In luihed's defense on the particular CPU-Z voltage reading: There is a known bug in CPU-Z where once you get past a certain core voltage it always reports 1.213V or thereabouts. I have already entered a bug report on this on the CPU-Z product forums but has not been fixed yet. I think this affects 965P motherboards. It affects CPU-Z 1.36 -- 1.39 and I hope they eventually fix it.