Monster machine, and attempting to hook up three monitors. Had it working temp with 3 monitors, received windows message about performance and it recommeded that I upgrade the video drivers. Upgraded and installed current version, lost video on the 2nd card.
12 gig memory
wind 7 64 bit
Driver version 126.96.36.199 12/6/2013
Played around with Catalyst Control Center, could not figure it out, and rebooted and still have the same situation. Windows and catalyst center are showing both cards with no errors reported.