2.4System memory

2.4.1Overview

The motherboard comes with four Double Data Rate 2 (DDR2) Dual Inline Memory Modules (DIMM) sockets.

A DDR2 module has the same physical dimensions as a DDR DIMM but has a 240-pin footprint compared to the 184-pin DDR DIMM. DDR2 DIMMs are notched to match the break on the socket and ensure correct installation.

The figure illustrates the location of the DDR2 DIMM sockets:

P5MT-M

128 Pins

112 Pins

DIMM_A1

DIMM_A2

DIMM_B1

DIMM_B2

P5MT-M 240-pin DDR2 DIMM sockets

2.4.2Memory configurations

You may install 256 MB, 512 MB and 1 GB unbuffered ECC/non-ECC DDR2 533/667 MHz DIMMs into the DIMM sockets.

Always install DIMMs with the same CAS latency. For optimum compatibility, it is recommended that you obtain memory modules from the same vendor.

Notes on capacity and installation of four 1 GB memory modules

•Due to chipset resource allocation, system configuration determines the system memory availability. The system typically shows about 3~4 GB available memory space due to chipset resource allocation for onboard devices and add-on cards. This will vary for different add-on cards that the user installs. Some PCI cards need larger memory space, which will make the total available memory space below 3 GB.

•To prevent compatibility issues, do not combine single and double-sided memory modules on the same motherboard/system.

ASUS P5MT-M

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