Have you changed the heatsink compound then clean up the heatsink and check the GPU fans?
It's a common problem you see today. If you are not comfortable doing this work, get estimates or try another GPU.
Hello all. So I was watching a dvd on my computer a couple weeks ago when the dvd playback froze and the computer screen went black. When I restarted the computer, there were random white symbols cascading on startup and these lines on the screen when windows starts up. I've purchased another (used) graphics card and the issue is the same.
It's an old computer and I'm not exactly surprised something like this has happened. Computer still runs, however a bit slower and resolution not a good of course. Also, whenever I install the latest driver software for my video card and restart, it tells me I still need to install it.
Not sure what all parts I have, I do know the video card is a GeForce 8800 GTX
Mostly wondering if there's a fix to this, or if this computer's pretty much done for.

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