Memory Configurations - Asus P5KPL-AM SE User Manual

1.7.2

Memory configurations

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
• Always install DIMMs with the same CAS latency. For optimum compatibility, we
• Due to the memory address limitation on 32-bit Windows OS, when you install 4GB
• This motherboard does not support memory modules made up of 128 Mb chips.
Notes on memory limitations
• This motherboard only supports up to 4GB on Windows
You may install up to 2GB DIMMs on each slot. Install only DDR2 800 and DDR2 667 2GB
DIMMs.
Windows
Windows
• Some old-version DDR2-800 DIMMs may not match Intel
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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.
recommend that you obtain memory modules from the same vendor.
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 install a 64-bit
Windows OS when having 4GB or more memory installed on the motherboard.
32-bit
XP
®
® Vista
requirement and will automatically downgrade to run at DDR-667. If this happens,
contact your memory vendor to check to ODT value.
XP x 64 and Vista x 64 editions.
®
64-bit
Windows XP x 64 Edition
®
Windows ® Vista x 64 Edition
On-Die-Termination (ODT)
®
Chapter 1: Product introduction