When I came home today, my video card started displaying graphic artifacts, and logging in to windows 7 would cause the computer to reboot. The computer was working fine when i last shut it down last night.
Here's a video of what's happening. I have two monitors, in the middle of the video I pan to the second monitor. At about 0:24, I attempt to login and the machine reboots. My video card is an NVidia GeForce GTX 460.
Some more symptoms I've encountered and stuff I've tried over the course of several reboots:
- was able to login normally once, but after launching a few apps (chrome, tweetdeck), graphic artifacts started appearing again and the machine eventually froze
- am able to login successfully in safe mode
- sometimes the display is fine during the start up, and only starts getting wonky a few seconds after I go to the login screen by selecting a user to login with
- have encountered Windows failing to start up at all a couple of times (blue screen during startup)
- have tried System restore/repair a few times. i've already tried all the restore points available
- have tried uninstalling the vid card driver; machine boots and lets me login and use apps as normal but of course i'm at a low resolution (and won't be able to play games). tried to reinstall the vid card driver using automatic update; after the reinstall, same problem occurred
Now I'm not sure how to proceed; all signs point to the video card being damaged and probably in need of replacement; my question is are there any other things I can try first?
Like, is it possible there's just something loose in the connections internally and I can try to remove and reconnect the card first? Or some alternative video driver to try? Or would a shop tech be able to do something to save the card?
I don't have time to take apart the computer at the moment, probably I'll do it this weekend, but I'd like to know my options ahead of time.