I picked up the 6GB 1866 model of the GT's, and am struggling getting up to speed. I have the EVGA X58 and the volatage terminology between the various MB manufacturers is tripping me up. Not to mention the difference in bios options. Can anyone give me hint at which voltages to look at first? My first few attempts to boot at 133 bclock and 14x memory multi led to a C3 post code hang.