GeForce GTX 560 problem

[theisabild]

Hey Guys!
So about 2 years ago, my GeForce GTX 560 started having this problem, which is shown in linked video. It suddenly started to occur when I was playing Watch_Dogs, but it happened in all games I played. ½ year later, it died and i replaced it with a very old graphics card from a older computer. I kept the the graphics card that died and today I decided i might aswell try the oven trick and it worked, but the orginal problem is still occuring and I'm getting pretty tired of it now. Do any of you have a fix for it? 

Specs:
Windows 7 Home Premium
GeForce GTX 560
Intel Core i7-2600 3.40GHz
Power Supply Corsair GS700

I really hope you guys can help me, thanks!

[don_svetlio]

it's dead

[Jumper118]

that is artifacting. it will probably die soon

[Energycore]

If it wasn't dead before (perhaps you could have returned it on waranty), well it's dead now, because putting graphics cards in an oven kills it outright

 

But you have a zombie graphics card now, it will work for some 4 weeks.

 

Edit: worst english i've ever wrote

[Tieox]

I had a 7900GT with this issue, it's dead.  

[TheRandomness]

Add more voltage and down clock the VRAM as last ditch attempts. Whatever chance it had, you removed it by putting it in the oven. 

[Cracklingice]

Lower core and vram speeds yet?