I just got my 990fx crosshair board and I did the most recent bios flash. I'm not sure if this is the reason for the issue or not as I did not play with the computer until I flashed the bios. Every time I enter sleep mode. My computer will not fully wake up. The fans all cut on as well do the lights in the case, but the keyboard and monitor are unresponsive.
Also to make matters worse, every time this happens I have to restart the computer. Upon restart all my bios settings have returned to default.