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, modied or altered, unless
such repair, modication 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 identication or explanation and to the
owners’ benet, without intent to infringe.
ii
Contents
Notices ......................................................................................................... vi
Safety information ..................................................................................... vii
About this guide ....................................................................................... viii
P5KPL-AM/PS specications summary ..................................................... x
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
•
This device may not cause harmful interference, and
•
This device must accept any interference received including interference that
may cause undesired operation.
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with manufacturer’s
instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following
measures:
•
Reorient or relocate the receiving antenna.
•
Increase the separation between the equipment and receiver.
•
Connect the equipment to an outlet on a circuit different from that to which the
receiver is connected.
•
Consult the dealer or an experienced radio/TV technician for help.
The use of shielded cables for connection of the monitor to the graphics card is
required to assure compliance with FCC regulations. Changes or modications
to this unit not expressly approved by the party responsible for compliance
could void the user’s authority to operate this equipment.
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise emissions
from digital apparatus set out in the Radio Interference Regulations of the
Canadian Department of Communications.
This class B digital apparatus complies with Canadian ICES-003.
vi
Safety information
Electrical safety
•
To prevent electrical shock hazard, disconnect the power cable from the
electrical outlet before relocating the system.
•
When adding or removing devices to or from the system, ensure that the
power cables for the devices are unplugged before the signal cables are
connected. If possible, disconnect all power cables from the existing system
before you add a device.
•
Before connecting or removing signal cables from the motherboard, ensure
that all power cables are unplugged.
•
Seek professional assistance before using an adpater or extension cord.
These devices could interrupt the grounding circuit.
•
Make sure that your power supply is set to the correct voltage in your area.
If you are not sure about the voltage of the electrical outlet you are using,
contact your local power company.
•
If the power supply is broken, do not try to x it by yourself. Contact a
qualied 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 qualied
service technician or your retailer.
This symbol of the crossed out wheeled bin indicates that the product (electrical
and electronic equipment, Mercury-containing button cell battery) should not
be placed in municipal waste. Check local regulations for disposal of electronic
products.
vii
About this guide
This user guide contains the information you need when installing and conguring
the motherboard.
How this guide is organized
This manual contains the following parts:
• Chapter 1: Product introduction
This chapter describes the features of the motherboard and the new
technology it supports. It also lists the hardware setup procedures that you
have to perform when installing system components. It includes description of
the jumpers and connectors on the motherboard.
• Chapter 2: BIOS setup
This chapter tells how to change system settings through the BIOS Setup
menus. Detailed descriptions of the BIOS parameters are also provided.
• Chapter 3: Software support
This chapter describes the contents of the support DVD that comes with the
motherboard package.
• 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.
viii
Conventions used in this guide
To make sure that you perform certain tasks properly, take note of the following
symbols used throughout this manual.
DANGER/WARNING: Information to prevent injury to yourself
when trying to complete a task.
CAUTION: Information to prevent damage to the components
when trying to complete a task.
IMPORTANT: Instructions that you MUST follow to complete a
task.
NOTE: Tips and additional information to help you complete a
task.
Typography
Bold text Indicates a menu or an item to select.
Italics
Used to emphasize a word or a phrase.
<Key> Keys enclosed in the less-than and greater-than sign
means that you must press the enclosed key.
Example: <Enter> means that you must press the
Enter or Return key.
<Key1>+<Key2>+<Key3> If you must press two or more keys simultaneously, the
key names are linked with a plus sign (+).
Example: <Ctrl>+<Alt>+<D>
CommandMeans 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 /iP5KPLAMP.ROM
ix
P5KPL-AM/PS specications summary
CPU LGA775 socket for Intel® Core™2 Extreme/ Core™2
ChipsetNorthbridge: Intel® G31
Front Side Bus1600 (O.C.) / 1333 / 1066 / 800 MHz
Memory2 x DIMM, max. 4GB, DDR2 1066 (O.C.) / 800 / 667 MHz,
Expansion Slots1 x PCI Express x16 slot
VGAIntel Graphics Media Accelerator (Intel® GMA 3100)
StorageSouthbridge Intel® ICH7 supports:
LANRTL8111C Gb LAN
AudioRealek ALC662 6-Channel High-Denition Audio CODEC
USBMax. 8 x USB 2.0 ports (4 ports at mid-board, 4 ports
Rear panel1 x PS/2 keyboard port
Quad / Core™2 Duo / Pentium® D / Pentium® 4 /
Celeron® D / Celeron® Processors
Compatible with Intel® 05B/05A/06 processors
Intel® Hyper-Threading Technology ready
(Refer to www.asus.com for Intel CPU support list)
Southbridge: Intel® ICH7
non-ECC, un-buffered memory
Dual channel memory architecture
* When you installing total memory of 4GB capacity
or more, Windows 32-bit operation system may only
recognize less than 3GB. Hence, a total installed
memory of less than 3GB is recommended.
(Refer to www.asus.com or user manual for Memory Quality
Vendor List
1 x PCI Express x1 slot
2 x PCI slots
integrated
Maximum resolution: 2048 x 1536 x 32 bpp (@75Hz)
Horizontal: 127.5KHz, Vertical: 85Hz
- 1 x UltraDMA 100 / 66 / 33 hard disk drive
- 4 x Serial ATA 3GB/s ports
Anti-Pop Function
Multi-Streaming
Supports S/PDIF Out connector
at back panel)
1 x PS/2 Mouse port
1 x Parallel port
1 x VGA port
1 x COM
1 x LAN (RJ-45) port
4 x USB 2.0 ports
6-channel audio I/O port
)
(continued on the next page)
x
P5KPL-AM/PS specications summary
Internal I/O connectors2 x USB connectors support additional 4 USB ports
ASUS FeaturesASUS CrashFree BIOS 3
BIOS8Mb Flash ROM, AMI BIOS, PnP, DMI2.0, WfM2.0,
ManageabilityWOL, PXE, RPL, WOR by Ring, PME Wake Up
Support DVD contentsDrivers
Accessories1 x Serial ATA cable
Form factoruATX form factor: 9.6 in x 8.35 in (24.5 cm x 21.2 cm)
1 x IDE connector
4 x SATA connectors
1 x CPU fan connector
1 x High Denition front panel audio connector
1 x System panel connector
1 x S/PDIF Out connector
1 x CD audio in connector
1 x 24-pin EPS 12V power connector
1 x 4-pin ATX 12V power connector
1 x COM connector
1 x internal speaker connector
ASUS Q-Fan
ASUS EZ Flash 2
ASUS MyLogo 2
Power Sabilizer
ACPI 2.0, SM BIOS 2.5
ASUS PC Probe II
ASUS LiveUpdate utility
Anti-virus software
Bundled Software
1 x Serial ATA power cable
1 x UltraDMA 100/66/33 cable
I/O shield
User manual
*Specications are subject to change without notice.
xi
xii
This chapter describes the motherboard
features and the new technologies
it supports.
Product
1
introduction
1.1 Welcome!
T ha n k y o u f o r b u y i n g a n A SU S® P 5 K P L - A M / P S m o t h e r b o a r d !
The motherboard delivers a host of new features and latest technologies, making it
another standout in the long line of ASUS quality motherboards!
Before you start installing the motherboard, and hardware devices on it, check the
items in your package with the list below.
1.2 Package contents
Check your motherboard package for the following items.
Motherboard ASUS P5KPL-AM/PS
Cables 1 x Ultra DMA 100/66/33 cable
1 x SATA cable
1 x SATA power cable
Accessories I/O shield
Application CD ASUS motherboard support DVD
Documentation User guide
If any of the above items is damaged or missing, contact your retailer.
1.3 Special features
1.3.1 Product highlights
LGA775 Intel® Quad-core Processor Ready
This motherboard supports the latest Intel® Quad-core processors in LGA775
package. It also can support Intel® next generation 45nm Multi-Core CPU.
It´s excellent for multi-tasking, multi-media and enthusiastic gamers with
1600(OC)/1333 / 1066/800 MHz FSB. Intel® Quad-core is one of the most powerful
CPU in the world.
1-2Chapter 1: Product introduction
Intel® Core™2 Processor Ready
This motherboard supports the latest Intel® Core™2 processors in LGA775 package.
With new Intel® Core™ microarchitecture technology and 1600(OC) MHz FSB, Intel®
Core™2 processor is one of the most powerful and energy efcient CPU in the world.
Intel® G31 chipset
The Intel® G31 Express Chipset boosts your gaming and multimedia experience with
the integrated graphics engine Intel® Graphics Media Accelerator 3100. It supports
1333MHz FSB (front-side-bus), and delivers breakthrough advances in 3D and 2D
graphics; and video capabilities. This integrated chipset is able to meet the changing
display requirements of visually rich applications and features the Intel® Clear Video
Technology - which trailblazes new standards in high-denition video, crisp imaging,
and accurate color control.
Dual-Channel DDR2 1066 (OC)
Dual-channel DDR2 technology doubles the bandwidth of your system memory and
hence boost the system performance to out perform any memory existing solutions in
the market. .
Serial ATA 3 Gb/s technology
Serial ATA3.0Gb/s is the next generation ATA specication that provides scalable
performance foroday and tomorrow. With up to 300MB/s data transfer rate,
Serial ATA II is faster than current Parallel ATA, while providing 100% software
compatibility.
PCI Express Architecture
PCI Express is the latest I/O interconnect technology that will replace the existing
PCI. With a bus bandwidth 4 times higher than that of AGP 8X interface, PCI
Express x16 bus performs much better than AGP 8X in applications such as 3D
gaming. PCI Express x1 and x4 also outperforms PCI interface with its exceptional
high bandwidth. The high speed PCI Express interface creates new usages on
desktop PCs e.g., Gigabit LAN, 1394b, and high-speed RAID systems.
Gigabit LAN solution
PCI Express Gb LAN controller delivers transfer speeds up to ten times faster than
conventional 10/100/1000 Ethernet connections. Gigabit LAN is the networking
standard for the early future and is ideal for handling large amounts of data such as
video, audio, and voice.
ASUS P5KPL-AM/PS1-3
FSB 1600 support (O.C.)
ASUS’s exclusive overclocking design now unleashes the ultimate potential of the
Intel® Core™2 processor. With the new Intel 45nm micro-architecture technology
and FSB 1600 (O.C.) / 1333 / 1066 / 800 MHz, this motherboard allows you to
enjoy the latest technology supported by one of the most powerful and energy
efcient CPUs in the world.
6 Channel High Denition Audio
Enjoy high-end sound system on your PC! The onboard 6-channel HD audio (High
streaming technology that simultaneously sends different audio streams to different
destinations. You can now talk to your partners on the headphone while playing a
multi-channel network games. All of these are done on one computer.
1.3.2 ASUS Special features
ASUS Q-Fan technology
ASUS Q-Fan technology intelligently and automatically adjusts CPU fan speeds
according to system load and temperature, enabling users to work in a distractionfree environment with minimal noise.
ASUS MyLogo2™
Personalize your system with customizable boot logo
You can convert your favorite photo into a 256-color boot logo for a more colorful
and vivid image on your screen.
ASUS EZ Flash 2
Simply update BIOS from a USB ash disk before entering the OS
EZ Flash 2 is a user-friendly BIOS update utility. Simply launch this tool and update
BIOS from a USB ash disk before entering the OS. You can update your BIOS
only in a few clicks without preparing an additional oppy diskette or using an OSbased ash utility.
1-4Chapter 1: Product introduction
ASUS CrashFree BIOS 3
Simply restore corrupted BIOS data from USB ash disk
The ASUS CrashFree BIOS 3 allows users to restore corrupted BIOS data from a
USB ash disk containing the BIOS le. This utility saves users the cost and hassle
of buying a replacement BIOS chip.
Power Stabilizer
Power Stabilizer is specially designed for switching power supply system, which
is a secondary monitoring IC for voltage detecting. It can provide a reliable power
supply environment for you and protect the motherboard when power supply is in
short circuit or over voltage.
Green ASUS
The 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 and
packaging to safeguard consumers’ health while minimizing the impact on the
environment.
ASUS P5KPL-AM/PS1-5
1.4 Before you proceed
P5KPL-AM/PS
P5KPL-AM/PS
SB_PWR
ON
Standy Power Powered Off
OFF
P5KPL-AM/PS Onboard LED
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.
1-6Chapter 1: Product introduction
P5KPL-AM/PS
1.5 Motherboard overview
Before you install the motherboard, study the conguration of your chassis to
ensure that the motherboard ts into it.
Make sure to unplug the power cord before installing or removing the
motherboard. Failure to do so can cause you physical injury and damage
motherboard components.
1.5.1 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.
Do not overtighten the screws! Doing so can damage the motherboard.
Place this side towards
the rear of the chassis
ASUS P5KPL-AM/PS1-7
1.5.3 Motherboard layout
P5KPL-AM/PS
PCIEX16
PCIEX1_1
PCI2
PCI1
PRI_IDE
FLOPPY
USB78USB56
SPDIF_OUT
AAFP
RTM870T-954
CD
ATX12V
EATXPWR
CPU_FAN
Intel
®
G31
Lithium Cell
CMOS Power
Super
I/O
ALC662
RTL
8111C
8Mb
BIOS
SB_PWR
21.2cm(8.35in)
24.4cm(9.6in)
LGA775
Intel
®
ICH7
DDR2 DIMM_A1 (64bit, 240-pin module)
DDR2 DIMM_B1 (64bit, 240-pin module)
VGA
SATA1 SATA3 SATA2 SATA4
CLRTC
CHASSIS
AUDIO
KBMS
LPT
COM1
LAN1_USB12
USB34
COM2
F_PANEL
Refe r to sec tion 1 .10 Connect ors for m ore informa tion a bout r ear panel
1-8Chapter 1: Product introduction
connectors and internal connectors.
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® D / Pentium® 4
and Celeron
®
D / Celeron® processors.
•
Make sure the AC power is off before you install the CPU.
• If installing a dual-core CPU, connect the chassis fan cable to the chassis
fan connector to ensure system stability.
•
Upon purchase of the motherboard, make sure that the PnP cap is on
the socket and the socket contacts are not bent. Contact your retailer
immediately if the PnP cap is missing, or if you see any damage to the PnP
cap/socket contacts/motherboard components. ASUS will shoulder the cost
of repair only if the damage is shipment/transit-related.
•
Keep the cap after installing the motherboard. ASUS will process Return
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.
ASUS P5KPL-AM/PS1-9
1.6.1 Installing the CPU
P5KPL-AM/PS
P5KPL-AM/PS CPU socket 775
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.
2. Press the load lever with your thumb (A) and move it to the left (B) until it is
released from the retention tab.
Retention tab
PnP Cap
A
Load lever
B
This side of the cam box
should face you.
To prevent damage to the socket pins, do not remove the PnP cap unless you
are installing a CPU.
3. Lift the load lever in the direction of
the arrow to a 135º angle.
1-10Chapter 1: Product introduction
4. Lift the load plate with your thumb
and forenger to a 100º angle (A),
then push the PnP cap from the load
plate window to remove (B).
5. Position the CPU over
the socket, making sure
that the gold triangle is
on the bottom-left corner
of the socket. The socket
alignment key should t
into the CPU notch.
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!
Alignment key
Gold triangle mark
B
A
Load plate
6. Close the load plate (A), then push
A
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
B
fan connector to ensure system
stability.
The motherboard supports Intel® LGA775 processors with Hyper-Threading
Technology. Refer to the Appendix for more information on these CPU features.
ASUS P5KPL-AM/PS1-11
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.
•
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®-certied multi-directional heatsink and fan.
•
Your Intel® LGA775 heatsink and fan assembly comes in a push-pin design
and requires no tool to install.
•
If you purchased a separate CPU heatsink and fan assembly, make sure
that you have properly applied Thermal Interface Material to the CPU
heatsink or CPU before you install the heatsink and fan assembly.
Make sure that you have installed the motherboard to the chassis before you
install the CPU fan and heatsink assembly.
To install the CPU heatsink and fan:
1. Place the heatsink on top of the
installed CPU, making sure that the
four fasteners match the holes on
the motherboard.
Orient the heatsink and fan
assembly such that the CPU
fan cable is closest to the CPU
fan connector.
Motherboard hole
Fastener
Make sure to orient each fastener with the narrow end of the groove pointing
outward. (The photo shows the groove shaded for emphasis.)
1-12Chapter 1: Product introduction
CPU_FAN
CPU FAN PWM
CPU FAN IN
CPU FAN PWR
GND
P5KPL-AM/PS
P5KPL-AM/PS CPU fan connector
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
A
B
3. Connect the CPU fan cable to the connector on the motherboard labeled
CPU_FAN.
Do not forget to connect the CPU fan connector! Hardware monitoring errors
can occur if you fail to plug this connector.
ASUS P5KPL-AM/PS1-13
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.
A
B
A
A
B
B
A
B
4. Carefully remove the heatsink
and fan assembly from the
motherboard.
1-14Chapter 1: Product introduction
5. Rotate each fastener clockwise to
ensure correct orientation when
reinstalling.
The narrow end of the
groove should point outward
after resetting. (The photo
shows the groove shaded for
emphasis.)
Narrow end of the groove
Refer to the documentation in the boxed or stand-alone CPU fan package for
detailed information on CPU fan installation.
ASUS P5KPL-AM/PS1-15
1.7 System memory
P5KPL-AM/PS
P5KPL-AM/PS 240-pin DDR2 DIMM sockets
DIMM_A1
DIMM_B1
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:
ChannelSockets
Channel ADIMM_A
Channel BDIMM_B
Install a memory module in DIMM_A slot to support the Intel® Quiet System
Technology and for optimum performance.
1-16Chapter 1: Product introduction
1.7.2 Memory congurations
You may install 256 MB, 512 MB, 1 GB and 2 GB unbuffered non-ECC DDR2
DIMMs into the DIMM sockets.
• You may install varying memory sizes in Channel A and Channel B. The
system maps the total size of the lower-sized channel for the dual-channel
conguration. Any excess memory from the higher-sized channel is then
mapped for single-channel operation.
• Always install DIMMs with the same CAS latency. For optimum compatibility,
it is recommended that you obtain memory modules from the same vendor.
• When you installing total memory of 4GB capacity or more, Windows 32-bit
operation system may only recognize less than 3GB. Hence, a total installed
memory of less than 3GB is recommended.
• This motherboard does not support memory modules made up of 128 Mb
chips or double sided x16 memory modules.
Notes on memory limitations
• Due to chipset limitation, this motherboard can only support up to
4 GB on the operating systems listed below. You may install a maximum
of 2 GB DIMMs on each slot, but only DDR2-800 and DDR2-667 2 GB
density modules are available for this conguration.
Windows® XPWindows® XP x 64 Edition
Windows® VistaWindows® Vista x 64 Edition
• Some old-version DDR2-800 DIMMs may not match Intel®
On-Die-Termination (ODT) requirement and will automatically downgrade
to run at DDR-667. If this heppens, contact your memory vendor to check
to ODT value.
32-bit64-bit
ASUS P5KPL-AM/PS1-17
1.7.3 DDR2 Qualied Vendors List
The following table lists the memory modules that have been tested and qualied
for use with this motherboard. Visit the ASUS website (www.asus.com) for the
latest DDR2 DIMM modules for this motherboard.