it's seem like old bios ( 1001.a) more stable for me, with old bios i can get 4X agp with fastwrite and sideband enable + 64 meg agp texture, and i can run stable at 1000 mhz on my p3-800E

the new bios make my cpu temperature jump to high, and when i run 3dmark2000 for 10 times it's kick me back to windows, now i am flash back to old bios and run 3dmark2000 for 10 times again after that run setihome for 12 hour and no problem here
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p3-800E@1000mhz
asus cusl2 1001.a
256MB apacer hyundai pc133
asus gts v7700 6.18 denator