Asus P5QL-I SI User manual

Motherboard
P5QL-I/SI

ii
E4649
First Edition V1
May 2009
Copyright © 2009 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.......................................................................................................... v
Safety information ...................................................................................... vi
About this guide ......................................................................................... vi
P5QL-I/SI specications summary.......................................................... viii
Chapter 1: Product introduction
1.1 Before you proceed ..................................................................... 1-1
1.2 Motherboard overview................................................................. 1-2
1.2.1 Motherboard layout ......................................................... 1-2
1.2.2 Layout contents............................................................... 1-3
1.3 Central Processing Unit (CPU) ................................................... 1-3
1.4 System memory ........................................................................... 1-4
1.4.1 Overview ......................................................................... 1-4
1.4.2 Memory congurations.................................................... 1-4
1.5 Expansion slots............................................................................ 1-8
1.5.1 Installing an expansion card ........................................... 1-8
1.5.2 Conguring an expansion card ....................................... 1-8
1.5.3 PCI slots.......................................................................... 1-8
1.5.4 PCI Express x16 slot....................................................... 1-8
1.6 Jumpers ........................................................................................ 1-9
1.7 Connectors ................................................................................. 1-11
1.7.1 Rear panel connectors...................................................1-11
1.7.2 Internal connectors ....................................................... 1-12
1.8 Software support........................................................................ 1-16
1.8.1 Installing an operating system ...................................... 1-16
1.8.2 Support CD information ................................................ 1-16
Chapter 2: BIOS information
2.1 Managing and updating your BIOS ............................................ 2-1
2.1.1 ASUS Update utility ........................................................ 2-1
2.1.2 ASUS EZ Flash 2 utility................................................... 2-2
2.1.3 ASUS CrashFree BIOS 3 utility ...................................... 2-3
2.2 BIOS setup program .................................................................... 2-4
2.3 Main menu .................................................................................... 2-5
2.3.1 System Time ................................................................... 2-5
2.3.2 System Date ................................................................... 2-5

iv
Contents
2.3.3 SATA1~4 ......................................................................... 2-5
2.3.4 Storage Conguration ..................................................... 2-6
2.3.5 System Information ......................................................... 2-6
2.4 Advanced menu ........................................................................... 2-7
2.4.1 CPU Conguration .......................................................... 2-7
2.4.2 Chipset............................................................................ 2-8
2.4.3 Onboard Devices Conguration...................................... 2-8
2.4.4 USB Conguration .......................................................... 2-9
2.4.5 PCI PnP ........................................................................ 2-10
2.5 Power menu................................................................................ 2-10
2.5.1 Suspend Mode.............................................................. 2-10
2.5.2 ACPI 2.0 Support .......................................................... 2-10
2.5.3 ACPI APIC Support........................................................2-11
2.5.4 APM Conguration.........................................................2-11
2.5.5 Hardware Monitor ..........................................................2-11
2.6 Boot menu .................................................................................. 2-12
2.6.1 Boot Device Priority ...................................................... 2-12
2.6.2 Boot Settings Conguration .......................................... 2-12
2.6.3 Security ......................................................................... 2-13
2.7 Tools menu ................................................................................. 2-14
2.7.1 ASUS EZ Flash 2.......................................................... 2-14
2.7.2 AI NET 2........................................................................ 2-14
2.8 Exit menu.................................................................................... 2-15

v
Notices
Federal Communications Commission Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
• This device may not cause harmful interference, and
• This device must accept any interference received including interference that may cause
undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with 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.
REACH
Complying with the REACH (Registration, Evaluation, Authorisation, and Restriction of
Chemicals) regulatory framework, we published the chemical substances in our products at
ASUS REACH website at http://green.asus.com/english/REACH.htm.
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.
DO NOT throw the motherboard in municipal waste. This product has been designed to
enable proper reuse of parts and recycling. This symbol of the crossed out wheeled bin
indicates that the product (electrical and electronic equipment) should not be placed in
municipal waste. Check local regulations for disposal of electronic products.
DO NOT throw the mercury-containing button cell battery in municipal waste. This symbol
of the crossed out wheeled bin indicates that the battery should not be placed in municipal
waste.

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 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.
About this guide
This user guide contains the information you need when installing and conguring the
motherboard.
How this guide is organized
This guide contains the following parts:
• Chapter 1: Product introduction
This chapter describes the features of the motherboard and the new technology it
supports.
• Chapter 2: BIOS information
This chapter tells how to change system settings through the BIOS Setup menus.
Detailed descriptions of the BIOS parameters are also provided.

vii
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.
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.
NOTE: Tips and additional information to help you complete a task.
IMPORTANT: Instructions that you MUST follow to 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>

viii
P5QL-I/SI specications summary
(continued on the next page)
CPU LGA775 Socket for Intel®Core™2 Extreme /
Core™2 Quad / Core™2 Duo / Pentium®Dual-Core /
Celeron®Dual-Core / Celeron®processors
Supports Intel®45nm multi-core CPU
* Refer to www.asus.com for Intel®CPU support list.
Chipset Intel®P43 / ICH10 with Intel®Fast Memory Access
Technology
System bus 1333/1066/800 MHz
Memory Dual channel memory architecture
- 2 x 240-pin DIMM sockets support unbuffered
non-ECC DDR2 800/667MHz memory modules
- Supports up to 8GB system memory
* Refer to www.asus.com or this user manual for the
Memory QVL (Qualied Vendors Lists)
** When you install a total memory of 4GB capacity
or more, Windows®32-bit operating system may only
recognize less than 3GB. We recommend a maximum
of 3GB system memory if you are using a Windows®
32-bit operating system.
Expansion slots 1 x PCIe x16 slot
3 x PCI slots
Storage Intel®ICH10 southbridge supports:
- 4 x Serial ATA 3.0Gb/s connectors
LAN Realtek®RTL8112, PCIe Gigabit LAN controller
Audio VIA VT1705, 6-channel High-Denition Audio CODEC
- Supports Jack-detect and Multi-streaming
technologies
- ASUS Noise Filter
USB 8 x USB 2.0/1.1 ports (2 ports at mid-board, 6 ports at
back panel)
ASUS special features ASUS Q-FAN
ASUS MyLogo 2
ASUS AI NET 2
ASUS CrashFree BIOS 3
ASUS EZ Flash 2
ASUS EPU Lite

ix
P5QL-I/SI specications summary
*Specications are subject to change without notice.
Back panel I/O ports 1 x PS/2 keyboard port
1 x PS/2 mouse port
1 x COM port
1 x LAN (RJ-45) port
6 x USB 2.0/1.1 ports
6-channel audio I/O ports
Internal I/O connectors 1 x USB 2.0/1.1 connector supports 2 additional
USB 2.0/1.1 ports
4 x Serial ATA connectors
1 x CPU fan connector
1 x Chassis fan connector
1 x Front panel audio connector
1 x 24-pin EATX power connector
1 x 4-pin ATX 12V power connector
1 x System panel connector
BIOS features 8Mb Flash ROM, AMI BIOS, PnP, DMI 2.0, WfM 2.0,
SM BIOS 2.5, ACPI 2.0a
Manageability WfM 2.0, DMI 2.0, WOL by PME, WOR by PME, PXE
Support CD Contents Drivers
ASUS PC Probe II
ASUS Update
Anti-virus software (OEM version)
Accessories 1 x Serial ATA cable
1 x I/O shield
Support CD
User manual
Form factor ATX form factor: 12.0 in x 7.1 in (30.5 cm x 18.0 cm)

ASUS P5QL-I/SI 1-1
Chapter 1
Product introduction
If any of the items is damaged or missing, contact your retailer.
Thank you for buying an ASUS®P5QL-I/SI motherboard!
Before you start installing the motherboard, and hardware devices on it, check the items in
your motherboard package. Refer to page ix for the list of accessories.
1.1 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.
• Before handling components, use a grounded wrist strap or touch a safely grounded
object or a metal object, such as the power supply case, 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, 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 must 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.

1-2 Chapter 1: Product introduction
1.2 Motherboard overview
1.2.1 Motherboard layout
Place six 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.
Ensure that you install the motherboard into the chassis in the correct orientation. The edge
with external ports goes to the rear part of the chassis.
Place this side towards
the rear of the chassis.

ASUS P5QL-I/SI 1-3
1.3 Central Processing Unit (CPU)
The motherboard comes with a surface mount LGA775 socket designed for the Intel®
Core™2 Extreme / Core™2 Quad / Core™2 Duo / Pentium®Dual-Core / Celeron®Dual-Core
/ Celeron®processors.
• Upon purchase of the motherboard, ensure 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.
The motherboard supports Intel®LGA775 processors with the Intel®Enhanced Intel
SpeedStep®Technology (EIST) and Hyper-Threading Technology.
1.2.2 Layout contents
Connectors/Jumpers/Slots/LED Page Connectors/Jumpers/Slots/LED Page
1. Keyboard power (3-pin KBPWR) 1-10 8. Onboard LED (SB_PWR) 1-1
2. ATX power connectors (24-pin EATXPWR, 4-pin
ATX12V)
1-12 9. Clear RTC RAM (3-pin CLRTC) 1-9
3. CPU and chassis fan connectors (4-pin
CPU_FAN, 3-pin CHA_FAN1)
1-13 10. System panel connector (10-1 pin
F_PANEL)
1-15
4. USB device wake-up (3-pin USBPW1-6, 3-pin
USBPW7-8)
1-10 11. USB connector (10-1 pin USB78) 1-14
5. LGA775 CPU socket 1-3 12. Front panel audio connector (10-1 pin
AAFP)
1-13
6. DDR2 DIMM slots 1-4 13. PCI / PCIe x 16 slots 1-8
7. Serial ATA connectors (7-pin SATA1-4) 1-14

1-4 Chapter 1: Product introduction
1.4.2 Memory congurations
You may install 512MB, 1GB, 2GB and 4GB 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 conguration. 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.
• Due to the memory address limitation on 32-bit Windows®OS, when you install 4GB
or more memory on the motherboard, the actual usable memory for the OS can be
about 3GB or less. For effective use of memory, we recommend that you do any of the
following:
- Use a maximum of 3GB system memory if you are using a 32-bit Windows®OS.
- Install a 64-bit Windows®OS when you want to install 4GB or more memory on
the motherboard.
• This motherboard does not support DIMMs made up of 256 megabits (Mb) chips or less.
This motherboard supports up to 8GB on Windows®XP Professional x64 and Windows®
Vista x64 editions. You may install a maximum of 4GB DIMMs on each slot.
1.4 System memory
1.4.1 Overview
The motherboard comes with two Double Data Rate 2 (DDR2) Dual Inline Memory Modules
(DIMM) sockets. The gure illustrates the location of the DDR2 DIMM sockets:
Channel Sockets
Channel A DIMM_A1
Channel B DIMM_B1

ASUS P5QL-I/SI 1-5
P5QL-I/SI Motherboard Qualied Vendors Lists (QVL)
DDR2-667 MHz capability
Size Vendor Part No. SS/DS Chip Brand Chip NO.
DIMM socket
support (Optional)
A* B*
2048MB A-Data M2OAD5H3J4170I1C53 DS ADATA AD20908A8A-3EG 30724 · ·
512MB Apacer 78.91G92.9K5 SS Apacer AM4B5708JQJS7E0751C · ·
512MB Apacer AU 512E667C5KBGC SS Apacer AM4B5708GQJS7E06332F · ·
512MB Apacer AU 512E667C5KBGC SS Apacer AM4B5708MIJS7E0627B · ·
1024MB Apacer 78.01G9O.9K5 SS Apacer AM4B5808CQJS7E0751C · ·
1024MB Apacer AU01GE667C5KBGC DS Apacer AM4B5708GQJS7E0636B · ·
1024MB Apacer AU01GE667C5KBGC DS Apacer AM4B5708MIJS7E0627B · ·
2048MB Apacer AM4B5808CQJS7E0749B DS Apacer 78.A1G9O.9K4 · ·
512MB Corsair VS 512MB667D2 DS Corsair MIII0052532M8CEC · ·
1024MB Corsair VS1GB667D2 DS Corsair MID095D62864M8CEC · ·
1024MB Corsair XMS2-5400 DS Corsair Heat-Sink Package · ·
2048MB(Kit of 2) G.SKILL F2-5400PHU2-2GBNT DS G.SKILL D2 64M8CCF 0815 C7173S · ·
4096MB(Kit of 2) G.SKILL F2-5300CL5D-4GBMQ DS G.SKILL Heat-Sink Package
SN:8151030036559 · ·
1024MB GEIL GX21GB5300SX DS GEIL Heat-Sink Package · ·
2048MB GEIL GX22GB5300LX DS GEIL Heat-Sink Package · ·
2048MB GEIL GX24GB5300LDC DS GEIL Heat-Sink Package · ·
512MB Kingmax KLCC28F-A8KB5 SS Kingmax KKEA88B4LAUG-29DX · ·
512MB Kingston KVR667D2N5/ 512(low prole) SS Kingston D6408TR7CGL25U · ·
1024MB Kingston KVR667D2N5/1G(low prole) DS PSC E5108AJBG-8E-E · ·
2048MB Kingston KVR667D2N5/2G(low prole) DS Elpida E1108ACBG-8E-E · ·
1024MB Micron MT8HTF12864AY-667E1 SS Micron D9HNL 7ZE17 · ·
512MB PSC AL6E8E63J-6E1 SS PSC A3R12E3JFF717B9A00 · ·
1024MB PSC AL7E8F73C-6E1 SS PSC A3R1GE3CFF734MAA0J · ·
1024MB PSC AL6E8E63J-6E1 DS PSC A3R12E3JFF717B9A01 · ·
2048MB PSC AL8E8F73C-6E1 DS PSC A3R1GE3CFF733MAA00 · ·
4096MB Samsung M378T5263AZ3-CE6 DS Samsung K4T2G084QA-HCE6 · ·
1024MB Super Talent T667UB1GV DS Super Talent PG 64M8-800 0750 · ·
1024MB Transcend JM667QLU-1G SS Transced TQ243PCF8T0838 · ·
1024MB Transcend JM667QLJ-1G DS Elpida E5108AJBG-6E-E · ·
2048MB Transcend JM667QLU-2G DS Transced TQ243PCF8T0834 · ·
512MB Twinmos 8D-A3JK5MPETP SS PSC A3R12E3GEF633ACAOY · ·
2048MB AENEON AET860UD00-30DB08X DS AENEON AET03F30DB 0730 · ·
512MB Asint SLX264M8-J6E SS Asint DDRII6408-6E · ·
1024MB ASINT SLY2128M8-J6E SS ASINT DDRII1208-6E 8115 · ·
512MB Century CENTURY 512MB SS Hynix HY5PS12821AFP-Y5 · ·
512MB Century CENTURY 512MB SS Nanya NT5TU64M8AE-3C · ·
1024MB ELIXIR M2Y1G64TU8HA2B-3C DS elixir M2TU 51280AE-3C717095R28F · ·
1024MB Elixir M2Y1G64TU8HBOB-3C DS Elixir N2TU 51280BE-3C639009W1CF · ·
512MB KINGBOX 512MB 667MHz SS KINGBOX EPD264082200-4 · ·
1024MB KINGBOX DDRII 1G 667MHz DS KINGBOX EPD264082200-4 · ·
1024MB Leadmax LRMP 512U64A8-Y5 DS Hynix HY5PS12821CFP-Y5 C 702AA · ·
512MB TAKEMS TMS51B264C081-665AP SS takeMS MS18T 51280-3S0627D · ·
512MB TAKEMS TMS51B264C081-665QI SS takeMS MS18T 51280-3 · ·
1024MB TAKEMS TMS1GB264C081-665AE DS takeMS MS18T 51280-3SEA07100 · ·
1024MB TAKEMS TMS1GB264C081-665AP DS takeMS MS18T 51280-3SP0717A · ·
1024MB TAKEMS TMS1GB264C081-665QI DS takeMS MS18T 51280-3 · ·
1024MB UMAX D46701GP3-63BJU DS UMAX U2S12D30YP-6E · ·
2048MB UMAX D46702GP0-73BCU DS UMAX U2S24D30TP-6E · ·

1-6 Chapter 1: Product introduction
DDR2-800 MHz capability
Size Vendor Part No. SS/DS Chip Brand Chip NO.
DIMM socket
support (Optional)
A* B*
2048MB(Kit of 2) A-Data AD2800E001G0U SS N/A Heat-Sink Package · ·
1024MB A-Data M2GVD6G314170Q1E58 DS VDATA VD29608A8A-25EG80813 · ·
2048MB A-Data AD2800002GMU DS Hynix Heat-Sink Package · ·
4096MB(Kit of 2) A-Data AD2800E002GOU DS N/A Heat-Sink Package · ·
512MB Apacer 78.91G91.9K5 SS Apacer AM4B5708JQJS8E0751C · ·
1024MB Corsair CM2X1024-6400 DS Corsair Heat-Sink Package · ·
1024MB Corsair XMS2-6400 DS Corsair Heat-Sink Package · ·
1024MB Corsair XMS2-6400 DS Corsair Heat-Sink Package · ·
4096MB(Kit of 2) Corsair CM2X2048-6400C5DHX DS N/A Heat-Sink Package · ·
4096MB(Kit of 2) Corsair CM2X2048-6400C5 DS N/A Heat-Sink Package · ·
2048MB(kit of 2) Crucial BL12864AL80A.8FE5(EPP) SS N/A Heat-Sink Package · ·
4096MB(kit of 2) Crucial BL25664AL80A.16FE5(EPP) DS N/A Heat-Sink Package · ·
4096MB(kit of 2) Crucial BL25664AR80A.16FE5(EPP) DS N/A Heat-Sink Package · ·
512MB G.SKILL F2-6400CL5D-1GBNQ SS G.SKILL Heat-Sink Package
SN:8151030036642 · ·
1024MB G.SKILL F2-6400CL4D-2GBPK DS G.SKILL Heat-Sink Package · ·
1024MB G.SKILL F2-6400CL5D-2GBNQ DS G.SKILL Heat-Sink Package · ·
2048MB G.SKILL F2-6400CL4D-4GBPK DS G.SKILL Heat-Sink Package · ·
2048MB G.SKILL F2-6400CL5D-4GBPQ DS G.SKILL Heat-Sink Package · ·
4096MB G.SKILL F2-6400CL6Q-16GMQ DS N/A Heat-Sink Package · ·
1024MB GEIL GB22GB6400C4DC DS GEIL GL2L64M088BA30EB · ·
1024MB GEIL GB22GB6400C5DC DS GEIL GL2L64M088BA30EB · ·
1024MB GEIL GB24GB6400C4QC DS GEIL GL2L64M088BA30EB · ·
1024MB GEIL GB24GB6400C5QC DS GEIL GL2L64M088BA30EB · ·
1024MB GEIL GE22GB800C4DC DS GEIL Heat-Sink Package · ·
1024MB GEIL GE22GB800C5DC DS GEIL Heat-Sink Package · ·
1024MB GEIL GE24GB800C4QC DS GEIL Heat-Sink Package · ·
1024MB GEIL GE24GB800C5QC DS GEIL Heat-Sink Package · ·
1024MB GEIL GX22GB6400DC DS GEIL Heat-Sink Package · ·
1024MB GEIL GX22GB6400UDC DS GEIL Heat-Sink Package · ·
2048MB GEIL GB24GB6400C5DC DS GEIL GL2L128M88BA25AB · ·
2048MB GEIL GB28GB6400C4QC DS GEIL GL2L128M88BA25AB · ·
2048MB GEIL GB28GB6400C5QC DS GEIL GL2L128M88BA25AB · ·
2048MB GEIL GE24GB800C4DC DS GEIL Heat-Sink Package · ·
2048MB GEIL GE24GB800C5DC DS GEIL Heat-Sink Package · ·
2048MB GEIL GE28GB800C4QC DS GEIL Heat-Sink Package · ·
2048MB GEIL GE28GB800C5QC DS GEIL Heat-Sink Package · ·
2048MB GEIL GX22GB6400CUSC DS GEIL Heat-Sink Package · ·
2048MB GEIL GX22GB6400LX DS GEIL Heat-Sink Package · ·
2048MB GEIL GX24GB6400DC DS GEIL Heat-Sink Package · ·
512MB Kingmax KLDC28F-A8KI5 SS Kingmax KKA8FF1XF-JFS-25A · ·
1024MB Kingmax KKB8FFBXF-CFA-25U SS Kingmax KLDD48F-B8KB5 · ·
2048MB kingmax KLDE88F-B8KB5 DS kingmax KKB8FFBXF-CFA-25U · ·
512MB Kingston KVR800D2N6/ 512 SS Kingston KVR800D2N6/ 512 · ·
1024M(Kit of 2) Kingston KHX6400D2LLK2/1GN SS Kingston Heat-Sink Package · ·
1024MB Kingston KVR800D2N5/1G(low prole) SS Kingston D1288TEFCGL25U · ·
1024MB Kingston KVR800D2N6/1G(low prole) DS Elpida E510BAJBG-8E-E · ·
2048MB(Kit of 2) Kingston KHX6400D2K2/2G DS N/A Heat-Sink Package · ·
2048MB Kingston KVR800D2N5/2G(low prole) DS Kingston D1288TPFCGL25U · ·
2048MB Kingston KVR800D2N6/2G(low prole) DS Elpida E8105ACBG-8E-E · ·
4096MB Kingston KVR800D2N6/4G DS Elpida E2108ABSE-8G-E · ·
2048MB Micron MT16HTF25664AY-800G1 DS Micron 8AG27 D9JWB · ·
1024MB OCZ OCZ2G800R22GK DS OCZ Heat-Sink Package · ·
1024MB OCZ OCZ2P800R22GK DS OCZ Heat-Sink Package · ·
1024MB OCZ OCZ2RPR8002GK DS OCZ Heat-Sink Package · ·
1024MB OCZ OCZ2VU8004GK DS OCZ Heat-Sink Package · ·
(continued on the next page)

ASUS P5QL-I/SI 1-7
Visit the ASUS website at www.asus.com for the latest QVL.
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 both the blue slots as one pair of
dual-channel memory conguration.
Size Vendor Part No. SS/DS Chip Brand Chip NO.
DIMM socket
support (Optional)
A* B*
2048MB(Kit of 2) OCZ OCZ2SE8002GK DS N/A Heat-Sink Package · ·
2048MB OCZ OCZ2F8004GK(EPP) DS N/A Heat-Sink Package · ·
4096MB(Kit of 2) OCZ OCZ2P8004GK DS N/A Heat-Sink Package · ·
1024MB PSC AL7E8F73C-8E1 SS PSC A3R1GE3CFF734MAA0E · ·
1024MB PSC AL7E8G73F-8E1 DS PSC P3R1GE3FGF850MAC19 · ·
2048MB PSC AL8E8F73C-8E1 DS PSC A3R1GE3CFF734MAA0E · ·
2048MB PSC AL8E8G73F-8E1 DS PSC P3R1GE3FGF850MAC19 · ·
2048MB PSC PL8E8F73C-8E1 DS PSC SHG772-AA3G · ·
2048MB PSC PL8E8G73E-8E1 DS PSC XCP271A3G-A · ·
2048MB Qimonda HYS64T256020EU-2.5-C2 DS Qimonda HY818T1G800C2F-2.5 · ·
512MB Samsung K4T51083QG-HCF7 SS Qimonda M378T6553GZS-CF7 · ·
1024MB Samsung K4T1G084QQ-HCF7 SS Qimonda M378T2863QZS-CF7 · ·
1024MB Samsung M378T2863EHS-CF7 SS Samsung K4T1G084QE · ·
1024MB Samsung K4T51083QG-HCF7 DS Samsung M378T2953GZ3-CF7 · ·
1024MB Samsung M378T2953GZ3-CF7 DS Samsung K4T51083QG · ·
2048MB Samsung K4T1G084QQ-HCF7 DS Samsung M37875663QZ3-CF7 · ·
4096MB Samsung M378T5263AZ3-CF7 DS Samsung K4T2G084QA-HCF7 · ·
1024MB Super Talent T800UB1GC4 DS Super Talent Heat-Sink Package · ·
512MB Transcend TS64MLQ64V8J SS Micron 7HD22 D9GMH · ·
1024MB Transcend JM800QLU-1G SS Transced TQ1243PCF8 · ·
1024MB Transcend JM800QLJ-1G DS Transced TQ123PJF8F0801 · ·
1024MB Transcend JM800QLJ-1G DS Transcend TQ123YBF8 T0747 · ·
1024MB Transcend TS128MLQ64V8J DS Mircon 7HD22D9GMH · ·
2048MB Transcend JM800QLU-2G DS Transced TQ243PCF8 · ·
2048MB Transcend TS256MLQ64V8U DS Elpida E1108ACBG-8E-E · ·
2048MB AENEON AET860UD00-25DC08X DS AENEON AET03R25DC 0732 · ·
1024MB ASINT SLY2128M8-JGE SS ASINT DDRII1208-GE 8115 · ·
2048MB ASINT SLZ2128M8-JGE DS ASINT DDRII1208-GE 8115 · ·
1024MB Elixir M2Y1G64TU88D5B-AC 0828.GS SS Elixir N2TU16800E-AC · ·
1024MB ELIXIR M2Y1G64TU8HB0B-25C DS ELIXIR N2TU 51280BE-
25C802006Z1DV · ·
2048MB Elixir M2Y2G64TU8HD5B-AC 0826.SG DS Elixir N2TUG80DE-AC · ·
1024MB Kingtiger 1GB DIMM PC2-6400 DS Hynix HY5PS12821C FP-S5 · ·
2048MB Kingtiger 2GB DIMM PC2-6400 DS Hynix HY5PS1G831C FP-S6 · ·
2048MB Kingtiger KTG2G800PG2 DS N/A Heat-Sink Package · ·
4096MB(Kit
of 2 ) Kingtiger KTG2RX16P ST-01 DS N/A Heat-Sink Package · ·
512MB MDT MDT 512MB SS MDT 18D 51280D-2.50726F · ·
1024MB MDT MDT 1024MB DS MDT 18D 51280D-2.50726E · ·
512MB TAKEMS TMS51B264C081-805EP SS takeMS MS18T 51280-2.5P0710 · ·
1024MB TAKEMS TMS1GB264D082-805EE SS TAKEMS WS18T1G80-205 E0905 · ·
1024MB TAKEMS TMS1GB264C081-805EP DS takeMS MS18T 51280-2.5P0716 · ·
1024MB UMAX D48001GP3-63BJU DS UMAX U2S12D30TP-8E · ·
1024MB VDATA M2XSSKG3147C1L1C5Z DS Samsung K4T51083QE · ·
2048MB VDATA M2XHYKH3J47CC01E5Z DS Hynix H5PS1G83EFRS6C 852AK · ·
512MB V-Data M2GVD6G3H3160Q1E52 SS VDATA VD29608A8A-25EG20813 · ·
DDR2-800 MHz capability

1-8 Chapter 1: Product introduction
1.5 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.
Unplug the power cord before adding or removing expansion cards. Failure to do so may
cause you physical injury and damage motherboard components.
1.5.1 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.
1.5.2 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.
3. Install the software drivers for the expansion card.
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.
1.5.3 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.
1.5.4 PCI Express x16 slot
This motherboard supports a PCI Express x16 graphics card that complies with the PCI
Express specications.

ASUS P5QL-I/SI 1-9
1.6 Jumpers
1. Clear RTC RAM (3-pin 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 passwords.
Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default
position. Removing the cap will cause system boot failure!
If the steps above do not help, remove the onboard battery and move the jumper again to
clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the battery.
To erase the RTC RAM:
1. Turn OFF the computer and unplug the power cord.
2. 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.
3. Plug the power cord and turn ON the computer.
4. Hold down the <Del> key during the boot process and enter BIOS setup to re-enter
data.

1-10 Chapter 1: Product introduction
2. Keyboard power (3-pin KBPWR)
This jumper allows you to enable or disable the keyboard wake-up feature. When you
set this jumper to pins 2–3 (+5VSB), you can wake up the computer by pressing a key
on the keyboard (the default is the Space Bar)s. This feature requires an ATX power
supply that can supply at least 1A on the +5VSB lead, and a corresponding setting in
the BIOS.
3. USB device wake-up (3-pin USBPW1-6, 3-pin USBPW7-8)
Set these jumpers to +5V to wake up the computer from S1 sleep mode (CPU stopped,
DRAM refreshed, system running in low power mode) using the connected USB
devices. Set to +5VSB to wake up from S3 and S4 sleep modes (no power to CPU,
DRAM in slow refresh, power supply in reduced power mode).

ASUS P5QL-I/SI 1-11
1.7 Connectors
1.7.1 Rear panel connectors
1. PS/2 mouse port (green). This port is for a PS/2 mouse.
2. LAN (RJ-45) port. 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.
LAN port LED indications
ACT/LINK LED SPEED LED
Status Description Status Description
OFF No link OFF 10 Mbps connection
ORANGE Linked ORANGE 100 Mbps connection
BLINKING Data activity GREEN 1 Gbps connection
3. Line In port (light blue). This port connects the tape, CD, DVD player, or other audio
sources.
4. Line Out port (lime). This port connects a headphone or a speaker. In 4-channel and
6-channel congurations, the function of this port becomes Front Speaker Out.
5. Microphone port (pink). This port connects a microphone.
Refer to the audio conguration table below for the function of the audio ports in 2, 4, or
6-channel conguration.
Audio 2, 4, or 6-channel conguration
Port Headset 2-channel 4-channel 6-channel
Light Blue Line In Rear Speaker Out Rear Speaker Out
Lime Line Out Front Speaker Out Front Speaker Out
Pink Mic In Mic In Bass/Center
LAN port
SPEED
LED
ACT/LINK
LED