Hunting down an nVidia blue screen

[crsgardner]

Hey all. I'm trying to hunt down the cause of my system blue screening. On others' advice, I've been running my nVidia 6800 GT at Ultra speeds, and downloaded the 66.81 beta driver set. It's worked great up until today.

In preparation for Halo 2, I decided to install Unreal Tournament 2004 back on my system and get some FPS practice. However, regardless what I'm doing within the game, my system *always* blue screens when I close the program. The stop error is the IRQ (less than or...) one. So far, UT2004 is the only program that's caused this, but I'm leaning towards the video card being the culprit.

So here's the issue: what's causing this, and how do I fix it? Is it the drivers, the overclock, or a combination of the two? For reference, I've never seen an artifact and my system has performed flawlessly at Ultra speeds. The 66.81 beta drivers have also worked very well up until now (noticable speed increase). Are these drivers known to have problems? Overall, what do you guys suggest?

 

[crsgardner]

Ok, did a little research and found what may be causing the problem: DEP in SP2.

DEP and UT2004

It's a combination of the drivers, DEP, an Athlon 64 system and SP2 (wonderful). What do you guys suggest? Just enabling an exception for DEP?

 

[BFG10K]

The official 61.77 drivers don't have this problem and I would suggest using them.

 

[crsgardner]

I'd go with the official drivers but there's such a marked performance increase with the betas that I'm hesitant. Also, if it's truly a DEP problem, I'd rather create an exception than pull the drivers. They've performed fine with every other thing I've thrown at them.