Sorry to be a pain, but I was hoping someone could answer my question regarding a vCore limit to the 45nm Quads ... in my case the Xeon 3360 ...

I am slowly working into this board and proc with 4GB OCZ Reaper PC2 8500. I can't quite seem to get a decent range of voltages that will let me go above 445FSB with either the 8 or 8.5 multi ... any suggestions? At 440 FSB with the 8.5 multi, and vCore around 1.36v she'll boot into Windows (XP 64) without a hitch, but as soon as I try to run Prime95, the first two cores halt immediately , yet the second two keep on working ... really weird shyt! I can bring it back down to stock volts and not a single problem with all four cores ...