ANTMINER S4 Discussion and Support Thread

[Amph]

Hi Everyone,

I think my S4 PSU died this morning, I have only had the machine 3 months or so and i think the psu is dead, could anybody help me figure out if it is and how i go about replacing the PSU

I woke up this morning to find one breaker on my board had tripped, I checked the S4 and the PSU doesnt show any signs of life at all, I have checked the fuse and thats ok, but the psu does not boot at all, is there anything i can do to fault find.

I know i had one of the newer PSUs that didnt have the issue the first batch did, and the S4 has been running flawlessly since i purchased it, just a bit depressing to see one of my best machines go down

Any help would be really appreciated.

cheap psu can cause that, never buy a cheap psu, is the important component, you can try to return it but in the end i would suggest a corsair or seasonic

850w should be enough for the s4

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[NotFuzzyWarm]

Hi Everyone,

I think my S4 PSU died this morning, I have only had the machine 3 months or so and i think the psu is dead, could anybody help me figure out if it is and how i go about replacing the PSU

I woke up this morning to find one breaker on my board had tripped, I checked the S4 and the PSU doesnt show any signs of life at all, I have checked the fuse and thats ok, but the psu does not boot at all, is there anything i can do to fault find.

I know i had one of the newer PSUs that didnt have the issue the first batch did, and the S4 has been running flawlessly since i purchased it, just a bit depressing to see one of my best machines go down

Any help would be really appreciated.

cheap psu can cause that, never buy a cheap psu, is the important component, you can try to return it but in the end i would suggest a corsair or seasonic

850w should be enough for the s4

850w for an s4???
Hate to tell ya this but my s4's running stock speed and Vcore draw between 1,250 and 1,375w from the wall as reported by my UPS's.
My S2's report 1,039w again @ stock speeds.

[cdjbolton]

Hi Everyone,

I think my S4 PSU died this morning, I have only had the machine 3 months or so and i think the psu is dead, could anybody help me figure out if it is and how i go about replacing the PSU

I woke up this morning to find one breaker on my board had tripped, I checked the S4 and the PSU doesnt show any signs of life at all, I have checked the fuse and thats ok, but the psu does not boot at all, is there anything i can do to fault find.

I know i had one of the newer PSUs that didnt have the issue the first batch did, and the S4 has been running flawlessly since i purchased it, just a bit depressing to see one of my best machines go down

Any help would be really appreciated.

My 2-cents is to get an IBM 2kw PSU (208-240v only) and breakout board to replace it. http://www.gekkoscience.com/products/IBM2K_board.html is a good source for the breakouts and PSU's or check eBay for the PSU's. Together they should run around $75-80 total+ shipping.
I got 4 of the beasts for when my S4's croak...

That's exactly what I'm doing with my 5 S4s, it's definitely the way to go.

So I thought id give you all a quick update, Used a link that was in a previous message and I was going to open a ticket, and noticed the live chat support.

Ended up speaking with yoshi and went through what was wrong, I spent 10 minutes on chat and in that time he had already arranged a replacement power supply for me 

He advised me it would be shipped from america overnight, I was over the moon he also said the tracking information would follow.

I honestly expected the replacement to take at least a week or so, but to my excitement i checked my email this afternoon in work and low and behold the power supply was in the Manchester UPS depot which was unbelievable.

It ended up being less than 24 hours shipping 

I still have to pick up the power supply from UPS tomorrow, but I will update everyone with my progress.

Just wanted to say a big thank you to yoshi and bitmain very happy with the service.

[cdjbolton]

Also thanks everyone one for your help just glad its sorted now. (Well until i test tomorrow)

I may end up buying the 2000watt ibm psu anyway, thanks for the link for the breakout boards, this was the thing i was struggling with as my soldering isn't the best  

[NotFuzzyWarm]

Also thanks everyone one for your help just glad its sorted now. (Well until i test tomorrow)

I may end up buying the 2000watt ibm psu anyway, thanks for the link for the breakout boards, this was the thing i was struggling with as my soldering isn't the best  

Glad that went well
Ja the 2kw PSU's are great, lots of reserve margin with a S4 and enough oomph to push overclocking pretty high if desired. I'd think hitting near 3THs would not be unreasonable.

and of course 2kw is perfect for 3 of the S5's @ stock speed, maybe even goosed a bit...

Oh, re: soldering. When it comes to server power supplies and their associated wiring the most common problem is using a soldering iron that is too low wattage (most are 25-35w). Due to the heavy wiring and large PSU contacts being very good at sucking the heat away you need at least a 65w iron with large flat tip for fast & decent joints

[RealMalatesta]

My second PSU died - and Bitmain sent the replacement faster than I could imagine. So while I'm normally a grumpy old man, this really was more than I ever expected. Thanks.

[SockPuppetAccount]

Does someone have a spreadsheet they can share showing voltage vs power usage vs hash rate for S4s?

Thanks.

M

What does the "good" column mean in the S4 chart?

1740 GH/s at 950 watts?  Is that accurate?

[wajira]

I replaced the s4 stock fans with Scythe GlideStream SY1225HB12SH-P ... Today bit sunny and warm here as I think room temp around 25-30

Model Number:   SY1225HB12SH-P
Fan Speed:   300 (±300) ~ 1,900rpm ±10%
Noise:   5.0 ~ 36.3 dBA
Airflow:   16.4 ~ 108.83 CFM
Rated Voltage:   DC12V
Rated Current:   0.45 A
Static Pressure:   3.04mmH20 (max)
Dimensions:   120x120x25mm
Connectors:   4-pin (4-pin Adapter Included)
Bearing Type:   Sleeve Bearing
MTBF:   30,000hours

https://i.imgur.com/ouiy2Nf.jpg
https://i.imgur.com/pEX3fG8.jpg

[rpandassociates]

I replaced the s4 stock fans with Scythe GlideStream SY1225HB12SH-P ... Today bit sunny and warm here as I think room temp around 25-30

Those temps on your S4 are way to high I live in Florida its 78 degrees farenheit in my house I run my S4 at 200mhz 0725V Stock settings achieve 2.1 THs at a average of 52 degrees celsius on the miner stock fans running about 3600-32700 rpm

I would say those fans are not adequate especially considering you are underclocking
 

[urdubit]

I am new to s4. My psu died due to fluctuation. I was able to get it repaired. Now it ran fine for 2 days. But now the fans dont turn on even on the psu. And there is a red blinking light on psu. I read somewhere that you can re flash the firmware onto the card. Can anyone tell me where I can download the full firmware the .img file that I can use wind32disk writer to flash onto the memory card?

[dimke_yu]

Here you can find how to: https://bitmain.zendesk.com/hc/en-us/articles/204339655-How-to-create-a-bootable-MicroSD-card-with-factory-setting- and here https://bitmain.zendesk.com/hc/en-us under download section choose your device and image.

[Prelude]

I am new to s4. My psu died due to fluctuation. I was able to get it repaired. Now it ran fine for 2 days. But now the fans dont turn on even on the psu. And there is a red blinking light on psu. I read somewhere that you can re flash the firmware onto the card. Can anyone tell me where I can download the full firmware the .img file that I can use wind32disk writer to flash onto the memory card?

Reflashing won't help you if you've got a dead PSU.

[urdubit]

well just got the psu tested by the guy who fixed it he seems to say its working fine. I believe its the board or the image itself as if the psu was dead its fan and lights in the back wont blink. I think the board on it is shorted or maybe the connecting wires have gone bad. Is there a way to check if the adriouno board is working or not?

[Prelude]

Plug a different psu to just the beaglebone, and turn it on. It should boot up normally but obviously not hash if the boards aren't plugged.

[Prelude]

Bitmain, when can we expect a new firmware update to re-enable voltage control? The last update killed voltage control. I'd use the previous Oct 16th if I needed it right away, but the latest firmware is much more stable. With summer coming I'll be wanting to underclock and undervolt, along with many others I'm sure.
 
Please make sure that all 4 hash boards respond to voltage settings, previous firmware only controlled 3 of them while the forth was stuck at 0750.

[Finksy]

For anyone else looking at PSU replacement alternatives, 1x of the IBM 2880W PSU's w/ breakout boards can power 2x S4's.  Most people w/ S4's are already equipped for 240V, and aren't concerned about noise (which are the only downfalls of these PSU's).  Check the thread in my sig if you're interested in North America, or J4bberwock's thread for EU/bulk purchases.
Bonus: They are 80+ Platinum rated, and already have fans fitted unlike the DPS-2000BB.

[Ruck918]

Will a evga 1600w 80 plus platinum work as a replacement for the S4. My S4 hasn't died yet but I have the power supply already from a past pc build as backup. I dont mind it sitting outside the case.

[suchmoon]

Will a evga 1600w 80 plus platinum work as a replacement for the S4. My S4 hasn't died yet but I have the power supply already from a past pc build as backup. I dont mind it sitting outside the case.

It won't fit inside - which you seem to ok with - and depending on which batch of S4 you have you might need custom cabling. Open it up and you'll see.

[madmartyk]

Does anyone know what batch is coming from ZoomHash?  At $499 (got a 10% off coupon) I couldn't resist getting one!

[vabchgent]

Anyone down clock there S4 and notice one x. I don't have any hard ware errors but 1 x . Thanks