My computer is crashing when I run multiple programs. I starting testing CPU with BurnIn Test and it crashes. Well, the monitor goes blank, but everything else seems to be on and I cannot turn it off with power button. I went into bios and the cpu tem at idle is 80 c. Is this a cpu issue or should I replace heatsink? I have the factory heat sink that came with cpu on there now and I just order cool master 212 plus. i have a A10 6800K.