Asus P5P800S User Manual

P5P800S

Motherboard

E1809

First Edition

November 2004

Copyright © 2004 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.

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Contents

Notices ................................................................................................	vi
Safety information .............................................................................	vii
About this guide ...............................................................................	viii
How this guide is organized ..................................................	viii
Where to find more information ............................................	viii
Conventions used in this guide ...............................................	ix
Typography .........................................................................................	ix
P5P800S specifications summary ........................................................	x

Chapter 1: Product introduction

1.1	Welcome! ..............................................................................		1-2
1.2	Package contents .................................................................		1-2
1.3	Special features ....................................................................		1-2
	1.3.1	Product highlights...................................................	1-2
	1.3.2	Innovative ASUS features .......................................	1-4
1.4	Before you proceed ..............................................................		1-5
1.5	Motherboard overview ..........................................................		1-6
	1.5.1	Placement direction ................................................	1-6
	1.5.2	Screw holes ............................................................	1-6
	1.5.3	Motherboard layout ................................................	1-7
1.6	Central Processing Unit (CPU) ..............................................		1-8
	1.6.1	Installling the CPU ...................................................	1-8
	1.6.2 Installling the CPU heatsink and fan .....................		1-11
	1.6.3 Uninstalling the CPU heatsink and fan ..................		1-13
1.7	System memory .................................................................		1-15
	1.7.1	Overview ...............................................................	1-15
	1.7.2	Memory Configurations.........................................	1-15
	1.7.3	Installing a DIMM ...................................................	1-17
	1.7.4	Removing a DIMM .................................................	1-17
1.8	Expansion slots ...................................................................		1-18
	1.8.1 Installing an expansion card ..................................		1-18
	1.8.2 Configuring an expansion card..............................		1-18
	1.8.3	Interrupt assignments ..........................................	1-19
	1.8.4	PCI slots ................................................................	1-20
	1.8.5	AGP slot ................................................................	1-20

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Contents

1.9	Jumpers	..............................................................................	1-21
1.10	Connectors .........................................................................		1-23
	1.10.1	Rear panel connectors ..........................................	1-23
	1.10.2	Internal connectors...............................................	1-25

Chapter 2: BIOS setup

2.1 Managing and updating your BIOS ........................................			2-2
	2.1.1 Creating a bootable floppy disk ..............................		2-2
	2.1.2 ASUS EZ Flash utility ..............................................		2-3
	2.1.3	AFUDOS utility ........................................................	2-4
	2.1.4 ASUS CrashFree BIOS 2 utility ................................		2-6
	2.1.5	ASUS Update utility ................................................	2-8
2.2	BIOS setup program ...........................................................		2-11
	2.2.1	BIOS menu screen.................................................	2-12
	2.2.2	Menu bar ...............................................................	2-12
	2.2.3	Navigation keys ....................................................	2-12
	2.2.4	Menu items ...........................................................	2-13
	2.2.5	Sub-menu items ...................................................	2-13
	2.2.6	Configuration fields ..............................................	2-13
	2.2.7	Pop-up window .....................................................	2-13
	2.2.8	Scroll bar ..............................................................	2-13
	2.2.9	General help ..........................................................	2-13
2.3	Main menu ..........................................................................		2-14
	2.3.1	System Time.........................................................	2-14
	2.3.2	System Date .........................................................	2-14
	2.3.3	Legacy Diskette A ................................................	2-14
	2.3.4 Primary, Third and Fourth IDE Master/Slave .........		2-15
	2.3.6	IDE Configuration ..................................................	2-16
	2.3.7	System Information ..............................................	2-18
2.4	Advanced menu ..................................................................		2-19
	2.4.1	JumperFree Configuration ....................................	2-19
	2.4.2	CPU Configuration.................................................	2-21
	2.4.3	Chipset .................................................................	2-22
	2.4.4	Onboard Devices Configuration ............................	2-24
	2.4.5	PCI PnP .................................................................	2-25

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Contents

	2.4.6	USB Configuration.................................................	2-27
2.5	Power menu ........................................................................		2-29
	2.5.1	Suspend Mode ......................................................	2-29
	2.5.2 Repost Video on S3 Resume ................................		2-29
	2.5.3	ACPI 2.0 Support ..................................................	2-29
	2.5.4	ACPI APIC Support ................................................	2-29
	2.5.5	APM Configuration ................................................	2-30
	2.5.6	Hardware Monitor .................................................	2-32
2.6	Boot menu ..........................................................................		2-33
	2.6.1	Boot Device Priority..............................................	2-33
	2.6.2	Boot Settings Configuration .................................	2-34
	2.6.3	Security ................................................................	2-35
2.7	Exit menu ...........................................................................		2-38

Chapter 3: Software support

3.1	Installing an operating system .............................................		3-2
3.2	Support CD information ........................................................		3-2
	3.2.1 Running the support CD .........................................		3-2
	3.2.2	Drivers menu ..........................................................	3-3
	3.2.3	Utilities menu ..........................................................	3-4
	3.2.4	ASUS Contact information ......................................	3-5

v

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 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.

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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.

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About this guide

This user guide contains the information you need when installing and configuring the motherboard.

How this guide is organized

This manual contains the following parts:

•Chapter 1: Product introduction

This chapter describes the features of the motherboard and the new technology it supports. This chapter also lists the hardware setup procedures that you have to perform when installing system components. It includes description of the jumpers and connectors on the motherboard.

•Chapter 2: BIOS setup

This chapter tells how to change system settings through the BIOS Setup menus. Detailed descriptions of the BIOS parameters are also provided.

•Chapter 3: Software support

This chapter describes the contents of the support CD that comes with the motherboard package.

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.

viii

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

Bol d text	Indicates a menu or an item to select
Italics	Used to emphasize a word or a phrase
<Key>	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
<Key1+Key2+Key3>	If you must press two or more keys simultaneously, the
	key names are linked with a plus sign (+)
	Example: <Ctrl+Alt+D>
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 /iP5P800S.ROM

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P5P800S specifications summary

	C P U	LGA775 socket for Intel® Pentium® 4/Celeron processor
		Compatible with the Intel® PCG 04A and 04B processors
		Supports Intel® Hyper-Threading Technology
	Chipset	Northbridge: Intel® 848P
		Southbridge: Intel® ICH5
	Front Side Bus	800/533 MHz
	Memory
		2 x 184-pin DIMM sockets support up to 2GB of
		unbufferred non-ECC 400/333/266 MHz DDR DIMMs
	Expansion slots
		1 x AGP 8x (1.5V and 0.8V only)
		5 x PCI slots
	Storage
		2 x Ultra DMA 100/66/33
		2 x Serial ATA
	Audio
		ADI AD1888 SoundMAX 6-channel CODEC
		S/PDIF out interface support
	L A N
		Realtek® RTL8100C 10/100 Mbps Ethernet controller
	U S B	Supports up to 8 USB 2.0 ports
	AI Overclocking
		CPU Lock Free
		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 AGP/PCI frequencies
		ASUS JumperFree
		ASUS C.P.R. (CPU Parameter Recall)
	Special features
		ASUS EZ Flash
		ASUS CrashFree BIOS 2
		ASUS MyLogo™
	Rear panel
		1 x Parallel port
		1 x LAN (RJ-45) port
		4 x USB 2.0 ports
		1 x Serial port (COM)
		1 x S/PDIF out port
		1 x PS/2 keyboard port
		1 x PS/2 mouse port
		Audio I/O ports
		(continued on the next page)

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P5P800S specifications summary

	BIOS features		3 Mb Flash ROM, AMI BIOS, PnP, WfM2.0, DMI2.0,
			SM BIOS 2.3, ASUS EZ Flash, CrashFree BIOS2, C.P.R.
			(CPU Parameter Recall), ASUS MyLogo
	Industry standard
			PCI 2.2, USB 2.0
	Manageability
			WfM 2.0, DMI 2.0, WOL by PME, WOR by PME, Chassis
			Intrussion
	Internal
			2 x USB 2.0 connectors for 4 additional USB 2.0 ports
	connectors		1 x CPU fan connector
			1 x Chassis fan connector
			1 x 20-pin ATX power connector
			1 x 4-pin ATX 12 V power connector
			1 x CD/AUX connector
			1 x Chassis intrusion connector
			1 x Front panel audio connector
			1 x S/PDIF out connector
			1 x Game/MIDI connector
			1 x 20-pin Panel connector
	Power
			ATX power supply (with 20-pin and 4-pin 12 V plugs)
	Requirement
	Form Factor
			ATX form factor: 12 in x 8.2 in (30.5 cm x 20.5 cm)
	Support CD
			Device drivers
	contents		ASUS PC Probe
			ASUS Live Update utility
			Anti-virus software (OEM version)

*Specifications are subject to change without notice.

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This chapter describes the motherboard

features and the new technologies 1 it supports.

Product introduction

ASUS P5P800S

1 - 1

1.1Welcome!

Thank you for buying an ASUS® P5P800S motherboard!

The motherboard delivers a host of new features and latest technologies, making it another standout in the long line of ASUS quality motherboards!

Before you start installing the motherboard, and hardware devices on it, check the items in your package with the list below.

1.2Package contents

Check your motherboard package for the following items.

Motherboard	ASUS P5P800S motherboard
Cables	2 x Serial ATA signal cables
	1 x Ultra DMA 100/66/33 cables
	1 x Floppy disk drive cable
Accessories	I/O shield
Application CDs	ASUS motherboard support CD
Documentation	User guide

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

1.3Special features

1.3.1Product highlights

Latest processor technology

The motherboard comes with a 775-pin surface mount Land Grid Array (LGA) socket designed for the Intel® Pentium® 4 processor in the 775-land package. The motherboard supports the Intel® Pentium® 4 processor with 800 MHz Front Side Bus (FSB), 1 MB L2 cache, and core speed of up to 3.6 GHz. The motherboard also supports the Intel ® Hyper-Threading Technology and is fully compatible with Intel® 04B and 04A processors. See page 1-8 for details.

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Chapter 1: Product introduction

CPU Lock Free support

The motherboard supports the CPU Lock Free feature that allows you to adjust the CPU multiplier to 14x. The reduction of multiplier value provides more flexibility for increased external FSB frequency to raise the memory bus bandwith. CPU Lock Free boosts overall performance by making synchronous modification possible. Enjoy better performance at the same CPU speed and improve your system without pushing the CPU to the limit.

DDR400 (PC3200) support

The motherboard supports DDR400 (PC3200) that allows bandwidth of up to 3.2 GB/s to provide enhanced system performance. See 1-15.

Serial ATA technology

The motherboard supports the Serial ATA technology through the Serial ATA interfaces and the Intel® ICH5 chipset. 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. See page 1-26 for details.

6-channel audio support

The motherboard comes with the ADI AD1888 SoundMAX audio CODEC that lets you enjoy high-quality 6-channel audio without having to buy advanced sound cards. The ADI SoundMAX Digital Audio System features state-of-the-art DLS2 MIDI synthesizer with Yamaha DLS by XG sound set, 5.1 Virtual Theater™ and supports major game audio technologies including Microsoft® DirectX™ 8.0, Microsoft® DirectSound 3D, A3D, MacroFX, ZoomFX, MultiDrive 5.1, and EAX. See pages 1-23 and 1-24 for details.

S/PDIF digital sound ready

The motherboard supports the S/PDIF Out function through the onboard S/PDIF interface. The S/PDIF technology turns your computer into a high-end entertainment system with digital connectivity to powerful audio and speaker systems. See page 1-28 for details.

10/100 Mbps LAN support

Easy connectivity to your network or broadband connection with the onboard LAN port. Allows you to play online games without buying expensive additional LAN cards. See pages 1-23.

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AGP 8X support

The AGP 8X (AGP 3.0) VGA interface specification enables enhanced graphics performance with high bandwidth speeds up to 2.12 GB/s.

USB 2.0 technology

The motherboard implements the Universal Serial Bus (USB) 2.0 specification, dramatically increasing the connection speed from the

12 Mbps bandwidth on USB 1.1 to a fast 480 Mbps on USB 2.0. USB 2.0 is backward compatible with USB 1.1. See page 1-24 for details.

Temperature, fan, and voltage monitoring

The CPU temperature is monitored by the ASIC (integrated in the Winbond Super I/O) to prevent overheating and damage. The system fan rotations per minute (RPM) is monitored for timely failure detection. The ASIC monitors the voltage levels to ensure stable supply of current for critical components. See page 2-32 for details.

1.3.2Innovative ASUS features

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 2-6.

ASUS MyLogo™

This feature present in the motherboard allows you to personalize and add style to your system with customizable boot logos. See page 2-34.

ASUS EZ Flash BIOS

With the ASUS EZ Flash, you can easily update the system BIOS even before loading the operating system. No need to use a DOS-based utility or boot from a floppy disk. See page 2-3 for details.

C.P.R. (CPU Parameter Recall)

The C.P.R. feature of the motherboard BIOS allows automatic re-setting to the BIOS default settings in case the system hangs due to overclocking. When the system hangs due to overclocking, C.P.R. eliminates the need to open the system chassis and clear the RTC data. Simply shut down and reboot the system, and BIOS automatically restores the CPU’s previous setting for each parameter.

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Chapter 1: Product introduction

1.4Before 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.

Onboard LED

The motherboard comes with a standby power LED that lights up to indicate that the system is ON, in sleep mode, or in soft-off mode. This is a reminder that you should shut down the system and unplug the power cable before removing or plugging in any motherboard component. The illustration below shows the location of the onboard LED.

	SB_PWR
P5P800S	ON	OFF
P5P800S Onboard LED	Standby	Powered
	Power	Off

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1.5Motherboard overview

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 can cause you physical injury and damage motherboard components.

1.5.1Placement direction

When installing the motherboard, make sure that you place it into 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.

1.5.2Screw holes

Place seven (7) screws into the holes indicated by circles to secure the motherboard to the chassis.

Do not overtighten the screws! Doing so can damage the motherboard.

Place this side towards the rear of the chassis

®

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Chapter 1: Product introduction

1.5.3Motherboard layout

	20.8cm( 8.2in)
PS/2KBMS
T: Mouse
B: Keyboard			Super
			I/O
		LGA775
SPDIF_O				module)pin-bit,184	module)pin-bit,184	FLOPPY
PARALLELPORT		CPU_FAN
COM1				(64	(64
USB12				DIMM1	DIMM2
	ATX12V			DDR	DDR
LAN_USB34	USBPW12	Intel
	USBPW34	848P
	ATXPWR					SECIDE	(12.0in)30.5cm
Top:Line In
Center:Line Out
Below:Mic In
		®
		AGP
						SATA2
	PCI1
			Intel
RTL8100C	PCI2		ICH5		SATA1
	PCI3	CR2032 3V
		Lithium Cell
FP_AUDIO		CMOS Power	CLRTC
						PRI_IDE
SPDIF_OUT	PCI4	USBPW78		3Mb		CHA_FAN
		USBPW56
CD	AUX		FWH
	PCI5					CHASSIS
		USB56	USB78
AD1888	P5P800S		GAME			PANEL
		SB_PWR

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1.6Central Processing Unit (CPU)

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

•Your boxed Intel® Pentium® 4 LGA775 processor package should

come with installation instructions for the CPU, fan and heatsink assembly. If the instructions in this section do not match the CPU documentation, follow the latter.

•Upon purchase of the motherboard, make sure that the PnP cap is on the socket and the socket pins are not bent. Contact your retailer immediately if the PnP cap is missing, or if you see any damage to the PnP cap/socket pins/motherboard components. ASUS will shoulder the cost of repair only if the damage is shipment/ transit-related.

•Keep the cap after installing the motherboard. ASUS will process Return Merchandise Authorization (RMA) requests only if the motherboard comes with the cap on the LGA775 socket.

•The product warranty does not cover damage to the socket pins resulting from incorrect CPU installation/removal, or misplacement/ loss/incorrect removal of the PnP cap.

1.6.1Installling the CPU

To install a CPU:

1.Locate the CPU socket on the motherboard.

P5P800S

P5P800S 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.

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Chapter 1: Product introduction

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

A

Loa d lever

B

This side of the cam box should face you.

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

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	B
	angle (A), then push the PnP cap
	from the load plate window to
	remove (B).	A

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

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

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!

Notes on Intel® Hyper-Threading Technology

• This motherboard supports Intel® Pentium® 4 CPUs in the 775-land package with Hyper-Threading Technology.

•Hyper-Threading Technology is supported under Windows® XP/2003 Server and Linux 1.7.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 Technology item in the BIOS to ensure system stability and performance.

•Installing Windows® XP Service Pack 1 or later 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.

To use the Hyper-Threading Technology on this motherboard:

1.Install an Intel® Pentium® 4 CPU in the 775-land package that supports Hyper-Threading Technology.

2.Power up the system and enter the BIOS Setup (see Chapter 2: BIOS setup). Under the Advanced Menu, make sure that the item Hyper-Threading Technology is set to Enabled. The item appears only if you installed a CPU that supports Hyper-Threading Technology.

3.Reboot the computer.

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Chapter 1: Product introduction

1.6.2Installling the CPU heatsink and fan

The Intel® Pentium® 4 LGA775 processor requires a specially designed heatsink and fan assembly to ensure optimum thermal condition and performance.

• When you buy a boxed Intel® Pentium® 4 processor, the package includes the CPU fan and heatsink assembly. If you buy a CPU separately, make sure that you use only Intel®-certified multi-directional heatsink and fan.

•Your Intel® Pentium® 4 LGA775 heatsink and fan assembly comes in a push-pin design and requires no tool to install.

•If you purchased a separate CPU heatsink and fan assembly, make sure that you have properly applied Thermal Interface Material to the CPU heatsink or CPU before you install the heatsink and fan assembly.

Make sure that you have installed the motherboard to the chassis before you install the CPU fan and heatsink assembly.

To install the CPU heatsink and fan:

1.Place the heatsink on top of the installed CPU, making sure that the four fasteners match the holes on the motherboard.

Orient the heatsink and fan assembly such that the CPU fan cable is closest to the CPU fan connector.

Narro w end	Motherboard hole

of the groove	Fastener

Make sure to orient each fastener with the narrow end of the groove pointing outward. (The photo shows the groove shaded for emphasis.)

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2.Push down two fasteners at a time in a diagonal

sequence to secure the		B
heatsink and fan assembly in	A	A
place.
		B

AB

BA

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

CPU_FAN

GND

CPU FAN PWR

CPU FAN IN

P5GD1

CPU FAN PWM

P5GD1 CPU_Fan connector

Do not forget to connect the CPU fan connector! Hardware monitoring errors can occur if you fail to plug this connector.

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Chapter 1: Product introduction

1.6.3Uninstalling the CPU heatsink and fan

To uninstall the CPU heatsink and fan:

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

2.Rotate each fastener counterclockwise.

3.Pull up two fasteners at a time in a diagonal sequence

to disengage the heatsink		B
and fan assembly from the	A	A
motherboard.
		B

AB

BA

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4.Carefully remove the heatsink and fan assembly from the motherboard.

5.Rotate each fastener clockwise to ensure correct orientation when reinstalling.

The narrow end of the groove should point outward after resetting. (The photo shows the groove shaded for emphasis.)

Narrow end of the groove

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Chapter 1: Product introduction

1.7System memory

1.7.1Overview

The motherboard comes with two 184-pin Double Data Rate (DDR) Dual Inline Memory Modules (DIMM) sockets. The following figure illustrates the location of the sockets:

DIMM1	DIMM2
P5P800S

P5P800S 184-pin DDR DIMM sockets

1.7.2Memory Configurations

You may install 128 MB, 256 MB, 512 MB and 1 GB unbuffered non-ECC DDR DIMMs into the DIMM sockets using the memory configurations in this section.

1.For optimum compatibility, it is recommended that you obtain memory modules from the same vendor. See the DDR400 Qualified Vendor List (QVL) on page 1-16.

2.Make sure that the memory frequency matches the CPU FSB (Front Side Bus). Refer to the Memory frequency/CPU FSB synchronization table below.

3.Always install DIMMs with the same CAS Latency.

4.Double-sided DDR DIMMs with x 1 6 (data bus=16bit) memory chips are not supported due to chipset limitation.

Memory frequency/CPU FSB synchronization

This motherboard supports different memory frequencies depending on the CPU FSB (Front Side Bus) and the type of DDR DIMM.

CP U FSB		DDR DIMM Type	Memory Frequency
800 MHz		PC3200/PC2700/PC2100	400/320*/266 MHz
533 MHz		PC2700/PC2100	333/266 MHz

*When using 800 MHz FSB CPU, PC2700 DDR DIMMs run only at 320MHz (not 333MHz) due to chipset limitation.

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