Asus P5GD2-X User Manual download pdf (Page 28)

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Chapter 1: Product introductionChapter 1: Product introduction

Chapter 1: Product introduction

1.7 System memory

1.7.11.7.1

1.7.1

OverviewOverview

Overview

The motherboard comes with four 240-pin 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 following figure illustrates the location of the sockets:

1.7.21.7.2

1.7.2

Memory ConfigurationsMemory Configurations

Memory Configurations

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

DIMMs into the DIMM sockets using the memory configurations in this

section.

•

For dual-channel configuration, the total size of memory module(s)

installed per channel must be the same

(DIMM_A1+DIMM_B1=DIMM_A2+DIMM_B2)

•

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 DDR2-533 Qualified Vendors

List on the next page for details.

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

4 GB of system memory when you installed four 1 GB DDR2 memory

modules.

• Due to chipset limitation, DIMM modules with 128 Mb memory chips

or double-sided x16 memory chips are not supported in this

motherboard.

P5GD2-X

P5GD2-X 240-pin DDR DIMM sockets

DIMM_A1

DIMM_A2

DIMM_B1

DIMM_B2

128 pin 112 pin

1 ... 27 28 29 ... 96

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