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7 system memory, 1 overview, 2 memory configurations – Asus P5N-EM HDMI User Manual

Page 27

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ASUS P5N-EM HDMI

1-15

1.7

System memory

1.7.1

Overview

The motherboard comes with three 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:

1.7.2

Memory configurations

You may install 256 MB, 512 MB, 1 GB and 2 GB unbuffered non-ECC DDR2

DIMMs into the DIMM sockets.

P5N-EMHDM

I

R

P5N-EM HDMI 240-pin DDR2 DIMM Sockets

128 Pins

11

2 Pins

DIMM

1

DIMM2

Sockets

Color

DIMM1

Yellow

DIMM2, and DIMM3

Black

• The yellow socket supports maximum 2G memory modules.
• The total size supported by the two black sockets is 2G. You may install

one double-sided memory module into either the black socket, or two

single-sided memory modules into both black sockets.

• When installing two double-sided memory modules, you can only install

them into DIMM1 and DIMM2, or DIMM1 and DIMM3.

• When installing only one single-sided memory module, do not install it into

DIMM3; when installing two single-sided memory modules, do not install

them into DIMM1 and DIMM3 at the same time.

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

compatibility, it is recommended that you obtain memory modules from

the same vendor. Refer to the DDR2 Qualified Vendors List at the ASUS

website (www.asus.com) for details.