Asus M2N-X PLUS User Manual - Page 24

System memory

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1.7 System memory 1.7.1 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: DIMM_A1 DIMM_B1 128 Pins R M2N-X PLUS 112 Pins M2N-X PLUS 240-pin DDR2 DIMM Sockets Channel Channel A Channel B Sockets DIMM_A1 DIMM_B1 1.7.2 Memory configurations You may install 256 MB, 512 MB, 1 GB, and 2GB unbuffered / ECC / non-ECC DDR2 DIMMs into the DIMM sockets. • You may install varying memory sizes in Channel A and Channel B. The system maps the total size of the lower-sized channel for the dual-channel configuration. Any excess memory from the higher-sized channel is then mapped for single-channel operation. • Always install DIMMs with the same CAS latency. For optimum compatibility, it is recommended that you obtain memory modules from the same vendor. • This motherboard does not support memory modules made up of 128 Mb chips or double sided x16 memory modules. 1-12 Chapter 1: Product introduction

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1-12
Chapter 1: Product introduction
•
You may install varying memory sizes in Channel A and Channel B. The
system maps the total size of the lower-sized channel for the dual-channel
configuration. Any excess memory from the higher-sized channel is then
mapped for single-channel operation.
•
Always install DIMMs with the same CAS latency. For optimum compatibility,
it is recommended that you obtain memory modules from the same vendor.
•
This motherboard does not support memory modules made up of 128 Mb
chips or double sided x16 memory modules.
1.7.2
Memory configurations
You may install 256 MB, 512 MB, 1 GB, and 2GB unbuffered / ECC / non-ECC
DDR2 DIMMs into the DIMM sockets.
1.7
System memory
1.7.1
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:
Channel
Sockets
Channel A
DIMM_A1
Channel B
DIMM_B1
M2N-X PLUS
240-pin DDR2 DIMM Sockets
128 Pins
1
12 Pins
DIMM_B1
DIMM_A1
M2N-X PLUS