Asus T3-P5G43 User Manual - Page 28

Installing a DIMM

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2.6 Installing a DIMM The system motherboard comes with two Double Data Rate 2 (DDR2) Dual Inline Memory Module (DIMM) sockets (DIMM_A1 and DIMM_B1). The following figure illustrates the location of the sockets: P5Q18L P5Q18L 240-pin DDR2 DIMM sockets DIMM_A1 DIMM_B1 2.6.1 Memory configurations You may install up to 8 GB system memory using 512 MB, 1 GB, 2GB, and 4GB DDR2 DIMMs. • 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, we recommend that you obtain memory modules from the same vendor. • Due to the memory address limitation on 32-bit Windows OS, when you install 4GB 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. 2-8 Chapter 2: Basic installation

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2-8
Chapter 2: Basic installation
2.6
Installing a DIMM
The system motherboard comes with two Double Data Rate 2 (DDR2) Dual Inline
Memory Module (DIMM) sockets (DIMM_A1 and DIMM_B1).
The following figure illustrates the location of the 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 higher-sized channel is then
mapped for single-channel operation.
•
Always install DIMMs with the same CAS latency. For optimum
compatibility, we recommend that you obtain memory modules from the
same vendor.
•
Due to the memory address limitation on 32-bit Windows OS, when
you install 4GB 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.
2.6.1
Memory configurations
You may install up to 8 GB system memory using 512 MB, 1 GB, 2GB, and 4GB
DDR2 DIMMs.
P5Q18L
P5Q18L 240-pin DDR2 DIMM sockets
DIMM_A1
DIMM_B1