Topic: How do you power an Antminer S9 in USA / Canada with 110v? - page 3. (Read 43972 times)

I'm dealing with the same issue here. Going to have an electrician come in and install a separate circuit with a 20amp breaker to power 2 x S9s on EVGA 1600 P2 power supplies.

I wish I knew more but my lack of experience does leave me with some questions I'm hoping the electrician can answer. For example, if I install a 220V circuit, is it ok to use a 110V type power outlet so I don't use any special adapters for the PSUs?

outside meaning just outside the breaker box which is usually indoors or accessible from indoors here in Cali.

Wow!  It seems like mining has more sunk costs than anticipated.   I do know an electrician who may take a look.  It almost seems like running 220v is the way to go, even if I do an ATX supply at first.  It would give me room to add an additional S9 before reassessing.  I only have two unused breaker openings.  Oh boy ... this is kind of like it would be like to buy an old VW bus.  


Yes.


Bummer.


Yes.  I am new. I purchased my first BTC in October, bought an S3 in December and two S9s the end of January.  I am totally new to mining.  I did take electronics in high school - which was a while ago - and remember enough to know I will hire.


Even if I do 210/220v?


This is possible in my situation with a partially finished basement.  I think it's possible.  The only problem is the breaker is in the finished part of the basement.


On the outside?


It's much appreciated.

Each antminer will need to be on its own circuit.
One on one breaker with nothing else attached to that circuit,
The first one on one breaker,
  and another on another breaker with nothing else attached that that circuit as well.

Hopefully this clears up when I am trying to stress.  This is a key way to be safe with using a high power draw in a home.

For reference, a 1300W space heater can fry out a typical outlet switch;  so do not run them on switched circuits unless the switches are meant to handle the load.... Just use a non-switched outlet.

The antminer will be stress on the power lines for older buildings in the US;  and you could end up with issues if you aren't careful.    A touchless thermometer (infared or FLIR) are best to seeing how the outlets/cables are when you have it up and running.

Ideally, you want the power draw to be as close to the source as possible, simply to have less that can go wrong in the end.... but its not 100% necessary to do that.  Just a smart thing to do.  This is why a small conduit and outlet near the main breaker is what people often do.

These guys are giving good advice.  It would be smart to find someone who knows enough to check the wiring installed and see what it's rated to.  should be stamped on the sleeve.   Or if you bring in an electrician for advice, you could do that as well.

The power coming out of the power supply to the miner is relatively safe.   You really only stand a chance on hurting the power supply or miner in that regard.  Just don't open up the power supply, or use dodgy power cables.  You should be safe from the mains voltage if you aren't messing with it.

^ Ja.
Please do also remember the arc-flash hazard involved even with 'low(ish)' home power feeds of 100A.
http://api.vidyard.com/playbackengine/YUZpsL7LDv1iCc4qAycTOw/?iframe=true

It is MANDATORY that the main power be turned off before opening a panel box. And as the above graphically demonstrates, do not wear flammable clothing.

Listen to him!


@ op  not to be insulting   but your questions indicate you are new at this....


 110 power lines can shock.  220 can kill.

that sounds correct  does it not?  Well it is wrong.


110 power lines can kill you and 220 can kill you more easily.    < This is correct !!!

Be careful.

In case of modifications, I would suggest a qualified electrician to inspect the existing wiring first.

I think you should not use 110V for miners because it can reach the limit AMP on your wire. You only need to buy another breaker about 10USD and connect the white (neutral) to your breaker. It can double your power.

If you have breaker 20AMP, when you run 110V, you only get 2,200Watts, that means only 1x S9.
When you install 220V, with the same breaker, you can get 4,400Watts, that means you can run 3 x S9.

Those video will help you install breaker:
https://www.youtube.com/watch?v=BPzzL9OLwyw
https://www.youtube.com/watch?v=k95_Rnjr_DY
https://www.youtube.com/watch?v=bx7alt0gvLM

**NOTE: ALWAYS USE 1 HAND TO DO THE JOB, KEEP THE OTHER HAND ON YOUR BACK. (Electric shock is not fun)

YES, HUGE problem!
1st, I assume you mean using 2x of the ATX supplies to run the 2x miners right? A single supply will not run 2 of them.

As for the outlet, since each s9 will draw around 1,350w that puts the  combined load the outlet sees @ 2,700w. Fuses/breaker WILL trip in a heartbeat...

Especially when powered by 110v EACH miner MUST be on its own circuit. As in no toasters, microwave ovens, hair dryers, ect. sharing the circuit.

Thanks for all of the input.  I think I will probably go with an ATX and not server PSU with your help.  

It looks like people may run a single circuit, even 110v, for their miner(s).  I'm trying to save money as I only have two S9s that I want to turn into a multi-billion dollar business (don't we all  ).  I have a limited budget.

Is there anything wrong with plugging two S9s into an existing outlet using a 1600W ATX?  If spending additional money, would you either put the money into the efficiencies or dedicated circuit?  Any chance of blowing the hashboards if not done correctly?

Thanks a BTC!

NOTE: I've added a poll and appreciate any submittals.  I admit, I currently have my S3 plugged into a power strip  

Thanks! I've had my eye on the EVGA and LEPAs. Any noticeable difference with price paid per month per unit in electricity with higher efficiency PSUs?


Hmmm... I have two S9s with the Feb 20th shipment.

Thanks for all the details in your response. I'll have to read carefully on your experiences.


I agree with safety. Where I live, it's not only my house but also my neighbor's that we concern ourselves with when it comes to fire.  In the countryside you can basically do as you please in Montana. In the City, we are allowed to do certain aspects of wiring on our own, e.g., running cable that will be reviewed, but must it be certified in order to be compliant.

You would not like my state New Jersey   USA.

If you own the home  and live in it (i.e. do not rent it)    you are allowed to wire it yourself.

I wired my entire home  back in the 90's

We had aluminum wire  due to a copper shortage during the Vietnam war.

Many ares in the USA had aluminum wiring  lots of house fires.

When I purchased the home I found it need a full and complete wire job.

So I did it a circuit at a time.

I did hire a licensed electrician to install a 150 amp 32 breaker box.

If the op is in the USA.  he should have 2 hot wires into his box  110/120 each.

 He can do a 220/240 circuit .

 I have 3 in my home, one  40 amp  for the central ac  and  two 30 amp for mining.

Yes. That is why it is in most cases to give the job for a professional electrician who knows what he is doing.

I'm glad here in Finland laymen are not allowed to do electrical installations.
You need here a qualified electrician to do the installations.

Yeah, but these days most know an electrician that could do the work for them    Just a recommendation for the sake of safety on knowing the wiring between the high-draw device and the source is up to par.

If he hires an electrician to visit him, then he might as well have one two-pole phase-to-phase 208V group installed and use the Bitmain APW3 PSU.

Ok, if you want to power it on a single 110V circuit;

Use a power supply that is rated ~1600W to be safe.  There are several brands, Just make sure that the PCIE portion of the 12V rail can support 1400W.  For instance I have a Cooler Master I used on an S7 (about the same wattage draw you are looking at), and I used it on a 120v circuit fine.  I just had to re-pin the two 8 pin CPU plugs into PCIE plugs so I wouldn't overload the single 50A rail that supplies ALL of the PCIE ports.  The extra 50A rail only powers the CPU and the power supply would fry without this mod (it did fry, and the rest of these power supply models I was using were re-engineered to not let it happen again)


::Advice::
Run the antminer on it's own circuit.  I.E.  Not just one Outlet;  if any other outlets are turned off when you cut the breaker the antminer is on;  Then those are on the same circuit.  Do not run this through a GFI plug, or behind one on the same circuit.  You will have problems if you do not heed this warning.

If your power supply wiring or outlet its hooked to get warm at ALL... you are waiting for disaster.

What is best, is to have an electrician use adequate gauge wiring to add a breaker for a plug specifically to hook up the antminer only.    One 20A 110v breaker;  and one outlet.  If the electrician over-spec's the wiring gauge between the breaker and plug, you will be sure to not have a failure with the wiring.

One circuit:  one Antminer... when it comes to running them all on 110V.   Be smart, not on fire.  Trust me;  I ran the razors edge with an S7 for the better part of a year.  Melted many plug ends and a few outlets.  But;  it was what I had to work with (at that time with that machine and location) and the circuit HAD to be shared.

I suggest avoid step up/down converters.  you are adding inefficiency.  Just use one supply or the other.  Most supplies nowadays can simply just take a 250v input and auto-sense.

The main issue with server power supplies, is they usually supply one amount of wattage when running on a 250v supply, and another wattage when they are running on 120v.  Such is the case with a supermicro supply I have;  it does 1444/1000w respectively.  I personally don't know the breakout for it, and haven't (yet) been able to get it to power up (there's an enable pin just like an ATX supply) and plus, the card-edge connector is quite unlike a LOT I have seen in the past... so id have to make a custom adaptor with sockets scrounged from an old ISA slot.

The idea about step-up transformer might not be economically ideal.

There is good ATX PSUs available for 110V

Like Phil said, there is Rosewill 1500W for example
Rosewill TOKAMAK 1500W Full-Modular Power Supply (80 PLUS TITANIUM Certified)
https://www.newegg.com/Product/Product.aspx?Item=N82E16817182384

And also there is EVGA SuperNOVA 1600 G2 120-G2-1600-X1 80+ GOLD 1600W
https://www.newegg.com/Product/Product.aspx?Item=N82E16817438033

...
remeber...
if you are planning to use a  server power supplie, you need a third part object like breack board...
hese some examples...
https://bitcointalksearch.org/topic/wts-custom-server-psu-breakout-boards-1200w-1300w-2000w-2880w-4kw-738527

You can also use a step up /down converter.  I can say they work great but I've only used these temperarily (maybe for two weeks at a time while I install 220v.

search on Amazon for:

Goldsource STU-3000 Step Up/Down Voltage Transformer Converter - AC 110/220 V - 3000 Watt

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No server supplies need 220 volt. There are exceptions



Rosewill makes a titanium 1500 watt psu.
You can also try two rosewill quark 1000 watt psu they were on sale at
Newegg still are on sale at 120 each .

I think sidehack has a 900 watt server that runs on 120 volt