Wow 300 watts reduction?!?  How low did you set the voltage?  I set mine to 780 as a test and while the temps run lower & fans are little slower/quieter I'm only seeing very minimal power savings at the wall for some reason..  As in at fixed 450 mhz frequency, 4 watts per card so ~16 watts less reading on my kill-a-watt:


(The typo is theirs in the code.. lol)

I got the fans tweaked exactly how i like them now!  Instead of the annoying way too fast or the ramping up & down over & over, I can basically now set a goal temperature & the fans auto-tune accordingly.  To me this makes a lot more sense than the nonsense they build into the antminers. Wow that code of theirs on github is a mess.

But yeah it'd be cool to know what you changed.

Thx
Bill