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1  Bitcoin / Mining support / Re: Antminer S9 - Stops hashing after booting up - Pretty sure it's a fan issue. on: July 25, 2018, 07:07:42 PM
Quote from: Ameador1 on July 25, 2018, 06:46:48 PM
Did you go through Bitmain? Keep in mind that their warranty stickers are on the screws holding the fans in place - swapping it without their go-ahead could cause you warranty issues later. Just a consideration. Hope that's the solution for you.

Have you tried setting the fan manually - in the Miner Configuration Tab? You may get a false speed reading, but maybe you can force it to run at 80% to 100% (depending on your ambient temps) to get the temperature in line to run it until you can swap the fan.

BitMaxz posted a link to how to do it earlier.

I bought these back in January, so I believe they are no longer under warranty. (I think the warranty period is 180 days)
2  Bitcoin / Mining support / Re: Antminer S9 - Stops hashing after booting up - Pretty sure it's a fan issue. on: July 25, 2018, 06:35:56 PM
Quote from: Ameador1 on July 25, 2018, 06:19:58 PM
In the OP, the readings on the good fan are read properly on both fan connectors when the fans were swapped. I would think this is a bad fan indication (at least the counter/ticker part of it), not fan detector on the controller. Right?

Yes, that's what I'm thinking as well. I just ordered a new fan. I will post an update once it been replaced, in case anyone else runs into a similar issue.
3  Bitcoin / Mining support / Re: HELP S9 does not show HW version or BMminer version .. does not show hash on: July 25, 2018, 05:53:04 PM
Does it hash for a few minutes when you first reboot and then stop?
4  Bitcoin / Mining support / Re: Antminer S9 - Stops hashing after booting up - Pretty sure it's a fan issue. on: July 25, 2018, 05:46:15 PM
Ameador1,

Thanks for the quick reply.

Yes, the fans are definitely connected correctly. The miner has been running fine for months, it randomly stopped working late last night. I only swapped the connectors today to troubleshoot.
5  Bitcoin / Mining support / Antminer S9 - Stops hashing after booting up - Pretty sure it's a fan issue. on: July 25, 2018, 05:32:00 PM
My S9 stops hashing a few minutes after booting up. I think I've narrowed it down to a fan issue. When working normally, both fan speeds are around 4000-6000 rpm.

This is what I'm currently experiencing:

- High temps on all 3 chips. 128/115/128

- Both fans are receiving power and spinning, so they're not completely dead.

- Before the miner stops hashing, the fan speeds are showing as follows:

Code:
Fan# 	Fan1 	Fan2 	Fan3 	Fan4 	Fan5 	Fan6 	Fan7 	Fan8
Speed (r/min) 	0 	0 	4,440 	0 	840 	840 	0 	0

- I swapped the two fan connectors on the board, and the numbers are reversed, which leads me to believe one fan is malfunctioning.

Code:
Fan# 	Fan1 	Fan2 	Fan3 	Fan4 	Fan5 	Fan6 	Fan7 	Fan8
Speed (r/min) 	0 	0 	840 	840 	0 	4,440 	0

- Why are there 3 fan speeds showing? Could that mean it's a problem with the control board?

Please see attached screenshot.

https://imgur.com/a/gRyRwNH

Any help would be appreciated.

Thanks!
6  Alternate cryptocurrencies / Announcements (Altcoins) / Re: 🔴HADRON🔴⠀WEB⠀BROWSER⠀AI⠀MINING🔴 Mining⠀started,⠀apply⠀now,⠀AIRDRP⠀bount🔴 on: January 19, 2018, 08:50:21 PM
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