My IS7 bugging out?

[Peen]

i dont know what the hell is going on but here goes.......

I have an Is7 with a 2.4c and good aircooling , and when i set my FSB to 292 it will do around 8 tests of prime95 then fail at 1.675 volts in the bios (1.6v actual load) , my cpu stays around 55c which reads HIGH cause its abit. Right when when i put 1.7v in the BIOS it wont even do 1 test of prime95 , i mean right when i hit the GO button on prime it fails. My 12v rail stays above 11.80v and my 3.3v line stays aboy 3.35 and 5v stays at 5.11 ............ what can be causing this, is it my mobo?

[Liquid3D]

Memory timings, vcore, or vdimm. 292FSB at which divider 5:4 or 3:2, must be 5:4 right? 290FSB at 5:4 is about the limit for most memory, at tighter timings, if you lossen them up that should change. It may be voltage related however. What are your voltages?

[Peen]

no im at 3:2 cause my pc3200 wont do more, and ive tried the most laid back memory you can possibly do , its just when i up the voltage to the CPU

ok heres my voltages 1.65 cpu , 2.7 mem , agp 1.55even though AGP doesnt matter. It will do prime95 for about 10 tests at those settings but right when i up it to 1.675 it wont even do 1 test. Did memtest and no errors