Will I encounter problems with a 400 FSB CPU and a mobo that only supports 333???

imported_Roman

Senior member
Jul 21, 2004
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I ordered a CPU and got a 400 FSB not knowing that my mobo only supports up to 333. Should I cancel the order immediately or will the CPU adapt? THank you.

~Roman
 

Ryoga

Senior member
Jun 6, 2004
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The CPU can adapt, but it will not run at it's rated speed and the BIOS may not detect it correctly or automatically. The final CPU speed is a multiple of the FSB speed, and you generally can't set the multiplier higher than the manufacturer rating.
 
Jun 11, 2004
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I'd cancel the order. The CPU will run at 333, but why pay a premium for performance you are not going to use? A 3200+ running at a 333FSB is a 2500+ at more than twice the price.