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 differently to prevent installation on a DDR DIMM socket.

The figure illustrates the location of the DDR2 DIMM sockets:

L1N64-SLI

WS

DIMM A2 DIMM B2

DIMM B1 DIMM A1

L1N64-SLI WS 240-pin DDR2 DIMM sockets

Channel

Sockets

Channel 1

DIMM_A1 and DIMM_B1

Channel 2

DIMM_A2 and DIMM_B2

•When using only one CPU, install memory modules to DIMM_A1 and DIMM_B1 slots only.

•Always use memory modules with same memory size and frequency.

•For dual-channel memory configuration, the DDR2 DIMMs can be installed in DIMM_A1 and DIMM_A2 either in one CPU mode or dual CPU mode.

ASUS L1N64-SLI WS

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