Based off a kill-a-watt I'm pulling 650w from the wall with two miners with a corsair AX860i platinum rated
Nice, so theoretically 3x AM-V1 miners should pull 975 watts according to your readings.
Thanks!
Strongbow: Well, you'd have to use a different power supply because the AX860i is an 860 watt affair.
The larger PSU in that line is the AX1200i and according to their website it should get about 90% efficiency at the 80% load you'd be putting on it.
The AX860i is rated at 92% efficiency at 650w. So roughly, the 3 miners on the larger psu would be 2% less efficient, so theoretically you could be pulling 20 more watts.
860i specs
http://www.corsair.com/en-us/ax860i-digital-atx-power-supply-860-watt-80-plus-platinum-certified-fully-modular-psu1200i specs
http://www.corsair.com/en-us/ax1200i-digital-atx-power-supply-1200-watt-80-plus-platinum-certified-fully-modular-psuNinja: out of curiosity, is that power supply also running the RPI?
The numbers also won't increase by exactly 150% because your'e not duplicating the Pi's load as well, but that's only about 5w, so we can subtract 2.5 from the added load. I'd guess in that case 992 watts at the wall for 3 on an AX1200i. 1.066w/GH including controller. Not bad.
Better than the 1.14w/GH I'm getting with 2 and a pi on a bronze 750w supply. The AX series would save me $10 a month in power but probably not worth the cost considering this bronze rosewill I got for $50, and the AX series costs minimum $200. 15 months for the price of the PSU to amortize and I doubt these miners will stay profitable for even 12.
