So my Evga 680i sli burned, so i bought the p7n2 MB and I cant change any voltages, just the FSB and ram speed. I am using a E6600 cpu but i am unable to overclock it more than 3.2ghz. on my old 680i i was running at 3.4ghz for the last year! any ideas how can i change the voltages in the bios?