Asus V3-P5G965 User Manual - Page 26

Installing a DIMM

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2.5 Installing a DIMM The system motherboard comes with two Double Data Rate 2 (DDR2) Dual Inline Memory Module (DIMM) sockets. The following figure illustrates the location of the sockets: DIMM_A1 DIMM_A2 DIMM_B1 DIMM_B2 112 Pins P5B-VM R 128 Pins 240-pin DDR2 DIMM Sockets 2.5.1 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 the total size of the lower-sized channel for the dual-channel configuration. Any excess memory from the highersized 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 or 2GB 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 32-bit operation system which does not support Physical Address Extension (PAE). • If you install Windows® XP 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 or double sided x16 memory modules. 2- Chapter 2: Basic installation

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2-8
Chapter 2: Basic installation
2.5
Installing a DIMM
The system motherboard comes with two Double Data Rate 2 (DDR2) Dual
Inline Memory Module (DIMM) sockets.
The following figure illustrates the location of the sockets:
2.5.1
Memory configurations
You may install 256 MB, 512 MB, 1 GB, and 2 GB unbuffered non-ECC DDR2
DIMMs into the DIMM sockets.
P5B-VM
240-pin DDR2 DIMM Sockets
DIMM_A2
DIMM_B1
DIMM_B2
DIMM_A1
112 Pins
128 Pins
•
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 or 2GB 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 32-bit
operation system which does not support Physical Address Extension
(PAE).
•
If you install Windows
®
XP 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 or double sided x16 memory modules.