Dell Dimension 4600 Owner's Manual - Page 75
Adding Memory
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Adding Memory You can increase your computer memory by installing memory modules on the system board. NOTE: DDR 333 memory operates at 320 MHz when used with an 800-MHz front-side bus. DDR Memory Overview DDR memory modules should be installed in pairs of matched memory size. This means that if you purchased your computer with 128 MB of memory installed and you want to add another 128 MB of memory, you should install it in the appropriate connector. If the DDR memory modules are not installed in matched pairs, the computer will continue to operate, but with a slight reduction in performance. NOTE: Always install DDR memory modules in the order indicated on the system board. The recommended memory configurations are: • Install a pair of matched memory modules in connectors DIMM1 and DIMM2. or • Install a pair of matched memory modules in connectors DIMM1 and DIMM2 and another matched pair in connectors DIMM3 and DIMM4. • Do not install ECC memory modules. • If you install mixed pairs PC2700 (DDR 333-MHz) and PC3200 (DDR 400-MHz) memory, the modules function at the slowest speed installed. • Be sure to install a single memory module in DIMM 1 or the connector closest to the processor before you install modules in the other connectors. Memory Installation Guidelines matched pair of memory modules in connectors DIMM1 and DIMM2 matched pair of memory modules in connectors DIMM3 and DIMM4 Adding Parts 75