Can't get stable overclock using more than stock voltage. Faulty card?

[Kresler]

I recently purchased an MSI 7950 to replace my old 7950. Although every time I try to overclock the card using higher than it's stock voltage games will constantly freeze or I get a black screen and the game crashes. I also noticed recently that I was getting flickering textures in some games. Although I had the same problem with my other 7950.

Could the card be faulty? I'm starting to worry that the PCI 3.0 slot on my motherboard may be messed up.

 

[Deleted member 217926]

There is nothing faulty about it if it works at stock, out of the box, speeds and voltage. There is no guarantee that anything will ever overclock.

Overvolting can damage a card as well.