Running SLI with mixed card vendors?

[mentalcrisis00]

Hey all

I've had an EVGA 7800GT for 3 years and I don't really want to shell out $150 to upgrade, I have a big Ireland trip coming up and most of my money is going into that. It looks like the 7800gt's are down to $30-$50 on ebay and wouldn't mind trying SLI with it.

What I'm wondering is do I have to match the cards up even if they're both 7800gt's? Would it be bad to mix my EVGA 7800gt with one from XFX? I've also heard that it's a good idea to even match the P/N number on the cards up, is this true or just a myth?

EVGA 7800GT 256mb
P/N: 256-P2-N517-AX

-Ray

 

[Keysplayr]

SLI cards must be the same in model name (7800GT and 7800GT). Brand, core, clocks, and memory can be different, but the model must be the same.

 

[mentalcrisis00]

ah cool, I kind of figured the model had to be the same. I just read somewhere that before forceware 80 you had to match the cards exactly but now it's not necessary. Thanks