Asus P5LD2-VM DH 1.7.1Overview, 1.7.2 Memory Configurations, 1.7System memory, P5LD2-VMDH 240-pinDDR2 DIMM sockets

1.7System memory

1.7.1Overview

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 differently to prevent installation on a DDR DIMM socket.

The figure illustrates the location of the DDR2 DIMM sockets:

DIMM A1 DIMM A2 DIMM B1 DIMM B2

P5LD2-VM DH

P5LD2-VM DH 240-pin DDR2 DIMM sockets

ChannelSockets

Channe l A DIMM_A1 and DIMM_A2

Channe l B DIMM_B1 and DIMM_B2

1.7.2 Memory Configurations

• IF you installed four 1GB memory modules, the system may detect less than 3GB of total memory because of address space allocation for other critical functions. This limitation applies to Windows XP 32-bit version operating system since it does not support PAE (Physical Address Extension) mode.

• IF you install Windows XP 32-bit version operating system, we recommend that you install less than 3GB of total memory.

• For dual-channel configuration, the total size of memory module(s)

installed per channel must be the same for better performance (DIMM_A1+DIMM_A2=DIMM_B1+DIMM_B2).

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