Screen artifacts everywhere

[Vaxtick]

Hello, I recently bought a used motherboard for my x5650. My graphics card has worked fine in my other system but when I put it in this build, Boom, artifacts. I tried a different gpu and had the same problem. I also tried all the pci-e slots and different ram slots, is it my motherboard and could it be my cpu? I also tried different sticks of ram to make sure that was not the problem. What could cause this? The artifacting happens on certain colors and shades.
My specs:
Asus p6x58d premium
2x4gb patriot sector 7
x5650 @stock and I still have the problem
Pny gtx 580 xlr8, I also tried a 9500gt I had laying around
1tb western blue hard drive
600w rosewill vllens psu.

 

[captaincharisma]

check to see if you get the artifacts when you go into the BIOS. if they do not show up there then it could be a drivers issue. ifthey do then there might be a problem with the motherboard

 

[Vaxtick]

check to see if you get the artifacts when you go into the BIOS. if they do not show up there then it could be a drivers issue. ifthey do then there might be a problem with the motherboard

Yes, I see the artifacts in bios.

 

[Vaxtick]

Im also starting to see random fast lines from time to time.

 

[Vaxtick]

A ram slot is not working. Probably just gonna return it. And the cpu is not holding any overclocks if i try to.

 

[Vaxtick]

check to see if you get the artifacts when you go into the BIOS. if they do not show up there then it could be a drivers issue. ifthey do then there might be a problem with the motherboard

Do you think it could be the cpu?

 

[Vaxtick]

Turned out to be a bad dvi cable!