In the middle of playing YouTube videos and games, it all of a sudden froze. It displayed a sand like color on the main display (I have 2). For a little bit I could still hear the video playing then it cut off. I looked inside my pc and didn't see anything wrong with it. So what I did is take out a display and turn it on again. The components looked like they were having no problem. Still no display. So what I did was take out the graphics card and plugged the cable on the motherboard. No display. For what I know of, the pc doesn't reset itself since it continues to hum without changing pace. I know at least it is not my graphics card since my brother is using it right now. I am though worried it might be something else. I suspect my cup or my mobo, maybe even my ram. If it is my mobo, then that is a good thing, since it is getting replaced.
Quick note : I think my thermal paste hanged out a little bit because when I took my cpu out, it had paste on the sides but not on the pins. Didn't really see any paste on the mobo though.