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Windows 7: Purple/blue lines over screen, not sure if driver or motherboard issue

16 Dec 2011   #1

Windows 7 x64
Purple/blue lines over screen, not sure if driver or motherboard issue


I have a problem with my computer. I just restarted it, and it ended up booting with purple/blue lines all over the screen.

So the first thing i did was go into device manager. All it told me was a caution symbol next to my NVIDIA geForce 8500 GT. so i downloaded and reinstalled the drivers for it. No effect.

Then i booted into safe mode to find if it was a motherboard issue. The lines remained.

At this point im asking all of you at this fourm, what is the issue and how do i fix it? Thank you.

My System SpecsSystem Spec

16 Dec 2011   #2
Microsoft MVP

Windows 8.1 Pro with Media Center 64 bit

If its an add in card re-seat it in its slot and make sure any power cables are securely connected. You may want to unplug the power supply from the wall plug so your PC doesn't accidentally start up while you are working on it. Also make sure the heat sink is free of dust and the fan (if it has one) is working correctly. You may want to check your case fans for dust too while you have the case open.
My System SpecsSystem Spec
16 Dec 2011   #3

Windows 7 Pro 64bit build 7601 SP1

Might want to check the temps on the card and pc case as well. Excessive heat can cause issues too.
My System SpecsSystem Spec

16 Dec 2011   #4

Window's 7 Ultimate 64bit

How to troubleshoot video card problems

Check this site out may lead you in the right direction many examples of artifacts colors wrong etc.
My System SpecsSystem Spec
17 Dec 2011   #5

Windows 7 Pro x64

If possible try your monitor on a different pc or a laptop to rule out the monitor. After that we can start looking at you card itself. Are you OC it or you motherboard?
My System SpecsSystem Spec
18 Dec 2011   #6

Window's 7 Ultimate 64bit

If you fill in your system specs that might help with some better troubleshooting or put an attachment of the screen showing the lines, if its a Laptop they are noted for the video chip overheating. Try another video card if you could barrow one from a friend. Good Luck I had one that had ======= signs all over the screen finally RMA'ed the video card problem gone.
My System SpecsSystem Spec

 Purple/blue lines over screen, not sure if driver or motherboard issue

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