As far as I can tell from the specs, this combination should work, but I'm getting the long-short-short beep upon powering up. The card did post on another system, so I figure it's the mb? Updating the bios to 799f1p15 didn't help.
what power supply do you have (volts/amps if you can find them )
are you plugging into the yellow port(it should only fit into it either way )
there shouldnt be any compatibility problems because you have the PCI-E 16x slot they want... this probaly isnt the problem but make sure you onboard isnt running