Dell XPS /Dimension Gen 4 Service Manual

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Back to Contents PageRemoving and Installing PartsDell™ Dimension™ XPS Service ManualMemoryYou can increase your computer memory by installing memory modules on the system board.Your computer supports DDR2 memory. For additional information on the type of memory supported by your computer, see the technical specifications formemory.DDR2 Memory Overviewl DDR2 memory modules should be installed in pairs of matched memory size, speed, and technology. If the DDR2 memory modules are not installed inmatched pairs, the computer will continue to operate, but with a slight reduction in performance. See the label in the upper-right corner of the module todetermine the module's capacity.The recommended memory configurations are:¡ A pair of matched memory modules installed in DIMM connectors 1 and 2or¡ A pair of matched memory modules installed in DIMM connectors 1 and 2 and another matched pair installed in DIMM connectors 3 and 4l If you install mixed pairs of DDR2 400-MHz (PC2-3200) and DDR2 533-MHz (PC2-4200) memory, the modules function at the slowest speed installed.Similarly, if you install memory modules with mixed CAS Latency (CL) rates, the modules function at the speed and CAS latency capabilities of theslowest DIMM.l Be sure to install a single memory module in DIMM connector 1, the connector closest to the processor, before you install modules in the otherconnectors.MemoryCardsDrivesHard DriveFloppy DriveCD/DVD DriveProcessor Airflow ShroudProcessorSystem BoardPower SupplyFront PanelFront LED BoardDrive DoorBatteryNOTE: Always install DDR2 memory modules in the order indicated on the system board.NOTICE: Do not install ECC memory modules.