View Full Version : How do I overclock SLI cards?

03-20-06, 04:38 PM
I'm having trouble getting a overclock on my 7800GTs.. I install coolbits and go to set the clocks but it doesnt give me a option to set it on both clocks. When I overclock it using coolbits it just locks up my system and I have to boot into safe mode to get into windows.

Rivatuner does the same thing...
what else should I try?

03-20-06, 05:49 PM
When you are running SLI and are OC'ing, the clock/mem freq you set for one is for both.

Son Goku
03-20-06, 05:57 PM
What he said I would imagine... The cards would have to run with a synchronous core/mem clock I would imagine...

It's also possible that one of your cards isn't capable of the clock you're trying to apply. Given that both cards are running together, if one is a poor over-clocker, the other card isn't going to be able to clock higher... Best case scenario would be the best OC you could get from the worst (in terms of over-clocking ability) of the 2 cards...

There might be some issue in the drivers with this and working the 2 cards together which I'm not aware of, but without 7800s can't speak from experience. I would imagine that if one of these cards fell out of sync with the other, timing problems could result... But can't say that is what would be going on...

03-20-06, 07:07 PM
Yeah, I'd have to agree with Son Goku.