My computer keeps shutting down without notice. When playing high graphics games (Far cry 3, Witcher 2, Thief) my computer shuts off no with no warning. I did notice CPU temperatures very fairly high, idle temp is around 65C and when gaming is around 80-90C. I tried buying a new cpu cooler for around 50 dollars but it did not seem to do much. My CPU is AMD A8 6600k Quad core in a FM2 socket. Graphics card is a GTX 760 MSI Twin frozer. Help