So I flashed an ASUS 4890 BIOS onto my Diamond 4890 GXOC. Now it's bricked and won't display anything on the screen during startup.
I borrowed a friend's 5850 so I can reflash the BIOS. I uninstalled the 4x00 drivers and installed the newest 5x00 drivers for W7.
However, when I have both video cards installed (5850 in PCIe slot 1, 4890 in slot 2), my computer hangs in the startup screen - everything, the mouse or logo freezes up and I can't get into desktop. I suspect this is a driver conflict with the 5850 vs the bad BIOS 4890?
How am I suppose to enter desktop to flash the correct BIOS?