graphic card Need help in Diagnosing and solution

[YoloKing]

I have been facing problem with my computer lately, when i try to boot it up, there are various distortion and lines across the whole screen and when the windows boot animation(WINDOWS 7) completes the computer just crashes and blue screen with error appears.I bought a new DVI cable to change the old DVI cable which was linked to my graphic card(Nvidia GTX 560) thinking it would solve the problem but it didnt solve the problem. Then I switched from the the DVI link from my Graphic card to my onboard graphic(Intel i3-2100) which is a VGA output and the computer works just fine. But i cant use the graphic card. 

Is there any solution to this problem ? Or is the graphic card useless now or can it be repaired ? 

Thanks in Advance 

[DevilishBooster]

Sounds like the GPU is bad. Try to borrow one from a friend to test in the system, and if it works fine then you know you need to buy a new GPU.

[TheSuspect]

Dead graphics card, sounds like

[YoloKing]

Thanks , I guess I will bake the card just like linus did , and hope if it works

 

[Quaker]

The graphics card may be just not fully seated in it's slot, or the contacts may be dirty.

Try removing the card and reinserting it, before you bake it.

[YoloKing]

UPDATE: the card worked after baking it for about 15 min