I'll offer $100 for the mini

The PSU is probably worth more than the R4 at this point.

You didn't mention where you are located either, which is important if buyers must pay shipping.

I tried that; some of the miners were used and had an older Sept '17 firmware before putting the asicboost files on. I reflashed the whole filesystem to Nov 2017 autofreq (which fixed the issue) and then flashed the asicboost again (which caused the issue to reoccur).

It seems like it will freeze up at a consistent time on each individual miner, but the time that it freezes up varies between miners.

Also there are a lot of miners that were new and have only ever had the Nov 2017 autofreq firmware and they also present the same symptoms after being boosted.

Are you sure about the date thing? Sounds like the firmwares might have been flashed incompletely or something. All of my asicboosted miners all have Nov 2018 file dates. None of my non-asicboost have the LPM checkbox either.


I wish I could say the same about these machines here. It turns out that was a red herring anyway as these machines here were apparently flashed with asicboost in order of descending hashrate (roughly).


The asicboost "firmware" is straight from Bitmain. Besides, nowadays using non-asicboost firmware with the S9 is pointless and often unprofitable.

This subforum is only for bitcoin mining support, so this topic should be moved to the altcoins section.

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Looks like I was mistaken again. So I got some high-level stats and here is what I found:

Farm Summary

6.1% of miners had a Last Share time of greater than 1 day, evenly distributed from 1-32 days

99.4% of affected miners were ASICBoosted S9, other 0.6% were ASICBoosted S9i. So the issue is definitely related to ASICBoost firmware.

Weird thing

42.3% of affected miners had LST greater than 7 days. Out of these miners, 99.7% had a (frozen stat) hashrate greater than 11 TH/s.

For the affected miners with LST less than 7 days, only 11.1% of these miners had a (frozen stat) hashrate greater than 11 TH/s. 88.5% of them had one bad hashboard and thus reported between 8-11 TH/s.

If you have shell you can find (and edit) the mac address in the file /config/mac

Also, when you are setting static IP, you need to make sure to get the netmask and gateway correct, else you won't be able to access it. For DNS you can use 8.8.8.8 or any server you like.

Hello all,

I've come across a widespread issue in a farm today that I could use your help with.

It started when I received notice that a large number of miners (all of them Antminer S9 base model - mostly 13.5th) appeared to be hashing fine when looking at web miner status or miner API, but on the pool API it showed no hashrate for these miners (no shares being submitted). When I look at these miners through either the status page or API, they appear to be hashing, but all of the stats are frozen. For example, the "elapsed" time does not increase, realtime hashrate does not change, nothing. Kernel log does not change and no error messages are present.

The eerie thing is that LSTime (last share time) still increases as normal. And it also looks like fan_num is always 0, and all fan speeds are zero.

When I reboot the miners, everything comes back up normally. Stats stay updated, fan speeds show up, shares get submitted (confirmed by pool). So what I am planning to do is make a script that checks all of the APIs so that e.g. if hashrate > 1th but last share time > 10min then reboot the miner.

The thing is that I have no clue why this is happening, and what might cause it to reoccur. Any thoughts?

Hello everyone,

So I found a Bitcoin mining pool called sigmapool.com recently. I am not affiliated with this pool at all, and I was surprised that no one had posted about this pool in the Pools section yet.

I made a topic for this pool in the pools section, but when I came back today the topic had mysteriously vanished. No message to me about it being deleted, nothing.

The only other post that used to exist about this pool was in the Russian section here - https://bitcointalk.org/index.php?topic=5056302.0 - but it seems to be gone too.

Is there something I don't know about this pool? Why would all of the posts about it be deleted?

Please let me know what is going on.

No debería ser un problema de controlador. Sin embargo, si no puede solucionar su problema con el PicKit, tengo un panel de control T9 + adicional. Lo estoy vendiendo por 0.015 btc si lo quieres.

I should mention that I'm not affiliated with this pool in any way. Please share your thoughts about this pool and especially about their custom SigmaBoost firmware.

I have been messing around with the SigmaBoost firmware on an Antminer S9 after a friend showed it to me. It allows voltage control at the board level and firmware control at the chip level.

SigmaPool is a BTC / LTC / DASH multipool that is currently offering both PPS and PPLNS payout schemes with 0% fee.

The pool's hashrate is around 180 PH/s, and the PPLNS payouts are based on a 2Nd ramp time.

Registration

After registering a username on the pool (e-mail verification required, 2FA is optional but recommended), you can configure your ASICs like so:

Pool: stratum+tcp://eu1.btc.sigmapool.com:3333
User: username.workername
Pass: x

Username is not case sensitive. Worker name is optional and can't contain any symbols besides the underscore.

Rewards

Detailed miner stats and rewards projections are displayed on your personal dashboard. You can also see past rewards and export as CSV from the Earnings tab.

You can optionally receive alerts by e-mail whenever a miner goes offline.

Minimum threshold for withdrawal is 0.001 BTC. No withdrawal fee.

Bienvenido a BitcoinTalk!

Por lo general, para las operaciones mineras a gran escala, le importa menos el porcentaje de hash de cada minero individual y más la eficiencia energética (J / TH) que le indica la cantidad de energía que necesita para hacer un terahash.

Dado que la electricidad es el principal costo de la minería, sus objetivos principales son obtener una tarifa de electricidad barata y obtener los mineros más eficientes energéticamente posibles.

Mi amigo ya tiene algunos S15 y son sin duda el hardware más eficiente en el mercado en este momento. Menos de 50 J / TH.

Con el tiempo, la tasa de interés de la red de Bitcoin tiende a aumentar, por lo que debe tener un gran margen de ganancia si desea asegurarse de que seguirá siendo rentable.

Tengo una placa de control T9 + de repuesto que podría venderle, pero no creo que ayude.

Hay un PIC en cada hashboard y puede corregirlos con un pickit 3 como se describe aquí: https://bitcointalk.org/index.php?topic=5032987.0

Bitmain sells them for 95$ new..

I will offer you a APW3++ anywhere in USA for only $90

Where in the USA are you located?

That is good advice, kano. I might be testing this software on some miners, mining solo so it wouldn't affect any other miners on a pool if it were to withhold block solves.

I just wanted to see if anyone had used this specific software before, since there seems to be so little information about it online.

Agreed, with only one S9 you will not be getting daily payouts, regardless of what pool you mine with. So it makes sense to mine with whichever pool has the lowest fee. CKpool has no fee, kano has a 0.9% fee and slushpool has a 2% fee.

Has anyone had any experience with the "Optiminer" optimization software for the Antminer S9 / T9 series? This is different from the Optiminer Zcash/Equihash GPU miner.

I wasn't able to find much information about the software online, except that it is produced by LSJ, LLC. I think it's supposed to make the miners more power efficient.

Any thoughts?

Was your antminer already restarting every 5 minutes before you made this change? It could be a completely unrelated issue.