I got a weird one here. I got a new Abit AV7 mobo and AthlonXP 3000 there and after installing it and setting the proc to 3000+ (333) in the bios the system wouldn't boot. No POST errors, no video and I have to remove the cmos battery to get back into the bios.. I set it to 2800 (333) and it was fine. Set it back and nothing again. Thing is, it runs fine at 3000+ (400). I'm using it with 1.5gb of pc2700 ram. Any ideas? Is it likely to damage anything running at this speed?