Mining with neoscrypt shuts down rigs and trips circuit breakers.

[holda29]

I have problem with two rigs of mine. Both are 8x ZOTAC GTX1070, 8 GB RAM, one with ASROCK H110 BTC+, other with Biostar TB-250+. The PSUs are three Fortron Aurum 850 Pro, one EVGA 850 GQ. The problem is mostly with Neoscrypt, when ccminer (I tried like 10 versions and intensities) starts, PSUs start to emit clicking noise and after a while the rig shuts down unexpectedly, sometimes it even trips circuit breakers. Once the PSU literally exploded, thats why I have one different PSU. When i measure the power draw, it is around 500 W for each PSU. PSUs are connected with Add2PSU, I tried to start secondary PSU only with PS_ON, but no change. Both riser and GPU is connected to one PSU.

[0xcosmos]

there is something wrong with the psu or the hardware
i will recommend you to get it checked out
it is not the algo that is causing problems
it is hardware

[bathrobehero]

Neoscrypt draws more power than most algos which your setup can't handle. That's most likely why your breaker trips, check how much amp the breaker is rated and how much you're pulling. And if your system is overwhelmed, or if there's a brownout, the rigs will pull more amps to compensate, reaching the breaker's limit

I don't have experience using multiple PSUs so I'd guess it's just that you're pulling too much juice.

[Sevarchik]

Maybe your psu cant provide the required power.
to verify this you can uplug one by one gpu and run mining, try disconnect first form one psu then from other

[pbuva]

YOu can try remove 1 GPU from each PSU and test with lower consumation on them.

[bathrobehero]

Maybe your psu cant provide the required power.
to verify this you can uplug one by one gpu and run mining, try disconnect first form one psu then from other

He could do the same with software only, as in only mining with X cards (-d option) or if he would lower the power limit on all of them by like ~10-20%.

[malthrax]

... three Fortron Aurum 850 Pro, one EVGA 850 GQ... around 500 W for each PSU...

Are all four power supplies plugged into the same 120v/15A residental circuit?  
If so, you're drawing 2000 watts through a breaker that should have tripped when you hit around 1800 watts.

2000W / 120V = 16.67A > 15A circuit breaker

[holda29]

As I mentioned in first post, there is around 500 W on each PSU, they should be rated for 850 W. But of course I tried it running only with one PSU with 4 cards, but still the same, double PSU is not the case, not mentioning I have other rigs running that way just fine.
I will try to run it with only one GPU.

There is 230V/16A for each two PSUs, meaning 3680 W for each rig and 3x 230V/32A (22  kW) for entire house.