Asus P5KPL-CM User Manual

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P5KPL-CM

Motherboard

E4208

Third Edition V3

September 2008

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 OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.

SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.

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

Contents

Notices.........................................................................................................	vi
Safety information......................................................................................	vii
About this guide........................................................................................	viii
P5KPL-CM 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	ASUS Special 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	Installing the CPU ............................................................	1-8
	1.6.2	Installing the CPU heatsink and fan ...............................	1-11
	1.6.3	Uninstalling the CPU heatsink and fan ..........................	1-13
1.7	System memory..........................................................................		1-14
	1.7.1	Overview ........................................................................	1-14
	1.7.2	Memory configurations . .................................................	1-15
	1.7.3	Installing a DIMM ...........................................................	1-19
	1.7.4	Removing a DIMM .........................................................	1-19
1.8	Expansion slots..........................................................................		1-20
	1.8.1	Installing an expansion card ..........................................	1-20
	1.8.2	Configuring an expansion card ......................................	1-20
	1.8.3	Interrupt assignments ....................................................	1-21
	1.8.4	PCI slot ..........................................................................	1-22
	1.8.5	PCI Express x1 slot . ......................................................	1-22
	1.8.6	PCI Express x16 slot . ....................................................	1-22
1.9	Jumpers	.......................................................................................	1-23
1.10	Connectors..................................................................................		1-25
	1.10.1 ..................................................	Rear panel connectors	1-25
	1.10.2 ........................................................	Internal connectors	1-27

iii

Contents

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 2 utility...................................................	2-3
	2.1.3	AFUDOS utility................................................................	2-4
	2.1.4	ASUS CrashFree BIOS 3 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
	2.3.5	IDE Configuration..........................................................	2-16
	2.3.6	System Information........................................................	2-17
2.4	Advanced menu..........................................................................		2-18
	2.4.1	Jumperfree Configuration..............................................	2-18
	2.4.2	USB Configuration.........................................................	2-20
	2.4.3	CPU Configuration.........................................................	2-22
	2.4.4	Chipset .........................................................................	2-24
	2.4.5	Onboard Devices Configuration....................................	2-26
	2.4.6	PCI PnP.........................................................................	2-27
2.5	Power menu................................................................................		2-28
	2.5.1	Suspend Mode..............................................................	2-28
	2.5.2	ACPI 2.0 Support...........................................................	2-28
	2.5.3	ACPI APIC Support.......................................................	2-28

Contents

	2.5.4	APM Configuration .......................................................	2-29
	2.5.5	Hardware Monitor..........................................................	2-30
2.6	Boot menu...................................................................................		2-31
	2.6.1	Boot Device Priority.......................................................	2-31
	2.6.2	Boot Settings Configuration...........................................	2-32
	2.6.3	Security..........................................................................	2-33
2.7	Tools menu..................................................................................		2-35
	ASUS EZ Flash 2..........................................................................		2-35
2.8	Exit menu.....................................................................................		2-36

Chapter 3:		Software support
3.1	Installing an operating system....................................................		3-2
3.2	Support DVD information.............................................................		3-2
	3.2.1	Running the support DVD................................................	3-2
	3.2.2	Drivers menu...................................................................	3-3
	3.2.3	Utilities menu...................................................................	3-4
	3.2.4	Manual menu...................................................................	3-5
	3.2.5	ASUS Contact information...............................................	3-6

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.

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.

This symbol of the crossed out wheeled bin indicates that the product (electrical and electronic equipment, Mercury-containing button cell battery) should not be placed in municipal waste. Check local regulations for disposal of electronic products.

vii

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. It 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 DVD 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

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 /iP5KPLCM.ROM

P5KPL-CM specifications summary

	CPU	LGA775 socket for Intel® Core™2 Extreme/ Core™2
		Quad / Core™2 Duo / Pentium® D / Pentium® 4 /
		Celeron® E1000 Series and Celeron® 400 Series
		Processors
		Supports Intel® next generation 45nm CPU
		Intel® Hyper-Threading Technology ready
		Supports enhanced Intel SpeedStep® Technology (EIST)
		(Refer to www.asus.com for Intel CPU support list)
	Chipset	Northbridge: Intel® G31
		Southbridge: Intel® ICH7
	Front Side Bus	1600 (O.C.) / 1333 / 1066 / 800 MHz
	Memory	2xDIMM,max.4GB,DDR21066(O.C.)/800/667MHz,
		non-ECC, un-buffered memory
		Dual channel memory architecture
		(Refer to www.asus.com or user manual for Memory Quality
		Vendor List)
	Expansion Slots	1 x PCI Express x16 slot
		1 x PCI Express x1 slot
		2 x PCI slots
	VGA	Intel Graphics Media Accelerator (Intel® GMA 3100)
		integrated
		Maximum resolution: 2048 x 1536 x 32 bpp (@75Hz)
		Horizontal: 127.5KHz, Vertical: 85Hz
	Storage	Southbridge Intel® ICH7 supports:
		- 1 x UltraDMA 100 / 66 / 33 hard disk drives
		- 4 x SATA 150/300 ports
	LAN	ATHEROS AR8121 PCIE Gigabit LAN controller
	Audio	VIAVT 1708B, 8-CH High-DefinitionAudio CODEC
	USB	Max. 8 x USB 2.0 ports (4 ports at mid-board, 4 ports
		at back panel)
	ASUS Features	ASUS CrashFree BIOS 3
		ASUS Q-Fan
		ASUS EZ Flash 2
		ASUS MyLogo 2
	Rear panel	1 x PS/2 keyboard port
		1 x PS/2 mouse port
		1 x Parallel port
		1 x VGA port
		1 x COM
		1 x LAN (RJ-45) port
		4 x USB 2.0 ports
		8-channel audio I/O port
		(continued on the next page)

P5KPL-CM specifications summary

Internal I/O connectors	2 x USB connectors supports additional 4 USB ports
	1 x Internal Speaker connector
	1 x CPU fan connector
	1 x Chassis fan connector
	1 x Power fan connector
	1 x Chassis intrusion connector
	1 x Front panel high definition audio connector
	2 x 5pin Front panel
	1 x S/PDIF Out connector
	1 x CD audio in connector
	1 x 24-pin EPS 12V Power connector
	1 x 4-pin ATX 12V Power connector
BIOS	8Mb Flash ROM, AMI BIOS, PnP, DMI2.0, WfM2.0,
	SM BIOS 2.4
Manageability	WOL, PXE, RPL, WOR, PME Wake Up
Support DVD contents	Drivers
	ASUS PC Probe II
	ASUS Update utility
Accessories	1 x Serial ATA cable
	1 x Serial ATA power cable
	1 x UltraDMA 100/66/33 cable
	1 x Floppy disk drive cable
	I/O shield
	User manual
Form factor	uATX form factor: 9.6 in x 8 in (24.5 cm x 20.3 cm)

*Specifications are subject to change without notice.

xii

This chapter describes the motherboard features and the new technologies

it supports.

Product1 introduction

1.1Welcome!

Thank you for buying an ASUS® P5KPL-CM 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 P5KPL-CM
Cables	1 x Ultra DMA 100/66/33 cable
	1 x SATA cable
	1 x SATA power cable
	1 x Floppy disk drive cable
Accessories	I/O shield
Application DVD	ASUS motherboard support DVD
Documentation	User guide

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

1.3Special features

1.3.1Product highlights

Green ASUS

This motherboard and its packaging comply with the European Union’s Restriction on the use of Hazardous Substances (RoHS). This is in line with theASUS vision of creating environment-friendly and recyclable products/packaging to safeguard consumers’ health while minimizing the impact on the environment.

LGA775 Intel® Quad-core Processor Ready

This motherboard supports the latest powerful and energy efficient processors from Intel. Intel® Quad-core is based on the Intel Core Microarchitecture process technology that allows users to step up to new levels of gaming experience and multi-tasking performance.

Combined with 1600 (O.C.) / 1333 / 1066 / 800 of front side bus (FSB), this motherboard guarantees enhanced user experience in the digital home and office.

1-	Chapter 1: Product introduction

Intel® Core™2 Processor Ready

This motherboard supports the latest Intel® Core™2 processor in the LGA775 package. With the new Intel® Core™ microarchitecture technology and 1600 / 1333 / 1066/800MHzFSB,the Intel® Core™2 processor is designed to provide powerful

and energy efficient performance.

Intel® G31 chipset

The Intel® G31 Express Chipset boosts your gaming and multimedia experience with integrated graphic engine Intel® Graphics Media Accelerator 3100. It supports

1333 / 1066 / 800 MHz front side bus (FSB), and delivers breakthrough advances in 3D and 2D graphics, and video capabilities. This integrated chipset contains one 16-lane PCI Express port intended for an external PCI Express graphics card and provides the interface for processor in the 775-land package, dual channel

DDR2 at speeds up to 800 MHz.

DDR2 memory support

The motherboard supports DDR2 memory that features data transfer rates of

667/800/1066(O.C.) 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 12.8 GB/s (up to 17.0 GB/s when O.C. 1066MHz). Without restriction to the memory size across the two channels, the motherboard allows you to install DIMMs with different memory size and enjoy dual-channel feature at the same time. See page 1-16 for details.

Serial ATA 3 Gb/s technology

This motherboard supports the next-generation hard drives based on the Serial

ATA(SATA) 3Gb/s storage specification, delivering enhanced scalability and doubling the bus bandwidth for high-speed data retrieval and saves. Easily backup photos, videos and other entertainment contents to external devices. See page 1-31 for details.

ASUS P5KPL-CM

8-channel high definition audio

Enjoy high-quality sound system on your PC! The onboard 8-channel HD audio

(High DefinitionAudio, previously codenamedAzalia) CODEC enables high-quality 192KHz/24-bit audio output, jack-detect feature, which automatically detects and identifies what types of peripherals are plugged into the audio I/O jacks and notifies users of inappropriate connection, meaning there will be no more confusion of Line-in, Line-out and Mic jacks.

1.3.2ASUS Special features

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.

ASUS MyLogo2™

This feature allows you to convert your favorite photo into a 256-color boot logo for a more colorful and vivid image on your screen.

ASUS EZ Flash 2

EZ Flash 2 is a user-friendly BIOS update utility. Simply press the predefined hotkey to launch the utility and update the BIOS without entering the OS. Update your BIOS easily without preparing a bootable diskette or using an OS-based flash utility.

ASUS CrashFree BIOS 3

The ASUS CrashFree BIOS 3 allows users to restore corrupted BIOS data from a

USB flash disk containing the BIOS file.

1-	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 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
P5KPL-CM	ON	OFF
	Standby	Powered
	Power	Off

P5KPL-CM Onboard LED

ASUS P5KPL-CM

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 six (6) 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

P5KPL-CM

1-	Chapter 1: Product introduction

1.5.3Motherboard layout

PS/2KBMS

T: Mouse

B: Keyboard

VGA COM1

20.3cm (8in)

CPU_FAN

CHA_FAN

Super I/O

ATX12V

LGA775

FLOPPY

USB34

	PWR_FAN
			USBPW
LAN_USB12

		_		PS2	R
					Intel G31

				Clock



AUDIO				Gen 954
				Gen 954	SPEAKER
				USB78

			P5KPL-CM
			PCI1
VT1708B	SPDIF_OUT		PCI2		SB_PWR
VT1708B	SPDIF_OUT
	AAFP	CD	CLRTC
	AAFP		BIOS
			BIOS		USB56
			CHASSIS	F_PANEL	USB56

			EATXPWR			24.5cm (9.6in)

					PRI IDE
			CR2032 3V
		Lithium Cell
		CMOS Power
SATA1	SATA3			SATA2
SATA1	SATA3			SATA2

Refer to section 1.10 Connectors for more information about rear panel connectors and internal connectors.

ASUS P5KPL-CM

1.6Central Processing Unit (CPU)

The motherboard comes with a surface mount LGA775 socket designed for the Intel® Core™2 Extreme / Core™2 Quad / Core™2 Duo / Pentium® D / Pentium® 4 and Celeron® E1000 Series and 400 Series processors.

•Make sure the AC power is off before you install the CPU.

• If installing a dual-core CPU, connect the chassis fan cable to the chassis fan connector to ensure system stability.

• 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

MerchandiseAuthorization (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.

1.6.1Installing the CPU

To install a CPU:

1.Locate the CPU socket on the motherboard.

P5KPL-CM

P5KPL-CM 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.

1-	Chapter 1: Product introduction

2.Press the load lever with your thumb (A), then move it to the left

(B)until it is released from the retention tab.

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

Retention tab

Load lever

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

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

PnP cap Load plate

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

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!

Gold triangle mark

Alignment key

ASUS P5KPL-CM

6.Apply several drops of thermal paste to the exposed area of the CPU that the heatsink will be in contact with, ensuring that it is spread in an even thin layer.

Some heatsinks come with preapplied thermal paste. If so, skip this step.

The Thermal Interface Material is toxic and inedible. If it gets into your eyes or touches your skin, ensure to wash it off immediately, and seek professional medical help.

To prevent contaminating the paste, DO NOT spread the paste with your finger directly.

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

The motherboard supports Intel® LGA775 processors with the Intel® Enhanced Memory 64 Technology (EM64T), Enhanced Intel SpeedStep® Technology (EIST), and Hyper-Threading Technology.

1-10	Chapter 1: Product introduction

1.6.2Installing the CPU heatsink and fan

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

•When you buy a boxed Intel® 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® 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.

2.Push down two fasteners at a time in a diagonal sequence to secure the heatsink and fan assembly in place.

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

ASUS P5KPL-CM

1-11

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

CPU_FAN

CPU FAN PWM

CPU FAN IN

CPU FAN PWR

GND

P5KPL-CM

P5KPL-CM CPU Fan Connector

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

1-12	Chapter 1: Product introduction

1.6.3Uninstalling the CPU heatsink and fan

To uninstall the CPU heatsink and fan			A
1.	Disconnect the CPU fan cable from		B
	the connector on the motherboard.		B
2.	Rotate each fastener
3.	counterclockwise.		A
	Pull up two fasteners at a time in a
	diagonal sequence to disengage the
	heatsink and fan assembly from the
	motherboard.
	A	B

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

ASUS P5KPL-CM

1-13

1.7System memory

1.7.1Overview

The motherboard comes with two Double Data Rate 2 (DDR2) Dual Inline Memory Modules (DIMM) sockets.

A DDR2 module has the same physical dimensions as a DDR DIMM but has a 240-pin footprint compared to the 184-pin DDR DIMM. DDR2 DIMMs are notched differently to prevent installation on a DDR DIMM socket.

The figure illustrates the location of the DDR2 DIMM sockets:

DIMM A1

DIMM B1

Pins112

Pins128

P5KPL-CM

P5KPL-CM 240-pin DDR2 DIMM Sockets

Channel	Sockets
Channel A	DIMM_A1
Channel B	DIMM_B1

Install a memory module in DIMM_A1 slot to support the Intel® Quiet System Technology and for optimum performance.

1-14	Chapter 1: Product introduction

1.7.2Memory configurations

You may install 256 MB, 512 MB, 1 GB and 2 GB unbuffered non ECC DDR2 DIMMs into the DIMM sockets.

•You may install varying memory sizes in ChannelAand Channel B. The system maps the total size of the lower-sized channel for the dual-channel configuration.Any excess memory from the higher-sized channel is then mapped for single-channel operation.

•Always install DIMMs with the same CAS latency. For optimum compatibility, it is recommended that you obtain memory modules from the same vendor.

•When installing total memory of 4GB capacity or more, Windows 32bit operation system may only recognize less than 3GB. Hence, a total installed memory of less than 3GB is recommended.

•This motherboard does not support memory modules made up of 128 Mb chips or double sided x16 memory modules.

Notes on memory limitations

• Due to chipset limitation, this motherboard can only support up to

4 GB on the operating systems listed below. You may install a maximum of 2 GB DIMMs on each slot, but only DDR2-800 and DDR2-667 2 GB density modules are available for this configuration.

32-bit	64-bit
Windows® XP	Windows® XP x 64 Edition
Windows® Vista	Windows® Vista x 64 Edition

•Some old-version DDR2-800 DIMMs may not match Intel® On-Die-Termination (ODT) requirement and will automatically downgrade to run at DDR-667. If this heppens, contact your memory vendor to check to ODT value.

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