Quote from: Undef on July 09, 2012, 07:27:42 AM

Not exactly relevant, but I just finished a crossfire install and had a bear of a time getting them both to run. In my case, I had an overloaded power rail preventing good power from reaching one card.

Just to be sure water is wet and gravity still works: are you sure you are not having power issues? Heat issues? You're not overclocking yet, right?

I have a 650W 80+ Gold power supply, so I don't think I have insufficient power. And I haven't overclocked anything. The only clocking I've done is on the memory which I've underclocked to 500MHz.