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Removing and Installing Parts 65
Memory
You can increase your computer memory by installing memory modules on the system board.
Your computer supports unbuffered, non-ECC, DDR2 memory.
NOTE: Buffered memory is not supported on this computer.
DDR2 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 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 pair of matched memory modules installed in DIMM connectors 1 and 2 (white securing
clips)
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 (black securing clips)
NOTICE: Do not install ECC memory modules.
• If you install mixed pairs of DDR2 400-MHz (PC2-3200) and DDR2 533-MHz (PC2-4300)
memory, the modules function at the speed of the slowest module 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.