Please Help otherwise 6950 will be a brick!

j2j663

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Apr 29, 2011
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So I was messing around with GPU fan control last night with a couple of programs. It then hit me that CCC (catalyst control center) also had a GPU fan control in its overdrive feature. I don't have overdrive enabled as I have not taken the plunge and committed the time to learning what I should before I OC my graphics card.

Problem:
So long story short I enabled overdrive to try and control the fan speed and in my haste and short sightedness I did not check the other GPU settings. Now I cannot boot or switch to using the card or everything on the screen will freeze. Which means I have no real way of knowing if it is just the display freezing up or if the whole computer actually locks. I have gotten a blue screen a couple of times if I let it sit long enough with frozen windows.

My best guess at what happened is that I didn't pay attention to the other settings in Overdrive when I enabled it and now my GPU is OCed beyond its limits.

What I have done so far:
I have fallen back on my integrated graphics which work fine but obviously I want the card back! The problem is that when I go back into CCC when using the integrated graphics it only shows the settings for the integrated graphics, not the settings for the 6950 which means I don't even see an option for Overdrive. I have also trying booting into windows with the integrated graphics and then switching to the discrete GPU. As soon as the screen comes back from black there is a frozen windows with some artifacts on it waiting for me. I have also tried booting into safe mode with the discrete graphics which works but only because windows does not load the drivers for the graphics so starting CCC just leads to an error that says I have no graphics cards installed.

My next steps will probably be to erase and reinstall the driver and then to erase and reinstall CCC. But like I said before I am not very knowledgeable when it comes to OCing a GPU so I don't know what exactly will work to fix this and what is just going to leave me more frustrated.
 
Boot in safe mode and remove all your ATI drivers, then enable the 6950 again, restart and reinstall drivers. I wouldn't use overdrive in the future. Download and install MSI afterburner and just go in small increments and then use kombuster to test stabilty.
 
Thanks for the post but it would have been nice if you had read the original post.

I wasn't trying to OC my graphics card and those steps were the next things I was going to try.

I uninstalled CCC and amd overdrive with revo uninstaller, then cleaned my temp files with CCleaner and finally cleaned up my registry with auslogic registry cleaner. (This is pretty standard for me when uninstalling a program as I don't like to leave crap behind).

I then reinstalled CCC and sure enough it came up with the same problems, it seems as though something stuck around after I uninstalled the program, that or I actually changed the bios setting of my card (which I highly doubt).

So I am still looking for advice on what to do next.
 
Try these steps.

1. Download "Driver Sweeper"
2. Boot in safe mode and uninstall ccc and drivers
3. Run Driver Sweeper and remove all ati and amd files
4. Reboot windows with the 6950. It should load the default windows driver.
5. Download the newest drivers again from the AMD website and install them. You may need to reinstall your motherboard AMD chipset drivers too as Driver Sweeper might have also removed them.