 socket designed for Intel® Pentium® 4 processor in the 775-land package.

2.6.1 Removing the CPU fan and heatsink assembly

The system package includes a pre-installed proprietary CPU fan and heatsink assembly to provide an efficient thermal solution to the CPU.

• DO NOT replace the proprietary CPU fan and heatsink with other models.

•Remove the memory modules first before removing the CPU fan and heatsink assembly to avoid damaging the retaining clips of the DIMM sockets. Refer to the next section for details on how to remove the memory modules.

You must remove the CPU fan and heatsink assembly before installing a CPU.

To remove the CPU fan and heatsink assembly:

1.Disconnect the CPU fan cable from the CPU fan connector on the motherboard.

2.Loosen the CPU fan and heatsink

assembly screws.

3.Lift the CPU fan and heatsink assembly, then set aside.

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2.6.2 CPU installation

To install the CPU:

1.Locate the 775-pin CPU socket on the motherboard.

CPU Socket 775

Before installing the CPU, make sure that the socket box is facing towards you and the load lever is on your left.

2.Press the load lever with your thumb (A) and move it to the left (B) until it is released from the retention tab.

Retention tab

Pn P Cap

Loa d lever

This side of the socket box should fac e you .

To prevent damage to the socket pins, do not remove the PnP cap unless you are installing a CPU.

2-6	Chapter 2: Basic installation

3.Lift the load lever in the direction of the arrow to a 135º angle.

4.Lift the load plate with your thumb and forefinger to a 100º angle (A), then push the PnP cap from the load plate window to remove (B).

Loa d plate

5.Position the CPU over the socket, making sure that the gold triangle is on the bottom-left corner of the socket. The socket alignment key should fit into the CPU notch.

Alignment key

Gold triangle mark

6.Close the load plate (A), then push the load lever (B) until it snaps into the retention tab.

The CPU fits in only one correct orientation. DO NOT force the CPU into the socket to prevent bending the connectors on the socket and damaging the CPU!

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2.6.3 Reinstalling the CPU fan and heatsink assembly

To reinstall the CPU fan and heatsink assembly:

1.Position the CPU fan and heatsink assembly on top of the installed CPU.

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. When the four screws are attached, tighten them one by one to completely secure the heatsink.

3.Connect the CPU fan cable to the CPU fan connector on the motherboard.

Fan power connector

CPU_FAN

Rotation +12V GND

2-8	Chapter 2: Basic installation

2.7Installing memory modules

2.7.1 Overview

The system motherboard has two DDR II DIMM sockets that support up to 2GB non-ECC PC5300/4200/3200 DDR II SDRAM DIMMs. Each DIMM socket is double-sided. Refer to the illustration below for the location of the DIMM sockets.

DIMMA1

DIMMB1

240-pin DDR2 DIMM sockets

For optimum compatibility, we recommend that you obtain memory modules from the same vendor. Refer to section 2.7.3 for a list of qualified DDR vendors.

2.7.2 Memory configurations

You may install 64MB, 128MB, 256MB, 512MB, and 1GB DDR II DIMMs to the DIMM sockets.

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2.7.3 Qualified Vendor List

The following table lists the DDR II 667 memory modules that have been tested and qualified for use with this motherboard.

						DIMM support
Size	Vendor	Model	CL	Brand	SS/DS	Component	A*	B*
256MB	SAMSUNG	M378T3253FZ0-CE6	–	SAMSUNG	SS	K4T56083QF-ZCE6	V	V
512MB	SAMSUNG	M378T6453FZ0-CE6	–	SAMSUNG	DS	K4T56083QF-ZCE6	V	V
1024MB	Kingston	KVR667D2N5/1G	–	Kingston	DS	E5108AE-GE-E	V	V
512MB	Hynix	HYMP564U64AP8-Y5	–	Hynix	SS	HY5PS12821AFP-Y5 V V
1024MB	Hynix	HYMP512U64AP8-Y4	–	Hynix	DS	HY5PS12821AFP-Y4 V V
512MB	Hynix	HYMP564U64AP8-Y4	3	Hynix	SS	HY5PS12821AFP-Y4	V	V
512MB	MICRON	MT16HTF6464AY-667B4	5	MICRON	DS	4VB41D9CZM	V	V
256MB	MICRON	MT8HTF3264AY-667B5	5	MICRON	SS	4SB42D9CZM	V	V
256MB	MICRON	MT8HTF3264AY-667B6	5	MICRON	SS	5FB42D9DPN	V	V
256MB	Infineon	HYS64T32000HU-3S-A	5	Infineon	SS	HYB18T512160AF-3S	V	V
512MB	Infineon	HYS64T64000HU-3S-A	5	Infineon	SS	HYB18T512800AF3S	V	V
1024MB	Infineon	HYS64T128020HU-3S-A	5	Infineon	DS	HYB18T512800AF3S	V	V
512MB	ELPIDA	EBE51UD8AEFA-6E-E	–	ELPIDA	SS	E5108AE-GE-E	V	V
1024MB	ELPIDA	EBE11UD8AEFA-6E-E	–	–	DS	–	V	V
256MB	ELPIDA	EBE25UC8ABFA-6E-E	5	ELPIDA	SS	E2508AB-GE-E	V	V

A* : Supports one module inserted in any slot as Single-channel memory configuration. B* : Supports one pair of modules inserted into eithor the blue slots or the black slots as one pair of Dual-channel memory configuration.

Obtain DDR II DIMMs only from ASUS qualified vendors. Visit the ASUS website (www.asus.com) for the latest QVL.

2-10	Chapter 2: Basic installation

2.7.4 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.

•Reinstall the CPU fan and heatsink assembly before installing the DIMM(s) to avoid damaging the retaining clips of the DIMM sockets. Refer to the previous section for details on how to reinstall the CPU fan and heatsink assembly.

To install a DIMM:

1.Locate the DIMM sockets in the motherboard.

2.Unlock a DIMM socket by pressing the retaining clips outward.

3.Align a DIMM on the socket such that the notch on the DIMM matches the break on the socket.

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

DDR II DIMM notch

Unlocked retaining clip

Locked retaining clip

A DDR II 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.

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