ANTMINER S4 Discussion and Support Thread

[Prelude]

All of my S4s are sold too, they're leaving my mine tomorrow afternoon.

Any firmware that isn't Oct or earlier has no actual voltage control. The changes you make in the interface do not get applied.

If anyone has an S7 coupon that they don't plan on using, I'd like to have it. Would be greatly appreciated! Bitmain user ID = Prelude

[1713853001]

1713853001

[notlist3d]

All of my S4s are sold too, they're leaving my mine tomorrow afternoon.

Any firmware that isn't Oct or earlier has no actual voltage control. The changes you make in the interface do not get applied.

If anyone has an S7 coupon that they don't plan on using, I'd like to have it. Would be greatly appreciated! Bitmain user ID = Prelude

Before the S7 hit's customers I think it's a good time for selling S4's unless you have very cheap electricity.  They honestly are great machines and I LOVE the lcd.  Just walking past you can see hashing rate which is pretty nice.

Only thing that was not fun is I like to provide customers a nice looking miner.  Cleaning the miners took a little time by time I blew it out and got fan's cleaned.  But hopefully customers will be happy with the extra effort.

[727miner]

All of my S4s are sold too, they're leaving my mine tomorrow afternoon.

Any firmware that isn't Oct or earlier has no actual voltage control. The changes you make in the interface do not get applied.

If anyone has an S7 coupon that they don't plan on using, I'd like to have it. Would be greatly appreciated! Bitmain user ID = Prelude

Before the S7 hit's customers I think it's a good time for selling S4's unless you have very cheap electricity.  They honestly are great machines and I LOVE the lcd.  Just walking past you can see hashing rate which is pretty nice.

Only thing that was not fun is I like to provide customers a nice looking miner.  Cleaning the miners took a little time by time I blew it out and got fan's cleaned.  But hopefully customers will be happy with the extra effort.

Agreed, I would have hit you up for one but I bought one last week from a guy locally in my area. It works ok but cosmetically it had some rust on all of the fan covers on the outside. I asked him about it and he said he ran it outside in the humid Florida weather  .

[VirosaGITS]

Where exactly do you put the flag --bitmain-homemode ?

Edit: I got off my lazy ass and added it to the cgminer.conf that was in /config instead of etc/config. I tried json format "bitmain-homemode" : true and it kinda worked.

But now it mine at 75% speed, even though freqs are still at 200, is there a way around this? If i change freq to compensate or reboot the bitmain-homemode flag get overwritten? I'm guessing i'm not doing it the right way?

[lovenlifelarge]

Selling my S4 for AU$1000+ postage... I'm in australia...

Pm me


This item has now been sold

[Laviathon]

I was updating the configuration on my s4 with a new server.  Clicked save and now all the settings went blank.  I will not let me save anything to do with the miner configuration..  I reset back to factory and it started mining with the factory setting but when i tried to put my pool information back in it did the same thing.

Help!

[notlist3d]

I was updating the configuration on my s4 with a new server.  Clicked save and now all the settings went blank.  I will not let me save anything to do with the miner configuration..  I reset back to factory and it started mining with the factory setting but when i tried to put my pool information back in it did the same thing.

Help!

You could always flash SD card.  It's kinda the save if it is really messed up.

You could also try flashing it with same firmware just to see if it's a software problem.  It is odd to not be able to  set the settings.

[blindminer]

This is funny but some water splashed to one of my antminer s4s
all of the chains burned:


but one them still working(hashing). this is a picture of it:

is it safe to run after this burned spot?
thanks,

[notlist3d]

This is funny but some water splashed to one of my antminer s4s
all of the chains burned:
img removed save space

but one them still working(hashing). this is a picture of it:
img removed save space
is it safe to run after this burned spot?
thanks,

It's honestly hard to tell without seeing entire thing.  You might ask bitmain in a ticket - https://bitmain.zendesk.com/hc/en-us .  I would love their anwser.

I would say if you can just count it as a loss it's some pretty bad damage. If you are not able to watch it as it mines take temp reading. But again I would count as a loss you dodged a fire once.... you might not get as lucky second time.

[not.you]

This is funny but some water splashed to one of my antminer s4s

Holy guacamole!  When you say "some water" and "splashed" what does that mean?  This looks like a lot of water poured into it.

[notlist3d]

This is funny but some water splashed to one of my antminer s4s

Holy guacamole!  When you say "some water" and "splashed" what does that mean?  This looks like a lot of water poured into it.

I'm guessing maybe rain splashing from window?   Or a big water split?

I would like to hear OP say story now that I think about it.  I have never seen this  before on S4 that I remember.

[blindminer]

This is funny but some water splashed to one of my antminer s4s

Holy guacamole!  When you say "some water" and "splashed" what does that mean?  This looks like a lot of water poured into it.

I'm guessing maybe rain splashing from window?   Or a big water split?

I would like to hear OP say story now that I think about it.  I have never seen this  before on S4 that I remember.

Sorry,I was out of town.
My English is not good to explain but my asic was near a water pipe and it was broken for no reason like this image:

It was continuing splash water to my asic for about 5 hours! I checked from my camera.
I contact with bitmain but no answer yet.

[VirosaGITS]

Well, now that someone officially tested whether ASICs are water proof or not. We can all go about carefully keeping away from water hazards!

[lovenlifelarge]

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?

Please be careful taking advice from Meech as he doesn't have a kill o watt & doesn't run tests on his own machine to give u the right advice u need... Oh & did i mention his S4 was in getting fixed last time we checked in...

Please read the comments on the page or so before this & make up ur own mind as to weather u take his advice or not..

Leave your tasteless comments out of the threads and yes I have a kill-a-watt, 3 exactly and a sound meter.  My S4 is fixed now, thanks to Yoshi.  What have you offered on the forums with your wisdom? 

Here is my wisdom Meech

Just wanted to update u all on my latest findings for the S4 for under clocking/volting...


Best underclock using sept 04 2014 image

Running on 240 volts (In Australia)

Using Freq : 100 & Volt : 0670

I get around 980gh @ 640w - (Tested with a kill o watt)

---------------------------------------------------------------

https://bitmain.zendesk.com/hc/en-us/article_attachments/200965819/s4sep26.img.gz

u'll need to unzip this & use hdd raw copy to image this to ur sd card (U'll need to take the sd card out of the miner & do this on ur pc)

This will give u undervolting again...

Now i know this uses an old cgminer & is known to have issues so do this..

---------------------------------------------------------------

This will install Smit's low fan firmware (To keep noise to absolute min) & cgminer 4.9. It will also survive a reboot...

Connect to your S4 via SSH. We all know that username is "root", password is "admin". Also we all know that we need use PuTTY software

Then we get into /mnt/mmc1 folder:

Code:
cd /mnt/mmc1

Rename initramfs.bin.SD to initramfs.bin.SD.orig (or with any name convenient for you) to make rollback possible:

Code:
mv initramfs.bin.SD initramfs.bin.SD.orig

Then we can download those tho images for slow fans & cgminer 4.9

Code:
wget http://95.84.240.160:8080/s4_symlink/S4_cgminer_symlink_low_fan.initramfs.bin.SD -O initramfs.bin.SD


Now we are ready to download cgminer. Note that after above steps we have to put cgminer's files to /config/cgminer folder, otherwise mining will not start.

We can now download and put cgminer to the necessary folder with this code:

Code:
cd /config && wget http://95.84.240.160:8080/s4_symlink/cgminer_4.9.0_S4 -O cgminer && chmod +x cgminer

Now type exit & reboot ur machine.

Any problems please ask or pm..

PLEASE BE AWARE - The slow fan firmware should only be used at the underclocked & undervolted settings... U could start a fire if u use this at full speed!!

----------------------------------------------------------------------

UPDATE

If u can get the J7 board to set the voltages correct on startup (This requires a kill o watt or similar)

To do this u'll need to start & restart the machine till the kill o watt tells u the right voltage / watts...

The amount of restarts is random so just keep trying it till it sets right.

Old settings as above with J7 on the loose will give 640w

With the J7 running correctly it will be 600w, (Tested with a kill o watt) That's another 40w saving....

-----------------------------------------------------------------------------

Hey Bitmain I believe i finally got ur 0.6w u were original boasting about, Just funny it took ur new product to come to market before

this ever happened..

-----------------------------------------------------------------------------

I believe this is the maximum savings we will get out of the S4 until someone does a hardware hack...

Be interesting to see if anyone can replicate or better these settings!

Big thanks goes to : sjenja who worked out the J7 problem...

[notlist3d]

This is funny but some water splashed to one of my antminer s4s
all of the chains burned:
(removed images)
is it safe to run after this burned spot?
thanks,

I have to ask what did bitmain say to your ticket or email about it being safe?  I really want to hear response to it.

I think they will nicely say no on running, but wanted to hear.

[blindminer]

This is funny but some water splashed to one of my antminer s4s
all of the chains burned:
(removed images)
is it safe to run after this burned spot?
thanks,

I have to ask what did bitmain say to your ticket or email about it being safe?  I really want to hear response to it.

I think they will nicely say no on running, but wanted to hear.

Oh sorry,  I forgot to reply.
Yes they said that is not safe to run.
But it's running for almost a week and no problem. i put it in a safe palace and pointed to solo.ckpool !

[notlist3d]

This is funny but some water splashed to one of my antminer s4s
all of the chains burned:
(removed images)
is it safe to run after this burned spot?
thanks,

I have to ask what did bitmain say to your ticket or email about it being safe?  I really want to hear response to it.

I think they will nicely say no on running, but wanted to hear.

Oh sorry,  I forgot to reply.
Yes they said that is not safe to run.
But it's running for almost a week and no problem. i put it in a safe palace and pointed to solo.ckpool !

When you say running what does the status screen look like?  If you are able to please post status sowing blades and chips.

I just had not seen one like this before.

[Prelude]

OUCH @ the water damage. Guess the PSU doesn't have working protection circuits to trip off when needed.

[blindminer]

This is funny but some water splashed to one of my antminer s4s
all of the chains burned:
(removed images)
is it safe to run after this burned spot?
thanks,

I have to ask what did bitmain say to your ticket or email about it being safe?  I really want to hear response to it.

I think they will nicely say no on running, but wanted to hear.

Oh sorry,  I forgot to reply.
Yes they said that is not safe to run.
But it's running for almost a week and no problem. i put it in a safe palace and pointed to solo.ckpool !

When you say running what does the status screen look like?  If you are able to please post status sowing blades and chips.

I just had not seen one like this before.

I think you didn't see this line on my first post : "but one them still working(hashing)."
I just ran one blade with a little burn spot:





Others are completely useless.

[VirosaGITS]

I'll probably be selling my S4s and S4+s soon if anyone is interested. Located in Montreal.

Thanks for the screen. Doesn't overclocking the unit overload the PSU?

Also the temps are surprisingly low, are you able to lower the fan speed to reduce noise?

If they were stock PSUs they'd be overloaded, yes. I'm running them with 2000w server PSUs, so it's fine. I wouldn't go past 212MHz on the stock PSU, and only if running on 240v.

The temps are probably artificially low. I revered the air flow by flipping the fans, so the temp sensor is likely being hit with cooler air than normal. I cold always slow down the fans with --bitmain-homemode, but I don't bother since they're not running in my house.

Where would be the right place to input that command? I probably won't need it since i found out you can flash an old version to the S4, then add smit's low fan, then install the last version cgminer version and keep Volt control.

Also, i'm thinking of grabbing another S4 now, so a Canadian seller would be pretty nifty.