My pc conf: AMD fx 4100 with ASUS M5A78L-M LX V2 Motherboard with 2GB Hynux and 8 BG Transcend rams with same freq with 2 HDDS WD 80 gb and segate 1 tb os:windows 7 64bit ....from last 2 months i am facing this sudden death of my pc....i even checked the heatsink and paste was replaced but no use my pc heats up suddenly and causing death