So
this is the mobo I have. Has an integrated AMD 4250 or something like that.
This is the PSU I have.
I had an EVGA GTX 570. Turned the PC off, plugged it in. Turned it on. Uninstalled all the Catalyst drivers and anything to do with AMD. Ok cool. Installed Nvidia drivers.
Loaded up some games on Steam like World in Conflict. Every time I played for about 45 minutes or so, it would restart itself. Every time. Noticed the video card was making strange rattling noises frequently, almost constantly. I recorded it here:
http://www.youtube.com/watch?v=531KrhC7QLg
The temps were sitting around 71 celsius when gaming. Not sure what the problem was.
Ended up getting an MSI GTX 570 (Frozr III). Put it in, everything is great. No rattling noises, and began playing The Witcher and ARMA II. Had The Witcher running for about an hour just to see if it restarts again. It didn't. Ok. Ran ARMA II for an hour, and yup, it restarted after about 30 minutes. Temps sit around 61 celsius when gaming.
Restarted ARMA II and played for an hour, nothing. Everything was fine. I'm so confused.
Everything AMD is uninstalled. Can't find anywhere to uninstall it in the BIOS.
So what do you guys think the diagnosis is?