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Removing and Installing Parts 57
Memory
You can increase your computer memory by installing memory modules on the system board.
Your Dell Dimension™ computer supports DDR2 memory. For additional information on the type
of memory supported by your computer, see "Memory" on page 91.
DDR Memory Overview
DDR2 memory modules should be installed in
pairs of matched memory size, speed, and technology
.
If the DDR2 memory modules are not installed in matched pairs, the computer will continue to
operate, but with a slight reduction in performance. See the label on the upper-right corner of the
module to determine the module’s capacity.
NOTE: Always install DDR2 memory modules in the order indicated on the system board.
The recommended memory configurations are:
– A memory module installed in connector DIMM connector 1
or
– A pair of matched memory modules installed in DIMM connectors 1 and 2
or
– A pair of matched memory modules installed in DIMM connectors 1 and 2 and another
matched pair installed in DIMM connectors 3 and 4
NOTICE: Do not install ECC memory modules.
• If you install mixed pairs of DDR2 400- and 533-MHz the modules function at the slowest
speed installed.
• Be sure to install a single memory module in DIMM connector 1, the connector closest to the
processor, before you install modules in the other connectors.