Question About Hardware Problem

So I have been having some random freezes. The system can work perfectly fine playing video games for hours at a time and then randomly freeze watching some light weight videos. I originally thought it may be a software problem until it froze on the bios screen earlier tonight. The way its freezing points me to a video card or powersupply problem. First the display freezes. Then the screen turns off and goes black. Then the fans turn off with the keyboard lights turning off at the very end.

Update I reseated ram and the video card. I have a card coming in tomorrow from the factory to replace a 470 GTX that does happen to overheat with furmark. So hopefully everything works tomorrow. Otherwise I will probably replace the powersupply and mobo.

Layback Bear said:

Just curious; have you figured out why the video card is over heating?
That would be good to know before installing another card.
Could you insert your case (tower) in your system specs.

I have a haf 912 with some sp120's blowing at 2350 rpm.
The 470 gtx is refurbished and has always done this. By the time I found out it was to late to return it. I put the 7970 in. The temps are fine so I dont think the card is getting overvolted. It usually takes a long time for the freeze to show up. I will probably replace the powersupply if it freezes like this again later down the road. I also ran prime95 for about 30 minutes with 60C max with no freezes. So this problem is pretty wierd.