i was runnin my old t'bird 1.4 @ 166x10. (166/166) = 333mhzfsb
i have an epox 8k3a mb. when the fsb is up at 166 the agp/pci speeds revert back to 66/33 so there is no problems here.
i found that win xp didn't like it much so i reverted back to 98se
overall there is a performance gain the mem running in sync with the fsb, round 33%
still tryin to unlock my xp1900 to get it up higher. it's runnin now @ 150x12.5 1800mhz @ 35°C (water cooled)