I just bought my comp 2 months ago from cyberpower. I was playing Diablo III and after 30 minutes I got a black screen and had to power off using the power button. Would not turn on again after that, no lights or anything except for the red standby light on the middle part of the computer. The game was running very smooth and good before the freeze. I thought it was my power supply but i pulled out my graphics card and the computer turned on power wise.