Dell 8200 manual Rdram Overview

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HINT: The metal cover on a memory module is manufactured in various colors. The color of the metal cover has no effect on the module’s performance.

RDRAM Overview

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 the new modules were purchased from Dell. Your original memory modules must be installed as a pair in either connectors RIMM1 and RIMM 2 or RIMM 3 and RIMM4. Do not pair one original memory module with one new memory module in connectors RIMM1 and RIMM2 or RIMM3 and RIMM4. Otherwise, your computer may not start properly.

RDRAM technology requires that all memory connectors have either a memory module or a continuity module installed. Memory modules and continuity modules are easily identified—memory modules have a metal cover on one side of the module and continuity modules do not.

metal cover

memory module

continuity module

Memory modules are the actual components that provide memory for the microprocessor; continuity modules are used only to complete the memory circuit if memory modules are not installed in all of the memory connectors.

Another RDRAM requirement is that memory modules must 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 must remove the two continuity modules and replace them with two 64-MB memory modules.

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