I have an XFX6950 and I'm having this issue when I run anything but factory settings on the video card. I can run 3dmark on stock settings and the first time I touch the settings in overdrive it crashes 5 seconds into the first 3dmark test. The power supply makes almost a surging effect and I've gotten 3-4 different error messages in 3dmark. Also, each time it sends me back to my desktop, windows has the error that my ATI graphics display has stopped working and has successfully recovered. I've swapped out my old PSU for a new one (needed replaced anyway), fresh install of windows7 64bit, tried multiple drivers then did a fresh install with this driver 11.1a hotfix driver, have manual fan control on @ 100% so I know it's not overheating, and I have many stable hours in prime95 with no crashing on my current settings. Here's a video of the sound my pc makes when it happens:
http://tinypic.com/r/2cohc75/7
Any ideas?
http://tinypic.com/r/2cohc75/7
Any ideas?