philipma1957,

Any idea on the efficiency of the power supplies?  I'm kind of wondering if we cant' drive these using a more efficient PC or server PSU with a breakout board.

Here's a fun graph, my power consumption on 3 units over the last 3 days.

https://imgur.com/yn9tf8Y

This kind of makes me wonder if these can't run using 70-80 watts with the right PSU and winter temperatures.

I also got some of these in marcotheminer's group buy.