Anyone have SLI but cards are different brands?

[vegasgmc]

I have an Evga 7900GT CO but havent been able to find another one for SLI. So I got a Gigabyte 7900GT. It doesnt work. When SLI is enabled its BSOD galore. I was just wondering if I missed something because you're supposed to be able to use different brands with nVidia drivers 80.** and above. I know I can flash the BIOS of one of the cards but I dont want to void the warranty.

 

[F1N3ST]

The clock speeds differ, the eVGA is overclocked, that might be the problem.

 

[F1N3ST]

It also could be your PSU isnt strong enough.

 

[tifc8lraz]

Is it even possible to mix brands? I always thought the manufacturors made their cards with slightly different specs.

 

[vegasgmc]

The KO's are overclocked. This is a CO. I also have a 500w SLI PSU. According to nVidias site you can use different brands with the latest drivers but it seems to be troublesome.