Topic: Another S9 not working (Read 471 times)

Yes, in addition to target temperature exposed in the ui there are two hidden parameters you can change: Hot, which is when fans go 100%, and dangerous which is the one that makes it stop mining/restart.

Here is a sample in the bOS thread.

Remember, it is your personal choice and responsibility, and you can damage your equipment if you mis-configure these parameters. You should find ways to improve the airflow in your place. It is also possible to disable sensors, or ignore just the chip sensors (there are two types of sensors, on chip (remote), and on-board). With: disable-sensors and disable-remote-sensors.

bOS is the most flexible firmware because it doesn't do any hand holding for you, but you alone assume the risks of your mistakes.

Thanks again.

Ive left them now but will play again tomorrow.

They are still running on slush so all good.

Is there away of changing the max temp on BOS? Checked my other S9 and they tend to run at mid 90s

9.4v is too much, if you have to go over 9v, its better to reduce speed in my opinion.

And yes, assume that board is failing, don't expect it to work at spec speed anymore, if it works fine at 500mhz, so be it.

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When you install BrainsOS, go and lower those voltages. Yes it loves 9.4v, but don't. I know someone that starts at 8.7v always. Hundreds and hundreds of S9s...

If you went back to factory firmware, it probably changed its ip, you'll have to find it again. Depending on how you made your bOS image, there is a small chance you cloned up the mac address. Plug the miner controller directly to a computer and scan its ip, log in and inspect the hw mac address and compare it with the second one, just in case.

There is nothing factory software can do that you can't replicate manually with bOS. If anything, the factory firmware is going to limit you more. Also bOS is over protective by default, since it reboots if over 95°C while factory might leave it running until 115°C or such. bOS is giving you a second chance to fix your overheating, while factory will happily burn it. More sales right?

Also as told elsewhere, the sensors tend to fail. That's when you appreciate bOS the more, with factory you would think the hash board is useless, but still works using bOS...

I got this when I came on this morning.

https://imgur.com/qL1ZJ2N

I have about 30miners running in that room and don't have any issues with others.

Im not worried about damaging this one. but if I have to run it on the Bitmain software with the one of the boards disconnected its not the end of the world.

I have dropped the frequency to 550 and left the voltage at 9.4

I am wanting to install the rest of the s9s and T1's to Braiins but worried I'm going to have issues with them getting hot and turning off.

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https://imgur.com/85rCnWJ

Just another update...

Its not working think I will just go back to the Bitmain software.
Unless you have any other ideas?

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So I took the memory card out of the miner and moved jumper 4 back.

Now I can't find the miner with the IP address.

I also tried the Braiins firmware on a healthy miner. It got to hot and cut out within minutes. I took the sd card out of that miner and moved the jumper back and cant find that one either!

Please help!

Ok let's break this down

The first and second board are running pretty fine, very a few HW and the temps on the first are fine, and they should be fine on the middle board, maybe a bit warmer but that is still fine, I would not touch the first and second boards.

The 3rd board however has way to many errors, so now it's you call, you have one of two options as Artemis3 mentioned but let me explain a bit more

option 1: increase voltage

pros : you don't lose hash rate
cons :the board will run a hotter

option 2:decrease frequency

pros: board runs cooler
cons: you lose some hash power

do whatever you feel more comfortable with, you need to have a few HW per hour for the hash rate to actually count on the pool side.

after having fixed that, keep the miner on for a couple hours and then check the pool, if the hash rate on your miner is the similar to the one on the pool, you are good, if not then you have some internet/networking issue, pool is too far, latency ,etc.

Well as i said if you get too many errors you have to either lower the speed or bump the voltage. And remember the middle board tends to overheat more due to a Bitmain miss design (intake fan too close to the board).

I say your ambient temperatures are fine, they are supposed to work up to 40°C ambient, as long as you keep that air moving, 200cfm per s9 as some have suggested (fresh air separate from exhaust air). Humidity should be above 20% but under 70% (they say up to 90% is ok, but things like the fan grills get rust).

Thanks very much for your help!!

There has been an issue today this is what its showing now

https://imgur.com/CVgEYdS

https://imgur.com/yY0RyIo

What else can I try? Its 28 deg in the room there in and it gets to about 33max in summer

This topic has been debated before , a dozen times, some say anything above 90 is bad, other say since Bitmain has 115 as the max chip temp so anything below that is fine, and the two different groups have some reasonable explanations on why their point is right

Now science and school aside, speaking from my own personal experience,  I think temps don't really affect the lifespan of the hash board !

believe it or not, I had some brand new gears run very very very cool and simply burn, I have a small farm built on the roof of my house, where the sun is frying them everyday and they operate above 90 almost most of the time, and some of those are super old gears and guess what? 0 problems !

I know the school boys will argue with that and explain to you how does heat reduce the lifespan of anything electronic , not saying they are wrong ( I do believe that is true ), but these boards are 99% luck based, doesn't matter how nicely you treat them  

Chain 1 looks good.

Chain 2 and 3, you could try lowering the speed a little if you are not satisfied with chip/ideal rate or up the voltage a notch if you don't mind getting them hotter, tho 83°C and fans already maxed is looking a bit too much in the too hot side, but under 90°C is still safe i guess, don't let them touch that temp.

When you used Bitmain's, you probably saw a board at around 602ish and another at like 590ish, that should give you a hint.

I don't have experience with T1s, apparently it works fine with G19s and G29s, but i have seen people occasionally having issues with the 256mb ram controllers.

Thanks for that just under clocked it with all the boards connected, its been running for a cook of hours and I'm getting this.

https://imgur.com/o6wDmFB

I will see how it does as it gets warmer today.

Im thinking about doing the rest of my s9s and T1s.

I had a look which version to use for T1 and wasn't sure. Does it work well on the t1?

You can (should) downclock the boards. If you used Bitmain firmware, you should remember the speed they had in Mhz, then use a speed close to that and lower voltages until you can see ideal and actual rate match, then go back up.

Ie. If 600 Mhz 8.7v, lower to 8.6, 8.5, then back up to 8.6. Etc. (Ignore what Braiins says for auto voltage).

Always seek the lowest voltage you can get while still getting good results (actual and ideal speed match, few or no hw errors).

You can also force the fans, so make sure you check that as well. You can also tweak the target speed (ie 70°C rather than 75°C). Remember that these parameters are not identical to Bitmain's, find your own sweet spot.

I have tried it with the middle board disconnected and it won't run with the Braiins. Well it does but just gets too hot!

It ran with two boards on Antminer Firmware.

I don't know much about braiins OS but it looks like your miner running fine according to the image above.
The only problem is the temp in the 2nd board according to the image it's not showing any temp it means that the 2nd board temp sensor is defective or damaged this might be the reason why the other hashboard showing abnormal temp or status.

How about the reported hashrate on the pool? Are you getting correct hashrate speed?
If everything is fine with Braiins OS much better to stay with this OS just to bypass the 2nd board temp checking.

I finally managed to install the braiins os.

I am not getting this

https://imgur.com/XE2id7W

https://imgur.com/3tElH3y

The recommended firmware already mention above.

Then step by step guide you can find here https://docs.braiins-os.org/#phase-1-creating-bootable-sd-card-image-antminer-s9-example
or Check this video https://www.youtube.com/watch?v=-W3N0HCObbA for windows or this one https://www.youtube.com/watch?v=6Ft68yIjwUE&vl=en for linux.


Follow this https://docs.braiins-os.org/#option-a-install-from-sd-card

If installing to an SD card download this file
https://feeds.braiins-os.org/braiins-os_am1-s9_sd_2019-06-05-0-0de55997.img

If installing directly to the controller via a web browser use this
https://feeds.braiins-os.org/braiins-os_am1-s9_web_2019-06-05-0-0de55997.tar.gz

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Hi Please can someone help me install the Braiins OS software?

I don't understand which file to use from there website to flash my SD card with?

Thanks!

It looks like the chain [7] is running fine now according to your kernel logs and the PIC fw is showing the same as other hashboard so I think your problem is solved?

Do you have another problem with the miner?

How about the miner's status in WebGUI?

There is no complication if your miner has the sd card reader (some don't).

All you do is:

• put the image in the sd card
• turn off miner
• move jumper jp4
• insert card
• turn on miner

It cannot be more simpler than that. Well it actually can, if you decide to flash it to your controller instead...

Never ever use Bitmain firmware from 2019, it won't let you downgrade, and closes ssh.

https://pastebin.com/ksV3rHKf

Thanks!