ANTMINER S4 Discussion and Support Thread

[sloopy]

I want to throw this out there as a reminder to anyone.
I had a static discharge with an S4 which isn't kept in my mining area, it is kept closer to me for heat.
Over 6 hours or so it lost hash, I'd forgotten about the static, I rebooted and everything was good.
4 hours, same thing, less and less until it wouldn't run at all.

I remembered the static.
I pulled everything down, cleaned, inspected, tested the PSU, everything looked good.
I could not find a burn mark, finished cleaning.

She has been running for two hours now. Cover is still off. I think the static did something to make a connection poor.
I'd previously checked power, and swapped power.

It would show 2TH+ on the average, the 5 sec would ramp up with the fans, but after X amount of time the 5 sec would be 0 and the average might be 1300, or 1500. I think it was the PSU making a poor connection.

I'm not out of the woods yet, but it is looking up and I thought I'd share if that helps anyone.
Sometimes they want to be straightened out and moved around a bit.

[DJSniperwolf]

I have 4 spare S4 hash boards if you'd like to repair your S4. Pm me if interested.

Virosa, /etc/init.d/cgminer.sh

Do you still have these Hash boards?  I received an S4 that has 2, possibly 3 bad Hash boards that need replacing.

Yes, still available.

Great, sorry for the late response as I have been trying to get my little mining rig in place.  How much are you asking for one or two of them?  Thanks!

[Wheaties466]

having some issues with an antminer s4


https://i.imgur.com/mm4mS2r.png


https://i.imgur.com/bWiB9Ce.png

so I pretty much figured out that I have a bad IO board by putting in a good working one into this miner from another working miner. I am having trouble locating anything on fixing or replacing this board. Anyone have any insight on this?

Your pics lack the asic status.  Are all asics showing o's, any - or x's.  I do believe there is an updated firmware version you could upload to the S4.

My only troubles I had pointed to the psu which can easily be the cause of everything.  What does the front panel screen show it hashing at?

I would like to see more aswell.  Please share status screens.

I have never seen someone stack like that.  It's unique to say the least. But amazing if that works with that setup.  Are you running downclocked or standard freqs?

Basically there is nothing more to see, Below what that page should be is the board status. There is nothing that shows up below that. the results I am getting are the same results that would happen if you unplugged the ASICs from the controller board. the only thing that appears to be working is the BB board.

any comments or suggestions are helpful.

[thebonenz]

My S4 wont start after we had a power outage any ideas?

Is my PSU dead?  

I just saw that the supplier had a 15amp cable and not a 16 amp would that have any effect?

I've tried every search I can think of on the forums but can't find an answer.

I've tried swapping out the cables but it still looks like no power is going to the unit. Is there a walk through anywhere to check your PSU?

[hurricandave]

unplug the PSU and stick a lamp in the outlet. Is there any Light? ... No... the problems on your supply side..../  ...Yes...try a different PSU in the miner and see if you can get one board to hash.

[thebonenz]

unplug the PSU and stick a lamp in the outlet. Is there any Light? ... No... the problems on your supply side..../  ...Yes...try a different PSU in the miner and see if you can get one board to hash.

Thanks but I don't have another PSU to test out :/

But it does sound most likely to be the PSU so guess I'll have to try and replace it!

[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