I would like to save myself some money and go with the epox board for my opty 165, but after reading some reviews I've noticed that a 7800gt (card I'm getting) blocks out a PCI slot. I NEED 3 pci slots, so can someone comment on this problem. If this does indeed happen, then I'll just spend the extra money and get an asus sli premium or dfi sli-dr expert. But this is my first build, and I do plan to OC down the road, so I don't know if I want the hassle of a DFI.