ANTMINER S4 Discussion and Support Thread

[altcointalk14]

Has anyone had this problem:?

I can not get the S4 to hash.

I reflash image and it comes up with bitmain config settings and it will hash 2TH/s

I enter my settings and the pools say alive, many other S4 on same config work fine, but zero or 5Gh/s.

Any ideas?

[vamosrafa]

Anyone run into the issue of the S4 with a blank screen and LED and ethernet activity lights that go from blinking to off? I am guessing it is the PCB or ethernet port.

Does Bitmain sell replacement PCBs?

[altcointalk14]

Anyone run into the issue of the S4 with a blank screen and LED and ethernet activity lights that go from blinking to off? I am guessing it is the PCB or ethernet port.

uplug power
eject/insert/eject/insert sd card
press down on controller make sure it is seated good
start with no ethernet connected
plug in and start
when starting/power on
between the case and top of ethernet connection you should see a blue light.  If no blue light in 10 sec, your controller is not turning all the way on.

If you see a blue light inside, wait till it starts to blink then connect ethernet cable.

If no blue light in that gap it is your controller connection.

[wikkidtt]

I am finding conflicting info but is there any issue with me running my s4 with 37degree temps. Thats what the 2nd blade is all others are 34degrees.

[Cyper_BLC]

as i promised i share
      J7 Chain1 Problem Solving Procedure - TURK isi - By Turgan      

You can see pic12F1822 mcu purpose is adjusting I2C voltage tree from the controller FPGA serial data,
but our FPGA program is buggy and it cant send voltage data to J7 connected board.
Now we make a trick and we take it a clean data from right board and put it on to left board.
Using P1 ICSP connector pin 5. Remove R25 jumper resistor on left board then make a jumper wire between P1 pin5.
Connect Left board to J7. Others not important. this is simple.
Finally we can controll all of hash boards and we make s4's profitable (look at my oldest s4 posts for voltage settings)



Have a nice day

[Wheaties466]

just wanted to let everyone know that for a second time I cleaned all the contacts on my S4, completely disassembled it. Re assembled it and it is now working.

[Prelude]

as i promised i share
      J7 Chain1 Problem Solving Procedure - TURK isi - By Turgan      

You can see pic12F1822 mcu purpose is adjusting I2C voltage tree from the controller FPGA serial data,
but our FPGA program is buggy and it cant send voltage data to J7 connected board.
Now we make a trick and we take it a clean data from right board and put it on to left board.
Using P1 ICSP connector pin 5. Remove R25 jumper resistor on left board then make a jumper wire between P1 pin5.
Connect Left board to J7. Others not important. this is simple.
Finally we can controll all of hash boards and we make s4's profitable (look at my oldest s4 posts for voltage settings)



Have a nice day

Thanks for sharing! Wish I would have known this when I still had S4s. 

[notlist3d]

as i promised i share
      J7 Chain1 Problem Solving Procedure - TURK isi - By Turgan      

You can see pic12F1822 mcu purpose is adjusting I2C voltage tree from the controller FPGA serial data,
but our FPGA program is buggy and it cant send voltage data to J7 connected board.
Now we make a trick and we take it a clean data from right board and put it on to left board.
Using P1 ICSP connector pin 5. Remove R25 jumper resistor on left board then make a jumper wire between P1 pin5.
Connect Left board to J7. Others not important. this is simple.
Finally we can controll all of hash boards and we make s4's profitable (look at my oldest s4 posts for voltage settings)



Have a nice day

Thanks for sharing! Wish I would have known this when I still had S4s. 

Same here something like this and the price going up on BTC would have made a decent difference.   I cannot be to sad as I ROI'ed and ultimatly that is the goal of every miner.

But if I would have done this and not sold when BTC was around 230 I could have squeezed a little bit more out of it.  And we always want a little more .

[RealMalatesta]

Seems I'm always the guy who has bad luck...

I have currently four S4 running. Well, not correct: They were running.

First, all of them had a bad PSU. They were replaced, since then they worked pretty good.

Now, all the sudden, all of them do not come up again completely.

Four of the S4 just turn on, the LED stays blank, no connection, no hashing.

The fifth of the S4 started to hasth with 50 % but nothing is shown on the LED which is just blank, but obviously powered.

What worries me is that all five all the sudden started to behave like this... has anyone seen a similar behavior?

[notlist3d]

Seems I'm always the guy who has bad luck...

I have currently four S4 running. Well, not correct: They were running.

First, all of them had a bad PSU. They were replaced, since then they worked pretty good.

Now, all the sudden, all of them do not come up again completely.

Four of the S4 just turn on, the LED stays blank, no connection, no hashing.

The fifth of the S4 started to hasth with 50 % but nothing is shown on the LED which is just blank, but obviously powered.

What worries me is that all five all the sudden started to behave like this... has anyone seen a similar behavior?

Did you have any surges or anything wierd on power circuit?  To have  4 separate S4's stop mining makes it sound like it's a shared issue.

I would look into power make sure everything is ok.  Next look into connection make sure each cord is active on network.  It does worry me that none are working normal.  Did  you have surge protectors on them?

[RealMalatesta]

Seems I'm always the guy who has bad luck...

I have currently four S4 running. Well, not correct: They were running.

First, all of them had a bad PSU. They were replaced, since then they worked pretty good.

Now, all the sudden, all of them do not come up again completely.

Four of the S4 just turn on, the LED stays blank, no connection, no hashing.

The fifth of the S4 started to hasth with 50 % but nothing is shown on the LED which is just blank, but obviously powered.

What worries me is that all five all the sudden started to behave like this... has anyone seen a similar behavior?

Did you have any surges or anything wierd on power circuit?  To have  4 separate S4's stop mining makes it sound like it's a shared issue.

I would look into power make sure everything is ok.  Next look into connection make sure each cord is active on network.  It does worry me that none are working normal.  Did  you have surge protectors on them?

The only thing that happened was that the power for the whole mine was switched off for about an hour. During this time, a 17 kV-line was removed. However, this shouldn't result in a spike. And even if it did: Once the S4s are without power, I always have to switch them on, i.e. other devices which are on the same circuit probably would have had some failure, too.
I'll investigate the machines and probably first try to put some new firmware image on the SD-cards... Power line, network, network cables all are okay.

[Wheaties466]

Does anyone have an experience on installing any additional linux programs on the BBB sd card?

[notlist3d]

Does anyone have an experience on installing any additional linux programs on the BBB sd card?

What are you wanting to add to it?  I mean there are some who have done custom firmware out there like smit.

But I'm not sure what else you would want to be installing.

[altcointalk14]

Does anyone know the pinout on the BBB controller to check for power?

I have several units where the green lights come on, the ethernet lights work/on, but the display stays blue; fans stay at 100%; & the blue lights on the BBB controller never come on.  I am assuming dead controller.  I swapped many working SD cards but no luck.  Thanks

[Wheaties466]

Does anyone have an experience on installing any additional linux programs on the BBB sd card?

What are you wanting to add to it?  I mean there are some who have done custom firmware out there like smit.

But I'm not sure what else you would want to be installing.

I've had some trouble with the miner locking up when changing the configuration on my S4. I wanted to install this, https://github.com/haakonnessjoen/MAC-Telnet

it would enable me to connect to another device on layer 2(which is still active when the miner locks up).

I am able to SSH into the device but it doesn't even allow any of the software to be upgraded. I'm assuming this is a security feature since upgrading could cause incompatibilities.

[phatkiller]

Not sure if this will help anyone but I'll share just incase it can.  Recently my Antminer S4 stopped working.  I bought it in February this year and have used it lightly so i didn't understand what was wrong.  

This problem only started after I updated to the latest software on Bitmain's website:
https://www.bitmaintech.com/support.htm?pid=00720140930114518599JXGHWWD80660

Before I updated I was able to connect my Antminer S4 to any outlet with 120v and 15 amp breaker everything would work on occasion the breaker would trip.

Since the update the Antminer S4 will only work with an outlet that has a 20 amp breaker or higher; anything less will not let the hashing boards to turn on.

not sure if this is a part of the update or if my s4 is just being smart and not allowing 15 amp breaker to power it or who knows either way if ur having issues maybe try that.

[P4ndoraBox7]

edit ; 218.75 Frequency
0725 Voltage
Not the stock powersupply, second one changed by Bitmain

Temp between 52 and 59, will be even lower in the next weeks.


Can I rise the frequency or voltage ? I'm not sure of doing it and prefer to ask before I make something burn.

Thank you.

[Prelude]

I assume that's a typo and you meant 225MHz. With the stock bitmain PSU, no, you can't go further. In fact I'd suggest not going past 218MHz with stock, or even 212.

[P4ndoraBox7]

Oups, 218.75**** 425 is my S5

And like I said, no, it's not the stock PSU, it's the one they changed. I opened my S4 and noticed it was the new, but I dont find how much Watt and Frequency I can use.

[Prelude]

Oups, 218.75**** 425 is my S5

And like I said, no, it's not the stock PSU, it's the one they changed. I opened my S4 and noticed it was the new, but I dont find how much Watt and Frequency I can use.

Doesn't matter if you're on the 10th replacement (Which would be possible with S4 PSUs lol) it's still the stock PSU. It's complete garbage, and will eventually fail. I'd stick to no more than 212 if on 120v, or 218 if on 240v.