Post
Topic
Board Hardware
Re: ANTMINER S5+ is available to order, 7.722TH/S 0.445J/GH
by
zagamon
on 14/08/2015, 14:40:01 UTC

I don't think you can use only 2x PSUs. According to bitmain's product info
Quote
Do not connect more than one PSU to the same hashing board!

I don't see why not.
As I understand, there are 9 boards, just go 5/4.