Asus P5N7A-VM User Manual - Page 31

P5N7A-VM Motherboard Qualified Vendors Lists QVL, DDR2-667MHz capability - memory

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Page 31 highlights

• 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 configuration. Any excess memory from the higher-sized channel is then mapped for single-channel operation. • Always install DIMMs with the same CAS latency. For optimum compatibility, it is recommended that you obtain memory modules from the same vendor. • When installing total memory of 4GB capacity or more, Windows® 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. Notes on memory limitations • Due to chipset limitation, this motherboard can only support up to 16 GB on the operating systems listed below. You may install a maximum of 4 GB DIMMs on each slot. 64-bit Windows® XP Professional x64 Edition Windows® Vista x64 Edition • Some old-version DDR2-800 DIMMs may not match Intel®'s On‑Die‑Termination (ODT) requirement and will automatically downgrade to run at DDR2-667. If this happens, contact your memory vendor to check the ODT value. • Due to chipset limitation, DDR2-800 with CL=4 will be downgraded to run at DDR2-667 by default setting. If you want to operate with lower latency, adjust the memory timing manually. P5N7A-VM Motherboard Qualified Vendors Lists (QVL) DDR2-667MHz capability Size Vendor Part No. 2G 512MB Kingston Kingston KVR667D2N5/2G KVR667D2N5/512 CL Chip Brand N/A Micron N/A Kingston 2G Kingston KVR667D2N5/2G 1G Kingston KVR667D2N5/1G N/A Elpida N/A Kingston 512MB Qimonda HYS64T64000EU-3S-B2 5 Qimonda 1G Qimonda HYS64T128020EU-3S-B2 5 Qimonda 1G Corsair XMS2-5400 4 Corsair SS/ DS Chip No. DIMM support A* B* C* DS 7RE22 D9HNL • • SS SO1237650821 SBP D6408TR • • • 4CGL25USL074905PECNB DS E1108ACBG-8E-E 0813A90CC • • DS SO1280420822 SOP D6408TR • • • 4CGL25USL156304PECXA SS HYB18T512B00B2F3SFS S28171 • • • DS HYB18T512B00B2F3SFS S28171 • • DS Heat-Sink Package • • • (continued on the next page) ASUS P5N7A-VM 1-19

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ASUS P5N7A-VM
1-19
•
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
configuration. Any excess memory from the higher-sized channel is then
mapped for single-channel operation.
•
Always install DIMMs with the same CAS latency. For optimum compatibility,
it is recommended that you obtain memory modules from the same vendor.
•
When installing total memory of 4GB capacity or more, Windows
®
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.
64-bit
Windows
®
XP Professional x64 Edition
Windows
®
Vista x64 Edition
Notes on memory limitations
•
Due to chipset limitation, this motherboard can only support up to
16 GB on the operating systems listed below. You may install a maximum
of 4 GB DIMMs on each slot.
•
Some old-version DDR2-800 DIMMs may not match Intel
®
’s
On-Die-Termination (ODT) requirement and will automatically downgrade
to run at DDR2-667. If this happens, contact your memory vendor to check
the ODT value.
•
Due to chipset limitation, DDR2-800 with CL=4 will be downgraded to run
at DDR2-667 by default setting. If you want to operate with lower latency,
adjust the memory timing manually.
P5N7A-VM Motherboard Qualified Vendors Lists (QVL)
DDR2-667MHz capability
Size
Vendor
Part No.
CL
Chip
Brand
SS/
DS
Chip No.
DIMM support
A*
B*
C*
2G
Kingston
KVR667D2N5/2G
N/A
Micron
DS
7RE22 D9HNL
•
•
512MB
Kingston
KVR667D2N5/512
N/A
Kingston
SS
SO1237650821 SBP D6408TR
4CGL25USL074905PECNB
•
•
•
2G
Kingston
KVR667D2N5/2G
N/A
Elpida
DS
E1108ACBG-8E-E 0813A90CC
•
•
1G
Kingston
KVR667D2N5/1G
N/A
Kingston
DS
SO1280420822 SOP D6408TR
4CGL25USL156304PECXA
•
•
•
512MB
Qimonda
HYS64T64000EU-3S-B2
5
Qimonda
SS
HYB18T512B00B2F3SFS
S28171
•
•
•
1G
Qimonda
HYS64T128020EU-3S-B2
5
Qimonda
DS
HYB18T512B00B2F3SFS
S28171
•
•
1G
Corsair
XMS2-5400
4
Corsair
DS
Heat-Sink Package
•
•
•
(continued on the next page)