Theres a discussion going on somewhere on this forum, but I couldnt remember which one it was. Anyway, I just bought a new i7 setup and did a bunch of research on it yesterday, from what I gathered the p6t can run 2 crossfired double slot cards, but there wouldnt be room for anything else? as in wlan card, sound card, I guess basically all the standard pci slots will be blocked. Might want to double check my info, or someone else here that actually has one will chime in and correct if i'm wrong. Thats what I gathered though.