I tried the utility CPu Burn-in at http://users.bigpond.net.au/cpuburn/ . My rig was stable at 240 fbs 11 multipler with 1.55V, now i dont seem to be able to pass prime95 even with 1.65V. Also i noticed that even tho i set my voltage for 1.55, it is been supplied with 1.58-1.59V. Tried changing this in Bios and no use. Anyone know a way to revert the effect of CPU Burn-in?