System Memory; Overview; Memory Configurations - Asus M2N DH User Manual

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 figure illustrates the location of the DDR2 DIMM sockets:
R
M2N/M2N DH 240-pin DDR2 DIMM Sockets
Channel
Channel A
Channel B
2.4.2

Memory configurations

You may install 256 MB, 512 MB, 1 GB, and 2GB unbuffered ECC/non-ECC DDR2
DIMMs into the DIMM sockets.
Recommended Memory Configurations
Mode
Single Channel
Dual-channel (1)
Dual-channel (2)
ASUS M2N / M2N DH
Sockets
DIMM_A1 and DIMM_A2
DIMM_B1 and DIMM_B2
DIMM_A1 DIMM_A2
Populated
– Populated
–
–
Populated
– Populated
Populated Populated
Sockets
DIMM_B1
– –
–
– Populated
– –
– Populated
–
Populated
DIMM_B2
–
–
–
Populated
–
Populated
Populated
2-