UPDATE!

Had more time to play around with these miners. Basically the ASIC CHIP cannot run at all under 0.70 Volts. I tried 0.67 Volts and its impossible to make it run under any frequency without getting huge hardware errors. 0.70-.71 Volts is the limit on these chips.

I have managed to get it to run on 181Mhz frequency and its very stable, no "X", and gets like 0.004% hardware errors. It hashes around 915Gh/s and uses around 830Watts of power at the wall. So 0.90Ghs/W and the stock would of been 1.1Ghs/W using the same hashrate.

Runs cooler and will pro-long the life of the stock Enermax 1000W PSU.