Dell XPS 420 owner manual 105

book.book Page 105 Tuesday, November 27, 2007 10:29 AM

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

The recommended memory configurations are:

–A pair of matched memory modules installed in connectors DIMM_1 and DIMM_2

or

–A pair of matched memory modules installed in connectors DIMM_1 and DIMM_2 and another matched pair installed in connectors DIMM_3 and DIMM_4

•If you install mixed pairs of DDR2 667-MHz (PC2-5300)and DDR2 800-MHz (PC2-6400) memory, the modules function at the slowest speed installed.

•Be sure to install a single memory module in the DIMM_1 connector, the connector closest to the processor, before you install modules in the other connectors.

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 connectors DIMM_1 and DIMM_2 or connectors DIMM_3 and DIMM_4.

NOTE: Memory purchased from Dell is covered under your computer warranty.

Removing and Installing Parts

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