Quote Originally Posted by adpr_02 View Post
Nop, downclocked it to below stock, and still got the artifacts. I then tried lowering the voltage to 1.2v and still got the artifacts.... Raising the voltage to 1.32 made me get a black screen very late in the game.... does the OVP mod actually work?
Are you using the stock cooling? I would take off the heatsink and check for good contact. I've had 2 older cards that acted like yours both had issues with the HSF not getting good contact.

Yes, the mod works but it's for OCP (Over current protection) which kicks in waay before OVP.

A really easy way to check if it may be a heat issue is to turn off your computer for a few minutes to let the card cool down. Then fire it back up and start a bench loop. Time it to see how long it takes to artifact. After you've timed it from a cold boot try it with the card already warmed up. If it artifacts quicker when warm you know you have a heat issue.