The reason why I'm asking this is I just built a system for a friend using the Biostar Tforce 6100 and to get his Opty 146 stable at 2.8 was to set Vcore in bios to 1.65 but CPU-Z and Biostar Monitor shows Vcore 1.50-1.52 (fluctuates). I know the safety zone for .090 chips are up to 1.55 Vcore so should I be worried?