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

[sarcheer]

I've installed this via the web portal on one of my R4's and am having problems getting it to hash. It will submit 3-4 shares before stopping. It appears to be linked to fan speed as when the fans drop from start up, around 3k rpm, the miner stops hashing. For some reason the fans drop as low as 800 rpm (never seen them that low) and my guess is thats causing a failure mode to kick in like it does on the s9's when people disconnect the fans to try and oil cool. As there is no way to control fan speeds through BOS at the moment, I can't test this theory. I'm in contact with Braiins support and will keep the thread update with how this issue gets resolved.

[Dangles89]

I'm currently running the latest firmware on my S9j. I ran the previous firmware as well and am having the same fan issue with both versions. The fans will spin up randomly like the unit is restarting but it's been running for days. It gets really annoying, anyone else having these fan issues /have a fix?
Thanks

[Artemis3]

I've installed this via the web portal on one of my R4's and am having problems getting it to hash. It will submit 3-4 shares before stopping. It appears to be linked to fan speed as when the fans drop from start up, around 3k rpm, the miner stops hashing. For some reason the fans drop as low as 800 rpm (never seen them that low) and my guess is thats causing a failure mode to kick in like it does on the s9's when people disconnect the fans to try and oil cool. As there is no way to control fan speeds through BOS at the moment, I can't test this theory. I'm in contact with Braiins support and will keep the thread update with how this issue gets resolved.

The R4 is not supported, why did you do this? If you think the problem is the fan, just disconnect the 4th wire  (I think its blue): gently take it out of the plastic plug by using a small flat screwdriver to let it lose; then the fan will be at 100%.

[sarcheer]

The R4 is not supported, why did you do this? If you think the problem is the fan, just disconnect the 4th wire  (I think its blue): gently take it out of the plastic plug by using a small flat screwdriver to let it lose; then the fan will be at 100%.

According to the Braiins page, the R4 is supported. Their support has confirmed this and added that they have tested it on multiple R4’s. I will have to try removing the 4th wire, thank you for the tip! Can it be reinserted without damage?

[Apprentice]

having issues with the frequency.
When setting the frequency in cgminer, it shows differently in the status page.

670 showing 675
660 showing 662
....

prefer the previous firmware, was working super fine.

[Sierra8561]

After upgrade to Cobalt, I have several S9's now showing 1 fan? So they won't hash. Anyone else seeing this issue?

[PassThePopcorn]

with the latest firmware, chains frequency is not working.
can only see chains 6,7 and 8 on the miner page.
changing the frequency under the cgminer page is not affecting anything.

anyone?
thanks!

Try changing 1,2 and 3 that seemed to work for me.

[Apprentice]

Try changing 1,2 and 3 that seemed to work for me.

it is 1,2,3,4.... on the cgminer under chains but in the miner status, it shows chains 6,7,8

[brndnmtthws]

I didn't get a reply to my question earlier, so I posted an issue here: https://github.com/braiins/braiins-os/issues/6

If anyone else wants to see high quality free and open source management tooling for braiins, please jump on board

[Artemis3]

According to the Braiins page, the R4 is supported. Their support has confirmed this and added that they have tested it on multiple R4’s. I will have to try removing the 4th wire, thank you for the tip! Can it be reinserted without damage?

Yes you can reinsert it again if you want, in the exact same position it will click again and stay in the plug as it was.

Strange, I don't see the R4 mentioned anywhere in their documentation, web site, or first post of this Thread. Else i would have tried it on mine...

[sarcheer]

Yes you can reinsert it again if you want, in the exact same position it will click again and stay in the plug as it was.

Strange, I don't see the R4 mentioned anywhere in their documentation, web site, or first post of this Thread. Else i would have tried it on mine...

Will be giving the plug removing idea a try today, will update with results.

Its listed the two places below:

[Artemis3]

I'm sure I checked the download page before, that must have been added recently...
I guess I'll give it a try.

[sarcheer]

I'm sure I checked the download page before, that must have been added recently...
I guess I'll give it a try.

Don't! Braiins support got back to me this morning saying there are a handful of variants of the R4 which the FW simply doesn't work on for unknown reasons. There is also no SD card slot so no way to revert to factory. I'm in a pickle with this R4 (glad I only did one machine) until Braiins figures this out.

[Artemis3]

Don't! Braiins support got back to me this morning saying there are a handful of variants of the R4 which the FW simply doesn't work on for unknown reasons. There is also no SD card slot so no way to revert to factory. I'm in a pickle with this R4 (glad I only did one machine) until Braiins figures this out.

Can't you revert to factory firmware using restore2factory.py?
https://docs.braiins-os.org/#migrating-from-braiins-os-to-factory-firmware

[sarcheer]

Can't you revert to factory firmware using restore2factory.py?
https://docs.braiins-os.org/#migrating-from-braiins-os-to-factory-firmware

I thought you had to have already made a backup of the factory firmware?

Edit: the command references the backup you were *supposed* to have made before upgrading to bOS. You can't make this back up without using an SD card which my R4's lack a port for I realized this after I installed, thinking I could always use my other R4 running Bitmain FW to make the back up SD card.

[Artemis3]

I thought you had to have already made a backup of the factory firmware?

I know it makes one when you install it from console, not sure about the "web" option since i have never tried it.

BTW: They updated the docs about the R4: https://docs.braiins-os.org/#braiins-os-versioning-scheme

[sarcheer]

I know it makes one when you install it from console, not sure about the "web" option since i have never tried it.

BTW: They updated the docs about the R4: https://docs.braiins-os.org/#braiins-os-versioning-scheme

Haha well I guess I was the guinea pig! Hopefully they figure it out soon. If you manage to make a back up of the fw from your R4 please do let me know!

[Ziggybear]

I have an S9 and S9j both run great on 2018-11-27-0-c34516b0.

But I cant connect to some pools, with or without the asic boost. Do pools have to change anything or have I done something wrong?

Main pool I can not connect to is: stratum+tcp://bsv.svpool.com:3333

It always shows as Dead

[Shad0wSmurf]

Haha well I guess I was the guinea pig! Hopefully they figure it out soon. If you manage to make a back up of the fw from your R4 please do let me know!

Run the backup for brains via ssh on the other R4, then use the backup restore command to force it to the other R4 with the others backup

[sarcheer]

I have an S9 and S9j both run great on 2018-11-27-0-c34516b0.

But I cant connect to some pools, with or without the asic boost. Do pools have to change anything or have I done something wrong?

Main pool I can not connect to is: stratum+tcp://bsv.svpool.com:3333

It always shows as Dead

are there any other servers available from svpool for you to mine to? Can you ping the stratum and see that its available?