I installed a new video card and power supply today. It works, but only for a few minutes. After a few minutes the video will glitch out (on both screens) then the video will usually go out completely. Theres been two kinds of glitching- at first squares of video were repainted mis-sized across the screen. Other times there would be vertical lines. Eventually the screen will go black. If I reboot immediately, it glitches right away. I have to wait awhile for it to work again.
I am trying to figure out the problem. Since it works initially, it seems like I have it hooked up correctly. A few possibilities:
- Overheating. It is a passive video card with graphics acceleration, maybe its just overheating. This is happening when I have the case open though. If I had a ventillation issue with the case closed, I'd think it'd still be alright open.
- Bad drivers. I got the drivers with the nVidia Catalyst package, can someone recommend alternate drivers? Now that I think of it, I'm going to try to switching to the system default drivers to see if the problem goes away.
Bad video card. Could this be a defective card?
I'm running Windows Server 2008 R2. The video card is a Radeon AX5670.