85% efficiency? Get a better PSU.
Also would be nice if you have/get a Kill-A-Watt so you can compare calculated load @ wall w/ actual load at wall.
Working on it. And it's in the computer I'm running now. When I upgrade I'll buy a higher quality one.
wow, what programs do you use to set the clock speed/memory/voltage?
For a long time i was running mine at 978mhz 1.043v with MSI afterburner beta
Msi afterburner. I downclock memory in cgminer, because afterburner doesn't like to lower it past 850.
Also what card are you using? I seem to have better luck with the Black Edition cards as they appear to be higher binned.
xfx 7970 black edition. 76.7% ASIC quality