Hello everyone,
I have running two graphics cards, Nvidia GTX460 and AMD HD6850 on Windows 7 sp1. I use the 460 for my monitor, and the 6850 for a little mining. Both work fine together. I recently purchased an XFX R9 280x, however, I can't seem to get it to work. After I install, along with the GTX460, it's recognized by device manager, but it does not show up in the video resolution dialog window. GPUz identifies the 280x, but clockspeed and voltage don't show. Also, when installed as the only card, it shows the boot screen, but after post, the screen goes dark, with a lonely 0_ showing in the lower right. The code on the board shows 00. The computer continues to load windows, but the monitor remains the same. I've uninstalled and reinstalled drivers ad infinitum using Ccleaner and DDU, updated the BIOS, cleared the CMOS, and tried different PCIe slots. I even did a clean windows install. Any help would be greatly appreciated.
Board: DP67BG, core i7 2600; 16g RAM
Board Version: AAG10491-400
BIOS Version: BGP6710J.86A.2209.2012.0717.2302
Power supply: Thermaltake - SMART Series 850-Watt
