A month ago I started experiencing crashes on my Win7 q9550 260Nvidia Abit 35pro, 650w Corsair, while playing games like Dota or Skyrim, soon I found out it was crashing in every graphics heavy game. The Win7 message that pop said that the driver crashed , tough luck.
I didnt look much into it and bought an AMD 7770. The problem wasnt solved at all.
I installed my old WinXP OS and back to Win7 checking BIOs and the OS for some sort of IRQ conflict but there was none.
I ran a great number of benchmarks trying to pinpoint the problem. The benchmarks game me some really conflicting results. I ran AvP DX11 and DOTA 2 as spectator. AvP freezed at the exactly same point in the very beginning of the clip. DOTA 2 provided a wider variety of result, sometimes take almost 15 or 20 minutes before it crashed.
The third benchmark I used was Orthos + Furmark at the same time. My CPU RAM and VGA was stressed yet it never froze.
PSUs can and do wear out. The symptoms you describe are often associated with a failing PSU. Since you swapped the GPUs and the problem still exists, we have to look at what is common and the most likely culprits.
Your CPU is getting very hot from what you stated. What, if anything, are you overclocking (CPU, GPU, memory)?
If you are OCing, does reverting back to stock speeds resolve the crashing problem?
So I managed to get a friends 3570, his motherboard and ram to test my psu and graphics card.
Funny thing the problem showed up like nothing changed.
So I can now narrow down the culprits.
PSU, HDD or the new Graphics Card.
I m gonna get a friends PSU today and test it. Still it makes no sense. How can I run both Orthos and Furmark at the same time with no problem and get a driver crash on
Dota 2, 3dMark 11 or Skyrim ????!