ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH

[hawkfish007]

Something good to report on the Dec 11 600M firmware. I was curious why one of my B1 S7 stopped hashing at a hosting place, controller was detecting only 1 fan. It turned out that one of the fan failed, and the miner automatically stopped hashing. Upon changing the fan, miner started hashing as new.

You do not need this castrated software for that. Previous software will do the same.

Hmmm, interesting, didn't know that. I remember running a B1 with 1 fan. Bitmain even recommended pointing an exrernal fan toward the miner while I RMA and wait for a replacement.

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[lyth0s]

Even with free electricity it still won't break even.

If they are betting on Bitcoin price going up, they could just directly buy bitcoin and hold.

And where is the fun doing that, it is not always making $. For buy and hold, I have AAPL and FB.

Neither of which offer exposure to bitcoin, but okay.

[rockyforever]

Even with free electricity it still won't break even.

If they are betting on Bitcoin price going up, they could just directly buy bitcoin and hold.

And where is the fun doing that, it is not always making $. For buy and hold, I have AAPL and FB.

Neither of which offer exposure to bitcoin, but okay.

Not sure why every page has someone commenting on ROI. If you chose not to buy a miner good for you! But don't throw calculations and your opinion in these threads to boost your own reason not to buy.

It's like convincing urself not to buy the newest console because it will be cheaper in a year. Awesome, you got a cheaper console a year after released but missed the fun of being part of the community that bought them and got to experience the positives and negatives so when you do buy in a year, you have a plethora of information to make a well educated purchase. Thats the risk of buying new.

In the end, no one cares. Be part of it or dont but don't insult the intellegience of others on why they bought.

[thedreamer]

Even with free electricity it still won't break even.

If they are betting on Bitcoin price going up, they could just directly buy bitcoin and hold.

And where is the fun doing that, it is not always making $. For buy and hold, I have AAPL and FB.

Neither of which offer exposure to bitcoin, but okay.

Not sure why every page has someone commenting on ROI. If you chose not to buy a miner good for you! But don't throw calculations and your opinion in these threads to boost your own reason not to buy.

It's like convincing urself not to buy the newest console because it will be cheaper in a year. Awesome, you got a cheaper console a year after released but missed the fun of being part of the community that bought them and got to experience the positives and negatives so when you do buy in a year, you have a plethora of information to make a well educated purchase. Thats the risk of buying new.

In the end, no one cares. Be part of it or dont but don't insult the intellegience of others on why they bought.

Well said. It's like when people comment about some of us with free power. Instead they should be more concerned with their wives or girlfriends banging their brother than bitch and moan about being jealous of people who really have free power.

[Biodom]

Even with free electricity it still won't break even.

If they are betting on Bitcoin price going up, they could just directly buy bitcoin and hold.

And where is the fun doing that, it is not always making $. For buy and hold, I have AAPL and FB.

Neither of which offer exposure to bitcoin, but okay.

Not sure why every page has someone commenting on ROI. If you chose not to buy a miner good for you! But don't throw calculations and your opinion in these threads to boost your own reason not to buy.

It's like convincing urself not to buy the newest console because it will be cheaper in a year. Awesome, you got a cheaper console a year after released but missed the fun of being part of the community that bought them and got to experience the positives and negatives so when you do buy in a year, you have a plethora of information to make a well educated purchase. Thats the risk of buying new.

In the end, no one cares. Be part of it or dont but don't insult the intellegience of others on why they bought.

Well said. It's like when people comment about some of us with free power. Instead they should be more concerned with their wives or girlfriends banging their brother than bitch and moan about being jealous of people who really have free power.

Now I get it why people are so pissed after the holidays, or so it seems  .
However, from the genetics point of view brother "banging" is harmless, since he has more or less similar genes (granny's and grandaddy's genes rearranged a bit differently, that's all), even if it comes to that.

[rockyforever]

Even with free electricity it still won't break even.

If they are betting on Bitcoin price going up, they could just directly buy bitcoin and hold.

And where is the fun doing that, it is not always making $. For buy and hold, I have AAPL and FB.

Neither of which offer exposure to bitcoin, but okay.

Not sure why every page has someone commenting on ROI. If you chose not to buy a miner good for you! But don't throw calculations and your opinion in these threads to boost your own reason not to buy.

It's like convincing urself not to buy the newest console because it will be cheaper in a year. Awesome, you got a cheaper console a year after released but missed the fun of being part of the community that bought them and got to experience the positives and negatives so when you do buy in a year, you have a plethora of information to make a well educated purchase. Thats the risk of buying new.

In the end, no one cares. Be part of it or dont but don't insult the intellegience of others on why they bought.

Well said. It's like when people comment about some of us with free power. Instead they should be more concerned with their wives or girlfriends banging their brother than bitch and moan about being jealous of people who really have free power.

Now I get it why people are so pissed after the holidays, or so it seems  .
However, from the genetics point of view brother "banging" is harmless, since he has more or less similar genes (granny's and grandaddy's genes rearranged a bit differently, that's all), even if it comes to that.

At least it stays within the family! :-)

[elokk]

How will this miner ever break even? With no difficulty increases and near free electricity at $0.02/kWh (China subsidized rates) it would still take 122 days to break even, but we all know that difficultly will have skyrocketed by then.


http://www.coinwarz.com/calculators/bitcoin-mining-calculator/?h=4700.00&p=1300.00&pc=0.02&pf=0.50&d=93448670796.32380000&r=25.00000000&er=431.06380000&hc=1250.00

I'm just trying to wrap my head around who could possibly have any benefit from these miners.

buyers are probably betting on btc price increase and they are spending $$ via instant bitcoin purchase on coinbase, then immediately spending on miners. This way, they essentially spent $$, but IF bitcoin appreciates and they will eventually sell mined bitcoin, they will make profit in $$.
It is obvious that they will not make their price in BTC, unless your electricity is free or almost free.

Even with free electricity it still won't break even.

If they are betting on Bitcoin price going up, they could just directly buy bitcoin and hold.

On the surface buying/holding btc may seem like the obvious way to invest in bitcoin but what would happen if the rest of us stop mining and let it further centralize???  I believe in civil disobedience so I will continue in the mining hardware arms race  

Besides, buying and holding is no fun anyways

[lyth0s]

How will this miner ever break even? With no difficulty increases and near free electricity at $0.02/kWh (China subsidized rates) it would still take 122 days to break even, but we all know that difficultly will have skyrocketed by then.


http://www.coinwarz.com/calculators/bitcoin-mining-calculator/?h=4700.00&p=1300.00&pc=0.02&pf=0.50&d=93448670796.32380000&r=25.00000000&er=431.06380000&hc=1250.00

I'm just trying to wrap my head around who could possibly have any benefit from these miners.

buyers are probably betting on btc price increase and they are spending $$ via instant bitcoin purchase on coinbase, then immediately spending on miners. This way, they essentially spent $$, but IF bitcoin appreciates and they will eventually sell mined bitcoin, they will make profit in $$.
It is obvious that they will not make their price in BTC, unless your electricity is free or almost free.

Even with free electricity it still won't break even.

If they are betting on Bitcoin price going up, they could just directly buy bitcoin and hold.

On the surface buying/holding btc may seem like the obvious way to invest in bitcoin but what would happen if the rest of us stop mining and let it further centralize???  I believe in civil disobedience so I will continue in the mining hardware arms race  

Besides, buying and holding is no fun anyways

That is very admirable of you, thanks.

[fr4nkthetank]

All these calculations are worthless.  You forget you can sell your miner.  In any case, an s1 today is still profitable with decent electricity rates with undervolting (I<m assuming it still it, maybe someone knows for real, im tired dont feel like doing some math).  also my miner heats my garage/house, so you have to factor that in too. 

Also its a lot more fun than a simple garage heater, which costs money for heat.

[marvykkio]

Fatemi Capire, io ho Comprato 3x S7 + 3X PSU da bitmain, in Quanto tempo Fare il mio roi?

[Xian01]

buyers are probably betting on btc price increase and they are spending $$ via instant bitcoin purchase on coinbase, then immediately spending on miners. This way, they essentially spent $$, but IF bitcoin appreciates and they will eventually sell mined bitcoin, they will make profit in $$.
It is obvious that they will not make their price in BTC, unless your electricity is free or almost free.

Buying an S7, or any miner right now, is a losing proposition if you are doing this (buying on coinbase to convert to a miner BTC purchase). Just buy the BTC and HODL. Don't bother buying miners at current prices.

[VirosaGITS]

buyers are probably betting on btc price increase and they are spending $$ via instant bitcoin purchase on coinbase, then immediately spending on miners. This way, they essentially spent $$, but IF bitcoin appreciates and they will eventually sell mined bitcoin, they will make profit in $$.
It is obvious that they will not make their price in BTC, unless your electricity is free or almost free.

Buying an S7, or any miner right now, is a losing proposition if you are doing this (buying on coinbase to convert to a miner BTC purchase). Just buy the BTC and HODL. Don't bother buying miners at current prices.

Buying an S5 and ROI in 3 months sound pretty nice right now, actually. I'd imagine prices would be in the 250$ range by now, with how crazy the diff is going. Meanwhile the S7 look like 4~5 ROI depending on how high the difficulty keep going at.

[marvykkio]

the fact remains that bitmain has a poor customer service, administrative side

[dontetris]

One of my S7's control board died, it is under warranty (still in 3 months), is it possible they want to compensate it with 0.25BTC and not to change/repair it?

First I contacted Gologuzan's team (zendesk support), after discussing the situation and making me try the machine with another control board they forwarded me to info@bitmaintech.com and now there they are asking for my bitcoin address desperately and ignoring my question what this is about... For a "compensation" of 0.25BTC.

I wouldn't mind getting 0.25BTC for late Batch 1 shipments, but not for the friggin control board lol... I prefer a working S7. What do you guys think? Is this the "warranty"?

[vortexz]

0.25 compensation for one board ? so if the whole miner dies they pay you 0.75 btc and that/s it ?
no freaking way mate

[dontetris]

0.25 compensation for one board ? so if the whole miner dies they pay you 0.75 btc and that/s it ?
no freaking way mate

The 3 hashing boards are working perfectly (tried it with another control board), the control (beagle) board died... Well actually it didn't completely die, the ethernet port doesn't seem to react to anything, other leds are lighting up on the board...

But it's useless without a control board...

[AriesIV10]

0.25 compensation for one board ? so if the whole miner dies they pay you 0.75 btc and that/s it ?
no freaking way mate

The 3 hashing boards are working perfectly (tried it with another control board), the control (beagle) board died... Well actually it didn't completely die, the ethernet port doesn't seem to react to anything, other leds are lighting up on the board...

But it's useless without a control board...

In the short term to keep you running, you can lay this bad S7 and another good S7 on their sides close to one another and connect the hashingboards of the bad S7 to the ControlBoard of the good S7.  Just a thought for you.

[philipma1957]

0.25 compensation for one board ? so if the whole miner dies they pay you 0.75 btc and that/s it ?
no freaking way mate

no it was .25 for the controller   which is a fair price for a controller.



the real problem is he needs a freaking controller and they did not send him a new controller.

[dontetris]

0.25 compensation for one board ? so if the whole miner dies they pay you 0.75 btc and that/s it ?
no freaking way mate

The 3 hashing boards are working perfectly (tried it with another control board), the control (beagle) board died... Well actually it didn't completely die, the ethernet port doesn't seem to react to anything, other leds are lighting up on the board...

But it's useless without a control board...

In the short term to keep you running, you can lay this bad S7 and another good S7 on their sides close to one another and connect the hashingboards of the bad S7 to the ControlBoard of the good S7.  Just a thought for you.

Thanks, I was thinking the same, I have 3 S7's total and I could run this with one paired, but that's only a temporary solution and this device is under warranty, so I expect them to act according to that... That warranty period of 3 months and their "rules" with the fallen off heatsinks (which is a manufacturing problem) voiding warranty etc are a joke anyway, they should at least be decent in such cases where there is a clearly defective part...

[GSpgh]

got an e-mail from Bitmain asking for a BTC address... batch 1 compensation might be coming "soon"