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by j24

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I need this settled once and for all Does RDRAM Require all RIMMS to be populated with The equal size of ram module EG: you have to RIMMS on your MOBO do they both have to be 128 or 256 or can one be 256 and the other 128 for a total of 384??

J

2 replies

by mgabca

It could be both ways. But for better performance use both RIMMS with an equal module size.

by thechas

Sorry, there is not a definitve answer to the RDRAM question.

Most P3 and Celeron MBs will function fine with only 1 RDRAM module, or mismatched module sizes.

Most, but not all P4 motherboards do require the RDRAM to be installed in matched pairs.

If you do not install RDRAM in pairs, you do need to install a CRIM module in the second slot.

There is a performance advantge to having matched pairs, as you can set the memory to use an interleave mode (similar to RAID).

Chas

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