Braiins OS & Braiins OS+ custom ASIC firmware: optimize performance & efficiency

[gt_addict]

Thanks for the reply Artemis. So if I was to get a 14.5th version of S9 it may produce a better hashrate at a given power compared to a a less efficient “standard” S9?

[1714960133]

1714960133

[1714960133]

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[AniceInovation]

Trying your software. When my router disconnects, 5 minutes after my s9 starts speeding up the fan to 100%, up and down constantly.
When the router connects back all gets ok.

I have settled manually the fan to 40% and this is very inconvenient, can i avoid this behavior?

[philipma1957]

A lot depends on what speeds you are doing the unit at.

Here is a 1 board build with a lessor fan.

this fan is good.

https://www.ebay.com/itm/Delta-AFB1212SHE-PWM-120mm-x-38mm-4pin-PWM-FAN-Extreme-Hi-speed-3700-RPM-151CFM/143654747353?

since you use 1 fan it saves power

the single fan is low speed about 1740

set to 400 mhz and  8.1 volts

I have had the pulsing issue you mention set on auto.

So I always do manual speed as these are my ck.pool lottery tickets.

[AniceInovation]

Nothing happens while i have internet. All perfectly good and working with 40% Fan, 550 mhz and 8.5 volts. Losing internet makes this behavior.

Let me fill the details.

If you have S9---->Router cable and you disconnect the cable, S9 behaves correctly, keeps at 40% (detects no cable detected)
If you have S9---->SWITCH------->Router and you disconnect the SWITCH----->Router cable, after 5 minutes the unit goes crazy.

I believe this is a bug, that's why i'm reporting it.

[mikeywith]

Nothing happens while i have internet. All perfectly good and working with 40% Fan, 550 mhz and 8.5 volts. Losing internet makes this behavior.

Let me fill the details.

If you have S9---->Router cable and you disconnect the cable, S9 behaves correctly, keeps at 40% (detects no cable detected)
If you have S9---->SWITCH------->Router and you disconnect the SWITCH----->Router cable, after 5 minutes the unit goes crazy.

I believe this is a bug, that's why i'm reporting it.

It indeed sounds like a bug, in the second case the switch will keep the miner's LAN interface alive so the miner expects to be receiving work from the pool, and whatnot, in the first scenario, however, the LAN interface will go to sleep mode, the miner knows that and thus "behaves" normally, the firmware should check for internet connectivity and not LAN status.

On a side but related note, there should be an option on "What do to when your internet goes down", most custom firmware will keep the fans spinning while the hash boards shut down (the miner doesn't waste electricity), the stock firmware will keep on working for nothing (wasting electricity), it's easy to assume that the custom firmware way of dealing with it is better, but it isn't always the case, I have lost a few tens of miners because the internet went down on a cold wet day, and most of the miners that had custom firmware running died because the miner was colder than the room temp and the dewpoint was pretty low around the fan intake, water condensed and the miners rested in peace.

On the other hand, the gears that were on stock firmware were still generating enough heat and keeping the dewpoint at a higher level, and so they survived, to many people this whole relative humidity/dewpoint /temperature topic is irrelevant and they just want to reduce the power bill, to others, it's better to waste a few tens of dollars on miners that are burning electricity for no revenue rather than throwing away all of thier gears.

[jbillk]

Need some help.

Flashed my S17 NAND with Braiins. Miner fans just throttle, not hashing. Tried flashing back with the software, displays "The uploaded image file does not contain a supported format. Make sure that you choose the generic image format for your platform."

Tried flashing back with SD, and just boots from NAND.

My miner is doing nothing now fans just throttling. Was working fine with stock bBtmain firmware.

Any ideas how to restore?

[Artemis3]

It indeed sounds like a bug, in the second case the switch will keep the miner's LAN interface alive so the miner expects to be receiving work from the pool, and whatnot, in the first scenario, however, the LAN interface will go to sleep mode, the miner knows that and thus "behaves" normally, the firmware should check for internet connectivity and not LAN status.

On a side but related note, there should be an option on "What do to when your internet goes down", most custom firmware will keep the fans spinning while the hash boards shut down (the miner doesn't waste electricity), the stock firmware will keep on working for nothing (wasting electricity), it's easy to assume that the custom firmware way of dealing with it is better, but it isn't always the case, I have lost a few tens of miners because the internet went down on a cold wet day, and most of the miners that had custom firmware running died because the miner was colder than the room temp and the dewpoint was pretty low around the fan intake, water condensed and the miners rested in peace.

On the other hand, the gears that were on stock firmware were still generating enough heat and keeping the dewpoint at a higher level, and so they survived, to many people this whole relative humidity/dewpoint /temperature topic is irrelevant and they just want to reduce the power bill, to others, it's better to waste a few tens of dollars on miners that are burning electricity for no revenue rather than throwing away all of thier gears.

Yes we know of this and its been reported and i even suggested a solution.

In the meantime, you can just set the minimum number of fans to 0.

This happens because some fans don't like getting set to like 1% speed, under certain threshold they bump to 100%. My suggestion is to add an absolute minimum value (ie. 10%). So technically its a hardware issue, but since there are many fans of different brands, even shipped like that from Bitmain, this happens to various people.

The firmware just wants to powerdown the fans when the hashboards aren't working, to reduce the noise. Ironically, to these people it does the exact opposite. Someone even joked this is the alarm to tell you your internet is down

PS: Braiins OS+ does perform a pre-heating to avoid the situation mentioned by mikeywith. You can look at it in the system log.

Any ideas how to restore?

Either use the sd card recovery image from Bitmain, or the bos-toolbox, ie. bos-toolbox uninstall ipaddress. Then log into the miner and "update" that firmware to the latest from Bitmain.

Once you have Braiins OS installed just inserting the sd card won't boot from it unless you edit the text file uEnv.txt and add the line sd_boot=yes. I don't think reflashing Braiins OS from sd would make any difference, what you could try is re-enabling the boards (in Miner > Configuration) and lower the powerlimit (autotuning should always be enabled).

[jbillk]

Either use the sd card recovery image from Bitmain, or the bos-toolbox, ie. bos-toolbox uninstall ipaddress. Then log into the miner and "update" that firmware to the latest from Bitmain.

Once you have Braiins OS installed just inserting the sd card won't boot from it unless you edit the text file uEnv.txt and add the line sd_boot=yes. I don't think reflashing Braiins OS from sd would make any difference, what you could try is re-enabling the boards (in Miner > Configuration) and lower the powerlimit (autotuning should always be enabled).

Thx. Cant seem to find windows version of bos-toolbox. Only Linux on website. Do you have a link?

[BitMaxz]

I think you can't find the windows version because they temporarily remove it due to some issue. Look at this reply from Slushpool:



It was from the brains OS youtube guide related to bos-toolbox from here https://www.youtube.com/watch?v=PjCZIVkTuLI. So try to contact Slushpool about the exe file of this tool or you might need to switch to Linux.

[Artemis3]

Correct, the binaries were taken down as various windows tools decided to falsely flag them. You can get them from telegram but its best to stick to the Linux binaries (windows 10 can easily install Ubuntu wsl which for the common user its just a better cmd).

Open "Ubuntu" and use the toolbox as follows:

wget https://feeds.braiins-os.com/toolbox/latest/bos-toolbox
chmod +x bos-toolbox
./bos-toolbox install -p root ipa.ddr.ess

You may need to replace the password root with admin. And instead of the ip address, you can use a text file containing a list of ip addresses, one per line.


Or use the micro sd card test/install method, which is currently required for S17s and T17s anyway.


Let me tell you something interesting. Unlike some other firmware, Braiins OS does NOT write to the eeprom of the hashboards. Should a bug, or a power failure occur during this, you may end with an apparently unusable miner, as certain firmware mods are known to corrupt the eeprom when writing their "tuning values".

The autotune solution from Braiins is completely done in software by bosminer+. Also you don't want bad values in the eeproms when running those firmware, it may tell it to use nasty values prematurely ending your hashboard life. Thankfully Braiins OS (unlike others) does not use these values at all as it has its own independent implementation.

Braiins OS can still work with hashboards suffering this corruption, if at least one of the three is good, it will read the eeprom only to identify the correct miner model. There is also an option to force the model should all three be corrupted.

Braiins OS does not "repair" machines, it simply uses them in a much cleaner way, which is what you should expect when doing your own thing from scratch, rather than manufacturer modified cgminer modified again by others (and nobody publishing back their changes, violating the license of course).

[proteus7]

What kind of performance can I reasonably expect on S9 and S9i, assuming I set powerlimit to 1500. For some reason autotuning is giving me 16+th on one..and only 14th on the other, even though both have all chips active? I’ve heard of people getting as high as 18th+?

[du5tin]

I have seen as much at 17TH output on higher power settings (1400W) with my S9 units. I can often throttle back the power to 1100W or 1000W and still get the sticker 14TH output too, which is sweet.

[mikeywith]

What kind of performance can I reasonably expect on S9 and S9i, assuming I set powerlimit to 1500. For some reason autotuning is giving me 16+th on one..and only 14th on the other, even though both have all chips active? I’ve heard of people getting as high as 18th+?

Some chips are just bad and can't be tuned above their average, of course, assuming you are doing everything right and your PSU is in great shape, so don't expect that all gears will perform the same, that won't happen. as far as the 18th claim goes, it's possible but most likely not without liquid cooling, I am pretty sure most gears will collapse when you start pushing past 16th, overclocking your gears to 16th is already a bit risky, attempting to go higher is a toast recipe.

[100knot2dae]

Does Braiins support voltage / frequency control via API? I am looking for a fully automated setup that is scaling up and down according to solar power availability. To consume as little grid power as possible while running at max when sun is shining 

Wondering if Braiins might be able do this job, since stock firmware's miner API does not seem to allow that on a S9/T9, even on older firmwares.

[Marvas]

Hi, I have been using Braiins OS for some of my miners and I am very satisfied!

Anyways, I have a question regarding BOS installation. Long story short, I tried installing them for my friend and he gave me the wrong password which is required to install BOS. Now I get this message in Command prompt:
ERROR:Auth credentials for host on ***.***.*.*** are wrong

What might be the solution now that I know the right password of these miners?

Thanks

[Artemis3]

Does Braiins support voltage / frequency control via API? I am looking for a fully automated setup that is scaling up and down according to solar power availability. To consume as little grid power as possible while running at max when sun is shining  

Wondering if Braiins might be able do this job, since stock firmware's miner API does not seem to allow that on a S9/T9, even on older firmwares.

The focus of Braiins OS+ is automated efficiency (its not about blind speed). Rather than changing speeds and voltages, what you change is the power limit and let the algorithm do the rest. In fact, you want to change the power usage and not mess with anything else and that's exactly what power limit is for. You are specifying watts the miner is allowed to use and let it sort out the rest as efficiently as possible.

The API documentation is here: https://docs.braiins.com/os/plus-en/Development/1_api.html

You could just swap the power limit and restart bosminer via ssh, schedule (crontab), or some custom script. Ask me on the telegram group if you need help with getting a script to change the power limit at specified times of the day.

Anyways, I have a question regarding BOS installation. Long story short, I tried installing them for my friend and he gave me the wrong password which is required to install BOS. Now I get this message in Command prompt:
ERROR:Auth credentials for host on ***.***.*.*** are wrong

What might be the solution now that I know the right password of these miners?

With the toolbox you use a command like this:

bos-toolbox install -p password 10.10.10.10

Typical password for stock firmware is either root or admin. It may be something else if this was changed. Else you can use the sd card if the password is unknown.

[Marvas]

I tried bos-toolbox install -p password 10.10.10.10 but I get this error:

Code:

[2021-02-28 20:40:13] INFO:Attempting unlock host on 10.10.10.10 with AntPwn v3...
[2021-02-28 20:40:13] INFO:Sending upgrade payload...
[2021-02-28 20:40:14] INFO:Triggering payload...
[2021-02-28 20:40:14] ERROR:Failed to trigger payload on remote!

Do you maybe know what causes this error?

[dotJson]

Looking for the command to stop and start BOS from CLI. I need to add it to a crontab entry. Is there a command to exec or service to toggle? I see the stop and start commands from the GUI top banner under quick actions so I figure it must call a command in Linux.

Maybe just call /etc/init.d/bosminer stop?

https://www.sdyoung.com/dl/images/stop-start.jpg

Thanks!

[Ndelox]

Does anyone have the braiinos link for dragonminer T1? I have 5 units and I would like to install it since I have it installed in antminer s9 and it is very efficient

[fvineyard]

I think I have this figured out. My hash boards have the inductors, and from what I can tell that means they should work with the Xilinx controller board. At least it is worth a shot to purchase one and try. Just wanted to get a better feeling for this before I spend the $$$ on ebay.

Thanks!


A question for any who may have done this before. I have a batch 13 S9 12.93 TH/s that came with a C5 control board. Can I simply upgrade to an Xilinx based control board? Is there anything I need to check first to make sure it is compatible with my hash boards?

I found other posts through searching, but some of that info was in conflict, so I wanted to confirm if possible, or at least get more information so I can confirm

My goal is to run my S9 at a lower speed with Braiins OS and thus more efficiently and at a lower noise level that is acceptable to my spouse (since that was the reason I shut it down last summer - the noise my spouse made over how loud the S9 was ).

Thanks in advance!