need electricity support (usa)

[wuzamarine]

I need more juice for my 3 knc asics.
so I installed a 40 amp breaker with this wiring configuration 

But my 20 amp breakers on my sub panel fail to initialize.
I am miss wired somewhere, but can't figure out where.
The gfci breakers have 2 screws, one copper and one steel. Copper has positive and steel has neutral. That's the only idiot place to screw up.

[antminer2014]

Why use GFI instead of normal?

[Prelude]

And why 120V instead of 240v?

You'll need to double check everything to be safe.

[notlist3d]

And why 120V instead of 240v?

You'll need to double check everything to be safe.

Most likely because of breaker.  Sadly most US breakers use 120v.  You could switch the breaker out though.  Be carefull though if you don't know might hire someone.

[CashWWWeb]

BudMiner:  How much would the cost be to add a sub panel to the main electrical panel?  I am think a 60 amp to go with the 100 amp main panel.  I can call a electrical contractor, but would like to hear if anyone has done this.  Thanks

[philipma1957]

Why use GFI instead of normal?

yep if you pull the gfi out and swap in standard you may be good.   gfi are funky and may not work in that setup.

you may have opened the neutral and that will fuck shit up.

[cp1]

Yeah why don't you just run 40A 240 to a PDU?

[EVilaghy]

This is probably late but I am just having my basement wired with 2 150a sub panels and a 200a main panel just for my miners allowing me to run 112 S1s.  Of course I"m a little behind but everything will be stable since I was blowing fuses left and right before.  I use 750Watt Dell Server PSUs and can run 2 miners per.  I can only put two per breaker so you can imagine how many 20a outlets I have now.

I don't know much about your machines but We have been doing math for two weeks now trying to figure out what works

[DirTdel]

You have it fubar'd. Hire an electrician and get it done to code before you burn your house down and find your insurance doesn't cover fire from non inspected electrical work!

[Trends]

Did you remove the small jumper (tie) bar on the duplex receptacle I think you are using?