Topic: Antminer S9 - How to power in Canada? (Read 30666 times)

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
24/7 operation without worrying  

How to set up 220v

www.youtube.com/watch?v=DqefJ2MQrRo&t=10s

Plug and receptacle
www.homedepot.ca/en/home/p.20-amp-flush-receptacle-250v6-20r.1000174840.html

thanks a lot
fusion0389
would you please add images of
which pdu
and what 8 gauges cable with setup
i m doing almost same setup 40amp braker per 4 antminer s9 10amp each 4 port pdu
and as you said 8 awg cable is look like enough for 4 miners at 208v
would you mind add pictures of those or dm please thanks again you save a lot time now my electrican is clear about what to do.

There are no clear answers because everyone has a different setup! What other items are on the same circuit, what is the gauge of wire being used, etc? There are a myriad of questions that need to be answered before one can make an informed recommendation. I would suggest consulting a local electrician to examine your setup and make sure you are running things safely. My setup is as follows, but that does not mean it will work for you or that it is even applicable to your situation.

I have a dedicated 100 amp sub panel with a 35 amp breaker. From the breaker I used 8 gauge romex copper wire to run to the power outlet that feeds the 4 port PDU. Electricians have told me that generally speaking the real world capacity of electrical equipment should be 80% of what it says on paper. Using that formula I theoretically should be able to have 6,720 watts worth of a 240v equipment running across that line with no problem. Now, im not an electrician and I could have made a mistake, but this setup has been working for me for the better part of a year. Nothing has melted or caught fire yet.

If you are running all of your S9's on the same circuit you will need a different breaker than if you plan on running them all on separate circuits. If you ran each s9 on a separate 240v circuit then a 10amp breaker should be sufficient for your needs.

easy basic calculation
no clear answer
1400 w (almost a s9)
at 110v 12.7amp
at 220v 6.36amp
so you can figure out the rest

sigh... A simple Google search would tell you that:
Amps = watts/volts.
For safety margin add 20% to the answer.

5 pages and NO CLEAR STRAIGHT ANSWER...

I have 4 S9's...due any day..and 4 more due in oct..

I will use the recommended PSU...APW3++.....

I understand why and agree intend to use 220V..BUT WHAT AMPERAGE for the breakers...
standard here is 220v/30amp...
There is no way in hell a 1600watt PSU needs 30 amps

(I previously ran a GPU farm with each rig having it's own 110v/20amp...no problems
But this is a whole new ball game...

3-phase? No, residential power in North America is single-phase power changed to split-phase 220v (110V-Neut-110V) by the Utility transformers on the poles. It is still just 1 phase, just that the pole transformer has a center tap providing the Neutral (which is also tied to ground at the panel) and that is what feeds the house. ref https://en.wikipedia.org/wiki/Split-phase_electric_power

Three-phase is entirely different and will either be 3 hot lines with a Neutral (Wye) or 2 hot lines with the 3rd also tied to ground  - no Neutral per-se (grounded Delta).

I see what you mean, 3 phase 220 then, which would also require bigger wire i would assume? and how many of the antminer S9's could i plug into each receptacle ? 

The is no such thing as "double 15A Breaker on 120V line".
When a 2-pole breaker is installed in your panel it provides 220VAC - not 120v. Incoming single phase power to a house comes in as a 220v service with a Neutral.

Go across the 2 lines you get 220VAC, go across either line and Neutral you get the 120V...

Hey guys so i notice noone has poster here in a while but from what i gather from reading these posts i can run a EVGA 1600 PSU on 120V to power a single S9 without having to mess with my service?

But if i did have to mess with the service i would have to run a double 15A Breaker on 120V line to power the AP3 psu for the antminer S9?

Fun discussions.
As an electrician I know all the sneaky ways to find 220 in a home, lol
And have helped people setup for such things in the past.

Please note, that even the EVGA etc. PSU's that run at 120, WILL all run at 208+ and are actually slightly more efficient, and draw less amps over the wiring so is safer.
I always recommend 208 if it's even remotely possible. Regardless of PSU.

You CAN... wire a standard 20amp 120v plug to output 208, which saves money as you can than use the stock high quality PSU power cable that comes witht he EVGA.

Just note that that isn't code, and if you forget and plug other items into said plug, they may go poof.

Although a surprisingly large amount of stuff can run on both 120 and 208.

Pixel I'm also in Manitoba, feel free to give me a shout if you need anything.

Go to home depot or whoever and buy a male 6-30 plug. Take normal C13 cable, cut off the 5-15 (normal 110v) plug and wire cord to the 6-30 plug. Works but take care to use the heaviest gauge computer cord you can find since you are using a 30A outlet...

Best/safest way is to search Amazon for a 4-outlet 208/240v PDU that can plug into the 6-30 and break out into 4 outlets each protected for lower current. While there also get a couple IEC-C13 male/female cords as that is what the PDU outlet sockets will be.

You all realize that as long as you arent running firmware from last year your board wont blow up if its powered and idle right? Running two power supplies is no big deal, i had to run a good 100 S7s with multiple power supplies and never had a problem. Its no different than the beagle crashing, the boards just sit there idle.

P.S. Dont listen to all the people that say upgrading firmware is dangerous. As long as you have half a brain and use the proper firmware for your system it will work just fine.

Hey guys I read the posts here and am trying to piece together myself how to rig up my first S9 & APW3+ PSU. I also live in Canada, and have a 240 V Nema 6-30 straight blade receptacle in my garage (same kind used for ovens / washer etc).

I'm trying to figure out how to best adapt this receptacle to plug in the APW3+ PSU with the standard C13 power cord.

Any idea's on appropriate adapters? I would prefer not to have to rip out the receptacle, but I will if I have to.

+1, all my high voltage PSU's specify 200V as minimum, just like Bitmain. In regards to the PSU's I offer, I find the 2880Wbetter for 2x S9's than the DPS-4K. It puts the PSU at an efficient yet healthy state of load, very reliable, compact and easy to mount with 24" cables. Only challenge is noise and 200V AC input.

The only difference 220V will make vs 240V is it will require slightly higher amperage (~9%) to provide the same wattage.

no 220 = 240 for all intents and purposes
not the bitmaintech comes with 10 wires and will run the s-9.

so if you have 220 you are good.
[/quote]
[
I will add that in a commercial 3-phase setup all the above run perfectly on the typical >208VAC you get across the phases. Most of my ~18 or so kw farm at work runs on it.

I support this from the 905 area code http://helium.powerprice.info/meter
Residential L-L voltage is 240V :: 2 phase at 180 degrees. You have that to your Oven and Dryer plugs.
If you buy a new house, it has another one in the garage for green vehicle charging stations.

no 220 = 240 for all intents and purposes
not the bitmaintech comes with 10 wires and will run the s-9.

so if you have 220 you are good.

as for what 120 volt psu will do the trick.

the evga 1600t2
the evga 1600p2
the evga 1600g2 

  will all work but they cost $$$  400/350/325 they do have a ten year warranty.
they come with 9 cables  but you can use a 2 plug cable one jack to the controller and to the closest board.
I have photos of all the psus except the bitmaintech


https://bitcointalksearch.org/topic/pair-of-s-9s-now-running-photos-are-up-1512186

an evga 1600 t2
an evga 1600 p2
a board from finksy that handles 2x 2k psus
a board from optimizer that handles 1 2k psu

this is your vest bet.

First of all, thanks for the links.

Secondly,
Does it have to be 240V, or is 220V enough? Cause I see lots of people saying 220V and many others saying 240V.
And if I went with the bitmain, I would need 2 of them to power 1 miner right?

I assume you can provide 240 volts
links coming  
okay  three people  can help :

 bitmaintech  >>>  https://www.bitmaintech.com/productDetail.htm?pid=000201505040743496917U7kGsCm0694

finksy  >>    https://bitcointalksearch.org/topic/ibm-dps-4kw-psu-dual-dps-2000bb-breakout-boards-and-packages-1308296    >>>>  he is in Canada  --- I have his gear it is good

optimizer ---- https://bitcointalksearch.org/topic/2000w-power-breakout-board-dps2000bb-to-pc-ie-x12-1373092 >>>> he is in California -- I have his gear it is good I am still testing it

So I was just doing some browsing...
If I went with the APW3-12-1600-B2 on 220V to power an S9... How many would I need?
One has 5 6pin connectors. So you need two of those PSUs to power one S9 right?

Also I got confused,, the site said "Separate power supply to control board: there is one additional 6pin PCI-e connector on the IO board which must be connected to the PSU to get power.".
So does that mean you need a third PSU just for the board???
Or do you just put your one left over cable into it?


What powersupply would you recommend? (Preferably under $250)

It's not a plug unless you point out your signature links Which I endorse as a good solution, btw.

4*2880 or 6*2000 is my normal granularity as well, but I usually do a 60A breaker w/ 6GA supply lines - 4x2880 on a 50A breaker, even only running 7x Batch 3 S9s, could violate code if the voltage is much below 240V:

On a DPS-2880 the at-the-wall will be closer to 1300 than 1275, and closer to 1350 once the 2880 fans are included;

7*1350 = 9.45kW
220V * 50A = 11kW;
9.45/11 = 86%

With the cost differential so low for 50A/8GA vs 60A/6GA the latter has been my preference.

I've got some 40A 208V breakers powering 5x S7 off 2880s and dual Dell 750s in hosting.

*shameless plug*

Another option for powering many units with limited panel space is going with a 240V (double breaker) 50A breaker, with appropriate cable run to a PDU and 4x 2880W PSU's.  You could run 7x B3 S9's by code, possibly 8 in practice from that one circuit and not worry about powering on PSU's in the right order. 

ahh yeah i forgot were talking s9 lol i been thinking s5, my bad

doh

it would still get power at the exact time as the remaining pci-e cables from the same supply, that also supply the hash board

like i said it puts a fork in a warrantied wachine
been so used to buying used stuff ..no waranty
 
reminds self to check topic when i think of a solution next time before commenting

There is a separate PCIe power socket on the fan/control breakout board that hosts the controller board.

no it definately does get the supply from the hash board using the small ribbon cable to the one board

remember the only connections from the psu are to the hash boards

they either step it down to 3.3v and 5v on each hash board or the bbb does it after it(12v) gets to the hashboard then to the bbb

from what i can see the top section opposite end of the small ribbon by the antminer board rev beside the pci-e plug is the voltage regulator step down circuit that provides the small ribbon the bbb.s power or host shield board , could be for the board itself for temp sensor power

I'm pretty sure the controller doesn't get power from the hashboards. The peripheral circuits of the hashboards (like the PIC and DPOT that set the string voltage) actually draw power from the controller, not the other way around. Worst case with a PSU common to hashboards and controller is they get powered at the same time.

ahh that puts a fork in under warranty machines i guess
but bogus in my book since the controller gets it power from the hash board first thats connected to the supply so in all fairness the one boards powered before it anyway

it only takes milliseconds for the ssr to turn on anyway ... to the naked eye they come on at the same time
i doubt the board has time to even boot yet to poll the hash boards

If you use the controller PSU to kick on the secondary, that violates Bitmain's recommendation to have the controller PSU always come on last. You'd have to momentary turn on the secondary PSU bypassing your mains switch, then let the controller PSU latch it on. If you want to play by Bitmain's recommendation anyway, so it's still the same problem noted in the first page comments.

Ok I will bet you do have at least one or two 220 outlets in your Canadian home.

If you have an electric oven it's 220 if you have a larger window Ac unit it's possibly 220 your electric water heater is also 220 but that one is most likely hard wired and if you have a electric washer and dryer they also are 220. Now all you have to do is go to Home Depot and get a 220 plug and make a plug that will fit into your existing 220 outlets.

Be careful 220 is very dangerous that's why we use 110 in America only half of us would still be alive if we used 220, no I'm not calling Americans dumb let's call it curiously stupid! ("Hey hold my beer and watch this") famous red neck last words...
   
Antminer S9 - How to power in Canada?
June 06, 2016, 08:20:56 PM
Reply with quote  #1
So the new, amazing Antminer S9 just came out... And I really want to buy it!
But the S9 needs to be powered at 1375W, and with 9 PCI-e connectors (3/board).
The recommended power supply is the APW3.
The APW3 needs over 220V to run, but I live in Canada, and in Canada there is only 110V outlets.
Currently I'm running 2 S5 antminers on one EVGA SuperNOVA 1300 G2, which has just the right number of connectors, which is 8.
So now I'm either looking for a PSU that can do 1600W and has 9 PCI-e connectors and hope it will be enough,
could use 2 PSUs to power one miner,
or get a 110V -> 220V transformer and hope it doesn't blow any boards or circuits.

Please help me out you wonderful people Smiley

something on running two server supplies at lower wattage to run one miners boards separately as discussed earlier on
If you run an ssr relay from pin 50(gnd) and 52(3.3v)or 54(5v) of the bbb to switch the second supply on when the controllers powered
should you loose power to the controller it will shut down the second supply too  or the second supply can fail and the controllers supply will still keep working as normal (you will still hash on the controllers supply board in this scenario)

no more hashing while the fans are dead




for ac cords
http://www.ebay.com/itm/272248158722

for server supply on/off pin jumpers
http://www.ebay.com/itm/351340978967

Yes you *should* get a permit in order to add a sub-panel, I have no idea what the fines may be for doing without as you will need (if I'm not mistaken) full electrical drawings by a Master (or at least Journeyman) electrician which can cost quite a bit. Based on experiences of other people I have talked to, the worst they will do is force you to tear out the additions.

The permit itself should only run you a hundred bucks, not including the planning and blueprint work which will be significant. Keep in mind this is issued by your Municipal Government, not the utility provider.


Quoted from Office of Fire Commissioner of Manitoba website: http://www.firecomm.gov.mb.ca/codes_forms.html




Based on this it sounds like you're better off than me, regulations are a bit stricter here. I wouldn't worry overly about doing the work, though I'm certainly not a contractor.

Modifying electrical so long as there is one layer of protection between the work and your meter (Your main breaker at your panel is more than sufficient) is not illegal, I took the risk on just making the changes as there's realistically only a small chance it could become an issue if I do a large contractor reno, or if I sell the house. Even in these circumstances I may be able to get the work permitted later so long as it can be inspected.

If for any reason you need to change the main panel, (assuming there's no shutoff between the panel and meter, which would unusual in residential) you're SOL and will need a permit without exception.

We do already have a cable pulled that we got from a friend, so all I need now is just a panel and breakers. Panels cost about $50-150 on Amazon, and 220V breakers are usually $10-25 each.
So I also heard that here (In Canada Manitoba), you need to get a permit from your power company for getting a sub-panel installed. Does anyone have any experience with that? How hard is it to get a permit, and how much did it cost you?

yeah id say so too, buy used at demolition reseller shops such has habitat restore
I picked up a fully populated 100a breaker mains panel for $70 on kijiji
, the outlets and wiring and steel tubing were also reclaimed and free
i have an ats switch installed that cost $50 thats between my solar setup  inverter and the 220v mains from the house to my panel
my whole solar setup, and ac hardware cost less then $2000 and i can power everything on solar for 4 hours, my next steps to buy more agm batteries to get more reserve power

id say i spent less than $300 to rig up a whole panel as far as the ac side goes , since the solar was close to $1800 and thats CAD too

I'm perched happily in Missouri, US where a dollar goes about 7% further than a lot of other states.

Also, if anyone needs any 20A single-pole breakers like would fit in a Square D Homeline panel, I got at least 20 of 'em I don't need. They sell here for around $3

With your remaining 15amp breaker...well, either put one s7 on that (120v and underclocked), or swap it out for a 20amp 120v, and put it on that instead.  20amp 220v like sidehack said is mooore than enough for one s7.  its simple really, 120v*20a*(80%) = 1920watts.  You have 220v*20a*(80%)= 3520watts.  So yeah technically 2.5 antminer s7's per 20amp 220v breaker.  I dont know where you are sidehack, but in canada (i think thats where op is ?) breakers cost more, wire costs more and in general the cost of everything is higher (accessories, plugs, adaptors), even adjusted for exchange rate than in the us of A.

Glad I'm not the only one thought it was high. My 400A 3-phase run, 100 feet from the pole to the main distribution panel and from there 80 feet to the hosting sub-panels was only $4500 in materials, including 1400 feet of 250kcmil aluminum. Most of the rest was the new main panel plus three breakers at 150 or 200 amps. A simple 60A two-pole subpanel shouldn't have cost nearly a thousand bucks.

Damnn that's pricey!
My neighbor is an electrician. I would get him to do it.
But first I have to save up $1,500 more only to get an S9 

100% correct, I'm lucky enough that my business partner is a Red Seal electrician. We wired a 60A 240V sub-panel in a day to power the miners, cost us about $1000 dollars in materials (the 60' of 60A 3wire cable was $280 alone).

That would be ideal but you would still need two spaces on your main panel to supply 220v power to your subpanel. But I wouldn'the get into that stuff unless you know what you are doing. There are alot of things to consider and failing to do that can be deadly. I would get an electrician to do it.

Oh I see. So how about just adding a second panel?
I think it would be dope to just get a big new panel and have it dedicated to just the bitcoin miners!

To power a miner with 240v you will need two breaker spots to fit one of these PER MINER




If you only have one (or zero) spot(s) available, you will need one of these:



Which will allow you to power ONE miner on the middle hookup (An antminer MUST HAVE a dedicated 15A breaker, for 240v those two 15A breakers MUST BE ganged together to prevent potentially serious damage to a power supply) and give you two 120v spot to replace whatever you had to move.

Hope that helps


Edit: Thought I should mention the top breaker will run you about $20, the bottom one is closer to $50

In order to get 220v from it you would need 2 spaces together to fit a double wide breaker in it. how many amps you can use depends on how many you are provided with and how many are already being used. maybe you should upload a photo of your breaker panel, that would be a good place to start.

That's tons of interesting posts you guys. Now I need some tips...
I have only one free breaker left... I want to get a 220V circuit on it. How high in amps can I go? How many S9's would I be able to run on one breaker?
Explain it like you try to explain it to a 3 year old, That's all I am 

Quoted for pics

Nice short runs, that's a pretty handy setup you're running Never forget that "home mining is dead"  



I'll just leave this here....



*For some reason it keeps refusing to display: http://imgur.com/P5mHhNo*

As I said before its not amazing and I know I could stand to do a little construction to make it prettier but they function just fine being ugly.
with the info that sidehack has made me aware of I will have to do a little construction to make room for three more miners.
Also I know that since I am a newbie these will only show up as links but apparently if someone awesome quotes me they will show up as pics in the quote...otherwise i guess you will have to visit the link to see them. Pixel375 I hope you have enough info to make a plan!


http://imgur.com/4MBvfFG
http://imgur.com/3dEeg4Q
http://imgur.com/ZfUzMag

Ok I will upload in a bit but it's not nearly as impressive as the ones posted by Erumara earlier.

 Yeah!  Upload away.  Miner porn is always cool

16A would be a good margin for powering on 120V. Bitmain also recommends their 1600W PSU though, which won't work on 120V, so I don't know what they're doing.

The paperwork that came with the hardware said it needs 16 amps but perhaps it was referring to 120v power. If this is true than I can double the number of miners in my group. Thanks for pointing that out.

At 220V an S7 should pull under 7 amps. A 20A breaker per unit is extreme overkill. My hosting shelves run 208V and I put them four to a 30A breaker.

You have gotten alot of good info already  but I will tell you what I did anyways. When I got my 3 s7's I had the same issue. I needed each of them to have 220v and 16 amps. I ran a 6 Guage 3 wire cable from my main breaker panel pushing 220v to a new subpanel that I installed just for the miners then I got 3 20 amp 2 pole breakers and some 220v outlets from home Depot and installed 3 20 amp 220v circuits, one for each miner. I then had to get some heavy server power cords and splice new ends on them to fit the 220v outlets that I bought. I know there are alot of ways to avoid having to do this but it seems to me that each miner should have its own 20 amp circuit with the appropriate sized wires to avoid heating up breaker panels and wires. I read about pdu's and it seems to me like trying to put too many eggs in a carton. If you are interested I can upload pics of my setup.

You're too kind

Figured I would snap a couple pics of my nearly completed ventilation.

To be added: 2 more 8" fans to bring airflow to 1500cfm, the necessary two 8" ducts on the left side of the box.






Hand-made 10"x14" filtered intake, and 10"x10" hooded exhaust.





*Ignore the timestamp, this old camera constantly dies*

Wow!  Nice setup.

Thought I may chime in, mining in Alberta myself. Just about finished my mining box with space/power for 8 miners, working on some new pics of my finished intake/exhaust.

Here is 240v power for the miners, each unit pulls on a 15a double throw going to a simplex 240v plug.






If you're having a electrician help you out those simplex to 5-15 adapters are a bit pricey, but actually meet code in Canada, as you cannot wire up a 5-15 wall plug with 240v and have it pass an inspection.

I highly recommend the eVGA 1600w, they will power any GPU or ASIC rig flawlessly and with better efficiency than Bitmain's PSU.
I had one of these eVGA's spontaneously stop working, it was inconvenient but I got a new one from newegg in 3 days. 2 weeks later after spending $40 to ship the dead unit back to eVGA in California, I got a brand new sealed unit with a full 10yr warranty and altogether I'm extremely happy.

The best part is I have the spare PSU just itching to power an S9, just waiting for the price to drop a little bit more.....

 You probably have a couple of 20A breakers in your kitchen on split plugs for your toaster over/coffee maker/microwave.  That would give you more than enough power for the S9 @ 120V
Careful with your other outlets though.  They are ganged so you could easily pop the normal 15A circuit breaker.  I did that a couple of years ago turning on my Christmas tree lights - even though the outlet was far away from where my miners were plugged in, they were on the same circuit.  If you do nothing else, make a diagram of which outlets are serviced by which breaker.

Yes the blades will try to finish their currently hashing jobs, so here's the trouble, when you cut off power to the controller, the fan stops running but the blades are still hashing for at least a short while longer. Temp gets out of control, since the fans are no longer running, poof out comes the magic smoke.

If it's two server PSUs load-balanced, its as good as a single-rail PSU. When one goes down, the other will too. I've been running miners like that for two and a half years.

Bad things can happen. Better get one proper power supply that can handle the miner by itself.

if linked in parallel and one dies  the other would shut down do to overloading.

So if you are running two 750w PSU together (I don't know the proper term) for one miner.  What happens when one of the power supplies fails for whatever reason?  Say that circuit trip, one psu blew, some idiot tripped over the plug, etc. would the other PSU safely shutdown?

I have 3 acres of land guys!
Power cost is about $0.07/kwh
If someone wants to rent some of my land I got plenty

Land is very cheap to buy... Only the property taxes are high.

I have been highly considering buying land in Manitoba...

Lol, electricity down here in Manitoba where I live is $0.07/kwh. It's really nice

Probably. You might have to pigtail the tach line back to the fan connector on the controller; I don't know how they behave with only one fan reporting speed.

Sidehack,

Can't you  just plug the other fan directly into the other PSU? So if the controller shuts off the other fan will still be spinning?

Alas each rail is like 250 W.. .. Might be 300 actually but all way to weak .

I had to re-wire the power supplies to work with my S3 actually.  Well.. by re-wire I mean just rip off the two 4 pin connectors for the CPU and connect them to a 6 pin.  The PS kept dying when I first ran the unit, after some googling I found out I had to power each board with one of the 12VDC busses as one couldn't handle it..

Looks like I should of just gone with a beastly PS unit.. oh well. I will just continue to mine with my "New-rbox" and a few of your sticks lol.



I am considering buying up some land in Manitoba to mine though.. cheap power for businesses and cheap power in general.  That or Quebec as I would probably need to learn to fly and buy a plane to make Manitoba viable.

Unlikely that any given rail is at least 400W? That's what you'd need for a single board to avoid stuff exploding.

Yep, sub-500W miner would be nice.

This is why spazz is hoping for a 100-400 watt (preff closer to 100w) 16nm ASIC :S .

 I am still considering an S9 but all the PS I have for my S3's won't cut it as they were cheaper PS and have two separate rails for DC... I have a feeling those DC buses won't play nice together :S.

(From Canada like the OP)

I would guess they keep hashing on whatever work was passed in last and then fall idle whenever that runs out. But they're doing it with no fans, and whatever power draw they pull at idle, all that heat would still be inside the box. Sounds like Tupsu has been on the receiving end of a problem like that with destructive results.

When the controller is shut off the other blades still keep hashing?

We (bitcoinpsu.eu) have one type that also delivers 1000w+ on 110v

At the moment we have some running in a 3 for 2 configuration (each PSU has 2 boards and 1 controller).

We're working on a load-share version, but up til now we didn't have any problems without it...

Thanks, I will let you know. But first I will have to save up to even be able to buy an S9

found the titanium version

http://www.amazon.com/Lenovo-Titanium-Thinkserver-03T8617-SP50E76346/dp/B019HKWQ7I?

2 for 75= 150 plus boards and cables  maybe  210?

but the evga 1600 ti  is 400

would consider this instead.. and it would allow the 120 volt player to use it.

That certainly still works for me.  I'm one of the people that prefer the 6-pin PCIe jacks over the screw terminals.

the 1600w G2 supernova is a good choice, even though its expensive.  10 year warranty - so you use it for 10 years full blast.  Its quality built, connectors and wires are tough too.  No risk of fire there.  You should at least get a 20Amp plug on the 120v, or go 220v.  ask an electrician, but its going to cost you 100-150$ just to get him to your door and get him to do some work   unless you got a good plug for an electrician. 

Good PSU's are not a bad thing to have around they will likely still have value even if you decide to sell it one day.  I highly suggest keeping all packaging/box/etc and put in corner if for if you sell that is what I did with all my old ATX PSU's.

If you get into it getting a proper 220/240 with PDU is very nice to have.  You might check before you spend that kinda money on PSU if your neighbor would do it for decent.   And I had some help from Phil which I'm still grateful to him for on my 240.   Depending on your local laws/ordinances you might be able to do it yourself.  I was lucky living on farm out of city where it was not an issue.

I've had interest in something I was already thinking of doing, adapting the 750W board to take screw terminals or 6-pin jacks like the new DPS8/12 board. The all-in kit I would provide would be two boards with 6-pin jacks and 11 cables - one about 6 inches long. There'd be a jumper wire in there to tie the SHR pins together to load-balance the two PSUs, and you'd use the short cable to jack the two boards together and establish a common rail. That leaves five jacks per board just right for an S7 or S9.

I could build a single dual-PSU board, but since the same functionality could be provided with two regular boards and a $2 cable I'd rather not have to split my resources between two different board runs.

I believe that his old board used the Power Edge 2950 PSU.  I'm hoping for something similar to the 4k breakout boards where you can just stack or place side by side two 750s and the board plugs into both PSUs and bridges them for you or will it be something that you have to hardwire together yourself?

Dell makes a 750 watt titanium server. If it has the same pi out as the standard 750 watt dell it would be great.

If you give me the,dell part number for the dell your board uses I will try to figure out if the dell titanium has the same pin out

This is exactly what I've been looking for.  I'll be waiting anxiously for this.  Perfect right after the halving too so we know where BTC prices, difficulty and hardware stands.

We definitely do have 240V here in Canada, almost all homes use "split" single phase, where the power in to your panel is 240V and separated to half-phases of 120V.  As Virosa mentioned, oven and dryer plugs can be wired for PDU's to power PSU's.  If you have either room on your panel, or two adjacent unused 120V circuits you can have an electrician convert them to a single 240V.  If you do end up going that route, let me know as I sell server PSU's fully capable of running S7/S9's (2x units per 2880W PSU) and am also in Canada.  The EVGA units are nice, but the extremely high price makes ROI much more difficult (they are $430 CAD on Newegg...)

Thanks for the replies.
My neighbor is an electrician, but I think it would be safer and easier just to go with the EVGA SuperNOVA 1600 G2. I didn't know it had 9 PCI-e connectors.
Thanks again guys!

Very nice for people "stuck" on 125V.

My fix was mining on my Oven plug, until i got 250V. I'm guessing cloth dryer plug would work as well.

Hm... that is a good point.  It'd take a bit of rigging but you could use the 500W to kick on the 850W, but then you violate Bitmain's recommendation to have the controller power up last. With a bit more rigging you could probably cross-latch them to avoid that problem, but if you know enough to do that you probably also know how to wire in a 240V circuit.

I'm working on a redesign of my Dell 750W board and hopefully a new batch, which with that you could load-balance a pair on a common rail and get 1500W with 10 cables off 120V for about a hundred bucks. Too bad a full production batch is more than a month off.

This is a bad idea. If a 500W PSU shuts down and 850W not, then you can get with a few hours 2 overheated blades.
That's what happened my two S7  during  warranty  and with one S7 blade after warranty period.
(Non-working temp sensor )

Or get about an 850W PSU for two boards and a 500W PSU for the third board and controller.

1. Hire an electrician to install a 220V 208V (phase to phase) circuit.
or

2.
EVGA SuperNOVA 1600 power supply.
See submodels with different effiencys (from gold to titanium) below.

no transformers!


what is this unit in ca?

http://www.amazon.com/EVGA-SuperNOVA-Crossfire-Warranty-120-G2-1600-X1/dp/B00MMLUIE8/ref=sr_1_1?ie=UTF8&qid=1465244888&sr=8-1&keywords=evga+1600+g2

note you must run it alone on your circuit

So the new, amazing Antminer S9 just came out... And I really want to buy it!
But the S9 needs to be powered at 1375W, and with 9 PCI-e connectors (3/board).
The recommended power supply is the APW3.
The APW3 needs over 220V to run, but I live in Canada, and in Canada there is only 110V outlets.
Currently I'm running 2 S5 antminers on one EVGA SuperNOVA 1300 G2, which has just the right number of connectors, which is 8.
So now I'm either looking for a PSU that can do 1600W and has 9 PCI-e connectors and hope it will be enough,
could use 2 PSUs to power one miner,
or get a 110V -> 220V transformer and hope it doesn't blow any boards or circuits.

Please help me out you wonderful people