ANTMINER S2 Discussion and Support Thread

[PatMan]

If anyone has a spare $200 S4 coupon, please PM me.

PM'd.

[Blazed]

Is it possible to have the S2 use a constant fan RPM? I do not want to clip the blue wire and run 100% if possible. I was wanting to run them at say 65% all of the time...maybe set it in cgminer config or something?

[Rabinovitch]

My S2, overclocked to 1.1 Th running on kano's firmware, found a block. For about 2.5 monthes... If only I could know... 

I'm afraid that if I try to mine in solo now - it will not find any blocks for next 2-3 years....

[pawlo74]

Could some one tell me please, is it true that S2 has no chance for upgrade ?

[mewhoyou]

They did not give a specific no but as they mention "NOT RIGHT NOW!" so those S2 original buyer were given a 200 voucher. Unfortunately i purchase few second hand and they refuse to give me the ticket.

If we OC to 1.1TH, can we still utilize the current fan and psu?

[Blazed]

What issues are you guys having with your S2's? All of mine seem to run great...1.1TH with 0 issues. I did however replace the stock PSU with better ones.

[Rabinovitch]

If we OC to 1.1TH, can we still utilize the current fan and psu?

You better replace stock PSU with something like Corsair AX1200i. Sure you can use stock fans if the noise is not important for you (it will not work much louder when OCed), otherwise maybe Noctua NF-A14 PWM will be better choose. But be ready that the noise will not be reduced very much (but S2 will be quieter anyway), but the temperature will be 2-3 degrees higher.

[Bicknellski]

What issues are you guys having with your S2's? All of mine seem to run great...1.1TH with 0 issues. I did however replace the stock PSU with better ones.

Same here.

[Rabinovitch]

Where. Is. New Firmware. For S2. Bitmain promised to us. Huh? 

[pawlo74]

Where. Is. New Firmware. For S2. Bitmain promised to us. Huh? 

Where. Is. New upgrade for S2. Bitmain promised to us. Huh? 

[Rabinovitch]

True.   Even simply an upgrade would satisfy most of us. ) But they at least said something about an upgrade, but still keeping silence about FW.

[Micky25]

They did not give a specific no but as they mention "NOT RIGHT NOW!" so those S2 original buyer were given a 200 voucher. Unfortunately i purchase few second hand and they refuse to give me the ticket.

If we OC to 1.1TH, can we still utilize the current fan and psu?

This shouldn't be a surprise, the original buyers got the vouchers.

An upgrade for the S2 doesn't make sense for anyone I suppose. You would have to replace everything except the case.

[82kevin]

I posted this in a different discussion but I noticed that this one is labeled active, please excuse my forum faux pas. I'm hoping someone here can help me since I am a relatively new to using antminers. I have three s1's and two s3's and I just bought my first s2. I have successfully ssh into the s1's and s3's and have overclocked/underclocked without any problems, but for some reason I cannot edit the /etc/config in the s2. I open putty and enter root/admin and instead of seeing the normal welcome screen all I see is a line "root@antminer:~#", then I enter "/etc/config" and it says "-sh: /etc/config: not found". I have updated to the latest firmware from Bitmain and have rebooted several times. Any ideas what might be wrong?

[pawlo74]

They did not give a specific no but as they mention "NOT RIGHT NOW!" so those S2 original buyer were given a 200 voucher. Unfortunately i purchase few second hand and they refuse to give me the ticket.

If we OC to 1.1TH, can we still utilize the current fan and psu?

This shouldn't be a surprise, the original buyers got the vouchers.

An upgrade for the S2 doesn't make sense for anyone I suppose. You would have to replace everything except the case.

Why Bitmain promised an upgrade ? That's why I bought it.
Don't tell me that Bitmain didn't know or couldn't predict.
Now there is no promised upgrade instead he is giving me ridiculous $200, used to be $400.

[pawlo74]

I posted this in a different discussion but I noticed that this one is labeled active, please excuse my forum faux pas. I'm hoping someone here can help me since I am a relatively new to using antminers. I have three s1's and two s3's and I just bought my first s2. I have successfully ssh into the s1's and s3's and have overclocked/underclocked without any problems, but for some reason I cannot edit the /etc/config in the s2. I open putty and enter root/admin and instead of seeing the normal welcome screen all I see is a line "root@antminer:~#", then I enter "/etc/config" and it says "-sh: /etc/config: not found". I have updated to the latest firmware from Bitmain and have rebooted several times. Any ideas what might be wrong?

Man forget about it, I am telling you mining doesn't pay of, you will never get ROI unless you got free electricity.
 Sorry I've been burned so many times you can believe me. I live in UK and I'm in this since may this year.
 Regards.

[82kevin]

I posted this in a different discussion but I noticed that this one is labeled active, please excuse my forum faux pas. I'm hoping someone here can help me since I am a relatively new to using antminers. I have three s1's and two s3's and I just bought my first s2. I have successfully ssh into the s1's and s3's and have overclocked/underclocked without any problems, but for some reason I cannot edit the /etc/config in the s2. I open putty and enter root/admin and instead of seeing the normal welcome screen all I see is a line "root@antminer:~#", then I enter "/etc/config" and it says "-sh: /etc/config: not found". I have updated to the latest firmware from Bitmain and have rebooted several times. Any ideas what might be wrong?

Man forget about it, I am telling you mining doesn't pay of, you will never get ROI unless you got free electricity.
 Sorry I've been burned so many times you can believe me. I live in UK and I'm in this since may this year.
 Regards.

While I appreciate the advice, that doesn't even come close to answering my question. With my total ~2500 gh/s on eligius I am hoping to accumulate one bitcoin a month, and we have relatively cheap power in North GA USA making my power cost a little less than $100. At the current price of bitcoin that is a 300% return on my monthly maintenance costs, so I don't see it as a loosing proposition. Also I have been mining more as a hobby, but extra money is always nice. Has anyone encountered this problem with ssh into the s2? If so is there a fix to it? I would appreciate any technical help, I am well aware of the risk involved in mining any cryptocurrency.

[Micky25]

They did not give a specific no but as they mention "NOT RIGHT NOW!" so those S2 original buyer were given a 200 voucher. Unfortunately i purchase few second hand and they refuse to give me the ticket.

If we OC to 1.1TH, can we still utilize the current fan and psu?

This shouldn't be a surprise, the original buyers got the vouchers.

An upgrade for the S2 doesn't make sense for anyone I suppose. You would have to replace everything except the case.

Why Bitmain promised an upgrade ? That's why I bought it.
Don't tell me that Bitmain didn't know or couldn't predict.
Now there is no promised upgrade instead he is giving me ridiculous $200, used to be $400.

I'm not aware of a promise, but I remember they mentioned the possibility of a later upgradeability of the S2. As technology advances and the overall hashrate skyrockets, an upgrade doesn't make sense anymore, in my opinion. The $200 voucher is a more than fair compensation to this and, if you take a look at the behaviour of other ASIC miner companys, a really outstanding move of bitmain.

[pawlo74]

They did not give a specific no but as they mention "NOT RIGHT NOW!" so those S2 original buyer were given a 200 voucher. Unfortunately i purchase few second hand and they refuse to give me the ticket.

If we OC to 1.1TH, can we still utilize the current fan and psu?

This shouldn't be a surprise, the original buyers got the vouchers.

An upgrade for the S2 doesn't make sense for anyone I suppose. You would have to replace everything except the case.

Why Bitmain promised an upgrade ? That's why I bought it.
Don't tell me that Bitmain didn't know or couldn't predict.
Now there is no promised upgrade instead he is giving me ridiculous $200, used to be $400.

I'm not aware of a promise, but I remember they mentioned the possibility of a later upgradeability of the S2. As technology advances and the overall hashrate skyrockets, an upgrade doesn't make sense anymore, in my opinion. The $200 voucher is a more than fair compensation to this and, if you take a look at the behaviour of other ASIC miner companys, a really outstanding move of bitmain.

Thank you for your answer.
Really $200 that is just something better than nothing.
 Micky I can see you are trusted bitcointalk member so I have big respect to you. I think you shouldn't justify Bitmain this way.
That Bitmain is a bit better than other scam asic providers that is not explanation.
But I can understand why you stand by Bitmain side. I can see your signature so I assume you're involved in reselling hashing power. You shouldn't use your good reputation to promote some kind of scam as bitcoin asic miners is. Obviously as I said before all depends where your live and how much you pay for electricity but still asic miners are far overpriced.

[jelin1984]

Where is Kano firmware for s2 any link??

[Rabinovitch]

https://github.com/kanoi/cgminer-binaries/tree/master/AntS2