Ddr2 Memory Overview - Dell Optiflex 740 User Manual

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Memory

Dell™ Optiplex™ 740 Systems

User's Guide

DDR2 Memory Overview

Addressing Memory With 4-GB or Greater Configurations (32-bit Operating Systems Only)

Removing Memory

Installing Memory

Your computer supports non-ECC DDR2 memory only. For more information on the type of memory supported by your computer, see the "Memory" section of

the specifications for your computer:

Mini Tower Computer (Model #DCSM) Specifications

Desktop Computer (Model # DCNE) Specifications

Small Form Factor Computer (Model # DCCY) Specifications

NOTICE:

Before you install new memory modules, download the most recent BIOS for your computer from the Dell Support website at

support.dell.com.

NOTE:

Memory purchased from Dell is covered under your computer warranty.

DDR2 Memory Overview

Dual-channel DDR2 memory modules should be installed in pairs of matched memory size. If the DDR2 memory modules are not installed with the same amount

of memory in each channel, the computer will continue to operate, but with a slight reduction in performance. See the label in the upper-right corner of the

module to determine the module's capacity.

NOTICE:

Do not install ECC memory modules. Doing so may cause the system not to boot or otherwise impact performance.

NOTE:

Always install DDR2 memory modules in the order indicated on the system board.

The recommended memory configurations are:

A pair of matched memory modules installed in connectors DIMM1 and DIMM2

A memory module installed in connector DIMM1

A pair of matched memory modules installed in connectors DIMM1 and DIMM2 and another matched pair installed in connectors DIMM3 and DIMM4

Be sure to install a single memory module in DIMM1, the connector closest to the edge of the system board, before you install modules in the other

connectors.

Mini Tower, Desktop, and Small Form Factor Matched Pairs