Topic: How do you power an Antminer S9 in USA / Canada with 110v? (Read 43900 times)

As long as you are on a proper rated circuit and not overloading it; and you config your TPLink AP to be a wireless bridge, you should be fine.... im pretty sure that's what you were mentioning.

When you are first running it;  pay attention to the power cable for the PSU, and the PCIE cables going to the miner.  They should not warm up AT ALL.  If they are;  you are doing it wrong;  either overloading the PSU, or the circuit.

Most kill-a-watt meters have a built in voltage sense at the plug, so its also a good thing to note voltage while on and off;  If the voltage is on the low side to begin with;  Be cautious and do research on that subject on how the line voltage effects the operation of voltage transformers and their wiring requirements in electronic devices.

How can low Wall outlet voltage be bad?

S9s are not wireless, you need a DHCP enabled Ethernet cable plugged into them.   Power wise, they max a typical 15 amp US household circuit.  Doing the numbers with a 13.5TH unit:

1323 watts plus 7% overhead given a 93% efficient power supply = 1323/0.93 = 1422 watts.

Presuming you have 115Vs available at the socket:  1422/115 = 12.36 amps.

Your breaker panel should have a 15 amp circuit breaker, which is rated at 80% continuous load.  Thus you can pull 15*0.8 = 12 amps continuously. 

If your lucky enough to have 120Vs available at the socket:  1422/120 = 11.85 amps.

As you can see, your right on the edge for what that breaker can support.  Obviously adding another 50+ watts for a 14TH box just pushes those numbers all the harder.

DO NOT replace your 15amp breaker with a 20amp breaker unless you want to potentially burn your house down.  Of course, if your in the rare house that has all the sockets wired for 20 amps, your golden.

Note this needs to be a dedicated circuit with nothing else on it.  If the circuit is shared for the room, you might, for example, pop the breaker by turning on the room lights!

One fairly common approach to this problem is to setup your mining in your utility room, if you happen to have one with an unused electric dryer connection.  Those are 220V and typically 30 amps.  You would need to make (or have an electrician friend make for you) and extension cord that plugged into that outlet with a few 220V receptacles on it.  You could easily support (3) S9s on that and perhaps (4).  Dryer circuits are always dedicated.  Another option is to use a 20amp dedicated circuit in a garage what was setup for a refrigerator, if that happens to be available.

So... once you figure out your power:  connect your power supply to the S9.  You MUST connect all 10 ports (3 per hash board plus the controller).  Place the unit where it can freely get and expel air, plug in your ethernet cable, and turn on your power supply.  You will hear the fans spin up quickly, then the unit with cycle for 10+ minutes figuring out the best hash rate per card.  While that is going on you need to figure out what address the S9 was given by your DHCP server.  If you don't have access to your DHCP server, you can use free tools like Advanced IP Scanner v2 to find it.  It should show up with a name like "antminer". 

Once you know your IP address, you can web over to the box.  Just type in that address (like 192.168.1.53) in your webbrowser and you should be greeted with a userid/password prompt.  Enter "root" for both and you will be in the control panel for the S9.  Go to the Miner Configuration tab and enter your mining pool information there.  Once you click OK, you should be good to go.

Note that all Antminers are configured out of the box to mine for Bitmain using your investment and your electricity to do so.  Setting them up to use your mining selected mining pool and credentials is a top priority.

After 10-20 minutes you will hear the miners running at full speed and the Miner Status panel will start to show the hashrate and ASIC status for every card.  This takes a bit after powerup, be patient.

I've found Fed-Ex to be cheaper than UPS.  It does get cheaper/tracking# with Fed-Ex as well.  I like my order of 80 cost me something like $350 in Customs fees.  Fed-Ex delivery guys also call me about 20 minutes before they try and deliver - but that might just be because I'm rural and a 1/4 mile from my gate.  That said, UPS delivery people were like "tough shit", and just leave a sticker.

I am getting S9 delivered today. It was shocking that UPS wanted additional $110 for Customs fee but I have no choice.

I bought an EVGA Supernova titanium(1600 W) and TP link Network range extender.
What I understood from reading this thread is that each miner has to be on its own circuit.
Is there any thing else I need or need to do before I can start my Antminer?

I am complete newbie to all this.  Any input from the experts is appreciated.

Thanks

Hi guys, sorry to piggyback off of this thread but it seemed like a good place to ask. If running 220v, the s9 draws about 7A so if you have a 200A panel in a house is there any reason why you couldn't install a 100A subpanel and then have room for around 8 S9s? If that isn't the case, could you explain why that isn't possible? Thank you.

You are talking about a nearly $500 PSU with average efficiency. Take that money and pay an electrician to run a proper 220v circuit, buy a $120 server PSU with more than enough power for the miner and then never worry about your setup again.

Why are people so afraid to just hire someone to do the proper electrical work?

So as long as you have it on one circuit per antminer, you can still use the 110v with the EVGA SuperNOVA 1600 shouldn't be a problem?
would u notice a loss in hashrate if not on 220-240?

All,

I have read every word of this thread, along with research of my own.. I am currently in a decision of housing the miners at my house or potentially considering a 1/2 rack at a colo.

I keep seeing everyone say, only 1 S9 per circuit/breaker.. Clearly, this does NOT scale for home mining..  If your plan is to run a single miner, or MAYBE 2, sure, that is doable, and most breaker boxes can A.) handle 2 extra breakers and B.) have enough left over amperage to handle 2 S9's without fear of tripping the main breaker into the house, etc..

I read one post where a guy was running a 220v/30amp breaker at the box, and had two S9's hanging off that, and looking at the math, could also run a 3rd on the same circuit without fear of melting or exceeding the rating.  I'm no electrician, and will absolutely hire a professional should I decide to mine at home, but having 3 miners on 1 properly-sized circuit seems much more scalable if you are trying to build a mini-farm at home.  I've seen video after video of plenty of people mining at home with 12-15 of these things, so I know it is doable.  But I doubt they have 15 individual breakers and 15 separate receptacles.. Some i've seen connect a few to a properly rated PDU off a twist lock 220 connection, etc..

I know at a colo, A.) I wouldn't have to worry about noise or cooling, but the monthly commitment would be quite a bit more than at home, even after the S9's add up on my utility bill.  B.) would be much more scalable once I grew to have enough hash power to offset that monthly cost.

I am trying to get some things in place before mine come in February '18, so any advice would be appreciated.. I don't want to hear "dude, did you search the forums?" lol.. Yes, several forums, and other places.. I would never try this myself, would absolutely hire an electrician, nor would I want to put my home at a fire risk.  Main reason I am looking for opinions is, based on the math, your 1 S9 to 1 Breaker isn't required.. Best practice for 1 or 2, sure, but doesn't fit a model where you want to expand.

Thanks in advance,

Matt

I’m in a similar situation. Two antminer S9 and two apw3++psu. I plugged them both into only US 120v outlets on separate circuits. They seemed to work great and ran just fine for nearly a week but I was becoming increasingly paranoid that I was going to burn my house down to the point where I couldn’t sleep so I just unplugged them for the night. Tomorrow I don’t know if I should sink $500 into two new power supplies or if it would be cheaper to hire an electrician. Do electricians have to come inside for something like this or can they just do it at the box ‘cause my house is a mess and I need this solved fast.

I am new to mining Just ordered my 3 S9's for new batch:

Well I have Electric dryer outlet ( 220~240 volt / 30 amp breaker - 4 prong Socket )
I want to run at least 2 S9's on it
Should I order this

https://www.amazon.com/dp/B00SOYBRCE/ref=asc_df_B00SOYBRCE5293254/?tag=hyprod-20&creative=394997&creativeASIN=B00SOYBRCE&linkCode=df0&hvadid=167125192708&hvpos=1o2&hvnetw=g&hvrand=16491355410385272625&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9026847&hvtargid=pla-340511534324
and connect my PSU' to it ?

Or

I need step down transformer which is around 5000 watt to 110v output

https://www.amazon.com/dp/B007YK55OA/ref=asc_df_B007YK55OA5293256/?tag=hyprod-20&creative=395009&creativeASIN=B007YK55OA&linkCode=df0&hvadid=167141218295&hvpos=1o18&hvnetw=g&hvrand=7914984236546052618&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9026847&hvtargid=pla-305850161251
and connect my PSU's to output socket ?

Which one is the better option ?

If some one has better idea Please suggest me.
***Yes I have very little knowledge of electrical wiring and I cant mess up with it I live in a apartment
Need 24/7 operation without worrying 

What is your setup with this dedicated circuit? Can you easily convert it to a 220v. To do that you need a spare breaker space beside your current 15 amp breaker.
If you could do that I would suggest do I g this and putting in a 20 amp 2 pole breaker ( or 30 if you plan to expand).
You may also want to consider just putting in a single pole 20 amp breaker, to atleast give yourself some wiggle room. I assume when you say dedicated you mean it only has the one outlet and you are only going to run this miner on that circuit.

If you chose to keep running on the 110, are you in Canada or the U.S.? There are a few companies you can order custom cables from. You just need to know what ends toy need at the psu side and outlet side.

a hot power cord is a bad sign.... 

The miner itself does not get hot, the chips actually run pretty cool between 65-70 degrees.  The aluminum case is cool to the touch.  Just my power cord to the wall is hot.

I've looked on Amazon and do not see a distinction between heavy duty and normal power cords.  I'm not sure what I'm looking for, to be honest.

You can look on Amazon for heavy-duty computer power cords - but - from everything I understand about this - you don't want to be running like this. Have you actually tested your voltage? Is it 110v or 120v? How about your wattage draw on your setup? If 110v with 1400w draw and 10% extra for plug connection - you are drawing ~14amps. If 120v at 1400w your are pulling ~12.83amps. Both of which are above the 80% max for breaker capacity that you should run at (14/.8=17.5amp and 12.83/.8=16.04amp). This makes your miner less efficient and runs hotter and will kill it faster. Depending on the size wire from your outlet to your breaker, it could be hot like your plug wire is. I've heard of people actually melting their outlet from the heat. The outlets are usually rated for a similar amperage too - probably in this case a 15amp load - but when constantly running it at a high capacity close to their rating - they get hot.

I am getting ready to set up an S9 miner and from all the research I have done - 220/240v is the way to go. It ends up using less power too (more efficient) so will lower the power bills over time and ofter run the miners at a higher hash rate than 110/120v.

I have one S9 plugged into a 15amp 110v dedicated circuit.    It has the Bitmain PSU, and I used a regular computer power cable to connect it to the wall.

I just touched the power cord going to the wall, and it's very warm.  I'm worried it will melt and pose a fire risk.  Is there a recommended power cord that doesn't get so hot?

Thanks in advance.

The specs on their website say yes. Do you already have that PSU in hand? You will need to order a proper cable to run from the PSU to the outlet. Are you planning on taking your dryer out of service for mining lol. If not you can wire up your own circuit and outlet(s) for this project.

Can I use 240V for the APW3++ with S9 miner? (Like a wall socket for dryer in Canada). Thank you.

You should ask the authorities if there is a power transfer scheme, instead of trying to do so on your own

CLEAR STRAIGHT ANSWER..YOU SHOULD NOT...USE 110v....
BUT PLEASE DON'T...I REPEAT .....DO NOT .....HEED THAT ADVICE


I have 4 S9's in Ottawa Canada..4 more on the way

I use ONE (manufacturer recommended PSU.....ASW3++)  for each S9

And since I knew they HIGHLY RECOMMENDED using 220V...and draw about 1600 watts/rms

(But please ignore this and use 100v so YOUR S9's will burn out fast and you will not be effective nor contributing to increasing the difficulty)

Meanwhile since A=W/V I knew EACH standard 220v/30 amp breaker can easily handle ...TWO ASW3++ PSU's... hence 2 S9's
(3200w/220v=14.54 AMPS)

I could even put a 3rd S9 PSU on the same breaker...but I don't
I could use a 220v 20 amp breaker for TWO PSU's....but I don't

And I run them COOL (15c-MIN-20c MAX) AND DRY and DOUBLE SUPER DUPER-UBER CLEAN and YES they CAN AND OFTEN DO HASH MUCH MUCH FASTER....

I do NOT make MONEY or PROFIT
I MAKE BITCOINS and NEVER SELL THEM...(except to buy MORE MINING GEAR..fans filter etc...)

Awesome. Thanks, it's reassuring. When I had him look at the specs I was expecting him to say to up the gauge and the amp of the breakers. He basically said that the amperage draw would benefit from being on an isolated circuit each.  I ended up getting one "6-20P to C13" cable rated 15 amps, but  I will probably go ahead and pick up the 6-15 to IEC C13. Looking at possible surge protectors (the international type that support that C20 - C15 socket)  and I'm just not sure whether it's a good idea or not.

I really appreciate it. After reading so much on the S9's and 220v I was unsure of the reliabilty or safety of single miners on single circuits.