I dont know wich part of my PC is failing on my system is it my GPU (gtx 660) or my PSU (corsair 850W, dont know exact name) or even my CPU (fx 6300). Recently my computer shutdowns randomly and in even viewer critical error Kernel-Power 41 shows up at the time when my computer shutdowns. Also i have gotten some screen glitches (etc. "snow", or my screen goes black for couple seconds)