P2 233@333 (3.5x66) to (5x66).
Don't know how the dang think worked, did it on accident too, Only discovered it when Novell found it as a p2 333, check the bios, a few days later, and low add behold, my matsonic(POS!) had it running at (5x66). The only reason i check is that the cpu temp as hot as hell. No fan too, just a big H/S. I was kinda impressed by it not torching itself.
My guess is either a. that mobo is truely a pos, or b. that chip is somehow unlocked.(got it out of a old Computer City machine)
and that would be 333-233 = 100/233 = 42.9%
EDIT: Must learn to type...