Antminer S9SE fan speed control ? (noise reduction?)

[andromeda.kiwi]

Hey guys, new to the game here. got my new bitmain antminer s9SE recently and that thing is LOUD, i mean louder then the whole datacenter where it's at! There's apparently no option in the web access to control the fans and there is also no SSH enabled. Is there a way around this?

It seems like this is a very recent model and there ain't much about it online, hoping this thread will be useful and helpful for those in the same situation as me.

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[NotFuzzyWarm]

Not really.
The S9E is not 'recent', it has been out for 2 years and for the most part acts the same as all s9's. Loud and hot.

For at least the past 4 years all BTC miners have been the same - LOUD. The reason is simple - they suck a lot of power and need the high speed fans to give enough pressure to force air through them for cooling.

The only way you can throttle them down is through reducing the power they draw by running the miner at lower THs via undervolting/underclocking. Simply slowing down the fans or trying to replace them with quieter ones only results in the miners overheating.

[andromeda.kiwi]

I can't even under clock it, in my understanding this would need custom firmware, and that unfortunately doesn't exist yet (apparently).

[philipma1957]

Yeah you needed to get a used s9i they can be under clocked and or use custom firmware.

[thierry4wd]

Not really.
The S9E is not 'recent', it has been out for 2 years and for the most part acts the same as all s9's. Loud and hot.

For at least the past 4 years all BTC miners have been the same - LOUD. The reason is simple - they suck a lot of power and need the high speed fans to give enough pressure to force air through them for cooling.

The only way you can throttle them down is through reducing the power they draw by running the miner at lower THs via undervolting/underclocking. Simply slowing down the fans or trying to replace them with quieter ones only results in the miners overheating.

Sorry, false, S9 4 years ago ok but no S9K / S9SE , is probably running by 10nm chips ...

So, control fan is possible and easy ! you just need SSH acces (please shearch how to) , goind to config folder, open cgminer.conf , and, add two line :

"api-listen" : true,
"api-network" : true,
"api-groups" : "A:stats:pools:devs:summary:version",
"api-allow" : "A:0/0,W:*",
"bitmain-fan-ctrl" : true,
"bitmain-fan-pwm" : "45",  (so, change 45 by 0-100 you want)

[andromeda.kiwi]

I ran into those lines of code before but it's all for the S9, not S9SE i even managed to find a thread where you say you were able to SSH S9SE, can you help?

post #17

https://bitcointalk.org/index.php?topic=5183267.0

PS: also considering trying this although it doesn't claim to support S9SE:

https://bitcointalk.org/index.php?topic=5203992.0

EDIT:

Just found this, seems like a work in progress ? https://gitlab.com/fuckyoubitmain/bitmain_custom_firmware_s17_s9se_s9k

[BitMaxz]

You can use the firmware that posted from that thread but the problem is it only supports May 2019 firmware or older.

However, if you can request a program recovery from Bitmain that you can use for SD card flashing maybe you can downgrade your s9SE miner then use the firmware that provided from that thread.

According to this "S17/S17Pro/S9 SE/S9k/Z11 control board program recovery (SD card flashing with customized PW)"
You can contact Bitmain to request for program recovery image which I think will help to downgrade your s9se miner.

[andromeda.kiwi]

Well i've opened a ticket on bitmain requesting May 2019 firmware. They may be a little bit confused since antminer s9se was released in July 2019  

[mikeywith]

There is a way to control the fans on the S9e, apparently, Bitmain made it a little bit harder to do than it was on the older S9 versions, I however and by chance managed to find a way to do so.

Remember that Antminer S9e has a max PCB temperature of 85 as labeled by Bitmain,and it will stop hashing at 80, so reducing the fans speed might actually damage the miner if the room where it's located is not cool enough, to overcome the heat issue, you can set the miner to run at Low Power Mode (LPM), it's also a hidden function that can be revealed by following the steps in same fan control guide.

[andromeda.kiwi]

OMG THANK YOU !!! that really did it

i think we can LOCK this thread and move the discussion to https://bitcointalk.org/index.php?topic=5202112.0