I am looking to run 2 HD 5870's in this machine. I already have 1 card it is a ASUS V2 ( the one with 1 DVI, 1 HDMI and 1 display port). I cant seem to find another card that matches mine exactly. I can find the V1 card that from my understanding is longer and has 2 DVI ports and I can find the eyeinfity version that has all display ports. Can I use any of these cards in crossfire or do I have to have the one that matches my card exactly? And also I have a 800 watt powers supply and from my understanding that should be plenty of power but just wanna make sure.
You can use any other 5870 that you can find. As long as it is the same gpu, they are completely compatible. This is actually a farely large misconception that cards must match exactly for them to crossfire. As for the PSU, 800w is plenty of power for those two cards.