Thanks guys, I will be doing tons of research into mining before buying anything. I really just wanted to know what to expect from crossfire and heat output. Mining sounds fun but gaming is my primary concern. I have all the fan slots filled in my Phantom 410, but I'm not sure it will be enough to cool 2 of these.
Yeah these things get hot, if your not watercooling, They might be a little much, mining produces a LOT of heat, like you won't need a heater in your house hot