Asus P5LD-MR User Manual download pdf (Page 33)

ASUS P5LD-MR 2-13

2.4 System memory

2.4.1 Overview

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 gure illustrates the location of the DDR2 DIMM sockets:

2.4.2 Memory configurations

You may install 256 MB, 512 MB, and 1 GB unbuffered non-ECC DDR2

400/533/667 DIMMs into the DIMM sockets.

• Always install DIMMs with the same CAS latency. For optimum

compatibility, we recommend that you obtain memory modules from

the same vendor. Refer to the DDR2 Qualied Vendors List on the

ASUS web site (www.asus.com).

• Due to chipset resource allocation, the system may detect less than 4 GB

of system memory when you installed four 1 GB DDR memory modules.

• Due to chipset limitation, DDR2 667 4-4-4 is not supported on this

motherboard.

• When installing one or two DIMMs, install the DIMM(s) to the black

slots (DIMM_A2/DIMM_B2).

• Due to shared chipset memory, the total size of momories installed

may reduce 8MB.

• Three DDR2 DIMMs intalled into any three memory sockets will

function in dual-channel asymmetric mode.

P5LD-MR 240-pin DDR2 DIMM Sockets

DIMM_A1

DIMM_B2

DIMM_B1

DIMM_A2

112 Pins128 Pins

P5LD-MR

Channel Sockets

Channel A DIMM_A1 and DIMM_A2

Channel B DIMM_B1 and DIMM_B2

1 ... 32 33 34 ... 160

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Asus P5LD-MR User Manual Page 33