Asus P5K-E/WiFi-AP User Manual download pdf (Page 40)

2-14 Chapter 2: Hardware information

• 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 Vista 32-bit/Windows XP 32-bit

version operating system since it does not support PAE (Physical Address

Extention) mode.

• If you install Windows Vista 32-bit/Windows XP 32-bit version operating

system, we recommend that you install less than 3GB of total memory.

Notes on memory limitations

• 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.

64-bit

Windows XP Professional x64 Edition

Windows Vista x64 Edition

• 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 chipset resource allocation, the system may detect less than 8 GB

system memory when you installed four 2 GB DDR2 memory modules.

2.4.2 Memory congurations

You may install 512 MB, 1 GB, and 2 GB unbuffered non-ECC DDR2 DIMMs into

the DIMM sockets.

Mode

Sockets

DIMM_A1 DIMM_B1 DIMM_A2 DIMM_B2

Single-Channel

- Populated -

Populated - - -

Dual-channel (1) Populated Populated - -

Dual-channel (2) Populated Populated Populated Populated

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Asus P5K-E/WiFi-AP User Manual Page 40