The S9 will not mine if it does not detect both fans. If you have tested the fans and are sure that the issue is not with any one fan, you should try plugging into one fan socket at a time to see if the problem is linked to one of the fan sockets on the controller board. Perhaps a connector is loose and could be fixed? If the miner is still under warranty, consider sending it to Bitmain for repair. Otherwise, it sounds like you might need to replace the controller board. Bitmain does sell them from the official shop, albeit for $60 each. There are instructions for replacement and firmware upgrade on the page as well: https://shop.bitmain.com/product/detail?pid=000201611160734291469K134u1i0621I have never seen any error messages directly mentioning hardware mismatch and would be curious to read that error message if you have a copy. Best of luck troubleshooting this issue. |
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https://we.tl/wBuVn7X8nWfile: Antminer-S9-all-201704270135-autofreq-user-Update2UBI-NF.tar.gz sha: 0515029015ad8dcedb185367fc5f829851dc65ed This file replaced the 0428 dated firmware on bitmain's site before all of the april firmware was removed. I have used this one to fix 30+ flash errors
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The interesting thing is that there is zero hashing with the 1117 firmware and with April firmware only 2 boards work. What other previous versions do you recommend I try out?
Scared to fiddle in case they totally stop working.
I wouldn't try any other firmware besides the one from April. There's probably something wrong with the third board. |
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Common problem on the 1117 firmware. Roll it back to an older official firmware and your problem should go away.
^This. But, it seems like you have already have tried flashing the older firmware. name: Antminer-S9-all-201704270135-autofreq-user-Update2UBI-NF.tar.gz sha-1: 0515029015ad8dcedb185367fc5f829851dc65ed With latest firmware Fri Nov 17 17:57:49 CST 2017 I do Not see a Hardware Version and BMminer version and zero hashing on any of the boards
When I load up firmware version from April 2017 I see 2 boards and they hash but not on antpool only on nicehash.
It sounds like at least the other 2 boards should work now. Try unplugging the faulty board and see if the miner will hash natively using the other two. |
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Make sure that the fan you are trying to use has the blue pwm fan cable on the end, some versions of fan QFR1212GHE have this cable in one of the middle sockets.
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Antminer S9's fans spin when power is applied, but no lights turn on (no hashboards, no ethernet, no status leds, no controller leds).
Power supply and ethernet connection are known to be good. Reset button and IP Report button have no effect.
Is there any way to solve this problem or must the miner be repaired by bitmain?
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Unless your source is fully trustworthy, you should always confirm the SHA-1 checksum to verify the integrity of any files you download.
Since the file was on Bitmain's official site until recently, you should be able to find it elsewhere.
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-->--> Antminer-S9-all-201711171757-autofreq-user-Update2UBI-NF.tar.gz
Do NOT use this firmware. Use an older version from the Bitmain site. The 1117 firmware is well known to be buggy and problem prone. About a week ago, bitmain removed the older autofreq S9 firmware from their site. You can probably still find the file elsewhere. File: Antminer-S9-all-201704270135-autofreq-user-Update2UBI-NF.tar.gz SHA-1: 0515029015ad8dcedb185367fc5f829851dc65ed |
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For larger areas, I think that large bonded pad filters (in bulk) would be the best choice.
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60-70C is a good temperature, even for the PCB. The miners will still work with PCB temps pushing 100C.
Adding external fans was a good idea, and can only help the miners. You can always try setting your miners' fans manually to 100% or some other values to see what kind of impact it has.
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Todos. Los. Multiplicadores. Son. Estafas.
Por ejemplo: 1ooXvGCkMqizUGyzWZRnvCaFuBx9qLDWg (de 222222c6hrrxbydu.onion - una gran estafa)
Es solo una de muchas direcciones. Puedes ver que no hay "pagos 100x", ni 5x.
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I'm also curious about where, as I don't know of any area that is close enough to an ocean or a large salt lake to have significant salt water in the air that also has access to low cost electric.
These miners are in the west, in the Americas. The airflow is higher than it typically might be because fans are either running full pwm or have upgraded / additional fans in the stream to provide even more airflow (because of the heat). using a water reservoir and a small circulating pump.
It would be great to be able to pump water like you suggested in order to address both the heat and the humidity at the same time. Hopefully things will work out before everything gets hot again. |
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The S9 is one rugged dude. It's amazing how it can catch on fire and still hash as if it's just been turned on for the first time.
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Easy peasy and highly recommended when using multi kW PSU's to run multiple miners off of the 1 monster.
Each miner is running off of a different PSU (1800W) at 220V, so I don't know if 30A fuses would help. |
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Well, same setup as all the rest... I guess I should be grateful that only a few have melted. Good tip on the 30A fuses but it would be too much work to retrofit the miners. Perhaps the heatsinks could still be harvested.
Also, cutting the board out from the inside seems more logical. That way it can slide out first before the top part is removed.
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RIP  https://i.stack.imgur.com/JyASP.jpgIs the board useless now, or is there still some salvageable value? Also, since it is melted to the chassis, would it be better to cut it from the top or from inside? |
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It won't take "dozens" of them to reduce humidity 1-2%, unless you are running MILLIONS of CFM airflow (hundreds of thousands of M^3/minute) and have 80%+ humidity air input - though it would get complicated a bit by the fact they would reduce your intake air temp some, they'd still be pulling SOME of the water out of the air so even if the RH didn't drop a lot the moisture content of the air WOULD which should reduce the rust issue.
Airflow is in the millions CFM. I was using m^3/s not m^3/min. Also, the humidity is often above 80%. I get that dehumidifiers would still have an effect even with these conditions but I don't think that effect is worth the expensive price tag. |
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You do NOT have to run your entire inlet airstream THROUGH a dehumidifier for it to be effective - just have it AT the intake area to soak up enough of the humidity to reduce it enough to keep stuff from rusting.
Unfortunately there's no one intake area / airstream. Air just floats in passively through sheets of fine mesh (>500 m^2). Yes they are not as effective as a dehumidifier, but OP did not feel a dehumidifier was the best for their setup.
It's just too expensive. Even industrial dehumidifiers can't process 1 m^3/s, there would need to be dozens of them just to reduce humidity by 1-2%! |
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How long before the controller board rusts dead? It happened to u before?
Dehumidifier does not make sense when airflow is so strong. I think just have to change the fans. The hashboard does not rust right?
Those deciccents are far weaker than dehumidifiers and u have to get rid of the moisture they absorb by heating them later on. The moisture is released in the air when u heat them.
The rust is mostly noticeable on the fan grates, but yes, the miner in the picture has a controller board that seems to have failed from rust. And you brought up a good point. It seems that silica gel already starts releasing moisture below 20C. If the ambient air is already above that temp, it might be useless to try using it as a desiccant. |
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