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So what would i need to conditionate the room for the machines? I would have to install a air conditioner? a mini split or something? The electricity for me will be free so that is not a problem. 

You're able to provide 17,000 kW  for free?  Nice.

You would need several big 240v 15-20A A/C to cool all of that, its not a good idea, just push the air strait outside. I hope thats in a warehouse because that would be a lot of noise.

17000 w/hour you mean? 17000 KW/hr is a lot.


But pushing the air outside will let air in. Air in will carry dust. Isn't that bad?  What kind of extractor would i need? What size?

A very powerful one, and i don't know exactly depend how much space you got to let the air through. And yes, there will be dust, so what :P ? Use compressed air from time to time and buy box fan filters on ebay or such.

Dust don't really do much unless you let it accumulate by the inch. Unless you live in a very dirty environment or next to a volcano, you should be fine. Here i just blow some air through the heat sink every few months for good measure.

Thank you very much. Another question, what else hardware would i need to connect all the miners in serie. Like what is all the hardware that i would need? A computer to run the mining software, another special hardware to connect all the miners to work together? USB hubs or what other kind of hardware?

No need for computer for running the S3 per se, the S3 is self sufficient, its controller is included, you just type its IP in your web browser on a networked computer to connect to its open-wrt software and input the settings you want. Then the mining will happen by the miner's controller.

Miners don't "work together", they all individually point to a pool and the work is pooled there.

It is not a USB device, so no, nothing of the sort.

You will need PSU's for 50 S3, so quite a lot of them. Ethernet switch, you will need 50 ports, unless you try to setup wifi on them. And 50 ethernet cable. A router to plug all the switches in. A couple of 10-12 port switches would probably be cheaper than one big one.

And earplugs.

And a free registration at your local dating site.  Just say you do construction and the noise will make sense.

You kinda missed the boat on a bulk S3 farm, in my honest opinion.

You can find tutorials on youtube. I've seen a bunch. There's 1 Asian guy explaining everything. Can't remember his channel name although, sorry.

Never heard of an dust explosion, if dust gets too much and doesnt get cleaned, it heaps up. That is explosive and with the miners being hot, that is the ignition source and boom it blows up. Dust is dangerous!

I just honestly can't imagine somewhere with such dirty air. Even here in Québec we have relatively okay air and the dust does not accumulate overnight at all. It takes a year to have an accumulation that raise the temps by 7C~ for GPU and 2-3C for antminers.

And once a year, blowing compressed air through the heatsink is not really much maintenance imo, takes a few seconds per miner, which i only need to do at summer anyways because its cold 8 months a year here and then heat mean absolutely nothing, dust or not at this point.

If you live in a very dusty environment you'll need filters and lots of them i guess.

Anyhow. 17kW is not too bad on 240v. If its 120v that would be 141AMP~ which indeed sound too much for a "room". You'd need an industrial grade power circuit. Especially if you want to add some A/C during hot season.

My friend is the director of the electricity company of my city. I already talked to him, he is interested to invest in machines too. I have a big place in my ranch with no neighbours.  i just need to know how to install the miners and the whole room setup.

He owns the electricity company, is the CEO, director or whatever is called. I'm not stealing anything, he gave me green light to do it. 25 power supplies? so i power supplies can handle 2 miners? This is what the seller says about the miners

"The S3 Plus is one of the few unit capable of hashing on a wireless network. These units come with built-in wifi. They do not come with a power supply, and you will need a typical computer PSU with 4xPCI-E 6 pin power connectors. Strictly only 2 PCI-E connectors are required at stock speeds, however it will reduce cable temperatures by utilising all 4. We also need to tell the PSU to always be on, as there isnt a motherboard to do this. Cut a paperclip into a U and insert it into the green wire and either black wire to the side of the green wire. Tape it up for safety. The power supply will now be controlled by its switch on the rear socket."

Hmmm i rather try to find a bulk deal that comes already with power supplies. I bought a s4 2000 gh/s that already came with a power supply im going to pick it up tomorrow.

No i think i would go with the units that comes already with the power supply integrated. Do you guys know where i can find bulk deals of the s4 (2000 gh/s)? Can't find a bulk deal, i only can find individual s4 units for sell.

How many do you want?  I have S3's and S4's

In this case you,re only going to need 13~ S4, equal amount of ethernet cable, a router and a switch or two with 10 ports~, surge protector power bars for every outlet.

One air entry, one air exit, one or two fan to move the air.

I suggest you post an ad in the computer hardware market place and see what kind of offers you can get.

Thanks guys. I think i would get 12 or 13 s4 units. I'm already talking to one guy on ebay, but i would like to find more offers.

Ebay tend to be way more expensive, i recommend, again to check around here, you may get much better deal. Ebay tend to be 50-200% above forum prices. Just be sure to use the trustable escrow services.

What price are you getting on ebay? I can probably beat it. PM me if you want to deal.

$679.00 per unit. Is that a good price?

It seem overpriced, but not TOO horribly so. I've paid much less but i've only got a few from deals here and there. I'd say 500$ is the max you should pay at current BTC price. Otherwise just get a few S7 instead, because at the suggested prices, S7 are(or were) actually cheaper ^_^".

The only upside to buying those S4, even at 500$ is that you will get them sooner, no need for PSU and hopefully no import taxes.

500 seems like a fair price. What could be a fair price for the s7?

Thats a bit awkward to answer. The S7's are brand new, so people reselling them at the moment will be asking a big premium, so your best bet is to buy directly from Bitmain, but they don't have them on Hand, which is annoying.

The other awkward point is that there are 4THs, 4.66THs, 4.88THs and 5THs S7. The lowest they were purchasable for was 1200USD for 4TH/s and the most expensive was 1800 or 1900USD for 4.88TH/s.

Finally the S7 is almost 3 time as efficient as the S3/S4 so you should be ready to pay 25%-50% premium over what we agree is fair for the GH/s of a S4.

TLDR Good luck getting a S7 under 1500USD, still depending on which variant. But buying a S4 over what a S7's GH/$ would cost would be plain silly.

Your other Alternative is S5 for 300USD or less.

500 seems a little high. Even if I was selling my own uunits I wouldnt ask 500.

The board. Its a child board of the marketplace, a board on this forum;
https://bitcointalk.org/index.php?board=75.0

Thats where i got most of my hardware.

Hello, the s4 that i bought to test mining is about to arrive. Please can someone tell me the steps to follow to star mining?

First creating a wallet. Done in blockchain.info. But when the machine arrives what i will have to do after plug it in to the electricity and plugin in the ethernet cable?

What pool should i join? Which is the cheaper pool fee that i can find? And all that basically. And how the pool will deposit my bitcoin profits to my wallet? I heard some previous post in this thread that i won't need a computer to configure the s4 to the pool or anything is all done in the s4.

Thats what i said. But i meant you don't need a computer to run it, you need any kind of device that has an internet browser, put the miner's ip into your browser and edit its config there. Probably check on your router on your DHCP lease to see which IP it got. Unless the previous owner put a static IP on it. Do a reset if its not already done in the case where you can't find the IP.

Get a real wallet, SPV wallet is good for the end user usage, something like Multibit HD. If you want a web wallet, blockchain is not a good one. If you're in North America, probably Coinbase. Regardless there's a list of wallet on the bitcoin.org website.

Kano has best payout, very irregular payments because its so small. Slush pool if you want more steady payouts, that one has 2% fee. Mining bitcoin.cz. I strongly recommend the later one or some variant. Preferably not a Chinese pool. (Hash distribution preference)

this is useful but i think this is stealing, even though he is director he does not own electricity !

Yeah life is unfair. But free electricity is an opportunity i have to exploit. Half the people in my city steal electricity without the consent of any employee of my electricity company. Some others steal electricity with the consent of a regular corrupted employee of the electricity company, but i mean my friend is not a regular employee, he is boss. And not only regular home users steal electricity, also big companies like i don't know... cocacola for example, they all steal electricity... This is how things works here, and believe me i don't feel am a bad person. Not trying to justify my self, is just the way it is. Oh by the way when i say "free" is not really entirely free, i will pay the minimum price established by the electricity company. which is like 30$ monthly.

I heard Coinbase can freeze your account. I mean i just need the wallet to hold 1 bitcoin, the moment i have a bitcoin i will exchange it to dollars. I will not hold bitcoins yet.

So in the web browser i put the miner ip, then inside the miner ip configurations i can configure the address of the pool? Then i guess the pool have a website, so i just make an account in the pool website and i will see there all the bitcoins i earned by mining, then the pool website have payouts directly to your wallet. Is that correct?

I heard someone had his BTC frozen and he was being pretty vocal about it, then eventually he found out it was because his bank had not cleared the funds to Coinbase yet. No problem personally. If delays or dealing with a 3rd party is a problem, then get a real wallet as previously mentioned.

Me i just use Coinbase for BTC <-> Bank. I don't store BTC there either, but they do have a Vault feature and they are insured.

Yes. Put IP in browser, you'll connect to its Open WRT OS with all the tabs and data.

Yes, pool where you do no need to register, you will put your Wallet Address you want the payout sent to as a username. For Slush pool, you register, then can set a payout address. Same for Kano.

You should probably register now so you can familiarize yourself. And properly managing your miners by setting up worker monitoring is a godsend when you have multiple miners.

If you live in a cold climate in these winter months why bother  :P
Just leave the windows opened and you get instant air conditioning for free from mother nature for the next 5 months.

Hello, i already chose https://mining.bitcoin.cz as my mining pool.

I need something like coin base deposits to paypal account.

Coinbase says "Sorry! Buy & Sell not available in Mexico"

Or something that would let me exchange BTC to mexican pesos to my bank account.

Ok i have everything working now.

But i don't understand all that about the rewards and everything. Here is a screenshot of my pool website, see screenshot http://prntscr.com/98x8bb

Unconfirmed reward .12$ what is that?

http://prntscr.com/98x8zu

So .12$ is what im going to win and still 89 confirmations left to be filled. That would take all night long right? So .12$ is what im going to win to leave the machine on the entire night?  

I saw in a bitcoin profit calculator that my 2000GH/S machine, with free electricity and all would make me win .22$ per hour.

Mine is set to BTC so huh, well i guess it doesnt change anything.

So what do you mean, leave your machine running? I think i made it abundantly clear that the miner mine on its own and you dont need to leave any PC running? The miner is completely independent.

Now, you're not getting paid like a job, you get a cut of a block WHEN you find a block. The time it take to find a block is random.

And yes 100 confirmations is 1000minutes~ on average. So all night and then some.

Wow... you didn't read up at all on how the whole mining thing works, did you?  You earned $0.12 for that block.  Every block the pool finds you'll earn some BTC as long as you're mining.  Let it ride for a while and you'll see the earnings add up.  Right now your S4 at 2TH/s would expect to earn just about 0.01383BTC a day (or ~$4.93 at current exchange rates).  That will change in a few days when the network difficulty adjusts.

instead of going with the s4 you should go with the s5, the ghs per wattage ratio is better.

You should not buy even s5 , you have to go for s7 from now.. you can not ROI with s3

What are you talking about, i can ROI S1 right now because of how crazy the price raise is. Also OP already mentioned he ended up with a S4.