Asus P5KPL User Manual

Motherboard

P5KPL

ii

E3281

First Edition
July 2007

Copyright © 2007 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, modied or altered, unless
such repair, modication of alteration is authorized in writing by ASUS; or (2) the serial number of the

product is defaced or missing.

ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS
DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS,
LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE),
EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY
DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.

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

Products and corporate names appearing in this manual may or may not be registered trademarks or

copyrights of their respective companies, and are used only for identication or explanation and to the
owners’ benet, without intent to infringe.

iii

Contents

Notices ......................................................................................................... vi

Safety information ..................................................................................... vii

P5KPL specications 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

1.3.3 ASUS Overclocking 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

1.5.4 Layout contents ...............................................................

1-8

1.6 Central Processing Unit (CPU) ...................................................

1-9

1.6.1 Installing the CPU .........................................................

1-10

1.6.2 Installing the CPU heatsink and fan ..............................

1-12

1.6.3 Uninstalling the CPU heatsink and fan .........................

1-14

1.7 System memory .........................................................................

1-16

1.7.1 Overview .......................................................................

1-16

1.7.2 Memory congurations ..................................................

1-17

1.7.3 Installing a DIMM ..........................................................

1-21

1.7.4 Removing a DIMM ........................................................

1-21

1.8 Expansion slots ..........................................................................

1-22

1.8.1 Installing an expansion card .........................................

1-22

1.8.2 Conguring an expansion card .....................................

1-22

1.8.3 Interrupt assignments ...................................................

1-23

1.8.4 PCI slots ........................................................................

1-24

1.8.5 PCI Express x1 slot .......................................................

1-24

1.8.6 PCI Express x16 slot .....................................................

1-24

1.9 Jumpers ......................................................................................

1-25

iv

Contents

1.10 Connectors ................................................................................. 1-27

1.10.1 Rear panel connectors ..................................................

1-27

1.10.2 Internal connectors .......................................................

1-29

Chapter 2: BIOS setup

2.1 Managing and updating your BIOS ............................................ 2-2

2.1.1 Creating a bootable oppy disk .......................................

2-2

2.1.2 ASUS EZ Flash 2 utility ...................................................

2-4

2.1.3 AFUDOS utility ................................................................

2-5

2.1.4 ASUS CrashFree BIOS 3 utility ......................................

2-7

2.1.5 ASUS Update utility ........................................................

2-9

2.2 BIOS setup program ..................................................................

2-12

2.2.1 BIOS menu screen ........................................................

2-13

2.2.2 Menu bar .......................................................................

2-13

2.2.3 Navigation keys .............................................................

2-13

2.2.4 Menu items ...................................................................

2-14

2.2.5 Sub-menu items ............................................................

2-14

2.2.6 Conguration elds .......................................................

2-14

2.2.7 Pop-up window .............................................................

2-14

2.2.8 Scroll bar .......................................................................

2-14

2.2.9 General help .................................................................

2-14

2.3 Main menu ..................................................................................

2-15

2.3.1 System Time .................................................................

2-15

2.3.2 System Date .................................................................

2-15

2.3.3 Legacy Diskette A ........................................................

2-15

2.3.4 Primary, Third, and Fourth IDE Master/Slave .......................

2-16

2.3.5 IDE Conguration ..........................................................

2-17

2.3.6 System Information .......................................................

2-18

2.4 Advanced menu .........................................................................

2-19

2.4.1 Jumperfree Conguration .............................................

2-19

2.4.2 USB Conguration ........................................................

2-20

2.4.3 CPU Conguration ........................................................

2-22

2.4.4 Chipset .........................................................................

2-23

2.4.5 Onboard Devices Conguration ....................................

2-25

2.4.6 PCI PnP ........................................................................

2-26

v

Contents

2.5 Power menu ................................................................................ 2-27

2.5.1 Suspend Mode ..............................................................

2-27

2.5.2 Repost Video on S3 Resume ........................................

2-27

2.5.3 ACPI 2.0 Support ..........................................................

2-27

2.5.4 ACPI APIC Support .......................................................

2-27

2.5.5 APM Conguration .......................................................

2-28

2.5.6 Hardware Monitor .........................................................

2-29

2.6 Boot menu ..................................................................................

2-30

2.6.1 Boot Device Priority ......................................................

2-30

2.6.2 Boot Settings Conguration ..........................................

2-31

2.6.3 Security .........................................................................

2-32

2.7 Tools menu .................................................................................

2-34

ASUS EZ Flash 2 ..........................................................

2-34

2.8 Exit menu ....................................................................................

2-35

Chapter 3: Software support

3.1 Installing an operating system ................................................... 3-2

3.2 Support CD information ..............................................................

3-2

3.2.1 Running the support CD .................................................

3-2

3.2.2 Drivers menu ...................................................................

3-3

3.2.3 Utilities menu ..................................................................

3-4

3.2.4 ASUS Contact information ..............................................

3-5

Appendix: CPU features

A.1 Intel® EM64T ..................................................................................A-2

A.2 Enhanced Intel SpeedStep

®

Technology (EIST) ........................A-2

A.2.1 System requirements ......................................................

A-2

A.2.2 Using the EIST ................................................................

A-3

A.3 Intel

®

Hyper-Threading Technology ...........................................A-4

Using the Hyper-Threading Technology ........................................A-4

vi

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.

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.

The use of shielded cables for connection of the monitor to the graphics card is

required to assure compliance with FCC regulations. Changes or modications

to this unit not expressly approved by the party responsible for compliance
could void the user’s authority to operate this equipment.

vii

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 x it by yourself. Contact a
qualied 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 qualied

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.

viii

About this guide

This user guide contains the information you need when installing and conguring

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 CD that comes with the
motherboard package.

• Appendix: CPU features

This Appendix describes the CPU features that the motherboard supports.

Where to nd 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

yers, that may have been added by your dealer. These documents are not

part of the standard package.

ix

Conventions used in this guide

To make sure that you perform certain tasks properly, take note of the following
symbols used throughout this manual.

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[lename]

afudos /iP5KPL.ROM

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.

NOTE: Tips and additional information to help you complete a

task.

IMPORTANT: Instructions that you MUST follow to complete a

task.

x

P5KPL specications summary

(continued on the next page)

CPU LGA775 socket for Intel® Core™2 Quad / Core™2

Extreme / Core™2 Duo / Pentium® Extreme / Pentium®
D / Pentium® 4 / Celeron® D Processors
Intel® Hyper-Threading Technology ready
Supports next generation 45nm multi-core CPU
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 1333 (overclocking) / 1066 / 800 MHz

Memory Dual channel memory architecture

4 x 240-pin DIMM sockets supports unbuffered non-ECC

4GB 800/667 MHz DDR2 memory modules

Expansion Slots 1 x PCI Express x16 slot

1 x PCI Express x1 slot
3 x PCI slots

Storage Southbridge Intel® ICH7 supports:

- 1 x UltraDMA 100/66 hard disk drive

- 4 x SATA 150 / 300 ports

LAN PCIe Gigabit LAN controller

Audio Realtek® ALC 662 6-channel High Denition Audio

CODEC
Supports Jack-detect, S/PDIF out interface, Anti Pop
Funtion
Compatible with Vista Premium OS

ASUS Overclocking

Features

SFS (Stepless Frequency Selection):

- FSB tuning from 133 MHz up to 500 MHz at 1MHz
increment

Overclocking Protection:

- ASUS C.P.R. (CPU Parameter Recall)

ASUS Special Features ASUS CrashFree BIOS 3

ASUS Q-Fan
ASUS EZ Flash 2
ASUS CPU Lock Free
ASUS CPU Multiplier
ASUS MyLogo 2

Rear panel 1 x PS/2 keyboard port

1 x PS/2 mouse port
1 x Parallel port
1 x S/PDIF out port
1 x COM
1 x LAN (RJ-45) port
4 x USB 2.0 ports
6-channel audio I/O ports

xi

P5KPL specications summary

Internal connectors 2 x USB 2.0 connectors supports additional 4 USB 2.0 ports

1 x Floppy disk drive connector
1 x IDE connector for two devices
4 x Serial ATA connectors
1 x CPU fan connector
1 x Chassis fan connector
1 x Power fan connector
1 x S/PDIF Out connector
1 x Chassis intrusion connector
1 x Front panel audio connector
1 x CD audio in connector
1 x 24-pin EPS 12 V power connector
1 x 4-pin ATX 12 V power connector
System panel connector

USB Max. 8 x USB2.0 ports (4 ports at mid-board, 4 ports at

back panel

BIOS features 8 Mb Flash ROM, AMI BIOS, Special H / W write

production, PnP, DMI v2.0, WfM2.0, SM BIOS v2.5,
ACPI

Manageability WOL by PXE, WOR by PXE, WOR by Ring

Supported OS Windows Vista / XP / 2000

Support CD contents Drivers

ASUS PC Probe II
ASUS LiveUpdate utility

Accessories 2 x Serial ATA cables

2 x Serial ATA power cables
1 x UltraDMA 100/66 cable
1 x Floppy disk drive cable
1 x I/O shield
1 x USB Cable
User manual

Form factor ATX form factor: 12 in x 7.6 in (30.5 cm x 19.3 cm)

*Specications are subject to change without notice.

xii

1

Product

introduction

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

1-2 Chapter 1: Product introduction

1.1 Welcome!

T han k y o u f o r b u y in g a n A SU S® P 5 K P L m o t h e r b oa rd !

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.

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

1.2 Package contents

Check your motherboard package for the following items.

Motherboard ASUS P5KPL
Cables 1 x Ultra DMA 100/66 cable
2 x SATA cables
2 x SATA power cables
1 x Floppy disk drive cable
1 x USB cable
Accessories I/O shield
Application CD ASUS motherboard support CD
Documentation User guide

1.3 Special features

1.3.1 Product 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 the ASUS 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 efcient 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 1333 (overclocking) / 1066 / 800 of front side bus (FSB), this

motherboard guarantees enhanced user experience in the digital home and ofce.

ASUS P5KPL 1-3

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 1333

(overclocking) / 1066 / 800 MHz FSB, Intel® Core™2 processor is designed to
provide powerful and energy efcient performance.

DDR2 memory support

The motherboard supports DDR2 memory that features data transfer rates of

667/800 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. 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) 3 Gb/s storage specication, 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.

S/PDIF digital sound ready

The motherboard supports the S/PDIF-out (SONY-PHILIPS Digtal Interface)
function through the S/PDIF interface at mid-board. It allows to transfer digital
audio without converting to analog format and keeps the best signal quality. See
page 1-29 for details.

High Denition Audio

Enjoy high-end sound quality on your PC! The onboard 6-channel HD audio (High

Definition Audio, previously codenamed Azalia) CODEC enables high-quality
192KHz/24-bit audio output, jack-detect feature.

1-4 Chapter 1: Product introduction

1.3.2 ASUS 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 efcient operation. See page 2-29 for

details.

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. See page 2-31 for details.

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 ash

utility. See page 2-4 for details.

ASUS CrashFree BIOS 3

The ASUS CrashFree BIOS 3 allows users to restore corrupted BIOS data from a
USB ash disk containing the BIOS le. See page 2-7 for details.

1.3.3 ASUS Overclocking 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.

ASUS P5KPL 1-5

1.4 Before 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.

P5KPL

P5KPL Onboard LED

SB_PWR

ON

Standby

Power

OFF

Powered

Off

1-6 Chapter 1: Product introduction

P5KPL

1.5 Motherboard overview

Before you install the motherboard, study the conguration of your chassis to
ensure that the motherboard ts into it.

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

1.5.1 Placement 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.

1.5.2 Screw holes

Place six (6) screws into the holes indicated by circles to secure the motherboard
to the chassis.

Place this side towards
the rear of the chassis

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.

ASUS P5KPL 1-7

1.5.3 Motherboard layout

30.5cm (12in)

P5KPL

AUDIO

LAN1_USB12

USB34

PS/2KBMS
T:Mouse
B:Keyboard

SPDIF_O

PARALLE PORT

COM1

LGA775

DDR2 DIMMB1 (64 bit,240-pin module)

DDR2 DIMMB2 (64 bit,240-pin module)

DDR2 DIMMA1 (64 bit,240-pin module)

DDR2 DIMMA2 (64 bit,240-pin module)

CD

19.3cm (7.6in)

CPU_FAN

SATA4SATA2

SATA3SATA1

Intel
G31

Intel

ICH7(A1)

PRI_IDE

CHASSIS

CLRTC

FLOPPY

USB56 USB78

PCIEX16

PCI1

PCI2

PCI3

PCIEX1

CR2032 3V
Lithium Cell

CMOS Power

8Mb
BIOS

USBPW5-8

Super I/O

SPDIF_OUT

AAFP

ALC662

USBPW1-4

ATX12V

KBPWR

EATXPWR

Attansic

L1

PANEL

SB_PWR

ICS

9LPRS552AGLF

CHA_FANPWR_FAN

Refe r to s ectio n 1.10 Conn ector s for mor e inform ation about rear panel
connectors and internal connectors.

1-8 Chapter 1: Product introduction

1.5.4 Layout contents

Slots Page

1. DDR2 DIMM slots 1-16

2. PCI slots 1-24

3. PCI Express x1 slot 1-24

4. PCI Express x16 slot 1-24

Jumpers Page

1. Clear RTC RAM (3-pin CLRTC) 1-25

2.

USB device wake-up (3-pin USBPW1-4, USBPW5-8)

1-26

3. Keyboard power (3-pin KBPWR)

1-26

Rear panel connectors Page

1. PS/2 mouse port (green) 1-27

2

. Parallel port

1-27

3

.

LAN (RJ-45) port

1-27

4. Line In port (light blue)

1-27

5.

Line Out port (lime)

1-27

6. Microphone port (pink)

1-27

7.

USB 2.0 ports 1 and 2

1-28

8.

USB 2.0 ports 3 and 4

1-28

9. Coaxial S//PDIF Out port

1-28

10. Serial port 1-28

11. PS/2 keyboard port (purple)

1-28

Internal connectors Pag

e

1. Floppy disk drive connector (34-1 pin FLOPPY) 1-29

2. Digital Audio connector (4-1 pin SPDIF_OUT) 1-29

3. IDE connector (40-1 pin PRI_IDE) 1-30

4. ICH7 Serial ATA connectors (7-pin SATA1, SATA2, SATA3, SATA4) 1-31

5. USB connectors (10-1 pin USB56, USB78) 1-32

6. Optical drive audio connector (4-pin CD) 1-32

7. CPU, chassis and power fan connectors (4-pin CPU_FAN, 1-33
3-pin CHA_FAN, 3-pin PWR_FAN)

8. Chassis intrusion connector (4-1 pin CHASSIS) 1-34

9. Front panel audio connector (10-1 pin AAFP) 1-34

10. ATX power connectors (24-pin EATXPWR, 4-pin ATX 12V) 1-35

11. System panel connector (20-8 pin PANEL) 1-36

ASUS P5KPL 1-9

1.6 Central Processing Unit (CPU)

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

•

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.

•

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.

1-10 Chapter 1: Product introduction

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

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

Load lever

This side of the socket box

should face you.

PnP cap

A

B

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

1.6.1 Installing the CPU

To install a CPU:

1. Locate the CPU socket on the motherboard.

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

P5KPL

P5KPL

CPU Socket 775

ASUS P5KPL 1-11

5. Position the CPU over the
socket, making sure that
the gold triangle is on the
bottom-left corner of the

socket then t the socket

alignment key into the
CPU notch.

Alignment key

Gold triangle mark

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

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

A

B

The CPU ts 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!

The motherboard supports Intel® LGA775 processors with Hyper-Threading
Technology. Refer to the Appendix for more information on these CPU features.

4. Lift the load plate with your thumb

and forenger to a 100º angle (A),

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

Load plate

A

B

CPU notch

1-12 Chapter 1: Product introduction

Fastener

Motherboard hole

1.6.2 Installing the CPU heatsink and fan

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

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.

•

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®-certied 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.

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

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

Narrow end of the groove

ASUS P5KPL 1-13

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

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

B

A

A

A

B

B

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

A

B

P5KPL

P5KPL

CPU Fan Connector

GND

CPU FAN PWR

CPU FAN IN

CPU FAN PWM

CPU_FAN

1-14 Chapter 1: Product introduction

1.6.3 Uninstalling the CPU heatsink and fan

To uninstall the CPU heatsink and fan:

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

2. Rotate each fastener
counterclockwise.

3. Pull up two fasteners at a time in
a diagonal sequence to disengage
the heatsink and fan assembly
from the motherboard.

B

B

A

A

A

A

B

B

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

ASUS P5KPL 1-15

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

Narrow end of the groove

Refer to the documentation in the boxed or stand-alone CPU fan package for
detailed information on CPU fan installation.

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

1-16 Chapter 1: Product introduction

1.7 System memory

1.7.1 Overview

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 gure illustrates the location of the DDR2 DIMM sockets:

Channel Sockets

Channel A DIMM_A1 and DIMM_A2

Channel B DIMM_B1 and DIMM_B2

P5KPL

P5KPL

240-pin DDR2 DIMM Sockets

128 Pins

112 Pins

DIMM_A2

DIMM_B1

DIMM_B2

DIMM_A1

ASUS P5KPL 1-17

1.7.2 Memory congurations

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

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 conguration.

• 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.

32-bit 64-bit

Windows

®

XP Windows® XP x64 Edition
Windows® 2003 Server Windows® 2003 Server x64 Edition
Windows® 2002/2002 Server Windows

®

Vista x64 Edition

Windows

®

Vista

• You may install varying memory sizes in Channel A and Channel B. The
system maps the total size of the lower-sized channel for the dual-channel
conguration. Any excess memory from the higher-sized channel is then

mapped for single-channel operation.

•

For single-channel conguration, install either two single-sided memory

modules or one double-sided memory module.

•

When installing four DDR2 DIMM modules, install the single-sided memory
modules.

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

• If you install two 2GB memory modules, the system may only recognize less

than 4GB because the address space is reserved for other critical functions.
This limitation appears on Windows® XP 32-bit operation system which does
not support Physical Address Extension (PAE).

• If you install Windows

®

XP 32-bit operation system, a total memory of less

than 4GB is recommended.

1-18 Chapter 1: Product introduction

Qualied Vendors Lists (QVL)

Siz e Vendor Mod el CL B ra nd Si de (s) Co mpo ne nt A B C

DDR2 667

DIM M sup po rt

256MB Kingston KVR667D2N5/256 N/A Kingston SS D3216TLSAKL3U • • •

256MB Kingston KVR667D2N5/256 N/A Inneon SS HYB18T256800AF3SW65 33154 • • •

512MB Kingston KVR667D2N5/512 N/A Kingston SS D6408TE8WL-27 • • •

513MB Kingston KVR667D2N5/512 N/A Elpida SS E5108AGBG-6E-E • • •

1G Kingston KVR667D2N5/1G N/A Kingston DS D6408TEBGGL3U • •

1G Kingston KVR667D2N5/1G N/A Elpida DS E5108AGBG-6E-E • •

512MB Samsung KR M378T6553CZ0-CE6 N/A Samsung SS K4T51083QC • • •

512MB Samsung KR M378T6453FZ0-CE6 N/A Samsung DS K4T56083QF-ZCE6 • •

512MB Samsung M378T6553CZ3-CE6 N/A Samsung SS K4T51083QC-ZCE6 • • •

1G Samsung M378T2953CZ3-CE6 N/A Samsung DS K4T51083QC-ZCE6 • •

1G Samsung KR M378T2953CZ0-CE6 N/A Samsung DS K4T51083QC-ZCE6 • •

256MB Qimonda HYS64T32000HU-3S-A N/A Qimonda SS HYB18T512160AF-3SSSS17310 • • •

512MB Qimonda HYS64T32000HU-3S-A N/A Qimonda SS HYB18T5128000AF-3SSSS27416 • • •

512MB Qimonda HYS64T64000HU-3S-A N/A Qimonda SS HYB18T512800AF3SFSS05346 • • •

1G Qimonda HYS64T128020HU-3S-A N/A Qimonda DS HYB18T512800AF3SSSS28104 • •

512MB Corsair VS512MB667D2 N/A Corsair SS 64M8CFEGPS0900647 • • •

1G Corsair VS1GB667D2 N/A Corsair DS MID095D62864M8CEC • •

1G Corsair XMS2-5400 4 Corsair DS Heat-Sink Package • •

256MB HY HYMP532U64CP6-Y5 AB 5 Hynix SS HY5PS121621CFP-Y5 • • •

512MB HY HYMP564U64AP8-Y4 AA N/A Hynix SS HY5PS12821AFP-Y4 • • •

512MB HY HYMP564U64AP8-Y5 AA N/A Hynix SS HY5PS12821AFP-Y5 • • •

1G HY HYMP512U64AP8-Y5 AB N/A Hynix DS HY5PS12821AFP-Y5 • •

1G HY HYMP512U64CP8-Y5 AB 5 Hynix DS HY5PS12521CFP-Y5 • •

512MB Kingmax KLCC28F-A8KB5 N/A Kingmax SS KKEA88B4LAUG-29DX • • •

1G Kingmax KLCD48F-A8KB5 N/A Kingmax DS KKEA88B4LAUG-29DX • •

512MB Apacer AU512E667C5KBGC 5 Apacer SS AM4B5708MIJS7E0627B • • •

512MB Apacer AU512E667C5KBGC 5 Apacer SS AM4B5708GQJS7E06332F • • •

1G Apacer AU01GE667C5KBGC N/A Apacer DS AM4B5708GQJS7E0636B • •

1G Apacer 78.01092.420 5 Elpida DS E5108AE-6E-E • •

1G Apacer AU01GE667C5KBGC 5 Apacer DS AM4B5708MIJS7E0627B • •

512MB ADATA M20EL5G3H3160B1C0Z N/A Elpida SS E5108AE-6E-E • • •

512MB ADATA M20AD5G3H3166I1C52 N/A ADATA SS AD29608A8A-3EG20648 • • •

512MB ADATA M20AD5G3H3166I1C52 N/A ADATA SS AD29608A8A-3EG20718 • • •

1G ADATA M2OAD5G3I4176I1C52 N/A ADATA DS AD29608A8A-3EG20645 • •

512MB VDATA M2GVD5G3H31A4I1C52 N/A VDATA SS VD29608A8A-3EC20615 • • •

512MB VDATA M2GVD5G3H166I1C52 N/A VDATA SS VD29608A8A-3EG20637 • • •

1G VDATA M2GVD5G3I41P6I1C52 N/A VDATA DS VD29608A8A-3EG20627 • •

1G VDATA M2GVD5G3I41C4I1C52 N/A VDATA DS VD29608A8A-3EC20620 • •

1G VDATA M2GVD5G3I4176I1C52 N/A VDATA DS VD29608A8A-3EG20641 • •

512MB PSC AL6E8E63B-6E1K 5 PSC SS A3R12E3GEF637BLC5N • • •

512MB PSC AL6E8E63J-6E1 5 PSC SS A3R12E3JFF717B9A00 • • •

1G PSC AL7E8E63B-6E1K 5 PSC DS A3R12E3GEF637BLC5N • •

1G PSC AL7E8E63J-6E1 5 PSC DS A3R12E3JFF717B9A01 • •

256MB Nanya NT256T64UH4A1FY-3C N/A Nanya SS NT5TU32M16AG-3C • • •

512MB Nanya NT512T64U88A1BY-3C N/A Nanya SS NT5TU64M8AE-3C • • •

ASUS P5KPL 1-19

DIMM support

DDR2 800

Siz e Vendor Mode l C L Bra nd Side (s ) C om po nen t A B C

DIM M sup po rt

512MB Kingston KVR800D2N5/512 N/A Samsung SS K4T51083QC-ZCE7 • • •

512MB Kingston KVR800D2N5/512 N/A Promos SS V59C1512804QBF25S0054707PEBPA • • •

1G Kingston KVR800D2N5/1G N/A Samsung DS K4T51083QC-ZCE7 • •

1G Kingston KVR800D2N5/1G N/A Nanya DS NT5TU64M8BE-25C62321800CP • •

1G Kingston KHX6400D2K2/2G N/A Kingston DS Heat-Sink Package • •

512MB Samsung KR M378T6553CZ3-CE7 N/A Samsung SS K4T51083QC-ZCE7 • • •

1G Samsung KR M378T2953CZ3-CE7 N/A Samsung DS K4T51083QC-ZCE7 • •

256MB Qimonda HYS64T32001HU-2.5-A N/A Qimonda SS HYB18T256800AF25SSS49313 • • •

512MB Qimonda HYS64T64020HU-2.5-A N/A Qimonda DS HYB18T256800AF25SSS25063 • •

1G Corsair CM2X1024-6400 5 Corsair DS Heat-Sink Package • •

1G Corsair XMS2-6400 4 Corsair DS Heat-Sink Package • •

1G Corsair XMS2-6400 5 Corsair DS Heat-Sink Package • •

512MB HY HYMP564U64AP8-S6 AA N/A Hynix SS HY5PS12821AFP-S6 • • •

512MB HY HYMP564U64BP8-S5 AB N/A Hynix SS HY5PS12821BFP-S5 • • •

512MB HY HYMP564U64CP8-S5 AB 5 Hynix SS HY5PS12821CFP-S5 • • •

1G HY HYMP512U64AP8-S6 AA N/A Hynix DS HY5PS12821AFP-S6 • •

1G HY HYMP512U64BP8-S5 AB 5 Hynix DS HY5PS12821BFP-S5 • •

1G HY HYMP512U64CP8-S5 AB 5 Hynix DS HY5PS12821CFPS5 • •

512MB ADATA M20AD6G3H3160I1E58 N/A ADATA SS AD29608A8A-25EG80720 • • •

512MB MDT MDT 512MB 4 MDT SS 18D51280D-30648 • •

1G MDT MDT 1024MB 4 MDT DS 18D51280D-30646E • •

512MB Twinmos 8D-A3JK5MPETP 5 PSC SS A3R12E3GEF633ACAOY • • •

1G Twinmos 8D-B3KK5MPFTP 5 PSC DS A3R12E3GEF633ACAOY • •

512MB AENEON AET660UD00-30DA98Z N/A AENEON SS AET93F30DA 0552 • • •

512MB AENEON AET660UD00-30DB97X 5 AENEON SS AET93R300B 0634 • • •

1G AENEON AET760UD00-30DA98Z N/A AENEON DS AET93F30DA8EE47414G 0540 • •

512MB AENEON AET660UD00-30DA98Z N/A AENEON SS AET93F300A 0606 • • •

1G AENEON AET760UD00-30DA98Z N/A AENEON DS AET93F30DA 0604 • •

1G AENEON AET760UD00-30DB97X 5 AENEON DS AET93R300B 0639 • •

512MB TAKEMS TMS51B264C081-665QI 5 takeMS SS MS18T51280-3 • • •

512MB TAKEMS TMS51B264C081-665AP 5 takeMS SS MS18T51280-3S0627D • • •

1G TAKEMS TMS1GB264C081-665QI 5 takeMS DS MS18T51280-3 • •

1G TAKEMS TMS1GB264C081-665AE 5 takeMS DS MS18T51280-3SEA07100 • •

1G TAKEMS TMS1GB264C081-665AP 5 takeMS DS MS18T51280-3SP0717A • •

512MB VERITECH GTP512HLTM45EG N/A VERITECH SS VTD264M8PC6G01A164129621 • • •

1G VERITECH GTP01GHLTM55EG N/A VERITECH DS VTD264M8PC6G01A164129621 • •

512MB Century CENTURY 512MB N/A Nanya SS NT5TU64M8AE-3C • • •

512MB Century CENTURY 512MB N/A Hynix SS HY5PS12821AFP-Y5 • • •

1G Century CENTURY 1G N/A Hynix DS HY5PS12821AFP-Y5 • •

1G Century CENTURY 1G N/A Nanya DS NT5TU64M8AE-3C • •

512MB KINGBOX 512MB 667MHz N/A KINGBOX SS EPD264082200-4 • • •

1G KINGBOX DDRII 1G 667MHz N/A KINGBOX DS EPD264082200-4 • •

Siz e Vendor Mod el CL B ra nd Si de (s) Co mpo ne nt A B C

DDR2 667

DIM M sup po rt

1-20 Chapter 1: Product introduction

Side(s): SS - Single-sided DS - Double-sided

DIMM support:

A - Supports one module inserted into any slot as Single-channel memory conguration.
B - Supports one pair of modules inserted into either the yellow slots or the black slots

as one pair of Dual-channel memory conguration.

C - Supports four modules inserted into both the yellow slots and the black slots as two

pair of Dual-channel memory conguration.

Visit the ASUS website (www.asus.com) for the latest QVL.

DDR2 800

Siz e Vend or Model CL Bra nd Side (s ) Co mpone nt A B C

DIM M sup po rt

1G VDATA M2GVD6G3I4170I1E53 N/A VDATA DS VD29608A8A-25EG30647 • •

512MB PSC AL6E8E63B-8E1K 5 PSC SS A3R12E3HEF641B9A05 • • •

1G PSC AL7E8E63B-8E1K 5 PSC DS A3R12E3HEF641B9A05 • •

512MB AENEON AET660UD00-25DB98X N/A AENEON SS AET93F25DB 0621 • • •

1G AENEON AET760UD00-25DB97X 5 AENEON DS AET93R25DB 0640 • •

512MB SIS SLY264M8-JGE-3 N/A SIS SS DDRII6408-8E 7212 • • •

1G SIS SLY264M8-JGE-3 N/A SIS DS DDRII6408-8E 7301 • •

512MB TAKEMS TMS51B264C081-805EP 5 takeMS SS MS18T51280-2.5P0710 • • •

1G TAKEMS TMS1GB264C081-805EP 5 takeMS DS MS18T51280-2.5P0716 • •

512MB VERITECH GTU512HLTXX4EG N/A Veritech SS VTD264M8PC4G03A169045648 • • •

1G VERITECH GTU01GHLTXX4EG N/A Veritech DS VTD264M8PC4G03A169045648 • •

ASUS P5KPL 1-21

1.7.3 Installing a DIMM

To install a DIMM:

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

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

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

1.7.4 Removing a DIMM

To remove a DIMM:

1. Simultaneously press the retaining
clips outward to unlock the DIMM.

2. Remove the DIMM from the socket

.

• A DDR2 DIMM is keyed with a notch so that it ts in only one direction. Do

not force a DIMM into a socket to avoid damaging the DIMM.

• The DDR2 DIMM sockets do not support DDR DIMMs. Do not install DDR
DIMMs to the DDR2 DIMM sockets.

Unlocked retaining clip

DDR2 DIMM notch

Unplug the power supply before adding or removing DIMMs or other
system components. Failure to do so can cause severe damage to both the
motherboard and the components.

Support the DIMM lightly with

your ngers when pressing the

retaining clips. The DIMM might

get damaged when it ips out with

extra force.

DDR2 DIMM notch

1

2

3

1

2

1

1

1-22 Chapter 1: Product introduction

1.8 Expansion slots

In the future, you may need to install expansion cards. The following sub-sections
describe the slots and the expansion cards that they support.

1.8.1 Installing an expansion card

To install an expansion card:

1. Before installing the expansion card, read the documentation that came with
it and make the necessary hardware settings for the card.

2. Remove the system unit cover (if your motherboard is already installed in a
chassis).

3. Remove the bracket opposite the slot that you intend to use. Keep the screw
for later use.

4. Align the card connector with the slot and press rmly until the card is

completely seated on the slot.

5. Secure the card to the chassis with the screw you removed earlier.

6. Replace the system cover.

1.8.2 Conguring an expansion card

After installing the expansion card, congure it by adjusting the software settings.

1. Turn on the system and change the necessary BIOS settings, if any. See
Chapter 2 for information on BIOS setup.

2. Assign an IRQ to the card. Refer to the tables on the next page.

3. Install the software drivers for the expansion card.

Make sure to unplug the power cord before adding or removing expansion
cards. Failure to do so may cause you physical injury and damage motherboard
components.

When using PCI cards on shared slots, ensure that the drivers support “Share

IRQ” or that the cards do not need IRQ assignments. Otherwise, conicts will

arise between the two PCI groups, making the system unstable and the card
inoperable. Refer to the table on the next page for details.

ASUS P5KPL 1-23

1.8.3 Interrupt assignments

Standard interrupt assignments

IRQ Priority Standard Function

0 1 System Timer
1 2 Keyboard Controller
2 — —
3 11 IRQ holder for PCI steering*
4 12 Communications Port (COM1)
5 13 Standard IRQ holder for PCI steering
6 14 Floppy Disk Controller
7 15 Printer Port (LPT1)
8 3 System CMOS/Real Time Clock
9 4 Microsoft ACPI-Compliant Sytem
10 5 IRQ holder for PCI steering*
11 6 IRQ holder for PCI steering*
12 7 PS/2 Compatible Mouse Port
13 8 Numeric Data Processor
14 9 Primary IDE Channel

* These IRQs are usually available for PCI devices.

IRQ assignments for this motherboard

A B C D E F G H

PCI1 — — — — shared — — —
PCI2 — — — — — shared — —
PCI3 — — — — — — shared —
PCIEX16_1 shared — — — — — — —
PCIEX1_1 shared — — — — — — —
Onboard USB controller 1 — — — — — — — shared
Onboard USB controller 2 — — — shared — — — —
Onboard USB controller 3 — — shared — — — — —
Onboard USB controller 4 shared — — — — — — —
Onboard USB 2.0 controller — — — — — — — shared
Onboard HD audio shared — — — — — — —
Onboard LAN — Used — — — — — —

1-24 Chapter 1: Product introduction

1.8.4 PCI slots

The PCI slots support cards such as
a LAN card, SCSI card, USB card,
and other cards that comply with PCI

specications. The gure shows a LAN

card installed on a PCI slot.

1.8.5 PCI Express x1 slot

This motherboard supports PCI Express
x1 network cards, SCSI cards and other
cards that comply with the PCI Express

specications. The following gure

shows a network card installed on the
PCI Express x1 slot.

1.8.6 PCI Express x16 slot

This motherboard supports PCI Express
x16 graphic cards that comply with the

PCI Express specications. The gure

shows a graphics card installed on the
PCI Express x16 slot.

ASUS P5KPL 1-25

1.9 Jumpers

1. Clear RTC RAM (CLRTC)

This jumper allows you to clear the Real Time Clock (RTC) RAM in
CMOS. You can clear the CMOS memory of date, time, and system setup
parameters by erasing the CMOS RTC RAM data. The onboard button
cell battery powers the RAM data in CMOS, which include system setup
information such as system •words.

To erase the RTC RAM:

1. Turn OFF the computer and unplug the power cord.

2. Remove the onboard battery.

3. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on
pins 2-3 for about 5~10 seconds, then move the cap back to pins 1-2.

4. Reinstall the battery.

5. Plug the power cord and turn ON the computer.

6. Hold down the <Del> key during the boot process and enter BIOS setup
to re-enter data.

• You do not need to clear the RTC when the system hangs due to
overclocking. For system failure due to overclocking, use the C.P.R. (CPU
Parameter Recall) feature. Shut down and reboot the system so the BIOS
can automatically reset parameter settings to default values.

• Due to the chipset limitation, AC power off is required prior using C.P.R.
function. You must turn off and on the power supply or unplug and plug the
power cord before reboot the system.

Except when clearing the RTC RAM, never remove the cap on CLRTC jumper
default position. Removing the cap will cause system boot failure!

P5KPL

P5KPL

Clear RTC RAM

CLRTC

Normal

Clear RTC

(Default)

1 2 2 3

1-26 Chapter 1: Product introduction

2. USB device wake-up (3-pin USBPW1-4, USBPW5-8)

This jumper allows you to enable or disable the keyboard wake-up feature.
Set this jumper to pins 2-3 (+5VSB) to wake up the computer when you press
a key on the keyboard (the default is the Space Bar). This feature requires an
ATX power supply that can supply at least 500 mA on the +5VSB lead, and a
corresponding setting in the BIOS.

• The USB device wake-up feature requires a power supply that can
provide 500mA on the +5VSB lead for each USB port; otherwise,
the system would not power up.

• The total current consumed must NOT exceed the power supply
capability (+5VSB) whether under normal condition or in sleep mode.

P5KPL

P5KPL

USB Device Wake Up

3

2

2

1

USBPW5-8

(Default)

+5V

+5VSB

3

2

2

1

USBPW1-4

(Default)

+5V

+5VSB

3. Keyboard power (3-pin KBPWR)

This jumper allows you to enable or disable the keyboard wake-up feature.
Set this jumper to pins 2-3 (+5VSB) to wake up the computer when you press
a key on the keyboard (the default is the Space Bar). This feature requires
an ATX power supply that can supply at least 1A on the +5VSB lead, and a
corresponding setting in the BIOS.

P5KPL

P5KPL Keyboard Power Setting

2 3

1 2

(Default)

+5V

+5VSB

KBPWR

ASUS P5KPL 1-27

1.10 Connectors

1.10.1 Rear panel connectors

1. PS/2 mouse port (green). This port is for a PS/2 mouse.

2.

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

devices.

3. LAN (RJ-45) port.

Supported by L1 PCIE Gigabit LAN controller, this port
allows Gigabit connection to a Local Area Network (LAN) through a network
hub. Refer to the table below for the LAN port LED indications.

Activity/Link Speed LED

Status Description Status Description

OFF No link OFF 10 Mbps connection

YELLOW Linked ORANGE 100 Mbps connection

BLINKING Data activity GREEN 1 Gbps connection

LAN port LED indications

SPEED

LED

ACT/LINK

LED

LAN port

4. Line In port (light blue).

This port connects the tape, CD, DVD player, or

other audio sources.

5. Line Out port (lime).

This port connects a headphone or a speaker. In

4-channel and 6-channel conguration, the function of this port becomes

Front Speaker Out.

6. Microphone port (pink).

This port connects a microphone.

1

11

4

5

6

7

2 3

10 89

1-28 Chapter 1: Product introduction

7. USB 2.0 ports 1 and 2.

These two 4-pin Universal Serial Bus (USB) ports

are available for connecting USB 2.0 devices.

8. USB 2.0 ports 3 and 4.

These two 4-pin Universal Serial Bus (USB) ports

are available for connecting USB 2.0 devices.

9. Coaxial S/PDIF Out port.

This port connects an external audio output device

via an optical S/PDIF cable.

10. Serial port.

This 9-pin COM1 port is for pointing devices or other serial

devices.

11. PS/2 keyboard port (purple).

This port is for a PS/2 keyboard.

Audio 2, 4, or 6-channel conguration

Light Blue Line In Surround Out Surround Out

Lime green Line Out Front Speaker Out Front Speaker Out

Pink Mic In Mic Center/Bass

Port Headset 4-speaker 6-speaker
2-speaker

Refer to the audio conguration table below for the function of the audio ports in
2, 4, or 6-channel conguration.

ASUS P5KPL 1-29

1.10.2 Internal connectors

1. Floppy disk drive connector (34-1 pin FLOPPY)

This connector is for the provided oppy disk drive (FDD) signal cable. Insert

one end of the cable to this connector, then connect the other end to the

signal connector at the back of the oppy disk drive.

Pin 5 on the connector is removed to prevent incorrect cable connection when
using a FDD cable with a covered Pin 5.

P5KPL

P5KPL

Floppy Disk Drive Connector

PIN

1

NOTE:

Orient the red markings on

the floppy ribbon cable to PIN 1.

FLOPPY

2. Digital Audio connector (4-1 pin SPDIF_OUT)

This connector is for the S/PDIF audio module to allow digital sound output.
Connect one end of the S/PDIF audio cable to this connector and the other
end to the S/PDIF module.

The S/PDIF out module is purchased separately.

P5KPL

P5KPL

Digital Audio Connector

+5V

SPDIFOUT

GND

SPDIF_OUT

1-30 Chapter 1: Product introduction

3. IDE connector (40-1 pin PRI_IDE)

The onboard IDE connector is for the Ultra DMA 100/66/33 signal cable.
There are three connectors on each Ultra DMA 100/66/33 signal cable:
blue, black, and gray. Connect the blue connector to the motherboard’s IDE

connector, then select one of the following modes to congure your device.

• Pin 20 on the IDE connector is removed to match the covered hole on the
Ultra DMA cable connector. This prevents incorrect insertion when you
connect the IDE cable.

• Use the 80-conductor IDE cable for Ultra DMA 100/66/33 IDE devices.

If any device jumper is set as “Cable-Select,” make sure all other device
jumpers have the same setting.

Drive jumper setting Mode of

device(s)

Cable connector

Single device Cable-Select or Master - Black

Two devices Cable-Select Master

Black

Slave Gray

Master Master Black or gray

Slave Slave

P5KPL

P5KPL IDE Connector

NOTE: Orient the red markings

(usually zigzag) on the ID

ribbon cable to PIN 1.

PRI_IDE

PIN1

ASUS P5KPL 1-31

4. ICH7 Serial ATA connectors (7-pin SATA1, SATA2, SATA3, SATA4)

These connectors are for the Serial ATA signal cables for Serial ATA hard disk
drives.

P5KPL

P5KPL

SATA Connectors

GND
RSATA_TXP2
RSATA_TXN2

GND
RSATA_RXN2
RSATA_RXP2

GND

SATA2

GND
RSATA_TXP4
RSATA_TXN4

GND
RSATA_RXN4
RSATA_RXP4

GND

SATA4

GND
RSATA_TXP1
RSATA_TXN1

GND
RSATA_RXN1
RSATA_RXP1

GND

SATA1

GND
RSATA_TXP3
RSATA_TXN3

GND
RSATA_RXN3
RSATA_RXP3

GND

SATA3

Connect th e ri g h t - a n g l e s i d e
of S ATA s ignal c able t o SATA
device. Or you may connect the
right-angle side of SATA cable to
the onboard SATA port to avoid
me c han i cal c onf l ict w ith hug e
graphics cards.

right angle side

1-32 Chapter 1: Product introduction

6. Optical drive audio connector (4-pin CD)

These connectors allow you to receive stereo audio input from sound sources
such as a CD-ROM, TV tuner, or MPEG card.

P5KPL

P5KPL Internal Audio Connector

CD

(black)

Right A

udio Channel

Left

A

udio Channel

Ground
Ground

5. USB connectors (10-1 pin USB56, USB78)

These connectors are for USB 2.0 ports. Connect the USB module cable
to any of these connectors, then install the module to a slot opening at the
back of the system chassis. These USB connectors comply with USB 2.0

specication that supports up to 480 Mbps connection speed.

P5KPL

P5KPL

USB 2.0 Connectors

USB78

USB+5V

USB_P8-

USB_P8+

GND

NC

USB+5V

USB_P7-

USB_P7+

GND

1

USB56

USB+5V

USB_P6-

USB_P6+

GND

NC

USB+5V

USB_P5-

USB_P5+

GND

1

Never connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!

The USB module is purchased separately.

ASUS P5KPL 1-33

7. CPU, chassis and power fan connectors
(4-pin CPU_FAN, 3-pin CHA_FAN, 3-pin PWR_FAN)

The fan connectors support cooling fans of 350 mA ~ 2000 mA (24 W max.)
or a total of 1 A ~ 7 A (84 W max.) at +12V. Connect the fan cables to the
fan connectors on the motherboard, making sure that the black wire of each
cable matches the ground pin of the connector.

Do not forget to connect the fan cables to the fan connectors. Insufcient air
ow inside the system may damage the motherboard components. These are

not jumpers! Do not place jumper caps on the fan connectors!

Only the CPU-FAN connector supports the ASUS Advanced Q-Fan feature.

P5KPL

P5KPL

Fan Connectors

GND

CPU FAN PWR

CPU FAN IN

CPU FAN PWM

CPU_FAN

CHA_FAN

GND

Rotation

+12V

PWR_FAN

GND

Rotation

+12V

1-34 Chapter 1: Product introduction

9. Front panel audio connector (10-1 pin AAFP)

This connector is for a chassis-mounted front panel audio I/O module that
supports either HD Audio or legacy AC’97 audio standard.

P5KPL

P5KPL

Front Panel Audio Connector

SENSE2_RETUR

PORT1L

PORT1R

PORT2R

SEBSE_SEND

PORT2L

SENSE1_RETUR

PRESENSE#

GND

AAFP

Legacy AC’97

compliant definition

NC

MIC2

Line out_R

Line out_L

NC

NC

MICPWR

NC

AGND

HD-audio-compliant

pin definition

•

We recommend that you connect a high-denition front panel audio

module to this connector to avail of the motherboard’s high-denition audio

capability.

• By default, this connector is set to HD Audio. If you want to connect a High

Denition front panel audio module to this connector, set the Front Panel

Support Type item in the BIOS to [HD Audio]. See section “2.4.4 Chipset”
for details.

8. Chassis intrusion connector (4-1 pin CHASSIS)

This connector is for a chassis-mounted intrusion detection sensor or switch.
Connect one end of the chassis intrusion sensor or switch cable to this
connector. The chassis intrusion sensor or switch sends a high-level signal to
this connector when a chassis component is removed or replaced. The signal
is then generated as a chassis intrusion event.

By default , the pin labeled “Chassis Signal” and “ Ground” are shorted with
a jumper cap. Remove the jumper caps only when you intend to use the
chassis intrusion detection feature.

P5KPL

P5KPL

Intrusion Connector

CHASSIS

+5VSB_MB

Chassis Signal

GND

(Default

)

ASUS P5KPL 1-35

•

For a fully congured system, we recommend that you use a power supply

unit (PSU) that complies with ATX 12 V Specication 2.0 (or later version)

and provides a minimum power of 400 W.

• Do not forget to connect the 4-pin ATX12V power plug; otherwise, the

system will not boot.

• Use of a PSU with a higher power output is recommended when

conguring a system with more power-consuming devices. The system

may become unstable or may not boot up if the power is inadequate.

• The ATX 12 V Specication 2.0-compliant (400W) PSU has been tested to

support the motherboard power requirements.

10. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)

These connectors are for ATX power supply plugs. The power supply plugs

are designed to t these connectors in only one orientation. Find the proper
orientation and push down rmly until the connectors completely t.

P5KPL

P5KPL ATX Power Connector

EATXPWR

+3 Volts
+3 Volts
Ground
+5 Volts

+5 Volts

Ground

Ground
Power OK
+5V Standb

y

+12 Volts

+3 Volts

-12 Volts
Ground

Ground

Ground

PSON#

Ground

+12 Volts
+3 Volts

-5 Volts

+5 Volts

+5 Volts

+5 Volts

Ground

ATX12V

GND

+12V DC

GND

+12V DC

1-36 Chapter 1: Product introduction

•

System power LED (2-pin PLED)

This 2-pin connector is for the system power LED. Connect the chassis
power LED cable to this connector. The system power LED lights up when
you turn on the system power, and blinks when the system is in sleep mode.

•

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

This 2-pin connector is for the HDD Activity LED. Connect the HDD Activity

LED cable to this connector. The IDE LED lights up or ashes when data is

read from or written to the HDD.

•

System warning speaker (4-pin SPEAKER)

This 4-pin connector is for the chassis-mounted system warning speaker. The
speaker allows you to hear system beeps and warnings.

•

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

This connector is for the system power button. Pressing the power button
turns the system on or puts the system in sleep or soft-off mode depending
on the BIOS settings. Pressing the power switch for more than four seconds
while the system is ON turns the system OFF.

•

Reset button (2-pin RESET)

This 2-pin connector is for the chassis-mounted reset button for system
reboot without turning off the system power.

11. System panel connector (20-8 pin PANEL)

This connector supports several chassis-mounted functions.

P5KPL

P5KPL

System Panel Connector

* Requires an ATX power supply

PLED-

PWR

+5V

Speaker

Ground

RESET

Ground

Reset

Ground

Ground

PWRSW

PLED+

IDE_LED-

IDE_LED+

+IDE_LED

PLED SPEAKER

PANEL

ASUS P5KPL 1-37

1-38 Chapter 1: Product introduction

ASUS P5KPL 2-1

2

BIOS setup

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

2-2 Chapter 2: BIOS setup

2.1 Managing and updating your BIOS

The following utilities allow you to manage and update the motherboard Basic
Input/Output System (BIOS) setup.

1.

ASUS EZ Flash 2(Updates the BIOS in DOS mode using a oppy disk or
USB ash disk.)

2. ASUS AFUDOS (Updates the BIOS in DOS mode using a bootable oppy

disk.)

3.

ASUS CrashFree BIOS 3 (Updates the BIOS using a bootable oppy disk,
USB ash disk or the motherboard support CD when the BIOS le fails or

gets corrupted.)

4.

ASUS Update (Updates the BIOS in Windows® environment.)

Refer to the corresponding sections for details on these utilities.

2.1.1 Creating a bootable oppy disk

1. Do either one of the following to create a bootable oppy disk.

DOS environment

a. Insert a 1.44MB oppy disk into the drive.

b. At the DOS prompt, type

format A:/S then press <Enter>.

Windows® XP environment

a. Insert a 1.44 MB oppy disk to the oppy disk drive.

b. Click

Start from the Windows® desktop, then select My Computer.

c. Select the 3 1/2 Floppy Drive icon.

d. Click

File from the menu, then select Format. A Format 3 1/2 Floppy

Disk window appears.

e. Select

Create an MS-DOS startup disk from the format options eld,

then click Start.

Windows® 2003 environment

To create a set of boot disks for Windows® 2003:

a. Insert a formatted, high density 1.44 MB oppy disk into the drive.

b. Insert the Windows

®

2003 CD to the optical drive.

c. Click

Start, then select Run.

d. From the Open eld, type

Save a copy of the original motherboard BIOS le to a bootable oppy disk or
a USB ash disk in case you need to restore the BIOS in the future. Copy the

original motherboard BIOS using the ASUS Update or AFUDOS utilities.

ASUS P5KPL 2-3

Windows® Vista environment

a. Insert a formatted, high density 1.44 MB oppy disk to the oppy disk

drive.

b. Click

from the Windows® desktop, then select Computer.

c. Right-click

Floppy Disk Drive then click Format to display the

Format 3 1/2 Floppy dialog box.

d. Select the

Create an MS-DOS startup disk check box.

e. Click

Start.

2. Copy the original or the latest motherboard BIOS le to the bootable oppy disk.

Windows® 2000 environment

To create a set of boot disks for Windows® 2000:

a. Insert a formatted, high density 1.44 MB oppy disk into the drive.

b. Insert the Windows

®

2000 CD to the optical drive.

c. Click

Start, then select Run.

d. From the Open eld, type

D:\bootdisk\makeboot a:

assuming that D: is your optical drive.

e. Press <Enter>, then follow screen instructions to continue.

2-4 Chapter 2: BIOS setup

• This function can support devices such as USB ash disk, or oppy disk

with

FAT 32/16

format and single partition only.

• DO NOT shut down or reset the system while updating the BIOS to prevent
system boot failure!

4. When the correct BIOS le is found, EZ Flash 2 performs the BIOS update

process and automatically reboots the system when done.

To update the BIOS using EZ Flash 2:

1. Visit the ASUS website (www.asus.com) to download the latest BIOS le for

the motherboard.

2. Save the BIOS le to a oppy disk or a USB ash disk, then restart the

system.

2.1.2 ASUS EZ Flash 2 utility

The ASUS EZ Flash 2 feature allows you to update the BIOS without having to go

through the long process of booting from a oppy disk and using a DOS-based

utility. The EZ Flash 2 utility is built-in the BIOS chip so it is accessible by pressing
<Alt> + <F2> during the Power-On Self Tests (POST).

3. You can launch the EZ Flash 2 in two ways.

(1)

Insert the oppy disk / USB ash disk that contains the BIOS le to the
oppy disk drive or the USB port.

Press <Alt> + <F2> during POST to display the following.

Note

ASUSTek EZ Flash 2 BIOS ROM Utility V3.06

Current ROM

A:

FLASH TYPE: WOINBOND W25X80

PATH: A:\

BOARD: P5KPL
VER: 0123
DATE: 07/17/07

(2) Enter BIOS setup program. Go to the Tools menu then select EZ Flash2

and press <Enter>.

You can switch between drives by pressing <Tab> before the correct le

is found. Then press <Enter>.

[Enter] Select or Load [B] Backup [ESC] Exit

[Tab] Switch [Up/Down/Home/End] Move

Note

Update ROM

BOARD: Unknown
VER: Unknown
DATE: Unknown

ASUS P5KPL 2-5

2.1.3 AFUDOS utility

The AFUDOS utility allows you to update the BIOS le in DOS environment using
a bootable oppy disk with the updated BIOS le. This utility also allows you to
copy the current BIOS le that you can use as backup when the BIOS fails or gets

corrupted during the updating process.

Copying the current BIOS

To copy the current BIOS le using the AFUDOS utility:

1. Copy the AFUDOS utility (afudos.exe) from the motherboard support CD to

the bootable oppy disk you created earlier.

2. Boot the system in DOS mode, then at the prompt type:

afudos /o[lename]

where the [lename] is any user-assigned lename not more than eight
alphanumeric characters for the main lename and three alphanumeric

characters for the extension name.

Main lename Extension name

A:\>afudos /oOLDBIOS1.rom

• Make sure that the oppy disk is not write-protected and has at least
1024KB free space to save the le.

• The succeeding BIOS screens are for reference only. The actual BIOS
screen displays may not be same as shown.

The utility returns to the DOS prompt after copying the current BIOS le.

3. Press <Enter>. The utility copies the current BIOS le to the oppy disk.

A:\>afudos /oOLDBIOS1.rom

AMI Firmware Update Utility - Version 1.19(ASUS V2.07(03.11.24BB))

Copyright (C) 2002 American Megatrends, Inc. All rights reserved.

Reading ash ..... done

Write to le...... ok

A:\>

2-6 Chapter 2: BIOS setup

Updating the BIOS le

To update the BIOS le using the AFUDOS utility:

1. Visit the ASUS website (www.asus.com) and download the latest BIOS le for
the motherboard. Save the BIOS le to a bootable oppy disk.

2. Copy the AFUDOS utility (afudos.exe) from the motherboard support CD to

the bootable oppy disk you created earlier.

3. Boot the system in DOS mode, then at the prompt type:

afudos /i[lename]

where [lename] is the latest or the original BIOS le on the bootable oppy disk.

A:\>afudos /iP5KPL.ROM

Write the BIOS lename on a piece of paper. You need to type the exact BIOS
lename at the DOS prompt.

5. The utility returns to the DOS prompt after the BIOS update process is
completed. Reboot the system from the hard disk drive.

A:\>afudos /iP5KPL.ROM

AMI Firmware Update Utility - Version 1.19(ASUS V2.07(03.11.24BB))

Copyright (C) 2002 American Megatrends, Inc. All rights reserved.

WARNING!! Do not turn off power during ash BIOS

Reading le ....... done

Reading ash ...... done

Advance Check ......

Erasing ash ...... done

Writing ash ...... done

Verifying ash .... done

Please restart your computer

A:\>

A:\>afudos /iP5KPL.ROM

AMI Firmware Update Utility - Version 1.19(ASUS V2.07(03.11.24BB))

Copyright (C) 2002 American Megatrends, Inc. All rights reserved.

WARNING!! Do not turn off power during ash BIOS

Reading le ....... done

Reading ash ...... done

Advance Check ......

Erasing ash ...... done

4. The utility veries the le and starts updating the BIOS.

Do not shut down or reset the system while updating the BIOS to prevent
system boot failure!

ASUS P5KPL 2-7

2.1.4 ASUS CrashFree BIOS 3 utility

The ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore

the BIOS le when it fails or gets corrupted during the updating process. You can
update a corrupted BIOS le using the motherboard support CD , the oppy disk or
the USB ash disk that contains the updated BIOS le.

• Prepare the motherboard support CD, the oppy disk or the USB ash disk

containing the updated motherboard BIOS before using this utility.

• Make sure that you rename the original or updated BIOS le in the oppy

disk or the USB ash disk to P5KPL.ROM.

Recovering the BIOS from a oppy disk

To recover the BIOS from a oppy disk:

1. Turn on the system.

2. Insert the oppy disk with the original or updated BIOS le to the oppy disk

drive.

3. The utility displays the following message and automatically checks the

oppy disk for the original or updated BIOS le.

Bad BIOS checksum. Starting BIOS recovery...

Checking for oppy...

When found, the utility reads the BIOS le and starts ashing the corrupted

BIOS le.

Bad BIOS checksum. Starting BIOS recovery...
Checking for oppy...
Floppy found!
Reading le “P5KPL.ROM”. Completed.
Start ashing...

DO NOT shut down or reset the system while updating the BIOS! Doing so can
cause system boot failure!

4. Restart the system after the utility completes the updating process.

Install memory module in DIMM_A1 or DIMM_B1 slots.

2-8 Chapter 2: BIOS setup

Recovering the BIOS from the support CD

To recover the BIOS from the support CD:

1. Remove any oppy disk from the oppy disk drive, then turn on the system.

2. Insert the support CD to the optical drive.

3. The utility displays the following message and automatically checks the

oppy disk for the original or updated BIOS le.

Bad BIOS checksum. Starting BIOS recovery...
Checking for oppy...
Floppy not found!
Checking for CD-ROM...
CD-ROM found!
Reading le “P5KPL.ROM”. Completed.
Start ashing...

When no oppy disk is found, the utility automatically checks the optical drive

for the original or updated BIOS le. The utility then updates the corrupted
BIOS le.

Bad BIOS checksum. Starting BIOS recovery...
Checking for oppy...

4. Restart the system after the utility completes the updating process.

The recovered BIOS may not be the latest BIOS version for this motherboard.

Visit the ASUS website (www.asus.com) to download the latest BIOS le.

• Only the USB ash disk with FAT 32/16 format and single partition can
support ASUS CrashFree BIOS 3. The device size should be smaller than

8GB.

• DO NOT shut down or reset the system while updating the BIOS! Doing so
can cause system boot failure!

Recovering the BIOS from the USB ash disk

To recover the BIOS from the USB ash disk:

1. Insert the USB ash disk that contains BIOS le to the USB port.

2. Turn on the system.

3. The utility will automatically checks the devices for the BIOS le When found,
the utility reads the BIOS le and starts ashing the corrupted BIOS le.

4. Restart the system after the utility completes the updating process.

ASUS P5KPL 2-9

Installing ASUS Update

To install ASUS Update:

1. Place the support CD in the optical drive. The

Drivers menu appears.

2. Click the

Utilities tab, then click Install ASUS Update. See page 2-3 for the

Utilities screen menu.

3. The ASUS Update utility is copied to your system.

2.1.5 ASUS Update utility

The ASUS Update is a utility that allows you to manage, save, and update the
motherboard BIOS in Windows® environment. The ASUS Update utility allows you
to:

• Save the current BIOS le

• Download the latest BIOS le from the Internet

• Update the BIOS from an updated BIOS le

• Update the BIOS directly from the Internet, and

• View the BIOS version information.

This utility is available in the support CD that comes with the motherboard
package.

ASUS Update requires an Internet connection either through a network or an
Internet Service Provider (ISP).

Quit all Windows® applications before you update the BIOS using this utility.

2-10 Chapter 2: BIOS setup

3. Select the ASUS FTP site nearest

you to avoid network trafc, or

click Auto Select. Click Next.

Updating the BIOS through the Internet

To update the BIOS through the Internet:

1. Launch the ASUS Update utility from the Windows

®

desktop by clicking Start

> Programs > ASUS > ASUSUpdate > ASUSUpdate. The ASUS Update
main window appears.

2. Select Update BIOS from
the Internet option from the
drop-down menu, then click Next.

ASUS P5KPL 2-11

Updating the BIOS through a BIOS le

To update the BIOS through a BIOS le:

1. Launch the ASUS Update utility from the Windows

®

desktop by clicking Start

> Programs > ASUS > ASUSUpdate > ASUSUpdate. The ASUS Update
main window appears.

2. Select

Update BIOS from a le

option from the drop-down menu,
then click Next.

4. From the FTP site, select the BIOS
version that you wish to download.
Click Next.

5. Follow the screen instructions to
complete the update process.

The ASUS Update utility is
capable of updating itself
through the Internet. Always
update the utility to avail all its
features.

3. Locate the BIOS le from the Open
window, then click Open.

4. Follow the screen instructions to
complete the update process.

2-12 Chapter 2: BIOS setup

• The default BIOS settings for this motherboard apply for most conditions
to ensure optimum performance. If the system becomes unstable after
changing any BIOS settings, load the default settings to ensure system
compatibility and stability. Select the Load Setup Defaults item under the
Exit Menu. See section “2.8 Exit Menu.”

• The BIOS setup screens shown in this section are for reference purposes only,
and may not exactly match what you see on your screen.

• Visit the ASUS website (www.asus.com) to download the latest BIOS le

for this motherboard.

2.2 BIOS setup program

This motherboard supports a programmable rmware chip that you can update

using the provided utility described in section “2.1 Managing and updating your
BIOS.”

Use the BIOS Setup program when you are installing a motherboard, reconguring
your system, or prompted to“Run Setup.” This section explains how to congure

your system using this utility.

Even if you are not prompted to use the Setup program, you can change the

conguration of your computer in the future. For example, you can enable the

security password feature or change the power management settings. This

requires you to recongure your system using the BIOS Setup program so that the
computer can recognize these changes and record them in the CMOS RAM of the

SPI chip.

The rmware chip on the motherboard stores the Setup utility. When you start up

the computer, the system provides you with the opportunity to run this program.

Press <Del> during the Power-On Self-Test (POST) to enter the Setup utility;

otherwise, POST continues with its test routines.

If you wish to enter Setup after POST, reboot the system by doing any of the
following procedures:

• Restart using the OS standard shut-down procedure.

• Press <Ctrl>+<Alt>+<Del> simultaneously.

• Press the reset button on the system chassis.

• Press the power button to turn the system off then back on.

Using the power button, reset button, or the <Ctrl>+<Alt>+<Del> keys to
force reset from a running operating system can cause damage to your data
or system. We recommend to always shut-down the system properly from the
operating system.

The Setup program is designed to make it as easy to use as possible. Being a
menu-driven program, it lets you scroll through the various sub-menus and make
your selections from the available options using the navigation keys.

ASUS P5KPL 2-13

2.2.2 Menu bar

The menu bar on top of the screen has the following main items:

Main For changing the basic system conguration

Advanced For changing the advanced system settings

Power For changing the advanced power management (APM)

conguration

Boot For changing the system boot conguration

Tools For conguring options for special functions

Exit For selecting the exit options and loading default

settings

2.2.1 BIOS menu screen

To select an item on the menu bar, press the right or left arrow key on the keyboard
until the desired item is highlighted.

Some of the navigation keys differ from one screen to another.

2.2.3 Navigation keys

At the bottom right corner of a menu screen are the navigation keys for that
particular menu. Use the navigation keys to select items in the menu and change
the settings.

Navigation keysSub-menu items

General help

Menu bar Conguration eldsMenu items

System Time [01:30:13]
System Date [Wed 01/09/2002]
Legacy Diskette A [1.44M, 3.5 in]

Primary IDE Master :[Not Detected]
Primary IDE Slave :[Not Detected]
SATA 1 :[Not Detected]
SATA 2 :[Not Detected]
SATA 3 :[Not Detected]
SATA 4 :[Not Detected]

IDE Conguration

System Information

Use [ENTER], [TAB]
or [SHIFT-TAB] to
select a eld.

Use [+] or [-] to
congure system time.

BIOS SETUP UTILITY

Main Advanced Power Boot Tools Exit

Select Screen
Select Item
Enter Go to Sub-screen
F1 General Help
F10 Save and Exit
ESC Exit

2-14 Chapter 2: BIOS setup

2.2.4 Menu items

The highlighted item on the menu bar

displays the specic items for that menu.

For example, selecting Main shows the Main
menu items.

The other items (Advanced, Power, Boot,
Tool, and Exit) on the menu bar have their
respective menu items.

2.2.5 Sub-menu items

A solid triangle before each item on any menu screen means that the iteam has a
sub-menu. To display the sub-menu, select the item and press <Enter>.

2.2.6 Conguration elds

These elds show the values for the menu items. If an item is user- congurable,
you can change the value of the eld opposite the item. You cannot select an item
that is not user-congurable.

A congurable eld is enclosed in brackets, and is highlighted when selected. To
change the value of a eld, select it then press <Enter> to display a list of options.

Refer to “2.2.7 Pop-up window.”

2.2.7 Pop-up window

Select a menu item then press <Enter> to display a pop-up window with the

conguration options for that item.

2.2.8 Scroll bar

A scroll bar appears on the right side of a
menu screen when there are items that do
not t on the screen. Press the
Up/Down arrow keys or <Page Up> /<Page
Down> keys to display the other items on the
screen.

2.2.9 General help

At the top right corner of the menu screen is
a brief description of the selected item.

System Time [11:10:19]
System Date [Thu 03/27/2003]
Legacy Diskette A [1.44M, 3.5 in]
Legacy Diskette B [Disabled]

Primary IDE Master :[Not Detected]
Primary IDE Slave :[Not Detected]
Secondary IDE Master :[Not Detected]
Secondary IDE Slave :[Not Detected]
Third IDE Master :[Not Detected]
Fourth IDE Master :[Not Detected]
IDE Configuration

System Information

Use [ENTER], [TAB]
or [SHIFT-TAB] to
select a field.

Use [+] or [-] to
configure system time.

Select Screen
Select Item
+- Change Field
Tab Select Field
F1 General Help
F10 Save and Exit
ESC Exit

Main menu items

Scroll bar

Select Screen
Select Item
+- Change Option
F1 General Help
F10 Save and Exit
ESC Exit

Advanced Chipset settings

WARNING: Setting wrong values in the sections below
may cause system to malfunction.

Configure DRAM Timing by SPD [Enabled]
Memory Acceleration Mode [Auto]
DRAM Idle Timer [Auto]
DRAm Refresh Rate [Auto]

Graphic Adapter Priority [AGP/PCI]
Graphics Aperture Size [ 64 MB]
Spread Spectrum [Enabled]

ICH Delayed Transaction [Enabled]

MPS Revision [1.4]

Pop-up window

ASUS P5KPL 2-15

2.3 Main menu

When you enter the BIOS Setup program, the Main menu screen appears, giving
you an overview of the basic system information.

2.3.1 System Time [xx:xx:xx]

Allows you to set the system time.

2.3.2 System Date [Day xx/xx/xxxx]

Allows you to set the system date.

2.3.3 Legacy Diskette A [1.44M, 3.5 in.]

Sets the type of oppy drive installed. Conguration options: [Disabled] [360K,

5.25 in.] [1.2M, 5.25 in.] [720K, 3.5 in.] [1.44M, 3.5 in.] [2.88M, 3.5 in.]

Refer to section “2.2.1 BIOS menu screen” for information on the menu screen
items and how to navigate through them.

Use [ENTER], [TAB]
or [SHIFT-TAB] to
select a eld.

Use [+] or [-] to
congure system time.

System Time [01:31:13]

System Date [Wed 01/09/2002]
Legacy Diskette A [1.44M, 3.5 in]

Primary IDE Master :[Not Detected]
Primary IDE Slave :[Not Detected]
SATA 1 :[Not Detected]
SATA 2 :[Not Detected]
SATA 3 :[ST380817AS]
SATA 4 :[Not Detected]

IDE Conguration

System Information

BIOS SETUP UTILITY

Main Advanced Power Boot Tools Exit

Select Screen
Select Item
Enter Go to Sub-screen
F1 General Help
F10 Save and Exit
ESC Exit

2-16 Chapter 2: BIOS setup

2.3.4 Primary, Third and Fourth IDE Master/Slave

While entering Setup, the BIOS automatically detects the presence of IDE devices.
There is a separate sub-menu for each IDE device. Select a device item then
press <Enter> to display the IDE device information.

The BIOS automatically detects the values opposite the dimmed items (Device,

Vendor, Size, LBA Mode, Block Mode, PIO Mode, Async DMA, Ultra DMA, and
SMART monitoring). These values are not user-congurable. These items show

N/A if no IDE device is installed in the system.

Type [Auto]

Selects the type of IDE drive. Setting to Auto allows automatic selection of the

appropriate IDE device type. Select CDROM if you are specically conguring a

CD-ROM drive. Select ARMD (ATAPI Removable Media Device) if your device

is either a ZIP, LS-120, or MO drive. Conguration options: [Not Installed] [Auto]

[CDROM] [ARMD]

LBA/Large Mode [Auto]

Enables or disables the LBA mode. Setting to Auto enables the LBA mode if the
device supports this mode, and if the device was not previously formatted with LBA

mode disabled. Conguration options: [Disabled] [Auto]

Block (Multi-sector Transfer) M [Auto]

Enables or disables data multi-sectors transfers. When set to Auto, the data
transfer from and to the device occurs multiple sectors at a time if the device
supports multi-sector transfer feature. When set to [Disabled], the data transfer

from and to the device occurs one sector at a time. Conguration options:

[Disabled] [Auto]

Primary IDE Master

Device : Not Detected

Type [Auto]

LBA/Large Mode [Auto]
Block(Multi-Sector Transfer) M [Auto]
PIO Mode [Auto]
DMA Mode [Auto]
SMART Monitoring [Auto]
32Bit Data Transfer [Enabled]

Select the type
of device connected
to the system

BIOS SETUP UTILITY

Main Advanced Power Boot Tools Exit

Select Screen
Select Item
Enter Go to Sub-screen
F1 General Help
F10 Save and Exit
ESC Exit

ASUS P5KPL 2-17

PIO Mode [Auto]

Selects the PIO mode.

Conguration options: [Auto] [0] [1] [2] [3] [4]

DMA Mode [Auto]

Selects the DMA mode. Conguration options: [Auto]

SMART Monitoring [Auto]

Sets the Smart Monitoring, Analysis, and Reporting Technology.

Conguration options: [Auto] [Disabled] [Enabled]

32Bit Data Transfer [Enabled]

Enables or disables 32-bit data transfer.

Conguration options: [Disabled] [Enabled]

2.3.5 IDE Conguration

The items in this menu allow you to set or change the congurations for the IDE

devices installed in the system. Select an item then press <Enter> if you wish to

congure the item.

IDE Conguration

ATA/IDE Conguration [Enhanced]

IDE Detect Time Out (Sec) [35]

ATA/IDE Conguration [Enhanced]

Conguration options: [Disabled] [Compatible] [Enhanced]

IDE Detect Time Out [35]

Selects the time out value for detecting ATA/ATAPI devices.

Conguration options: [0] [5] [10] [15] [20] [25] [30] [35]

Disabled
Compatible
Enhanced

Options

2-18 Chapter 2: BIOS setup

2.3.6 System Information

This menu gives you an overview of the general system specications. The BIOS

automatically detects the items in this menu.

AMI BIOS

Displays the auto-detected BIOS information.

Processor

Displays the auto-detected CPU specication.

System Memory

Displays the auto-detected system memory.

AMIBIOS

Version : 0123
Build Date : 07/17/07

Processor

Type : Genuine Intel(R) CPU 2.80GHz
Speed : 2800MHz
Count : 2

System Memory

Usable Size: 512MB

ASUS P5KPL 2-19

Select Screen
Select Item
Enter Go to Sub-screen
F1 General Help
F10 Save and Exit
ESC Exit

2.4 Advanced menu

The Advanced menu items allow you to change the settings for the CPU and other
system devices.

Take caution when changing the settings of the Advanced menu items. Incorrect

eld values can cause the system to malfunction.

JumperFree Conguration

USB Conguration

CPU Conguration
Chipset

Onboard Devices Conguration
PCIPnP

2.4.1 JumperFree Conguration

AI Overclocking [Auto]

Allows selection of CPU overclocking options to achieve desired CPU internal

frequency. Select either one of the preset overclocking conguration options:

Manual - allows you to individually set overclocking parameters.

Auto - loads the optimal settings for the system.

Overclock Prole - loads overclocking proles with optimal parameters for stability

when overclocking.

Congure System Frequency/Voltage

AI Overclocking [Auto]

DRAM Frequency [Auto]

Select the target CPU
frequency, and the
relevant parameters
will be auto-adjusted.
Frequencies higher
than CPU manufacturer
recommends are not
guaranteed to be
stable. If the system

Adjust system
frequency/voltage

BIOS SETUP UTILITY

Main Advanced Power Boot Tools Exit

2-20 Chapter 2: BIOS setup

FSB/CPU External Frequency Synchronization

Front Side Bus CPU External Frequency

FSB 1066 266 MHz

FSB 800 200 MHz

DRAM Frequency [Auto]

Allows you to set the DDR2 operating frequency.

Conguration options: [Auto] [667 MHz] [800 MHz]

Selecting a very high DRAM frequency may cause the system to become
unstable! If this happens, revert to the default setting.

The following item appears only when you set the AI Overclocking item to
[Manual].

CPU Frequency [XXX]

Displays the frequency sent by the clock generator to the system bus and PCI bus.
The value of this item is auto-detected by the BIOS. Use the <+> and <-> keys to
adjust the CPU frequency. You can also type the desired CPU frequency using the
numeric keypad. The values range from 133 to 500. Refer to the table below for
the correct Front Side Bus and CPU External Frequency settings.

The Module Version and USB Devices Enabled items show the
auto-detected values. If no USB device is detected, the item shows None.

2.4.2 USB Conguration

The items in this menu allows you to change the USB-related features. Select an

item then press <Enter> to display the conguration options.

USB Conguration

Module Version - 2.24.0-13.4

USB Devices Enabled:
None

USB Functions [8 USB Ports]

USB 2.0 Controller [Enabled]
Legacy USB Support [Auto]
USB 2.0 Controller Mode [HiSpeed]
BIOS EHCI Hand-Off [Enabled]

USB Mass Storage Device Conguration

Options

Disabled
2 USB Ports
4 USB Ports
6 USB Ports
8 USB Ports

Options

PCI Express Frequency [Auto]

Allows you to select PCI express frequency. Conguration options: [Auto] [90] [91]
[92] [93] [94] [95] [96] [97] [98] [99] [100] [101] [102] [103] [104]

ASUS P5KPL 2-21

USB Functions [8 USB Ports]

Allows you to disable or select the different values of the USB functions.

Conguration options: [Disabled] [2 USB Ports] [4 USB Ports] [6 USB Ports] [8

USB Ports]

USB 2.0 Controller [Enabled]

Allows you to enable or disable USB 2.0 controller. Conguration options:

[Enabled] [Disabled]

Legacy USB Support [Auto]

Allows you to enable or disable support for USB devices on legacy operating
systems (OS). Setting to Auto allows the system to detect the presence of USB
devices at startup. If detected, the USB controller legacy mode is enabled. If no
USB device is detected, the legacy USB support is disabled.

Conguration options: [Disabled] [Enabled] [Auto]

USB 2.0 Controller Mode [HiSpeed]

Allows you to congure the USB 2.0 controller in HiSpeed (480 Mbps) or Full
Speed (12 Mbps). Conguration options: [FullSpeed] [HiSpeed]

BIOS EHCI Hand-Off [Enabled]

Allows you to enable support for operating systems without an EHCI hand-off

feature. Conguration options: [Disabled] [Enabled]

USB Mass Storage Device Conguration

Allows you to congure the USB Mass Storage Class Devices.

USB Mass Storage Reset Delay [20 Sec]

Sets the number of seconds POST waits for the USB mass storage device
after start unit command. Conguration options: [10 Sec] [20 Sec] [30 Sec]
[40 Sec]

Emulation Type [Auto]

Selects the Emulation type. When set to Auto, USB devices less than 530MB
will be emulated as Floppy and remaining as hard drive. Forced FDD option
can be used to force a HDD formatted drive to boost as FDD drive to boot

as FDD. Conguration options: [Auto] [Floppy] [Forced FDD] [Hard Disk]

[CDROM]

USB Mass Storage Device Conguration

USB Mass Storage Reset Delay [20 Sec]

Device #1 HTS42404 OM9AT00

Emulation Type [Auto]

Number of seconds
POST waits for the
USB mass storage
device after start
unit command.

2-22 Chapter 2: BIOS setup

2.4.3 CPU Conguration

The items in this menu show the CPU-related information that the BIOS
automatically detects.

Congure advanced CPU settings

Module Version: 3C.0E

Manufacturer: Intel
Brand String: Genuine Intel(R) CPU 2.80GHz
Frequency : 2.80GHz
FSB Speed : 800MHz
Cache L1 : 32 KB
Cache L2 : 2048 KB
Ratio Status: Unlocked (Max:14, Min:14)
Ratio Actual Value: 14
CPUID : F44

CPU ratio Adjustment [Auto]

Hardware Prefetcher: [Enabled]
Adjacent Cache Line Prefetch: [Enabled]
Max CPUID Value Limit: [Disabled]
CPU TM function: [Enabled]
Execute Disable Bit [Enabled]
Single Logical Processor Mode [Disabled]

Options

Auto
MANUAL

CPU ratio adjustment [Auto]

Allows you to select the CPU ratio adjustment mode. Select [Manual] to set Ratio

CMOS Setting. Conguration options: [Auto] [Manual]

Ratio CMOS Setting [14]

Sets the ratio between the CPU Core Clock and the Front Side Bus
frequency. The default value of this item is auto-detected by BIOS. Use the
<+> - <-> keys to adjust the BIOS.

Hardware Prefetcher [Enabled]

Enables or disables the Hardware Prefetcher feature.

Conguration options: [Disabled] [Enabled]

Adjacent Cache Line Prefetch [Enabled]

Enables or disables the Adjacent Cache Line Prefetch feature.

Conguration options: [Disabled] [Enabled]

Hyper Threading Technology [Enabled]
Intel(R) SpeedStep(tm) tech. [Enabled

Options

The following item appears only when you set the CPU ratio adjustment item to
[Manual].

ASUS P5KPL 2-23

2.4.4 Chipset

The Chipset menu allows you to change the advanced chipset settings. Select an
item then press <Enter> to display the sub-menu.

Advanced Chipset Settings

WARNING: Setting wrong values in below sections
may cause system to malfunction.

North Bridge Conguration

South Bridge Conguration

Max CPUID Value Limit [Disabled]

Enable this item to boot legacy operating systems that cannot support CPUs with

extended CPUID functions. Conguration options: [Disabled] [Enabled]

CPU TM function [Enabled]

Allows you to enable or disable the CPU internal thermal control function. In TM

mode, the CPU power consumption is reduced. Conguration options: [Disabled]

[Enabled]

Execute Disable Bit [Enabled]

Allows you to Enable/disable Execute Disable Function.

Conguration options: [Disabled] [Enabled]

Single Logical Processor Mode [Disabled]

Allows you to enable or disable the Single Logical Processor Mode. When
enabled, only COREO, logical processor 0 remains active.

Conguration options: [Disabled] [Enabled]

Hyper Threading Technology [Enabled]

Allows you to enable or disable the processor Hyper-Threading Technology.

Conguration options: [Disabled] [Enabled]

Intel® SpeedStep Technology [Enabled]

Allows you to use the Enhanced Intel® SpeedStep® Technology. When set to
[Enabled], you can adjust the system power settings in the operating system to
use the EIST feature. Set this item to [Disabled] if you do not want to use the EIST.

Conguration options: [Enabled] [Disabled]

Congure North Bridge
features.

The following item appears only when you installed an Intel® Pentium® 4 or
later CPU that supports the Enhanced Intel SpeedStep® Technology (EIST).

2-24 Chapter 2: BIOS setup

North Bridge Conguration

Memory Remap Feature [Enabled]

Allows you to enable or disable the remapping of overlapped PCI memory above

the total physical memory. Conguration options: [Enabled] [Disabled]

Congure DRAM Timing by SPD [Enabled]

Allows you to enable or disable congurating DRAM Timing by SPD.
Conguration options: [Enabled] [Disabled]

North Bridge chipset Conguration

Memory Remap Feature [Enabled]

Congure DRAM Timing by SPD [Enabled]

Initiate Graphic Adapter [PEG/PCI]

ENABLE: Allow
remapping of
overlapped PCI memory
above the total
physical memory.

DISABLE: Do not allow
remapping of memory

Initiate Graphic Adapter [PEG/PCI]

Allows you to select the graphics controller as the primary boot device.

Conguration options: [PCI/PEG] [PEG/PCI]

South Bridge Conguration

Options

South Bridge chipset Conguration

Audio Controller [Azalia]

Front Panel Support Type [HD Audio]

HD Audio Controller [Azalia]

Allows you to set the audio controller. Conguration options: [Azalia] [All Disabled]

Front Panel Support Type [HD Audio]

Allows you to select the front panel support type. If High Denition Audio
Front Panel used, please set HD Audio mode. Conguration options: [AC97]

[HD Audio]

Azalia
All Disabled

ASUS P5KPL 2-25

2.4.5 Onboard Devices Conguration

Congure Win627DHG-A Super IO Chipset

Onboard PCIE GbE LAN [Enabled]

LAN Option ROM [Disabled]

Serial Port1 Address [3F8/IRQ4]
Parallel Port Address [378]
Parallel Port Mode [ECP]
ECP Mode DMA Channel [DMA3]
Parallel Port IRQ [IRQ7]

Onboard PCIE GbE LAN [Enabled]

Allows you to enable or disable the onboard LAN controller.

Conguration options: [Enabled] [Disabled]

LAN Option ROM [Disabled]

Allows you to enable or disable the boot ROM in the onboard LAN controller.
This item appears only when the Onboard LAN item is set to Enabled.

Conguration options: [Disabled] [Enabled]

Serial Port1 Address [3F8/IRQ4]

Allows you to select the Serial Port1 base address.

Conguration options: [Disabled] [3F8/IRQ4] [2F8/IRQ3] [3E8/IRQ4] [2E8/IRQ3]

Parallel Port Address [378]

Allows you to select the Parallel Port base addresses.

Conguration options: [Disabled] [378] [278] [3BC]

Parallel Port Mode [ECP]

Allows you to select the Parallel Port mode.

Conguration options: [Normal] [Bi-Directional] [EPP] [ECP]

ECP Mode DMA Channel [DMA3]

Appears only when the Parallel Port Mode is set to [ECP]. This item
allows you to set the Parallel Port ECP DMA.

Conguration options: [DMA0] [DMA1] [DMA3]

Parallel Port IRQ [IRQ7]

Allows you to select parallel port IRQ. Conguration options: [IRQ5] [IRQ7]

Onboard PCIEX GBE LAN_
Enable/Disable

2-26 Chapter 2: BIOS setup

2.4.6 PCI PnP

The PCI PnP menu items allow you to change the advanced settings for PCI/PnP
devices. The menu includes setting IRQ and DMA channel resources for either

PCI/PnP or legacy ISA devices, and setting the memory size block for legacy ISA

devices.

Take caution when changing the settings of the PCI PnP menu items. Incorrect

eld values can cause the system to malfunction.

Advanced PCI/PnP Settings

WARNING: Setting wrong values in below sections
may cause system to malfunction.

Plug And Play O/S [No]

PCI Latency Timer [64]
Allocate IRQ to PCI VGA [Yes]
Palette Snooping [Disabled]

IRQ-3 assigned to [PCI Device]
IRQ-4 assigned to [PCI Device]
IRQ-5 assigned to [PCI Device]
IRQ-7 assigned to [PCI Device]
IRQ-9 assigned to [PCI Device]
IRQ-10 assigned to [PCI Device]
IRQ-11 assigned to [PCI Device]
IRQ-14 assigned to [PCI Device]
IRQ-15 assigned to [PCI Device]

Plug and Play O/S [No]

When set to [No], BIOS congures all the devices in the system. When set to

[Yes] and if you install a Plug and Play operating system, the operating system

congures the Plug and Play devices not required for boot.
Conguration options: [No] [Yes]

PCI Latency Timer [64]

Allows you to select the value in units of PCI clocks for the PCI device latency

timer register. Conguration options: [32] [64] [96] [128] [160] [192] [224] [248]

Allocate IRQ to PCI VGA [Yes]

When set to [Yes], BIOS assigns an IRQ to PCI VGA card if the card requests for
an IRQ. When set to [No], BIOS does not assign an IRQ to the PCI VGA card even

if requested. Conguration options: [Yes] [No]

Palette Snooping [Disabled]

When set to [Enabled], the pallete snooping feature informs the PCI devices that
an ISA graphics device is installed in the system so that the latter can function

correctly. Conguration options: [Disabled] [Enabled]

NO: lets the BIOS
congure all the
devices in the system.
YES: lets the operating
system congure Plug and
Play (PnP) devices not
required for boot if
your system has a Plug
and Play operating
system.

Select Screen
Select Item
Enter Go to Sub-screen
F1 General Help
F10 Save and Exit
ESC Exit

ASUS P5KPL 2-27

2.5 Power menu

The Power menu items allow you to change the settings for the Advanced
Power Management (APM). Select an item then press <Enter> to display the

conguration options.

2.5.1 Suspend Mode [Auto]

Allows you to select the Advanced Conguration and Power Interface (ACPI) state

to be used for system suspend.

Conguration options: [S1 (POS) Only] [S3 Only] [Auto]

2.5.2 Repost Video on S3 Resume [No]

Determines whether to invoke VGA BIOS post on S3/STR resume.

Conguration options: [No] [Yes]

2.5.3 ACPI 2.0 Support [Disabled]

Allows you to add more tables for Advanced Conguration and Power Interface
(ACPI) 2.0 specications. Conguration options: [Disabled] [Enabled]

2.5.4 ACPI APIC Support [Enabled]

Allows you to enable or disable the Advanced Conguration and Power Interface
(ACPI) support in the Application-Specic Integrated Circuit (ASIC). When set

to Enabled, the ACPI APIC table pointer is included in the RSDT pointer list.

Conguration options: [Disabled] [Enabled]

Suspend Mode [Auto]

Repost Video on S3 Resume [No]
ACPI 2.0 Support [Disabled]
ACPI APIC Support [Enabled]

APM Conguration
Hardware Monitor

IRQ-xx assigned to [PCI Device]

When set to [PCI Device], the specic IRQ is free for use of PCI/PnP devices.

When set to [Reserved], the IRQ is reserved for legacy ISA devices.

Conguration options: [PCI Device] [Reserved]

Select the ACPI state
used for System
Suspend.

BIOS SETUP UTILITY

Main Advanced Power Boot Tools Exit

2-28 Chapter 2: BIOS setup

2.5.5 APM Conguration

APM Conguration

Power Button Mode [On/Off]

Restore on AC Power Loss [Power Off]

Resume On Ring [Disabled]
Resume On By PCI Devices [Disabled]
Resume On By PCIE Devices [Disabled]
Resume On RTC Alarm [Disabled]
Power On By PS/2 Keyboard [Disabled]
Power On By PS/2 Mouse [Disabled]

Power Button Mode [On/Off]

Allows you to set the power button mode. Conguration options: [On/Off]

[Suspend]

Restore on AC Power Loss [Power Off]

When set to Power Off, the system goes into off state after an AC power loss.
When set to Power On, the system goes on after an AC power loss. When set to
Last State, the system goes into either off or on state, whatever the system state
was before the AC power loss. Conguration options: [Power Off] [Power On]
[Last State]

Resume On Ring [Disabled]

Allows you to enable or disable RI to generate a wake event.

Conguration options: [Disabled] [Enabled]

Resume On By PCI Devices [Disabled]

When set to [Enabled], this parameter allows you to wake the system through a
PCI LAN or modem card. This feature requires an ATX power supply that provides

at least 1A on the +5VSB lead. Conguration options: [Disabled] [Enabled]

Resume On By PCIE Devices [Disabled]

When set to [Enabled], this parameter allows you to wake the system through a
PCI Express card. This feature requires an ATX power supply that provides at least

1A on the +5VSB lead. Conguration options: [Disabled] [Enabled]

Resume On By RTC Alarm [Disabled]

Allows you to enable or disable RTC to generate a wake event. When this item is
set to Enabled, the items RTC Alarm Date, RTC Alarm Hour, RTC Alarm Minute,
and RTC Alarm Second appear with set values.

Conguration options: [Disabled] [Enabled]

Go into On/Off,
or Suspend when
Power button
is pressed.

ASUS P5KPL 2-29

Power On By PS/2 Keyboard [Disabled]

Allows you to use specic keys on the keyboard to turn on the system. This

feature requires an ATX power supply that provides at least 1A on the +5VSB lead.

Conguration options: [Disabled] [Space Bar] [Ctrl-Esc] [Power Key]

Power On By PS/2 Mouse [Disabled]

When set to [Enabled], this parameter allows you to use the PS/2 mouse to turn on
the system. This feature requires an ATX power supply that provides at least 1A on

the +5VSB lead. Conguration options: [Disabled] [Enabled]

2.5.6 Hardware Monitor

Hardware Monitor

CPU Temperature [55.5ºC/131.5ºF]

MB Temperature [37ºC/98.5ºF]

CPU Fan Speed [2884RPM]
CPU Q-Fan Control [Disabled]
Chassis Fan Speed [N/A]

VCORE Voltage [ 1.344V]

3.3V Voltage [ 3.280V]
5V Voltage [ 5.145V]
12V Voltage [11.932V]

CPU Temperature [xxxºC/xxxºF]

The onboard hardware monitor automatically detects and displays the CPU
temperatures. Select Ignored if you do not wish to display the detected
temperatures.

MB Temperature [xxxºC/xxxºF]

The onboard hardware monitor automatically detects and displays the MB
temperatures. Select Ignored if you do not wish to display the detected
temperatures.

CPU Fan Speed (RPM) [xxxxRPM] or [N/A] or [Ignored]

The onboard hardware monitor automatically detects and displays the CPU
fan speed in rotations per minute (RPM). If the fan is not connected to the

motherboard, the eld shows N/A. Select Ignored if you do not wish to display the

detected speed.

CPU Q-Fan Control [Disabled]

Allows you to enable or disable the Q-Fan control.

Conguration options: [Disabled] [Enabled]

CPU Temperature

Select Screen
Select Item
Enter Go to Sub-screen
F1 General Help
F10 Save and Exit
ESC Exit

2-30 Chapter 2: BIOS setup

Select Screen
Select Item
Enter Go to Sub-screen
F1 General Help
F10 Save and Exit
ESC Exit

Chassis Fan Speed [xxxxRPM] or [N/A] or [Ignored]

The onboard hardware monitor automatically detects and displays the chassis fan speed

in rotations per minute (RPM). If the fan is not connected to the chassis, the specic eld

shows N/A. Select Ignored if you do not wish to display the detected speed.

VCORE Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage

The onboard hardware monitor automatically detects the voltage output through
the onboard voltage regulators.

2.6 Boot menu

The Boot menu items allow you to change the system boot options. Select an item
then press <Enter> to display the sub-menu.

Boot settings

Boot Device Priority

Boot Settings Conguration
Security

2.6.1 Boot Device Priority

Boot Device Priority

1st Boot Device [1st FLOPPY DRIVE]

2nd Boot Device [Hard Drive]
3rd Boot Device [ATAPI CD-ROM]

1st ~ xxth Boot Device [1st Floppy Drive]

These items specify the boot device priority sequence from the available devices.
The number of device items that appears on the screen depends on the number of

devices installed in the system. Conguration options: [xxxxx Drive] [Disabled]

Species the Boot
Device Priority
sequence.

A virtual oppy disk
drive (Floppy Drive B:
) may appear when you
set the CD-ROM drive
as the rst boot
device.

Species the boot
sequence from the
available devices.

BIOS SETUP UTILITY

Main Advanced Power Boot Tools Exit

BIOS SETUP UTILITY

Main Advanced Power Boot Tools Exit

ASUS P5KPL 2-31

2.6.2 Boot Settings Conguration

Boot Settings Conguration

Quick Boot [Enabled]

Full Screen Logo [Enabled]
AddOn ROM Display Mode [Force BIOS]
Bootup Num-Lock [On]
PS/2 Mouse Support [Auto]
Wait For ‘F1’ If Error [Enabled]
Hit ‘DEL’ Message Display [Enabled]
Interrupt 19 Capture [Disabled]

Allows BIOS to skip
certain tests while
booting. This will
decrease the time
needed to boot the
system.

Set this item to [Enabled] to use the ASUS MyLogo2™ feature.

Quick Boot [Enabled]

Enabling this item allows the BIOS to skip some power on self tests (POST) while
booting to decrease the time needed to boot the system. When set to [Disabled],
BIOS performs all the POST items.

Conguration options: [Disabled] [Enabled]

Full Screen Logo [Enabled]

This allows you to enable or disable the full screen logo display feature.

Conguration options: [Disabled] [Enabled]

Add On ROM Display Mode [Force BIOS]

Sets the display mode for option ROM. Conguration options: [Force BIOS]
[Keep Current]

Bootup Num-Lock [On]

Allows you to select the power-on state for the NumLock.

Conguration options: [Off] [On]

PS/2 Mouse Support [Auto]

Allows you to enable or disable support for PS/2 mouse.

Conguration options: [Disabled] [Enabled] [Auto]

Wait for ‘F1’ If Error [Enabled]

When set to Enabled, the system waits for the F1 key to be pressed when error

occurs. Conguration options: [Disabled] [Enabled]

2-32 Chapter 2: BIOS setup

If you forget your BIOS password, you can clear it by erasing the CMOS Real
Time Clock (RTC) RAM. See section “1.9 Jumpers” for information on how to
erase the RTC RAM.

Hit ‘DEL’ Message Display [Enabled]

When set to Enabled, the system displays the message “Press DEL to run Setup”

during POST. Conguration options: [Disabled] [Enabled]

Interrupt 19 Capture [Disabled]

When set to [Enabled], this function allows the option ROMs to trap Interrupt 19.

Conguration options: [Disabled] [Enabled]

2.6.3 Security

The Security menu items allow you to change the system security settings. Select

an item then press <Enter> to display the conguration options.

Security Settings

Supervisor Password : Not Installed
User Password : Not Installed

Change Supervisor Password

Change User Passward

<Enter> to change
password.
<Enter> again to
disabled password.

Change Supervisor Password

Select this item to set or change the supervisor password. The Supervisor
Password item on top of the screen shows the default Not Installed. After you set a
password, this item shows Installed.

To set a Supervisor Password:

1. Select the Change Supervisor Password item and press <Enter>.

2. From the password box, type a password composed of at least six letters
and/or numbers, then press <Enter>.

3. Conrm the password when prompted.

The message “Password Installed” appears after you successfully set your
password.

To change the supervisor password, follow the same steps as in setting a user
password.

To clear the supervisor password, select the Change Supervisor Password then
press <Enter>. The message “Password Uninstalled” appears.

ASUS P5KPL 2-33

After you have set a supervisor password, the other items appear to allow you to
change other security settings.

User Access Level [Full Access]

This item allows you to select the access restriction to the Setup items.

Conguration options: [No Access] [View Only] [Limited] [Full Access]

No Access prevents user access to the Setup utility.

View Only allows access but does not allow change to any eld.

Limited allows changes only to selected elds, such as Date and Time.

Full Access allows viewing and changing all the elds in the Setup utility.

Change User Password

Select this item to set or change the user password. The User Password item on
top of the screen shows the default Not Installed. After you set a password, this
item shows Installed.

To set a User Password:

1. Select the Change User Password item and press <Enter>.

2. On the password box that appears, type a password composed of at least six
letters and/or numbers, then press <Enter>.

3. Conrm the password when prompted.

The message “Password Installed” appears after you set your password
successfully.

To change the user password, follow the same steps as in setting a user password.

Clear User Password

Select this item to clear the user password.

Password Check [Setup]

When set to [Setup], BIOS checks for user password when accessing the Setup
utility. When set to [Always], BIOS checks for user password both when accessing

Setup and booting the system. Conguration options: [Setup] [Always]

Security Settings

Supervisor Password : Not Installed
User Password : Not Installed

Change Supervisor Password

User Access Level [Full Access]
Change User Password
Clear User Password
Password Check [Setup]

<Enter> to change
password.
<Enter> again to
disabled password.

2-34 Chapter 2: BIOS setup

2.7 Tools menu

The Tools menu items allow you to launch special functions. Select an item then
press <Enter> to display the sub-menu.

Select Screen

Select Item

+-

Change Field

Enter Go to Sub Screen
F1 General Help
F10 Save and Exit
ESC Exit

BIOS SETUP UTILITY

Main Advanced Power Boot Tools Exit

ASUS EZ Flash 2

Press ENTER to run
the utility to select
and update BIOS.
This utility doesn't
support :

1.NTFS format

ASUS EZ Flash 2

Allows you to run ASUS EZ Flash 2. When you press <Enter>, a conrmation

message appears. Use the left/right arrow key to select between [Yes] or [No],

then press <Enter> to conrm your choice. See page 2-3, section 2.1.2 for details.

ASUSTek EZ Flash 2 BIOS ROM Utility V3.06

Current ROM

Update ROM

A:

Note

[Enter] Select or Load [B] Backup [ESC] Exit

[Tab] Switch [Up/Down/Home/End] Move

FLASH TYPE: WOINBOND W25X80

PATH: A:\

BOARD: P5KPL
VER: 0123
DATE: 07/17/07

BOARD: Unknown
VER: Unknown
DATE: Unknown

• This function can not support IDE CD-ROM, IDE DVD-ROM, or External
SATA devices.

• This function only supports FAT 32/16 format.

Select Screen
Select Item
Enter Go to Sub-screen
F1 General Help
F10 Save and Exit
ESC Exit

ASUS P5KPL 2-35

Exit system setup
after saving the
changes.

F10 key can be used
for this operation.

Exit & Discard Changes

Select this option only if you do not want to save the changes that you made to

the Setup program. If you made changes to elds other than System Date, System
Time, and Password, the BIOS asks for a conrmation before exiting.

Discard Changes

This option allows you to discard the selections you made and restore the

previously saved values. After selecting this option, a conrmation appears. Select

OK to discard any changes and load the previously saved values.

Load Setup Defaults

This option allows you to load the default values for each of the parameters on the

Setup menus. When you select this option or if you press <F5>, a conrmation

window appears. Select OK to load default values. Select Exit & Save Changes or
make other changes before saving the values to the non-volatile RAM.

Exit & Save Changes

Once you are nished making your selections, choose this option from the Exit

menu to ensure the values you selected are saved to the CMOS RAM. An onboard
backup battery sustains the CMOS RAM so it stays on even when the PC is turned
off. When you select this option, a conrmation window appears. Select OK to save
changes and exit.

2.8 Exit menu

Pressing <Esc> does not immediately exit this menu. Select one of the options
from this menu or <F10> from the legend bar to exit.

The Exit menu items allow you to load the optimal or failsafe default values for the
BIOS items, and save or discard your changes to the BIOS items.

Exit Options

Exit & Save Changes

Exit & Discard Changes
Discard Changes

Load Setup Defaults

If you attempt to exit the Setup program without saving your changes, the
program prompts you with a message asking if you want to save your changes
before exiting. Press <Enter> to save the changes while exiting.

BIOS SETUP UTILITY

Main Advanced Power Boot Tools Exit

2-36 Chapter 2: BIOS setup

ASUS P5KPL 3-1

3

Software

support

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

3-2 Chapter 3: Software support

If Autorun is NOT enabled in your computer, browse the contents of the support

CD to locate the le ASSETUP.EXE from the BIN folder. Double-click the

ASSETUP.EXE to run the CD.

Click an item to install

3.1 Installing an operating system

This motherboard supports 32/64-bit Windows® XP/Vista/2000/2003 Server
operating systems (OS). Always install the latest OS version and corresponding

updates to maximize the features of your hardware.

3.2 Support CD information

The support CD that came with the motherboard package contains the drivers,
software applications, and utilities that you can install to avail all motherboard
features.

3.2.1 Running the support CD

Place the support CD to the optical drive. The CD automatically displays the
Drivers menu if Autorun is enabled in your computer.

• Motherboard settings and hardware options vary. Use the setup
procedures presented in this chapter for reference only. Refer to your OS
documentation for detailed information.

• Make sure that you install Windows

®

2003 Service Pack 4 or the Windows®
XP Service Pack2 or later versions before installing the drivers for better
compatibility and system stability.

The contents of the support CD are subject to change at any time without
notice. Visit the ASUS website(www.asus.com) for updates.

Click an icon to display

support CD/motherboard

information

ASUS P5KPL 3-3

3.2.2 Drivers menu

The drivers menu shows the available device drivers if the system detects installed
devices. Install the necessary drivers to activate the devices.

ASUS InstAll-Drivers Installation Wizard

Installs the ASUS InstAll-Drivers Installation Wizard.

Intel Chipset Inf Update Program

Installs the Intel® chipset Inf update program.

Realtek Audio Driver

Installs the Realtek audio driver and application.

L1 Gigabit Ethernet Driver

Installs the L1 Gigabit Ethernet driver and application.

3-4 Chapter 3: Software support

3.2.3 Utilities menu

The Utilities menu shows the applications and other software that the motherboard
supports.

ASUS InstAll-Installation Wizard for Utilities

Installs all of the utilities through the Installation Wizard.

ASUS Update

The ASUS Update utility allows you to update the motherboard BIOS in a
Windows® environment. This utility requires an Internet connection either through
a network or an Internet Service Provider (ISP).

ASUS PC Probe II

This smart utility monitors the fan speed, CPU temperature, and system voltages,
and alerts you of any detected problems. This utility helps you keep your computer
in healthy operating condition.

ASUS P5KPL 3-5

3.2.4 ASUS Contact information

Click the Contact tab to display the ASUS contact information. You can also nd

this information on the inside front cover of this user guide.

3-6 Chapter 3: Software support

A

CPU features

The Appendix describes the CPU
features and technologies that the
motherboard supports.

A-2 Appendix: CPU features

A.1 Intel® EM64T

• The motherboard is fully compatible with Intel® LGA775 processors running
on 32-bit operating systems.

• The motherboard comes with a BIOS le that supports EM64T.
You can download the latest BIOS le from the ASUS website
(www.asus.com/support/download/) if you need to update the BIOS le.

See Chapter 2 for details.

• Visit www.intel.com for more information on the EM64T feature.

• Visit www.microsoft.com for more information on Windows

®

64-bit OS.

Using the Intel® EM64T feature

To use the Intel® EM64T feature:

1. Install an Intel

®

CPU that supports the Intel® EM64T.

2. Install a 64-bit operating system (Windows

®

XP Professional x64 Edition or

Windows® Server 2003 x64 Edition).

3. Install the 64-bit drivers for the motherboard components and devices from
the support CD.

4. Install the 64-bit drivers for expansion cards or add-on devices, if any.

A.2 Enhanced Intel SpeedStep®

Technology (EIST)

• The motherboard comes with a BIOS le that supports EIST.
You can download the latest BIOS le from the ASUS website

(www.asus.com/support/download/) if you need to update the BIOS. See
Chapter 2 for details.

• Visit www.intel.com for more information on the EIST feature.

A.2.1 System requirements

Before using EIST, check your system if it meets the following requirements:

• Intel

®

Pentium® 4 processor with EIST support

• BIOS le with EIST support

• Operating system with EIST support (Windows

®

XP SP2/Windows® Server

2003 SP1/Linux 2.6 kernel or later versions)

Refer to the expansion card or add-on device(s) documentation, or visit the
related website, to verify if the card/device supports a 64-bit system.

ASUS P5KPL A-3

A.2.2 Using the EIST

To use the EIST feature:

1. Turn on the computer, then enter the BIOS Setup.

2. Go to the Advanced Menu, highlight CPU Conguration,

then press <Enter>.

3. Set the

Intel(R) SpeedStep Technology item to [Automatic],

then press <Enter>.

4. Press <F10> to save your changes and exit the BIOS setup.

5. After the computer restarts, right click on a blank space on the desktop, then
select Properties from the pop-up menu.

6. When the Display Properties window
appears, click the Screen Saver tab.

7. Click the Power button on the
Monitor power section to open the
Power Options Properties window.

8. On the Power schemes section, click

, then select any option except

Home/Ofce Desktop or Always

On.

9. Click Apply, then click OK.

10. Close the Display Properties window.
After you adjust the power scheme,
the CPU internal frequency slightly
decreases when the CPU loading is
low.

The screen displays and procedures may vary depending on the operating
system.

A-4 Appendix: CPU features

A.3 Intel® Hyper-Threading Technology

• The motherboard supports Intel® Pentium® 4 LGA775 processors with
Hyper-Threading Technology.

• Hyper-Threading Technology is supported under Windows

®

XP/2003 Server
and Linux 2.4.x (kernel) and later versions only. Under Linux, use the
Hyper-Threading compiler to compile the code. If you are using any other
operating systems, disable the Hyper-Threading Technology item in the
BIOS to ensure system stability and performance.

• Installing Windows

®

XP Service Pack 1 or later version is recommended.

• Make sure to enable the Hyper-Threading Technology item in BIOS before
installing a supported operating system.

• For more information on Hyper-Threading Technology, visit
www.intel.com/info/hyperthreading.

Using the Hyper-Threading Technology

To use the Hyper-Threading Technology:

1. Install an Intel

®

Pentium® 4 CPU that supports Hyper-Threading Technology.

2. Power up the system and enter the BIOS Setup. Under the Advanced Menu,
make sure that the item Hyper-Threading Technology is set to Enabled.

The BIOS item appears only if you installed a CPU that supports

Hyper-Threading Technology.

3. Restart the computer.