Try switching the power plugs into the hashing boards, and see what happens. If the problem moves, then the issue is the power supply.
The problem is not because of the PSUs, we tried with different PSUs, like i explained
okay lets start right here.
you have s5's correct?
every psu you use is a bare minimum psu. they all should be able to supply enough power yet they act like they don't.
So first question is on each psu do you :
use 4 cables from the one psu into 1 s-5 or do you use 2 cables from 1 psu into 1 s-5?
Next question is the gear in different locations with different internet. Or all in the same location?
Next question do you mine on the same pools or different pools?
3- Different Pools.. Nicehash, Antpool, Bw