ASUS P5LD2 User Manual

P5LD2

Motherboard

E2706

Revised edition V4

July 2006

Copyright © 2006 ASUSTeK COMPUTER INC. All Rights Reserved.

No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK COMPUTER INC. (“ASUS”).

Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair, modification of alteration is authorized in writing 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 CONSEQUENTIALDAMAGES (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 MANUALOR 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
P5LD2 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 ASUS AI Lifestyle features .....................................		1-5
	1.3.3	Innovative ASUS features........................................	1-6

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 ....................................................	2-16
	2.4.4	Removing a DIMM ...................................................	2-16
2.5	Expansion slots....................................................................		2-17
	2.5.1 Installing an expansion card...................................		2-17
	2.5.2 Configuring an expansion card...............................		2-17
	2.5.3	Interrupt assignments . ..........................................	2-18
	2.5.4	PCI slots .................................................................	2-19
	2.5.5 PCI Express x16 slot..............................................		2-19
	2.5.6 PCI Express x1 slot................................................		2-19
2.6	Jumpers	...............................................................................	2-20
2.7	Connectors..........................................................................		2-22
	2.7.1	Rear panel connectors ...........................................	2-22
	2.7.2 ................................................	Internal connectors	2-24

iii

Contents

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	AFUDOS 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
	4.2.2	Menu bar................................................................	4-12
	4.2.3	Navigation keys.....................................................	4-12
	4.2.1	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, Third and Fourth 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
	4.4.2	LAN Cable Status..................................................	4-23
	4.4.3	USB Configuration..................................................	4-24
	4.4.4	CPU Configuration..................................................	4-25
	4.4.5	Chipset..................................................................	4-27
	4.4.6	Onboard Devices Configuration.............................	4-29
	4.4.7	PCI PnP...................................................................	4-31

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Contents

4.5	Power menu.........................................................................		4-33
	4.5.1	Suspend Mode.......................................................	4-33
	4.5.2 Repost Video on S3 Resume.................................		4-33
	4.5.3	ACPI 2.0 Support...................................................	4-33
	4.5.4	ACPI APIC Support.................................................	4-33
	4.5.5	APM Configuration.................................................	4-34
	4.5.6	Hardware Monitor..................................................	4-36
4.6	Boot menu...........................................................................		4-38
	4.6.1	Boot Device Priority...............................................	4-38
	4.6.2	Boot Settings Configuration..................................	4-39
	4.6.3	Security.................................................................	4-40
4.7	Exit menu............................................................................		4-43

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	Makedisk menu........................................................	5-3
	5.2.3	Utilities menu...........................................................	5-4
	5.2.4	Manuals menu..........................................................	5-5
	5.2.5	Contact information................................................	5-6
	5.2.6	Other information....................................................	5-6
5.3	Software information.............................................................		5-9
	5.3.1	ASUS MyLogo™........................................................	5-9
	5.3.2	AI NET2.................................................................	5-11
	5.3.3	Audio configurations..............................................	5-12
5.4	RAID configurations.............................................................		5-17
	5.4.1 Installing Serial ATA hard disks..............................		5-18
	5.4.2	Intel® RAID configurations.....................................	5-18
5.5	Creating a RAID driver disk..................................................		5-29

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

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.

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:
	format a:

ix

P5LD2 specifications summary

		LGA775 socket for Intel® Pentium® 4/Intel® Core™ 2
	CPU	Duo*/Intel® Core™ 2 Extreme* processor
		* Only support PCB 2.0 or higher
		Compatible with Intel® PCG 06*, 05B/05A and 04B/04A
		and the latest Intel® Smithfield dual-core processor
		Supports Intel® Enhanced Memory 64Technology(EM64T)
		Supports Enhanced Intel SpeedStep® Technology (EIST)
		Supports Intel® Hyper-Threading Technology
	Chipset	Northbridge: Intel® 945P Memory Controller (MCH)
		Southbridge: Intel® ICH7R
	Front Side Bus	1066/800/533 MHz
	Memory
		Dual-channel memory architecture
		4 x 240-pin DIMM sockets support unbufferred non-ECC
		DDR2-667/DDR2-533/DDR2-400 MHz memory modules
		Up to 4 GB system memory
	Expansion slots	1 x PCI Express x16 slot
		3 x PCI Express x1 slots
		3 x PCI slots
	Storage	Intel® ICH7R South Bridge supports:
		- 2 x Ultra ATA 100/66/33 hard disk drives
		- 4 x Serial ATA hard disks with RAID 0, RAID 1,
		RAID 5, RAID 10 and the Intel® Matrix Storage
		Technology
		ITE 8211F IDE controller supports:
		- 4 x Ultra ATA 133/100/66 hard disk drives
	High Definition
		Intel® High Definition Audio (HD Audio)
	Audio	ALC882 7.1 channel audio CODEC
		Coaxial S/PDIF Out port
		Optical S/PDIF Out port
	USB	Supports up to 8 USB 2.0 ports
	LAN
		Marvell® 88E8053 PCI Express™ Gigabit LAN controller
		Supports Marvell® Virtual Cable Tester technology
		Supports POST Network-diagnostic program
	Overclocking features
		ASUS AI Overclocking
		ASUS NOS™ (Non-delay Overclocking System)
		ASUS C.P.R. (CPU Parameter Recall)
		Fixed PCI Express/PCI/SATA frequencies

(continued on the next page)

P5LD2 specifications summary

Overclocking features (continuation)

Special features

BIOS features

Rear panel

Internal connectors

Power Requirement

Form Factor

Precision Tweaker supports:

•8-step DRAM voltage control

•Adjustable CPU core voltage at 0.0125 V increment

•Adjustable PCI Express frequency from 90 MHz up to 150 MHz at 1 MHz increment

•Stepless Frequency Selection (SFS) from 100 MHz up to 450 MHz at 1 MHz increment

ASUS Q-Fan

ASUS CrashFree BIOS 2

ASUS MyLogo

4 Mb FLASH ROM, AMI BIOS, PnP, DMI2.0, SM BIOS 2.3, WfM2.0

1 x Parallel port

1 x LAN (RJ-45) port

4 x USB 2.0 ports

1 x Coaxial S/PDIF Out port

1 x Optical S/PDIF Out port

1 x PS/2 keyboard port (purple)

1 x PS/2 mouse port (green)

1 x Serial port (COM1)

8-channel audio ports

1 x Floppy disk drive connector

1 x ICH7R Primary IDE connector

2 x ITE IDE connectors

4 x Serial ATA connectors

1 x Optical drive audio connector

1 x Front panel High Definition Audio connector

2 x USB port connectors

1 x GAME/MIDI port connector

CPU, chassis (x2), and power fan connectors Chassis intrusion connector

ATX power connectors (24-pin and 4-pin) System panel connector

ATX power supply (with 24-pin and 4-pin 12 V plugs) ATX 12 V 2.0 compliant

ATX form factor: 12 in x 9 in (30.5 cm x 23 cm)

(continued on the next page)

xi

P5LD2 specifications summary

Support CD	Device drivers
contents	ASUS PC Probe II
	ASUS Update
	ASUS AI Booster
	Microsoft® DirectX
	Anti-Virus Utility
	Adobe Acrobat Reader
	ASUS Screensaver

*Specifications are subject to change without notice.

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 P5LD2

1.1Welcome!

Thank you for buying an ASUS® P5LD2 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 P5LD2 motherboard
I/O modules	USB 2.0 (2 ports) and GAME (1 port) module
Cables	2 x Serial ATA signal cables
	1 x Serial ATA power cables (dual plugs)
	1 x Ultra ATA/133 cable
	40-conductor IDE cable
	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.

ASUS P5LD2

1-

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 1066/800/533 MHz Front Side Bus (FSB). The motherboard also supports the Intel® Hyper Threading Technology and is fully compatible with Intel® 06 (for PCB 2.0 or higher only) 05B/05A or 04B/04A processors. See page 2-6 for details.

Intel® Core™2 Processor Ready (Only PCB 2.0 or higher support)

This motherboard supports the latest Intel® Core™2 processor in the LGA775 package. With the new Intel® Core™ microarchitecture technology and 1066/800MHz FSB, Intel® Core™2 processor is one of the most powerful and energy efficient CPU in the world.

Enhanced Intel SpeedStep® Technology (EIST)

The Enhanced Intel SpeedStep® Technology (EIST) intelligently manages the CPU resources by automatically adjusting the CPU voltage and core frequency depending on the CPU loading and system speed or power requirement. See page 4-26 and the Appendix for details.

Intel® 945P chipset

The Intel® 945P Memory Controller Hub (MCH) and the ICH7R I/O controller hub provide the vital interfaces for the motherboard. The MCH provides the processor, dual channel memory, and PCI Express interfaces.

The Intel® ICH7R Southbridge represents the seventh generation I/O controller hub that provides the interface for the storage, I/O, PCI Express, and 8 channel high definition audio interfaces.

DDR2 memory support

The motherboard supports DDR2 memory which features data transfer rates of 667/533/400 MHz to meet the higher bandwidth requirements of the latest 3D graphics, multimedia, and Internet applications. The dual-channel DDR2 architecture doubles the bandwidth of your system memory to boost system performance, eliminating bottlenecks with peak bandwidths of up to 10.7 GB/s. See pages 2­13 to 2-16 for details.

1-	Chapter 1: Product introduction

Serial ATA technology

The motherboard supports the Serial ATA technology through the Serial ATA interfaces and the Intel® ICH7R. 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 2-25 to 2 26 for details.

Onboard RAID solution

The Intel® ICH7R allows RAID 0, RAID 1, RAID 5, and RAID 10 configuration for four SATA connectors and supports the Intel® Matrix Storage Technology. See pages 2 26, 2-27, and 5 18 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 to­point 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 2-20 for details.

8-channel high definition audio

Onboard is the Realtek® ALC882 High Definition Audio 8-channel audio

CODEC. This CODEC is fully-compliant with Intel® High Definition Audio standard (192 KHz, 24-bit audio). With the CODEC, 8-channel audio ports, and S/PDIF interfaces, you can connect your computer to home theater decoders to produce crystal clear digital audio.

The Realtek® ALC882 CODEC comes with a software application that features jack detection to monitor the plugging status of each jack, impedance sensing to determine audio device classes, and pre-defined equalization for various audio devices. See pages 2-22, 2-23, and 5-12 for details.

S/PDIF digital sound ready

The motherboard supports the S/PDIF technology through the coaxial and optical S/PDIF Out ports on the rear panel. The S/PDIF technology turns your computer into a high-end entertainment system with digital connectivity to powerful audio and speaker systems. See pages 2-23 for details.

ASUS P5LD2

1-

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 pages 2-23 and 2-28 for details.

Gigabit LAN solution

The motherboard comes with a PCI Express Gigabit LAN controller to provide a total solution for your networking needs. The Gigabit LAN controller uses the PCI Express segment to provide faster data bandwidth. See pages 2-22, and 5-11 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 4-37 for details.

1-	Chapter 1: Product introduction

1.3.2ASUS AI Lifestyle features

AI Quiet

The ASUS AI Quiet function dynamically controls CPU speed and reduces temperature and fan speeds, thus minimizing noise and ensuring quiet operation. See page 4-36 for details.

WiFi-TV Card (optional)

The ASUS WiFi-TV card complies with the IEEE 802.11a/b/g standard for wireless LAN and allows data transmission of up to 54 Mbps. ASUS provides full software application support and a user-friendly wizard to help you

set up your wireless local area network effortlessly. You can share photos, videos, and MP3 files with other wireless devices without tangling cables and wires.

The ASUS WiFi-TV card also offers digital TV (for DVB-T only) connection, which presents higher TV resolution and more functions compared to the traditional analog TV standard. This multi-functional card also supports FM radio.

1.3.3Innovative ASUS features

AI NOS™ (Non-Delay Overclocking System)

ASUS Non-delay Overclocking System™ (NOS) is a technology that auto detects the CPU loading and dynamically overclocks the CPU speed only when needed. See page 4-22 for details.

AI NET2

AI NET2 is a BIOS-based diagnostic tool that detects and reports Ethernet cable faults and shorts. With this utility, you can easily monitor the condition of the Ethernet cable connected to the LAN (RJ-45) port. During the bootup process, AI NET2 immediately diagnoses the LAN cable and reports shorts and faults up to 100 meters at 1 meter accuracy. See pages 4-23 and 5-11 for details.

Fanless Design

The ASUS fanless design allows multi-directional heat flow from major thermal sources in the motherboard to lower overall system temperature, resulting in quieter operation and longer system life.

ASUS P5LD2

1-

Precision Tweaker

This feature allows you to fine-tune the CPU/memory voltage and gradually increase the Front Side Bus (FSB) and PCI Express frequency to achieve maximum system performance. See pages 4-20 to 4-21 for details.

PEG Link Mode

This feature enhances your PCI Express graphics card performance by allowing the motherboard to automatically adjust the PCI Express graphics link mode to the correct frequency based on the system configuration.

Four additional settings are available for overclocking the PEG Link Mode. See page 4-28 for details.

ASUS Hyper Path 3

This feature significantly shortens latency time during data transfers, allowing users to experience the real power of their computers. See page 4-28 for details.

CPU Lock Free

This feature allows you to adjust the CPU multiplier to 14x. Setting the appropriate BIOS setting automatically reduces the CPU multiplier value for more flexibility when increasing external FSB. See page 4-25 for details.

CrashFree BIOS 2

This feature allows you to restore the original BIOS data from the support CD in case when the BIOS codes and data are corrupted. This protection

eliminates the need to buy a replacement ROM chip. See 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 36 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 5-9 for details.

1-	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....................................................................	2-17
2.6	Jumpers...............................................................................	2-20
2.7	Connectors..........................................................................	2-22

ASUS P5LD2

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.

P5LD2
	SB_PWR
	ON	OFF
P5LD2 Onboard LED	Standby	Powered
	Power	Off

ASUS P5LD2

2-

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

P5LD2

2-	Chapter 2: Hardware information

2.2.3Motherboard layout

23cm (9in)

PS/2KBMS	KBPWR
T: Mouse
B: Keyboard	ATX12V
SPDIF_O1
SPDIF_O2 PORT
PARALLEL

COM1

LGA775

USB12 USBPW34

USBPW12

LAN_USB34

Top:
Back surround L/R							Intel
Below:Bass
Center:
Side surround L/R							945P
Center:Line Out
Top:Line In
Below:Mic In
					PCIEX1_1
	Marvell
	88E8053					PCIEX16
						PCI1

CHA_FAN2

P5LD2

CPU_FAN

module)		module)		module)		module)			PWR FAN
bit,240-pin		bit,240-pin		bit,240-pin		bit,240-pin
DIMM A1 (64		DIMM A2 (64		DIMM B1 (64		DIMM B2 (64
DDR2		DDR2		DDR2		DDR2		EATXPWR		30.5cm (12.0in)
						PRI IDE

®

ALC882			CD	PCI2

AAFP

PCI3

LPC I/O	PCIEX1_2	Intel FWH
Winbond		4Mbit
W83627EHF
	PCIEX1_3
	FLOPPY

8211F

CR2032 3V

ITE

Lithium Cell

CMOS Power

USBPW56

USBPW78

SB_PWR

USB56

USB78

Intel		SATA4
ICH7R		SATA3
	SATA1	SATA2	FAN1
			CHA
SEC_EIDE	CLRTC
PRI_EIDE
		CHASSIS
	GAME		PANEL

ASUS P5LD2

2-

2.2.4Layout contents

Slots Page

	1.	DDR2 DIMM slots	2-13
	2.	PCI slots	2-19
	3.	PCI Express slot	2-19
	Jumpers		Page
	1.	Clear RTC RAM (3-pin CLRTC)	2-20
	2.	USB Device wake-up (3-pin USBPW12, USBPW34,	2-21
		USBPW56, USBPW78)

3.Keyboard power (3-pin KBPWR)

	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.	Side Speaker Out port (black)	2-22
	5.	Center/Subwoofer port (yellow orange)	2-22
	6.	Line In port (light blue)	2-22
	7.	Line Out port (lime)	2-22
	8.	Microphone port (pink)	2-23
	9.	Rear Speaker Out (gray)	2-23
	10.	USB 2.0 ports 3 and 4	2-23
	11.	USB 2.0 ports 1 and 2	2-23
	12.	Serial port (COM1)	2-23
	13.	Optical S/PDIF Out port	2-23
	14.	Coaxial S/PDIF Out port	2-23
	15.	PS/2 keyboard port (purple)	2-23

2-	Chapter 2: Hardware information

Internal connectors		Page
1.	Floppy disk drive connector (34-1 pin FLOPPY)	2-24
2.	ITE IDE connectors (40-1 pin PRI_EIDE [red], SEC_EIDE [red])	2-24
3.	ICH7R Primary IDE connector (40-1 pin PRI_IDE)	2-25
4.	Serial ATA connectors (7-pin SATA1 [red], SATA2 [red],	2-25
	SATA3 [black], SATA4 [black])
5.	Optical drive audio connector (4-pin CD)	2-27
6.	Front panel audio connector (10-1 pin AAFP)	2-27
7.	USB connectors (10-1 pin USB56, USB78)	2-28
8.	GAME/MIDI port connector (16-1 pin GAME)	2-28
9.	CPU, Chassis, and Power Fan connectors (4-pin CPU_FAN,	2-29
	3-pin CHA_FAN1, CHA_FAN2, PWR_FAN)
10.	Chassis intrusion connector (4-1 pin CHASSIS)	2-29
11.	ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)	2-30
12.	System panel connector (20-1 pin PANEL)	2-31
	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 P5LD2

2-

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.

P5LD2

P5LD2 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-	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 key

Gold triangle mark

ASUS P5LD2

2-

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-	Chapter 2: Hardware information