Help Crossfire bsod!!

[hgen]

OK I just crossfired 2 4870's, one is palit the other gigabyte both 1gig. The palit is a bit faster ie. not the same mem clock etc. I'm using catalyst 11.11.

In catalyst there seems to be no problem the mobo and win 7 64 is reading it fine but when I play a game i get the BSOD!

What do I have to do to get them to work? Thanks!

 

[RavenSEAL]

Use MSi afterburner and set them to the same speed to begin with, also, what's your power supply?

 

[hgen]

Thermaltake Toughpower 750watts.

 

[RavenSEAL]

Hmmm...not sure what it could be.

 

[hgen]

Ok problem was the Palit Card. It loads in the 2nd slot and win 7 has it in running perfectly in devices with no exclaimatons but run it on its own it does not give a screen. Run it in crossfire and it causes bsod!

Should I try to rebios it see if that will reset it somehow? Or any other ideas to look at?

 

[RavenSEAL]

Sounds like it's dead. Have you tried to fire it up in non-CF mode?