Asus P5QL: 1.7 System memory

1.7 System memory: Asus P5QL

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

B

A

B

A

B

A

4. Carefully remove the heatsink and fan assembly

from the motherboard.

5. Rotate each fastener clockwise to ensure

correct orientation when reinstalling.

1.7 System memory

1.7.1 Overview

The motherboard comes with four 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 and DIMM_A2

Channel B DIMM_B1 and DIMM_B2

ASUS P5QL 1-11

DIMM_B1

DIMM_B2

DIMM_A1

DIMM_A2

P5QL

P5QL 240-pin DDR2 DIMM sockets

1.7.2 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 the 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 either of the

following:

®

- Install a maximum of 3GB system memory if you are using a 32-bit Windows

OS.

®

- Use a 64-bit Windows

OS if 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 16GB on Windows

XP Professional x64 and Windows

Vista x64 editions. You may install a maximum of 4GB DIMM on each slot.

1-12 Chapter 1: Product introduction

P5QL Motherboard Qualied Vendors Lists (QVL)

DDR2-1066MHz capability

Chip

SS/

DIMM support

Size Vendor Part No. CL

Chip No.

Brand

DS

A* B* C*

512MB Kingston KHX8500D2/512 N/A Kingston SS Heat-Sink Package

512MB Kingston KVR1066D2N7/512 N/A Elpida SS E5108AJBG-1J-E

1G Kingston KHX8500D2K2/1GN N/A Kingston DS Heat-Sink Package

1G Kingston KVR1066D2N7/1G N/A Elpida DS E5108AJBG-1J-E

1G Kingston KHX8500D2/1G N/A Kingston DS Heat-Sink Package

1G Qimonda HYS64T128020EU-19F-C 6 Qimonda DS HYB18T512800CF19FFSS24313

1G Kingmax KLED48F-A8K15 N/A Kingmax DS KKA8FFIXF-JFS-18A

1G Transcend TX1066QLJ-2GK1GB 5 Transced DS Heat-Sink Package

1G GEIL GB22GB8500C5DC 5 GEIL SS GL2L128M88BA25AB

1G GEIL GB24GB8500C5QC 5 GEIL SS GL2L128M88BA25AB

1G GEIL GE22GB1066C5DC 5 GEIL DS Heat-Sink Package

2G GEIL GB24GB8500C5DC 5 GEIL DS GL2L128M88BA25AB

1G AENEON AXT760UD00-19DC97X 5 AENEON DS Heat-Sink Package

DDR2-800MHz capability

SS/

DIMM support

Size Vendor Part No. CL Chip Brand

Chip No.

DS

A* B* C*

1G Kingston KHX6400D2LL/1G N/A Kingston DS Heat-Sink Package

512MB Kingston KHX6400D2LLK2/1GN N/A Kingston SS Heat-Sink Package

V59C1512804QCF25SY0324

512MB Kingston KVR800D2N5/512 N/A Promos SS

06PECPA

512MB Kingston KVR800D2N6/512 N/A Elpida SS E5108AJBG-8E-E

1G Kingston KVR800D2N5/1G N/A Elpida DS E5108AJBG-8E-E

1G Kingston KVR800D2N6/1G N/A Elpida DS E5108AJBG-8E-E

2G Kingston KVR800D2N5/2G N/A Elpida DS E1108ACBG-8E-E

4G Kingston N/A N/A Elpida DS E2108ABSE-8G-E

512MB Samsung M378T6553GZS-CF7 6 Samsung SS K4T51083QG-HCF7

1G Samsung M378T2863QZS-CF7 6 Samsung SS K4T1G084QQ-HCF7

1G Samsung M378T2953GZ3-CF7 6 Samsung DS K4T51083QG-HCF7

2G Samsung M37875663QZ3-CF7 6 Samsung DS K4T1G084QQ-HCF7

512MB Qimonda HYS64T64000EU-2.5-B2 6 Qimonda SS HYB18T512800B2F25FSS28380

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

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

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

1G HY HYMP512U64CP8-S5 AB 5 Hynix DS HY5PS12821CFPS5

512MB Kingmax KLDC28F-A8KI5 N/A Kingmax SS KKA8FF1XF-JFS-25A

1G Kingmax KLDD48F-A8K15 N/A Kingmax DS KKA8FFIXF-HFS-25A

512MB Apacer 78.91G91.9K5 5 Apacer SS AM4B5708JQJS8E0751C

1G Apacer 78.01GA0.9K5 5 Apacer SS AM4B5808CQJS8E0749D

2G Apacer 78.A1GA0.9K4 5 Apacer DS AM4B5808CQJS8E0747D

512MB Transcend TS128MLQ64V8J512MB N/A Micron SS 7HD22 D9GMH

512MB Transcend TS64MLQ64V8J512MB N/A Transcend SS Heat-Sink Package

512MB ADATA M2OAD6G3H3160Q1E58 N/A ADATA SS AD29608A8A-25EG80812

512MB VDATA M2GVD6G3H3160Q1E52 N/A VDATA SS VD29608A8A-25EG20813

1G ADATA M2OAD6G314170Q1E58 N/A ADATA DS AD29608A8A-25EG80810

1G VDATA M2GVD6G314170Q1E58 N/A VDATA DS VD29608A8A-25EG80813

1G PSC AL7E8F73C-8E1 5 PSC SS A3R1GE3CFF734MAA0E

2G PSC AL8E8F73C-8E1 5 PSC DS A3R1GE3CFF734MAA0E

1G GEIL GB22GB6400C4DC 4 GEIL DS GL2L64M088BA30EB

1G GEIL GB24GB6400C4QC 4 GEIL DS GL2L64M088BA30EB

1G GEIL GB22GB6400C5DC 5 GEIL DS GL2L64M088BA30EB

1G GEIL GB24GB6400C5QC 5 GEIL DS GL2L64M088BA30EB

1G GEIL GX22GB6400DC 5 GEIL DS Heat-Sink Package

1G GEIL GE22GB800C4DC 4 GEIL DS Heat-Sink Package

1G GEIL GE24GB800C4QC 4 GEIL DS Heat-Sink Package

1G GEIL GX22GB6400UDC 4 GEIL DS Heat-Sink Package

1G GEIL GE22GB800C5DC 5 GEIL DS Heat-Sink Package

1G GEIL GE24GB800C5QC 5 GEIL DS Heat-Sink Package

2G GEIL GB24GB6400C4DC 4 GEIL DS GL2L128M88BA25AB

(continued on the next page)

ASUS P5QL 1-13

DDR2-800MHz capability

SS/

DIMM support

Size Vendor Part No. CL Chip Brand

Chip No.

DS

A* B* C*

2G GEIL GB24GB6400C5DC 5 GEIL DS GL2L128M88BA25AB

2G GEIL GB28GB6400C5QC 5 GEIL DS GL2L128M88BA25AB

2G GEIL GX22GB6400LX 5 GEIL DS Heat-Sink Package

2G GEIL GX24GB6400DC 5 GEIL DS Heat-Sink Package

2G GEIL GE28GB800C5QC 5 GEIL DS Heat-Sink Package

2G GEIL GE28GB800C4QC 4 GEIL DS Heat-Sink Package

2G GEIL GX22GB6400CUSC 4 GEIL DS Heat-Sink Package

2G GEIL GE24GB800C4DC 4 GEIL DS Heat-Sink Package

1G Super Talent T800UB1GC4 4 Super Talent DS Heat-Sink Package

1G G.SKILL F2-6400CL5D-2GBNQ 5 G.SKILL DS Heat-Sink Package

1G G.SKILL F2-6400CL4D-2GBPK 4 G.SKILL DS Heat-Sink Package

1G G.SKILL F2-6400CL4D-2GBHK 4 G.SKILL DS Heat-Sink Package

2G G.SKILL F2-6400CL5D-4GBPQ 5 G.SKILL DS Heat-Sink Package

2G G.SKILL F2-6400CL4D-4GBPK 4 G.SKILL DS Heat-Sink Package

1G OCZ OCZ2RPR8002GK 4 OCZ DS Heat-Sink Package

1G OCZ OCZ2G800R22GK 5 OCZ DS Heat-Sink Package

1G OCZ OCZ2P800R22GK 4 OCZ DS Heat-Sink Package

1G OCZ OCZ2VU8004GK 6 OCZ DS Heat-Sink Package

1G Elixir M2Y1G64TU8HB0B-25C 5 Elixir DS N2TU51280BE-25C802006Z1DV

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

1G AENEON AET760UD00-25DC08X 5 AENEON SS AET03R250C 0732

2G AENEON AET860UD00-25DC08X 5 AENEON DS AET03R250C 0732

512MB MDT MDT 512MB 5 MDT SS 18D51280D-2.50726F

1G Century 28V0H8 5 Hynix DS HY5PS12821CFP-S5

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

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

1G ASINT SLY2128M8-JGE N/A ASINT SS DDRII1208-GE 8115

2G ASINT SLZ2128M8-JGE N/A ASINT DS DDRII1208-GE 8115

1G UMAX D48001GP3-63BJU N/A UMAX DS U2S12D30TP-8E

DDR2-667MHz capability

SS/

DIMM support

Size Vendor Part No. CL Chip Brand

Chip No.

DS

A* B* C*

512MB Kingston KVR667D2N5/512 N/A Hynix SS HY5PS12821EFP-Y5

1G Kingston KVR667D2N5/1G N/A Hynix DS HY5PS12821EFP-Y5

2G Kingston KVR667D2N5/2G N/A Micron DS 7RE22 D9HNL

512MB Qimonda HYS64T64000EU-3S-B2 5 Qimonda SS HYB18T512B00B2F3SFSS28171

1G Qimonda HYS64T128020EU-3S-B2 5 Qimonda DS HYB18T512B00B2F3SFSS28171

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

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

512MB Apacer 78.91G92.9K5 5 Apacer SS AM4B5708JQJS7E0751C

1G Apacer 78.01G9O.9K5 5 Apacer SS AM4B5808CQJS7E0751C

1G Apacer AU01GE667C5KBGC N/A Apacer DS AM4B5708GQJS7E0636B

1G Apacer AU01GE667C5KBGC 5 Apacer DS AM4B5708MIJS7E0627B

2G Apacer 78.A1G9O.9K4 5 Apacer DS AM4B5808CQJS7E0749B

1G Transcend 506010-4894 5 Elpida DS E5108AJBG-6E-E

512MB ADATA M2OAD5G3H3160Q1C52 N/A ADATA SS AD29608A8A-3EG20813

2G ADATA M2OAD5H3J4170I1C53 N/A ADATA DS AD20908A8A-3EG 30724

512MB PSC AL6E8E63J-6E1 5 PSC SS A3R12E3JFF717B9A00

1G PSC AL7E8E63J-6E1 5 PSC DS A3R12E3JFF717B9A01

1G PSC AL7E8F73C-6E1 5 PSC SS A3R1GE3CFF734MAA0J

2G PSC AL8E8F73C-6E1 5 PSC DS A3R1GE3CFF733MAA00

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

1G Nanya NT1GT64U8HB0BY-3C 5 Nanya DS NT5TU64M8BE-3C72155700CP

1G GEIL GX21GB5300SX 3 GEIL DS Heat-Sink Package

(continued on the next page)

1-14 Chapter 1: Product introduction

DDR2-667MHz capability

SS/

DIMM support

Size Vendor Part No. CL Chip Brand

Chip No.

DS

A* B* C*

2G GEIL GX24GB5300LDC 5 GEIL DS Heat-Sink Package

1G Super Talent T667UB1GV 5 Super Talent DS PG 64M8-800 0750

512MB Twinmos 8D-A3JK5MPETP 5 PSC SS A3R12E3GEF633ACAOY

1G ELIXIR M2Y1G64TU8HA2B-3C 5 ELIXIR DS M2TU51280AE-3C717095R28F

1G ELIXIR M2Y1G64TU8HBOB-3C 5 ELIXIR DS N2TU51280BE-3C639009W1CF

1G Leadmax LRMP512U64A8-Y5 N/A Hynix DS HY5PS12821CFP-Y5 C 702AA

512MB MDT DDRII 512 PC667 4 MDT DS 18D51201D-30726E

1G MDT MDT 1024MB 4 MDT DS 18D51200D-30646

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

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

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 TMS1GB264C081-665AE 5 takeMS DS MS18T51280-3SEA07100

512MB ASINT SLX264M8-J6E N/A ASINT SS DDRII6408-6E

1G ASINT SLY2128M8-J6E N/A ASINT SS DDRII1208-6E 8115

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 UMAX D46701GP3-63BJU N/A UMAX DS U2S12D30YP-6E

2G UMAX D46702GP0-73BCU 5 UMAX DS U2S24D30TP-6E

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

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 or the black slots as one

pair of Dual-channel memory conguration.

C*: Supports four modules inserted into both the yellow and black slots as two pairs of

Dual-channel memory conguration.

Visit the ASUS website at www.asus.com for the latest QVL.

ASUS P5QL 1-15

1.7.3 Installing a DIMM

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.

2

To install a DIMM:

DDR2 DIMM notch

1. Press the retaining clips outward to

unlock a DDR2 DIMM socket.

2. Align a DIMM on the socket such that

1

the notch on the DIMM matches the

break on the socket.

1

Unlocked retaining clip

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.

3. Firmly insert the DIMM into the socket

3

until the retaining clips snap back in place

and the DIMM is properly seated.

Locked Retaining Clip

1.7.4 Removing a DIMM

To remove a DIMM:

1. Simultaneously press the retaining clips

outward to unlock the DIMM.

2

Support the DIMM lightly with

your ngers when pressing the

1

retaining clips. The DIMM might

get damaged when it ips out with

extra force.

1

DDR2 DIMM notch

2. Remove the DIMM from the socket.

1-16 Chapter 1: Product introduction