Re: ANTMINER S5+ is available to order, 7.722TH/S 0.445J/GH

[2 is fine, still only about 165W per PCI-E.

So each of the 9 hash boards draws about 330 watts apiece?

So the remaining 500-sh watts is for the fans and the controller?

Itll be about 90W for the fans, 20W for the controller and the rest is PSU inefficiency. I calculated with 90% PSU efficiency so at 93 it makes it 170W per PCI-E when using 2 a board.

Do you think it's going to work at 90% efficiency with their own PSU power supply APW3-12-1600-B2 https://bitmaintech.com/productDetail.htm?pid=000201505040743496917U7kGsCm0694 (Note they claim 93.8% efficiency)

Or is that thing just a POS under normal working conditions and we should stick to normal computer PSUs?

Its pretty accurate, single voltage PSUs tend to be very efficient and the power measurements are taken from the wall.