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BUS speed and memory

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by james_randy

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If I have a motherboard with 133MHz BUS speed, I realize that I MUST use DIMMS with 133MHz BUS speed as well, 100MHz will cause problems. But If I have an older motherboard with 100MHz BUS speed, would there be any possible negative repercussions ifI used DIMMS with 133MHz?

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by saihib

You should have no problems. PC133 is supposed to be backward compatible with slower buses. I run PC133 on a 100Mhz board with no problems. In general, you can run memory slower than it's rated speed. The speed designation is a recommended maximum.

by csmith

The only motherboard conflict I have encountered is that some 66MHz memory bus motherboards must have 66MHz memory, with the 100MHz motherboards, no problem.
You can use 150MHz memory in a 100Mhz motherboard and it will work fine.
Rergards, Chris

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