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hi guys ,
 we are seting up a small farm with 30 s7s

i just have a question that bother me   and is  [ how long can last s7s  in a nice enviroment[

also i would like to know if some one can let me know if there are some other hardware with more power than s7s


thank you

the s-3's are 18 months old and still work

the s-5's are 12 months old and still work


So good care and conditions you could get 10 to 15 months .

as of today they are the most powerful that you can buy.

My Antminer S1 are still working as well. If you have a good unit, i'm guessing it will last longer than you need it to. Or you could have a bad one and it could break at any time.

There are hardware with more Hashrate than the S7 but that does not mean its a better option. Also trying to get something like a SP50 is pointless unless you have a datacenter setup.

Also I don't think SP will be interested in selling one at a time, at least at first on SP50.  I see them going for bulk sales, which your right data centers could be the customers they are looking for.  I also think NDA's will keep info on SP50 slow to come out, but hope I'm wrong on that.

OP what is your electricity price? In many cases the gear will last longer then it makes sense to mine it with.  You might be surprised but you might end up selling them after mining a while.  After that you sell to free/very cheap electricity people.

well our electricity cost is like free , we just pay like 100$ for our farm runing 30 s7

so is like free for us. but what i want is  the time that the s7 in a perfect enviroment can last

cheers

Your S7 may last anywhere from 1 Day to 2 Years. There's no QC, these Chinese manufacturers just make'em and ship'em. With diff rocketing up and the halfing in 7 months, chances are your S7 will become obsolete before they break down.

Whaaa? You mean the QC sticker they put on it means nothing? ;)

I'd think they boot the thing to see if it runs, but i have to agree i not thinking so very strongly.

They do start them up on all I think.  Some get a "burn-in" where they truly run them but I don't think all miners get this.  Some get quick test and shipped.    Others could be in data center for a while if batch does not sell quick.

It's kinda funny now talking about no QC running them not long enough, as a year ago most would be talking about miners being used to long on "burn-in's".

Having a used ASIC is not really that bad, it kind of feel to me that if its been running stable for a while, it will be fine, as long as you use a proper PSU and a surge protector anyways. Haven't had anything break on me, yet, beside surge protectors.

Some of the miners have been mined by Bitmain for some time to burn it. Some are not. It depends on how fast the batch is sold out.

Depends on the miner.   A lot are pretty good quality and will last multiple owners.  There are some dud's and some that don't work quite aswell.  Like the Dragon A1 it had a pretty crappy PSU it turned out long term.  I would guess they are still breaking.    Other miners like S3's were tanks.

So part of it depends on miner and also how previous owner treated it.  Previous owner can make a big deal.

i doubt that, no miner even lasted less than 6 months, unless you're referring to a faulty project, the s7 i'm sur eit will last at least like the s5 if no more, this because in the future the efficiency will matter less, seeing how much is improved vs the price and the halving

I have a friend who mines with his own equipment, I mean they make hardware on their own and mine, they have different types of miners and they don't sell them, and he says that these miners can easily perform for upto 1 year, but the most important factor you need to take care of will be the cooling...
If the environment is cool and even after that, you do better liquid cooling for those miners, then I doubt they won't run at least 8 - 10 months...

Can you link to this?  I have not seen someone small scale make their own gear.  There have been 2 or so project's I've seen usb one's.

It just seems hard to believe your friend makes the chips, machines, etc.  Unless your friend is part of one of the big companies.

Antminer S7s will last a long time in a nice climate controlled environment that doesn't exceed 77 degrees Fahrenheit.

Sounds like an interesting place to start a profitable mining operation.

Where is your mining farm located?

our mine is located in Venezuela ,

Are you able to show some pictures of your miners in mine? Would love to see a working one in Venezuela.

I'm not sure why but the plain mining board has a new scheme for someone to start a farm there about every month, every other at most.  They have all went away  so far except 1 might turn into something..... but it's been a long time since pictures and the last they said they still did not have gear.  It seem's a lot of them take a picture of inside of warehouse and think it's data center.

But please do share pictures I'm sure others would love to see them to.

if you want i can send a email with some images of our firt set up just live your email address

Can you post like phototbucket or other that  works? Then others can see aswell.   If you post link to picture someone with higher rank will quote so everyone can see the pictures :).

Do you know many other miners out there?  I was just surprised how often mining operations try to start up there in regular mining forum.

yes i can post a photo no problen just i cant find the way to do it here just let me know the way and i will post

Just upload your image to imgur, then copy your link that shows the image directly, enter that link between [-img-]        [-/img-] (Remove the dashes, cut the space and add your link there and you are done...) :)

Thanks for posting interesting to see a actual operation in Venezula.  How long have you been operating?

Also are you getting electricity there super low? Some have reported some very low electricity cost's there?  How do you find electric stability does it lose power or power problems?

Thanks though for answering and showing a neat operation.

the cost is almost free  for us  (like 12 to 20 $ month for the frarm )

there are some blackouts but rite now is getting more stable

we have already 6 month in the bussisnes and we are investing more in the mining factor
increasing the TH POWER   our goal is to reinvest for long

may i know the ROI you people are getting.. impressive snaps . cheers mate

You will make a lot of profit with the almost free electricity. The bitcoin you mine will make you rich there.

with the actual price of s7 5 month to breakeven

Very interesting I love to hear a sucess story there.   I like all mining to be a sucess story though :).

Sounds like your headed in right direction.  With almost free electricity do any electric company workers or officials ask why usage is so much higher?

If you get good units, they will probably last "forever".

Nice setup in ur pictures. The only tip I got would be to not strip/tape the power extentioncords together like you have in your picture.
Getting 30 S7's in there, and putting them together like that would probably generate some heat!

Happy new year! :D

nothing last forever, every HW is subjected to thermal stress, and they have a precise lifespan, this is the case for gpu too, even if well cooled after some years they will break

He is an engineer himself, and it's not like he has any website or something, he does it alone and offered me partnership once when some slots were open, but then he took his offer back as all the slots were filled...

They needed few investments in order to fulfill the expenses occurred in making those miners, but they got them...

He uses Skype, if you need it, PM me and I will let you know...

Can you just show some of his gear? Picture or stats?  Its just that this does not happen often a engineer would need a ton of skills to build an asic.

What company chips is he using? Or are you saying he makes chips?   To what point is he making it?

"forever" as in as long as they are practical to run!

I m not sure home mining s a way to go anymore. I do not want to spoil your plans but with 20-30% montly diff growth, I simply do not see how that can work anymore.

His farm is in Venezuela... so he has cheaper then average electricity.   So I doubt it is going to hurt him.

On other miners with home/hobby with regular electricity pricing it needs a bump in value.  I think there will always be some hobby and home miners no matter what.

Do not worry at all. They are sturdy from inside. ;)

I am running 3 S3 miners for 8 months now without any problem. I will probably run them until I reach my ROI estimate. Also I will keep them running until I calculate there is significant loss in mining with them at coinwarz.com

And your S7 will probably last longer.

Electricity price s got nothing to do with diff growth. Even if he s got higher reward now, due to lower electricity price, it s still going to go down 20% per month if this trend continues. To tell u the truth, I expect mining diff to go up even more in case BTC price starts to push higher.

But hes paying so little he likely can run no matter difficulty for a long time.  Look at Venezuela it's not the most reliable but it is always said to be super cheap.

I don't disagree that it will continue to grow. I hope it slows down some and it is a little bit.  But likely company's will keep pumping out chips and that means more and more hash rate. Just the nature of the beast at this point.

well this is debatable, in the remote possibility that more users can acquire free electricity, the diff would skyrocket since the price would not matter anymore, they would mine all the way down to $1

I think that companies also don't have to do anything with it, as when new miners will come out, older ones will be drowned away somewhere by the miners who will move on with the latest ones...
Even if the electricity is free, I guess profits will still be the same as such places will possess more and more miners to kick the difficulty way above...

If the bitcoin price rises, the mining will continue even for the low efficiency miners. The difficulty will rise with the new miners.

But is paying almost nothing on electricity he has a huge advantage here he can use old gear, or new gear. At least once a month we get someone wanting to start a farm in Venezuela.  Most don't go through with it.

There are a lot of other factors that make it not the greatest in all aspects.