I just got another radeon HD4850 to use in my computer with crossfire. I put it in my motherboard( DFI Lanparty DK P45) and it seemed to work fine. In CCC it recognizes both GPU's but it does not let me choose which one i would like as primary. Is there a way to select the gpu i want as primary or does it have to be on the top pcie slot of my mobo?
