I bought this specific (asrock fm2a75 pro 4) motherboard earlier this year with the idea that I was going to crossfire a pair of AMD cards. Specifically I was going to crossfire two R9 270X and call it a day. That was until I was looking at the specs of my motherboard and apparently this motherboards second pcie x16 slot runs only at x4. This motherboard says its ready for quad crossfire. WHAT THE HELL? Am I missing something. How can a mobo be quad crossfire ready and only have 1 true x16 pci slot?