Dell XPS 210 Owner's Manual page 67

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 800-MHz (PC2-6400) 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.
1 matched pair of memory modules in DIMM connectors 1 and 2 (white securing clips)
2 matched pair of memory modules in DIMM connectors 3 and 4 (black securing clips)
NOTICE:
If you remove your original memory modules from the computer during a memory upgrade, keep them
separate from any new modules that you may have, even if you purchased the new modules from Dell. If possible,
do not pair an original memory module with a new memory module. Otherwise, your computer may not start
properly. You should install your original memory modules in pairs either in DIMM connectors 1 and 2 or DIMM
connectors 3 and 4.
NOTE:
Memory purchased from Dell is covered under your computer warranty.
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Removing and Installing Parts
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