667 MHz RAM in a 800 MHz motherboard?

By ksteiner1234
Jul 1, 2008
  1. I am buying a new laptop and the processor I would like has a system bus speed of 800 MHz. If the RAM which comes with the computer is at 667 MHz, will it be capped at that speed? And if so, can I replace the 667 RAM with 800 MHz RAM?
  2. Rage_3K_Moiz

    Rage_3K_Moiz Sith Lord Posts: 5,443   +38

    You can only run RAM at the maximum frequency supported by the motherboard. Higher frequency RAM will be clocked down to the maximum frequency the motherboard supports. Also, if you use one stick clocked differently from the other, both will run at the frequency of the lower-clocked stick.
  3. ksteiner1234

    ksteiner1234 TS Rookie Topic Starter

    ok. And will a higher speed motherboard be clocked down to lower speed RAM. And is the only difference between PC2-5300 and PC2-6400 the speed at which they operate?
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