I finally got a 5GHz validation on my system. The only way I could get it done was to boot into Windows @4.92GHz 234X21 then use SETFSB to up the BCLK to 238. I tested SuperPi a little more and was able to get it to complete @4.96GHz.

5011.4MHz CPU-z validation link
http://valid.canardpc.com/show_oc.php?id=652589