Instruction Manual

ASUS P5GD2 PremiumASUS P5GD2 Premium

ASUS P5GD2 Premium

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2-13

2.4 System memory

2.4.12.4.1

2.4.1

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:

2.4.22.4.2

2.4.2

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.

•

Installing DDR2 DIMMs other than the recommended configurations

may cause memory sizing error or system boot failure. Use any of

the recommended configurations in Table 1.

•

In dual-channel configurations, install only

identical identical

identical (the same

type and size) DDR2 DIMM pairs for each channel.

•

Always install DIMMs with the same CAS latency. For optimum

compatibility, it is recommended that you obtain memory modules

from the same vendor.

• 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, 128 MB or double-sided x16 memory

modules are not supported in this motherboard.

P5GD2 Premium

P5GD2 Premium DDR2 DIMM Sockets

DIMM_A1

DIMM_A2

DIMM_B1

DIMM_B2