Asus V3-P5G33 - Manual (Page 27)

2-9 ASUS V-Series P5G33
2.5.1 Memory configurations
• 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.
• If you install four 1 GB memory modules, the system may only
recognize less than 3GB because the address space is reserved for
other critical functions. This limitation appears on Windows ® XP/Vista
32-bit operation system which does not support Physical Address
Extension (PAE).
• If you install Windows ® XP/Vista 32-bit operation system, a total
memory of less than 3GB is recommended.
• This motherboard does not support memory modules made up of
128 Mb chips.
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
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
8 GB on the operating systems listed below. You may install a
maximum of 2 GB DIMMs on each slot.
• Some old-version DDR2-800/667 DIMMs may not match Intel ® ’s
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.
You may install 256 MB, 512 MB, 1 GB, and 2 GB unbuffered non-ECC DDR2
DIMMs into the DIMM sockets.
Recommended Memory Configurations