Potential Video Card Problem???

August 2, 2010 at 09:12:10
Specs: Windows Vista
I'm trying to isolate a problem of my computer freezing up during graphics intensive applications (gaming). It just started doing this and starts to throw up a bunch of small wavy blue lines across the screen when this happens superimposed over the last image on the moniter. The application/game locks up and I have to reboot the computer. When I boots sometimes, I will see blue vertical lines (2 sets of 2) on startup. If the computer is in safe mode, I still see some interference on the screen, but things dont lock up like they do if its not in safe mode. I tried loading the latest driver for the video card and also resetting windows to an earlier time before the problem occured. Both of these attempts haven't stopped the problem. What should I try to do next (video card switch, put the plug for the monitor into a different port, check the RAM, switch out the power supply, or is this a problem with the BIOS or the motherboard)? Thanks!

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#1
August 2, 2010 at 09:33:18

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#2
August 2, 2010 at 11:33:57
I will definitely explore the heating issue by opening up the side of the case and pointing a fan inside to see if the problem occurs again. In addition I will see if the fan on the videocard is working (the case is transparent on the one side), as well as making sure everything is seated properly (cables and the video card) and get rid of dust. If it is a heating problem, I will increase the speed of the fans (right now they are at a low speed) and potentially underclock the GPU by 10%. If the problem isn't fixed, I will let you know. Thanks!

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#3
August 3, 2010 at 10:34:51
After evacuating dust out, increasing the air flow to the case, making sure the fan was working in the video card, and switching ports for where the monitor was plugged in, the problem occured just as fast. As soon as something with 3D graphics came on, the computer locked up with the blue lines going across the entire screen. For tonight, I'm going to switch monitors, do a mem test on the 4-1GB DDR2 RAM I have, uninstall the video and display drivers with installation of the most current ones. If the problem persists, my next target will be removal of the video card??? Keep in mind as in my original post says, sometimes at startup (during booting), I will see horizontal blue lines (a pair on each side of the screen) for a bit, before these disappear. Any thoughts on my plan of action and what might be at cause? I also haven't lowered the GPU speed of the videocard yet (its running at normal speed and has under the same conditions for over 1.5-2.0 years).

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#4
August 5, 2010 at 07:25:47
I fixed the problem after going through some of the www.playtool.com list suggestions. The last fixes I did to correct the video card problem were changing out an adapter that the moniter needed to hook up to the video card, as well as uninstalling the sound and display drivers (to get rid of corrupt coding). Then I installed the latest versions of both. Thankfully, one of those seemed to do the trick. The corruption I suspect happened from too many forced shut downs of my computer from a miserable program my ASUS motherboard provided, which was AI Nap. Due to this program, when I would go into standby mode or hibernate mode (instead of shut down), the computer would lock up during the AI nap and touching the mouse/keyboard would do nothing to free it up. I feel better now that uninstalled AI Nap since I believe the was the root cause of the corruption.

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