Crossfire checkers

[jeff77789]

When I play my games, particularly in dark areas, green and pink checkers appear on my screen. I have 2 HD4850's in crossfire and i tried using another connector but it still wont work. can anyone help me?

 

[Maziar]

Test both cards in single mode and see if they work properly or not

 

[megamanx00]

One of the cards is getting too hot and corrupting tiles. Do you have them overclocked? Stress test both cards individually. Use everest or GPU-Z to see their temps.

 

[jeff77789]

One of the cards is getting too hot and corrupting tiles. Do you have them overclocked? Stress test both cards individually. Use everest or GPU-Z to see their temps.

well i only have a case fan on one of the cards, the other one is sucking up the dust from the bottom of the case ill stress test both cards today. i have them overclocked to 700core and 1200 memory which is the max on catalyst control center and what stress test do u recommend?