i have a DFI x48 lp lt 4gb of ram 1066 OCZ (it shows 667 i tried on other pc s but no change),320 GB HDD MAXTOR ,inno 3d 9800gtx+ freezer,intel quad 9550 and a 680 watt real power(green).in last 1 year i have seen that my pc restarted suddenly.on of them when i was playing evil 5 and the scene was not crowded or heavy for pc(i was in room) the other one happend when i was playing battlefield bad company 2 and i pressed escape to answer the phone when i backed i saw that it had restarted it self.whats goin on?i appreciate anyone who is anywhere at anytime.