can anyone advise here or on PM
my latest S9 just lost a board in other words it was working fine for about 24 hours then i made a psu change and it just stoped hashing. two interesting details, one, the miner detects the board but no its not hashing at all GH/S(RT) shows 0000, two, if i connect that particular board by itself it does hash, but only by itself.

any input or advice will be greatly apreciated

i tried diferent psu
and i tried changing resetting all settings
same result