ASUS P5PL2 User Manual

P5PL2

Motherboard

E2233

First Edition

September 2005

Copyright © 2005 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 byASUS; or (2) the serial number of the product is defaced or missing.

ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OFANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FORAPARTICULAR PURPOSE. IN NO EVENT SHALLASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES ORAGENTS BE LIABLE FORANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESSAND THE LIKE), EVEN IFASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGESARISING FROMANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.

SPECIFICATIONSAND INFORMATION CONTAINED IN THIS MANUALARE FURNISHED FOR INFORMATIONAL USE ONLY,ANDARE SUBJECT TO CHANGEATANY TIME WITHOUT NOTICE,AND SHOULD NOT BE CONSTRUEDASACOMMITMENT BY ASUS.ASUSASSUMES NO RESPONSIBILITY OR LIABILITY FORANY ERRORS OR INACCURACIES THAT MAYAPPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.

Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies, and are used only for identification or explanation and to the owners’ benefit, without intent to infringe.

ii

Contents

Notices................................................................................................	vi
Safety information .............................................................................	vii
About this guide.................................................................................	viii
P5PL2 specifications summary.............................................................	x

Chapter 1: Product introduction

1.1	Welcome!..............................................................................		1-1
1.2	Package contents .................................................................		1-1
1.3	Special features....................................................................		1-2
	1.3.1	Product highlights...................................................	1-2
	1.3.2	Innovative ASUS features .......................................	1-3

Chapter 2: Hardware information

2.1	Before you proceed ..............................................................		2-1
2.2	Motherboard overview..........................................................		2-2
	2.2.1	Placement direction ................................................	2-2
	2.2.2	Screw holes.............................................................	2-2
	2.2.3	Motherboard layout ................................................	2-3
	2.2.4	Layout contents .....................................................	2-4
2.3	Central Processing Unit (CPU) ..............................................		2-6
	2.3.1	Installing the CPU....................................................	2-6
	2.3.2 Installing the CPU heatsink and fan.........................		2-9
	2.3.3 Uninstalling the CPU heatsink and fan...................		2-11
2.4	System memory..................................................................		2-13
	2.4.1	Overview...............................................................	2-13
	2.4.2	Memory configurations .........................................	2-13
	2.4.3	Installing a DIMM ...................................................	2-15
	2.4.4	Removing a DIMM..................................................	2-15
2.5	Expansion slots...................................................................		2-16
	2.5.1 Installing an expansion card..................................		2-16
	2.5.2 Configuring an expansion card..............................		2-16
	2.5.3	Interrupt assignments...........................................	2-17
	2.5.4	PCI slots................................................................	2-18
	2.5.5 PCI Express x16 slot .............................................		2-18
	2.5.6 PCI Express x1 slots..............................................		2-18
2.6	Jumpers	..............................................................................	2-19

iii

Contents

2.7 Connectors .........................................................................		2-21
2.7.1	Rear panel connectors ..........................................	2-21
2.7.2	Internal connectors...............................................	2-22

Chapter 3: Powering up

3.1	Starting up for the first time................................................		3-1
3.2	Powering off the computer...................................................		3-2
	3.2.1	Using the OS shut down function ...........................	3-2
	3.2.2	Using the dual function power switch.....................	3-2

Chapter 4: BIOS setup

4.1 Managing and updating your BIOS ........................................			4-1
	4.1.1 Creating a bootable floppy disk..............................		4-1
	4.1.2	ASUS utility.............................................................	4-2
	4.1.3 ASUS CrashFree BIOS 2 utility ................................		4-5
	4.1.4 ASUS EZ Flash utility...............................................		4-7
	4.1.5	ASUS Update utility ................................................	4-8
4.2	BIOS setup program............................................................		4-11
	4.2.1	Menu bar...............................................................	4-12
	4.2.2	Navigation keys.....................................................	4-12
	4.2.3	BIOS menu screen.................................................	4-12
	4.2.4	Menu items ...........................................................	4-13
	4.2.5	Sub-menu items....................................................	4-13
	4.2.6	Configuration fields...............................................	4-13
	4.2.7	Pop-up window......................................................	4-13
	4.2.8	Scroll bar...............................................................	4-13
	4.2.9	General help ..........................................................	4-13
4.3	Main menu...........................................................................		4-14
	4.3.1	System Time ........................................................	4-14
	4.3.2	System Date .......................................................	4-14
	4.3.3	Legacy Diskette A ..............................................	4-14
	4.3.4 Primary and Secondary IDE Master/Slave .............		4-15
	4.3.5	IDE Configuration ..................................................	4-16
	4.3.6	System Information ..............................................	4-18
4.4	Advanced menu..................................................................		4-19
	4.4.1	JumperFree Configuration.....................................	4-19

iv

Contents

	4.4.2	USB Configuration.................................................	4-22
	4.4.3	CPU Configuration.................................................	4-23
	4.4.4	Chipset..................................................................	4-24
	4.4.5	Onboard Devices Configuration.............................	4-26
	4.4.6	PCI PnP..................................................................	4-28
4.5	Power menu........................................................................		4-30
	4.5.1	Suspend Mode ....................................................	4-30
	4.5.2 Repost Video on S3 Resume ................................		4-30
	4.5.3	ACPI 2.0 Support ................................................	4-30
	4.5.4	ACPI APIC Support ..............................................	4-30
	4.5.5	APM Configuration ................................................	4-31
	4.5.6	Hardware Monitor..................................................	4-33
4.6	Boot menu..........................................................................		4-35
	4.6.1	Boot Device Priority..............................................	4-35
	4.6.2	Boot Settings Configuration ................................	4-36
	4.6.3	Security.................................................................	4-37
4.7	Exit menu............................................................................		4-40

Chapter 5: Software support

5.1	Installing an operating system..............................................		5-1
5.2	Support CD information........................................................		5-1
	5.2.1 Running the support CD..........................................		5-1
	5.2.2	Drivers menu...........................................................	5-2
	5.2.3	Utilities menu..........................................................	5-3
	5.2.4	Manuals menu .........................................................	5-5
	5.2.5	Contact information................................................	5-6
	5.2.6	Other information ...................................................	5-6
5.3	ASUS MyLogo™.....................................................................		5-8

Appendix: CPU features

A.1	Intel® EM64T.........................................................................		A-1
A.2	Enhanced Intel SpeedStep® Technology (EIST) ....................		A-1
	A.2.1	System requirements..............................................	A-1
	A.2.2	Using the EIST.........................................................	A-2
A.3	Intel® Hyper-Threading Technology......................................		A-3
	Using the Hyper-Threading Technology ...............................		A-3

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 manufacturerʼs 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 userʼs 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.

vi

Safety information

Electrical safety

•To prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the system.

•When adding or removing devices to or from the system, ensure that the power cables for the devices are unplugged before the signal cables are connected. If possible, disconnect all power cables from the existing system before you add a device.

•Before connecting or removing signal cables from the motherboard, ensure that all power cables are unplugged.

•Seek professional assistance before using an adpater or extension cord. These devices could interrupt the grounding circuit.

•Make sure that your power supply is set to the correct voltage in your area. If you are not sure about the voltage of the electrical outlet you are using, contact your local power company.

•If the power supply is broken, do not try to fix it by yourself. Contact a qualified service technician or your retailer.

Operation safety

•Before installing the motherboard and adding devices on it, carefully read all the manuals that came with the package.

•Before using the product, make sure all cables are correctly connected and the power cables are not damaged. If you detect any damage, contact your dealer immediately.

•To avoid short circuits, keep paper clips, screws, and staples away from connectors, slots, sockets and circuitry.

•Avoid dust, humidity, and temperature extremes. Do not place the product in any area where it may become wet.

•Place the product on a stable surface.

•If you encounter technical problems with the product, contact a qualified service technician or your retailer.

vii

About this guide

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

How this guide is organized

This guide contains the following parts:

•Chapter 1: Product introduction

This chapter describes the features of the motherboard and the new technology it supports.

•Chapter 2: Hardware information

This chapter lists the hardware setup procedures that you have to perform when installing system components. It includes description of the switches, jumpers, and connectors on the motherboard.

•Chapter 3: Powering up

This chapter describes the power up sequence, the vocal POST messages, and ways of shutting down the system.

•Chapter 4: BIOS setup

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

•Chapter 5: Software support

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

•Appendix: CPU features

The Appendix describes the CPU features that the motherboard supports.

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

Bold 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 /iP5PL2.ROM

ix

P5PL2 specifications summary

CPU

Chipset

Front Side Bus

Memory

Socket 775 for Intel Pentium D/ Pentium 4/ Celeron processors

Supports Intel® EM64T/ EIST/Hyper-Threading Technology

Supports Intel® 04B/04A and 05B/05A processor

Northbridge: Intel® 945PL

Southbridge: Intel® ICH7

800/533 MHz

Dual-channel memory architecture

4 x 240-pin DIMM sockets support unbufferred non-ECC DDR2 400/533 memory modules

Supports up to 2 GB system memory

(Note: Each channel supports two banks only.)

Expansion slots	1 x PCI-E x16 slot for discrete graphic card
	2 x PCI-E x1 slots
	3 x PCI slots
Storage	Intel® ICH7 South Bridge supports:
	- 1 x Ultra DMA 100/66/33
	- 4 x Serial ATA 3Gb/s devices
Audio	ADI 1986A 6-channel audio
	Supports Jack Sensing and Enumeration Technology
	Supports Universal Audio Jack
	S/PDIF out interface
USB	Supports up to 8 USB 2.0 ports
LAN	RTL8111B 1000/100/10 Ethernet LAN
Overclocking
	ASUS C.P.R. (CPU Parameter Recall)
Features	Adjustable CPU voltage at 0.0125 V increment
	SFS (Stepless Frenquency Selection) from 100MHz up
	to 450 MHz at 1MHz increment
	4-Step DRAM voltage control

ASUS special features

BIOS features

ASUS CrashFree BIOS 2

ASUS Q-Fan

4 Mb Flash ROM, AMI BIOS , PnP, DMI2.0, WfM2.0, SM BIOS 2.3, ASUS EZ Flash, ASUS CrashFree BIOS 2, ASUS MyLogo

Back Panel I/O	1 x Parallel port
Ports	1 x Serial port
	1 x S/PDIF Out port
	1 x PS/2 keyboard port
	1 x PS/2 mouse port
	1 x RJ45
	4 x USB 2.0/1.1
	6-Channel Audio I/O
	(continued on the next page)

x

P5PL2 specifications summary

Internal I/O connectors

Manageability

Support CD contents

Accessories

Form Factor

1 x 24-pin ATX power connector

1 x 4-pin ATX 12V power connector

2 x USB connectors for 4 additional USB 2.0 ports 1 x CD audio-in connector

1 x GAME/MIDI connector

1 x Front panel High Definition Audio connector Chassis Intrusion

CPU/Chassis/ Power Fan connectors

WOL by PME, WOR by PME, Chassis Intrusion

Drivers

ASUS PC Probe II

ASUS LiveUpdate Utility

Anti-Virus software

AI Booster

1 x IDE cable

2 x SATA cable

1 x SATA power cables for 2 SATA Devices

1 x UltraDMA 133/100/66 cable

1 x FDD cable

1 x I/O Shield Userʼs manual

ATX Form Factor, 12”x7.5”(30.5cm x 18.8cm)

*Specifications are subject to change without notice.

xi

xii

This chapter describes the motherboard		1
features and the new technologies
it supports.		Product
	introduction

	Chapter summary	1

1.1	Welcome!..............................................................................	1-1
1.2	Package contents .................................................................	1-1
1.3	Special features....................................................................	1-2

ASUS P5PL2

1.1Welcome!

Thank you for buying an ASUS® P5PL2 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 P5PL2 motherboard
I/O modules	USB 2.0 (2 ports) module
Cables	1 x 2 in 1 ATA/FDD cable
	2 x SATA cables
	2 x SATA power cables
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.

ASUS P5PL2

1-1

1.3Special features

1.3.1Product highlights

Intel ® LGA775 Pentium 4 CPU

This motherboard supports the latest Pentium 4 CPU from Intel in LGA775 package. With 800/533MHz FSB, Hyper-Threading Technology and corespeeds up to 3.8GHz and beyond, Intelʼs LGA775 Pentium 4 is one of the fastest desktop processors to date. See page 2-6 for details.

Dual-Core CPU

Enjoy the extraordinary CPU power from the latest dual-core CPU. The advanced processing technology contains two physical CPU cores with individually dedicated L2 cache to satisfy the rising demand for more powerful processing capability.

64-bit CPU support

64-bit computing, the next generation technology to replace current 32-bit architecture, delivers advanced system performance, faster memory access and increased productivity. This motherboard provides excellent compatibility and flexibility by supporting either 64-bit or 32-bit architecture.

Dual Channel DDRII 533

DDR2 is the next generation memory technology to replace the current DDR. With initial speeds of 400 and 533MHz, DDR2 memory provides bandwidth up to 4.3GB/s. Doubled by the dual-channel architecture, the widest memory bus bandwidth 8.6GB/s is achieved on this motherboard.

6 Channel Audio and SoundMax Digital Audio

SoundMAX Digital Audio System can output 5.1 channel surround sound and features state-of-the-art DLS2 MIDI synthesizer with Yamaha DLSbyXG sound set, 5.1 Virtual TheaterTM and supports and major game audio technologies including Microsoft DirectXTM 8.0, Microsoft DirectSound 3D, A3D, MacroFX, ZoomFX, MultiDrive 5.1, A3D and EAX. See pages 2-21 to 2-22 for details.

Serial ATA technology

The motherboard supports the Serial ATA technology through the Serial ATA interfaces. The SATA specification allows for thinner, more flexible cables with lower pin count, reduced voltage requirement, and up to 300 MB/s data transfer rate. See pages 2-24 for details.

1-2	Chapter 1: Product introduction

S/PDIF-out on Back I/O Port

This motherboard provides convenient connectivity to external home theater audio systems via an S/PDIF-out (SONY-PHILIPS Digital Interface) jack. It allows to transfer digital audio without converting to analog format and keeps the best signal quality. See pages 2-22 for details.

PCI Express™ interface

The motherboard fully supports PCI Express, the latest I/O interconnect technology that speeds up the PCI bus. PCI Express features point-to-point serial interconnections between devices and allows higher clockspeeds by carrying data in packets. This high speed interface is software compatible with existing PCI specifications. See page 2-18 for details.

ASUS 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.

1.3.2Innovative ASUS features

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 the BIOS automatically restores the CPU default setting for each parameter.

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 page 4-5 for details.

ASUS Q-Fan technology

The ASUS Q-Fan technology smartly adjusts the fan speeds according to the system loading to ensure quiet, cool, and efficient operation.

See page 4-34 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 5-8 for details.

ASUS P5PL2

1-3

1-4

Chapter 1: Product introduction

This chapter 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.

Hardware2 information

	Chapter summary	2

2.1	Before you proceed ..............................................................	2-1
2.2	Motherboard overview..........................................................	2-2
2.3	Central Processing Unit (CPU) ..............................................	2-6
2.4	System memory..................................................................	2-13
2.5	Expansion slots...................................................................	2-16
2.6	Jumpers ..............................................................................	2-19
2.7	Connectors .........................................................................	2-21

ASUS P5PL2

2.1Before 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. The green LED 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.

P5PL2	SB_PWR
ON		OFF
Standby		Powered
Power		Off
P5PL2 Onboard LED

ASUS P5PL2

2-1

2.2Motherboard 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.

2.2.1Placement 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.

2.2.2Screw 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

P5PL2

2-2	Chapter 2: Hardware information

2.2.3Motherboard layout

		18.8cm(7.5in)
T:Mouse										FAN
PS/2KBMS										CPU
B:Keyboard
ATX12V										ANFR PW
SPDIF_O		LGA775
PARALLEL PORT					bit,240-pin module)	bit,240-pin module)	64(bit,240-pin module)	64(bit,240-pin module)
COM1
USB12				P5PL2	DDR2 DIMM A1 (64	DDR2 DIMM A2 (64	DDR2 DIMM B1	DDR2 DIMM B2	EATXPWR		30.5cm(12.0in)
USBPW34		Intel MCH
LAN_USB34		945PL
Top:Line In
Center:Line Out
Below:Mic In
		R
USBPW12
		PCIEX16
		CLRTC
	PCIEX1_2	CR2032 3V
		Lithium Cell
		CMOS Power
		PCI1			Intel ICH7
RLT8111B
SPDIF_OUT		PCI2
Audio	SB_PWR			4Mb		SATA1	SATA4
		PCI3				SATA2	SATA3
CD				BIOS
		Super I/O	PRI_IDE
GAME	PCIEX1_1							CHA_FAN1		CHASSIS
				USBPW78
				USBPW56
AAFP	FLOPPY		USB56	USB78		PANEL

ASUS P5PL2

2-3

2.2.4Layout contents

	Slots		Page
	1.	PCI-E x16	2-18
	2.	PCI-E x 1	2-18
	3.	PCI	2-18
	Jumpers		Page
	1.	Clear RTC RAM (3-pin CLRTC)	2-20
	2.	USB Device wake-up (3-pin USBPW12, USBPW34,	2-21
		USBPW56, USBPW78)

Rear panel connectors		Page
1.	PS/2 mouse port (green)	2-22
2.	Parallel port	2-22
3.	LAN (RJ-45) port	2-22
4.	Line In port (light blue)	2-22
5.	Line Out port (lime)	2-22
6.	Microphone port (pink)	2-22
7.	USB 2.0 ports 3 and 4	2-23
8.	USB 2.0 ports 1 and 2	2-23
9.	Serial port (COM1)	2-23
10.	Coaxial S/PDIF Out port	2-23
11.	PS/2 keyboard port (purple)	2-23

2-4	Chapter 2: Hardware information

Internal connectors		Page
1.	Floppy disk drive connector (34-1 pin FLOPPY)	2-23
2.	ICH7 Primary IDE connector (40-1 pin PRI_IDE)	2-24
3.	Serial ATA connectors (7-pin SATA1 [red], SATA2 [red],	2-25
	SATA3 [black], SATA4 [black])
4.	Optical drive audio connector (4-pin CD)	2-26
5.	Front panel audio connector (10-1 pin AAFP)	2-26
6.	USB connectors (10-1 pin USB56, USB78)	2-27
7.	GAME/MIDI port connector (16-1 pin GAME)	2-27
8.	CPU, Chassis, and Power Fan connectors (4-pin CPU_FAN,	2-28
	3-pin CHA_FAN1, PWR_FAN)
9.	Chassis intrusion connector (4-1 pin CHASSIS)	2-28
10. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)		2-29
11.	System panel connector (20-1 pin PANEL)	2-30

System power LED (Green 3-pin PLED)

Hard disk drive activity LED (Red 2-pin IDE_LED)

System warning speaker (Orange 4-pin SPEAKER)

ATX power button/soft-off button (Yellow 2-pin PWRSW)

Reset button (Blue 2-pin RESET)

ASUS P5PL2

2-5

2.3Central Processing Unit (CPU)

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

•Upon purchase of the motherboard, make sure that the PnP cap is on the socket and the socket contacts are not bent. Contact your retailer immediately if the PnP cap is missing, or if you see any damage to the PnP cap/socket contacts/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 contacts resulting from incorrect CPU installation/removal, or misplacement/loss/incorrect removal of the PnP cap.

2.3.1Installing the CPU

To install a CPU:

1.Locate the CPU socket on the motherboard.

P5PL2

P5PL2 CPU Socket 775

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

2-6	Chapter 2: Hardware information

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

Retention tab

A

Load lever

PnP cap

B

This side of the socket 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
		Load 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

Gold triangle mark

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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!

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

The motherboard supports Intel® Pentium® 4 LGA775 processors with the Intel® Enhanced Memory 64 Technology (EM64T), Enhanced Intel SpeedStep® Technology (EIST), and Hyper-Threading Technology. Refer to the Appendix for more information on these CPU features.

2-8	Chapter 2: Hardware information

2.3.2Installing the CPU heatsink and fan

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

•When you buy a boxed Intel® Pentium® D 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® D 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

Motherboard hole

Narrow end	Fastener
of the groove

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

B

A

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

CPU_FAN

GND

CPU FAN PWR

CPU FAN IN

CPU FAN PWM

2P5PL

P5PL2 CPU Fan Connectors

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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