So i have a Sapphire HD6770 1GB, and since i installed 14.4 basically whenever i play a game, my whole pc freezes at random points during gameplay. At times ive managed to clock in like half an hour of BF4 gameplay, and at other times in games such as War thunder it just freezes once i load the main screen. The screen does not turn black, and BSOD is not an issue, the pc just freezes. The Audio falls into a loop and i have to restart my pc, which boots up just fine, and runs just fine until i run a game. Ctrl. Alt. Del. does not work, and the little led that shows HDD use (i think thats what it does, the one next to the power LED) just goes completely black, or keeps turned on. Overheating i dont think is a problem as both my GPU and CPU run at about 45 degrees celcius.
What could be the problem? this is a very annoying crash!