I just bought a second Radeon HD4830. I had a Sapphire one before, now I bought a XFX. I have done everything I can do to get it working, but it's not working! Firstly, I got a motherboard that supports crossfire (Asrock A770CROSSFIRE), got 2 cards, and got a crossfire bridge(tried 2 diffrent ones). I have tried both old and new drivers, installed them while using one card at a time etcetc. I have tried to flash the gpu bios to match, still cant get the Crossfire tab in Calatlyst to show. In GPU-Z I can find both my cards, in catalyst I can find both cards, but the second card is "Disabled Adapter" and is locked at PCI 1x. Any tips? Have been trying to fix this for a week now, still cant get it to work!