My cpu is oc'd to 2.8 @ 1.4v...memory is underclocked as it is ddr500, but on a divider with the 280 FSB. My vid card is oc'd as well, fairly close to it's limits on the memory and core, but i have no voltage control, so that may be the culprit. I use the ingame VOIP, so i'm gonna leave that on...
so, i'm guessing the cpu needs more volts or the vid card is tipping it off...