Asus P5B Premium Series Hardware User Manual page 42

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Notes on memory limitations
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Windows 2000 Advanced Server
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P5B Premium Series Motherboard Qualified Vendors Lists (QVL)
DDR2-800MHz capability
Size Vendor
512MB KINGSTON
1024MB KINGSTON
1024MB KINGSTON
1024MB KINGSTON
2048MB KINGSTON
512MB Qimonda
256MB Qimonda
512MB Qimonda
1024MB Qimonda
512MB SAMSUNG
256MB SAMSUNG
512MB SAMSUNG
1024MB SAMSUNG
512MB Hynix
2-14
If you install four 1 GB memory modules, the system may detect less than
3 GB of total memory because of address space allocation for other critical
functions. This limitation applies to Windows XP 32-bit version operating
system since it does not support PAE (Physical Address Extention) mode.
If you install Windows XP 32-bit version operating system, we recommend
that you install less than 3GB of total memory.
Due to chipset limitation, this motherboard can only support up to
8 GB on the operating systems listed below. You may install a maximum of
2 GB DIMMs on each slot, but only DDR2-533 and DDR2-667 2 GB density
modules are available for this configuration.
32-bit
Some old-version DDR2-800/667 DIMMs may not match Intel
On-Die-Termination (ODT) requirement and will automatically downgrade to
run at DDR2-533. 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.
Due to chipset limitation, DDR2-667 with CL=3 will be downgraded to run
at DDR2-533 by default setting. If you want to operate with lower latency,
adjust the memory timing manually.
Chip No.
K4T51083QC
K4T51083QC
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
HYB18T256800AF25F
HYB18T512160BF25F
HYB18T512800BF25F
HYB18T512800BF25F
EDD339XX
K4T51163QC-ZCE7
ZCE7K4T51083QC
ZCE7K4T51083QC
HY5PS12821BFP-S5
Windows XP Professional x64 Edition
Windows Vista x64 Edition
SS/
Part No.
DS
SS KVR800D2N5/512
DS KVR800D2N5/1G
DS KHX6400D2LL/1G
SS KHX6400D2LLK2/1GN
DS KHX6400D2K2/2G
DS HYS64T64020HU-25F-A
SS HYS64T32000HU-25F-B
SS HYS64T64000HU-25F-B
DS HYS64T128020HU-25F-B
SS M378T6553CZ3-CE7
SS M378T3354CZ3-CE7
SS M378T6553CZ3-CE7
DS M378T2953CZ3-CE7
SS HYMP564U64BP8-S5
Chapter 2: Hardware information
64-bit
®
's
DIMM support
A* B* C*
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