I am not in a good mood today - my entire ETH farm is down due to unknown power trip - spent hours going through what is causing the trip - nothing seems to be amiss but something is causing the main db board to trip.
Never had problems with the farm for many month now, until I started to run a few test rigs to do a comparison selling hash at Nicehash instead of mining ETH directly - that project is put on hold for a while until I find the culprit.
Its going to be long day tomorrow with my electrician.
I have a strange feeling... that I have to get rid of them USB risers
I had the same issue when my 7kw farm was being rented on betarigs a long time ago. The problem was that when the farm got rented, the miners would go idle
for a second while the pool/server changes and then go full power , all of them at once, that resulted in brief peak power usage that was obove the fuse amperage.
I solved it by splitting farm into two smaller farms that i then continued renting out with no problems, because they would never again be rented (and went load->idle->peak) at the same exact time.
Dont know if nicehash works on same principle rule as betarigs did tho, but maybe it helps out. It's easy to just say "get higher amp fuse", but it's better to solve the core issue imho.
cheers