Hi Artemis.

Thanks a lot for this info. I'll try it out when it gets a little warmer outside.

BR.
Steff

Hi.

I'm running BOS+ from SD card on a single S9 13,5 THs version.

I've tried different Autotuning settings and so far it seems to run most efficient (taking into count profability) at 1000 W setting (930-935 W measured at the wall) and then mining ~12,15 THs.

I have the miner in a not yet insulated garage and outside temp is app. 5^oC.

I've noticed that the miner performs differently when rebooted at different temperatures. Usually it performs better at warmer temperatures.

Because of this I'm wondering if it would perform better if i rebooted it and retuned at a higher temperature. However when once tuned at 1000 W the settings are stored and the only way I can get it to retune is to choose another W-setting.

Is there a way to reset the tuning at 1000 W or is the way to go to retune at 999 or 1001 W?

It has now been tuned at 100 W-steps from 800-1600 W and I would not like to reset all autotune settings at once.

Regards.
Steff

For some reason my miner got a new IP from the router even though I set the same mac-address as with Bitmain FW. However we put BOS into my friends miner simultaneously (connected to same router) using his Bitmain FW-mac and got no conflicts. I can't remember if his miner got a new IP though.

Just saying that don't be to sure about the "it would have the same IP address as it had with the factory firmware" part.

BR.
Steff

Hi.

I understood you are using the SD-method?

In that case if you, like me, have a windows-machine with SD-card reader you can just remove the SD card from the miner, put it into your computer and change the mac addres in uEnv.txt on the SD card with notepad++ or similar.

I used the same mac-adress as my miner had with original FW, but if you have several miners the main thing is that you give each miner a unique mac.

BR.
Steff

Hi.

Thanks for the info.

BR.
Steff

And this is correct for european miners, right?

stratum+tcp://de.ckpool.org:3333

BR.
Steff

Hi.

Yes you're completely right about that the heat does not increase as there is no more energy added. However the heat already generated will transfer to places in the miner where it's cooler when hashing because of the airflow.

I've never opened a miner (other than removing the fans to blow dust out and moving the jumper on the control board) so I don't know what other component are in there except for the chip boards, if any. The control board is also outside the miner so that is obviously not affected.

Anyway I'm sure you're all correct and next time I'll just unplug the power without thinking any more of it.

Thanks for your opinions.

BR.
Steff

Hi.

Didn't try anything else than "poweroff" which I read somewhere in Bitmain support a long time ago. I'll try the above when I get to it. Thanks.

And no, caps-lock was off and I wrote it correct.

"Poweroff" did something as the red led on the control panel came on, but it didn't stop hashing. With original firmware after "poweroff" red lights on chipboards turns off in about 30 seconds (one at a time) and you can feel the air coming from the fan cool down.

Might be "somename" is correct, but for me it feels just wrong to unplug a hot miner knowing that the hot air from the chips gets more or less stuck in the miner for a much longer time when the air cirulation stops.

BR.
Steff

Worked like a charm!!! Thanks a lot!

BR.
Steff

Edit:
I needed to restart cron before I got it to work (as written in BOS scheduled tasks window), but after a little googling I got that fixed by logging on to the miner with Putty and writing the command "service cron restart".

I write this edit also because of another thing. With original firmware I always stopped my miner (when needed) with putty and the command "poweroff". Then it stopped mining, but fans kept running so that it cooled down before unplugging.

This doesn't seem to work with BOS. Is there a way to Power Off keeping the fans running? As I have much higher chip temperatures with BOS (around 80 degrees celsius vs 60 with original FW) it just seems wrong unplugging it without cooling it down firs.

Nice! You're spoiling me with all the info.  

I checked out the Crontab generator and now i believe i got it.

I'm gonna try this during the weekend and think the following should be right (let's say I will be doing this at 10 AM saturday):
- I first put 5 10 * * * /etc/init.d/cgminer reload. Then the miner should process a "save&apply"=reload cgminer at 10:05.
- If this works I put 0 */12 * * * /etc/init.d/cgminer reload to get the same command processed once every noon and once every midnight.

One last question (for now): Should the >/dev/null 2>&1 crontab is giving be left out?

BR.
Steff

Hi.

Thank you very much for this info. I will do som reading and next time I go check my miner I will try it out.

Sorry for the stupic questins, but:
- Can this be written straight into the scheduled task window in BOS web interface?
- Should I write it just as you wrote, or should there be something else instead of the stars?
- I assume the "6" stands for hours. Is there possibel to put in minutes also? Like 0 hours and 5 minutes? Just to check if it works.

I might find the info myself when I get to read the info on https://crontab-generator.org/, but I don't have the time right now.

BR.
Steff

I agree. Might be really fun.  

In your case, when electricity is free (at least up to 40 kW), I do understand your reasons as you can run a certain amount of miners up to 40 kW. Until you reach 40 kW you can just add more miners and if you reach 40 kW you just remove a few. In this case the only thing that matters is minimum W/THs (if you already have enough miners and don't need to take miner investment costs into the calculations). With the 13 cents/kW the situation is probably pretty much the same.

In my case with my electricity costs the fact is that the only reasonable thing to do would be to just unplug and buy the bitcoins. The BTC I'm mining at the moment I would need to sell at 5.500 € (with present difficulty) to even break even and at present BTC price I would get not far from double amount of BTC buying instead of mining.

Sad but true.  

BR.
Steff

Hi.

I'm wondering if someone could help me with the scheduled tasks in BOS.

I'dont have my miner at home so I can't check it from the miner's web interface right now, but out of my memory there is a window in BOS web interface where you can add scheduled tasks, probably by writing some Linux commands.

As background info I'm running app. 15.5 THs with Asic Boost enabled on an S9 Jan 2018 batch 13.5 THs. The miner seems to be more sensitive when overclocked + AB and after a few days hashrate seems to drop a little bit (Now at app. 15.2 after three days). It also, if not completely, seems to be dependent of weather conditions as the miner is in a "cold" garage which changes temperature with outside temperature.

However by simply pressing "Save&Apply" in CG Miner window the speed goes right back upp where it needs to be (lets call it a soft reboot). Reboot in it's correct term doesn't do the trick so after a while (a few hours) after deep reboot i need to press the Save&Apply (soft reboot) to get the hashrate where it should be.

So I would like to schedule the "Save&Apply"-command once every 24 or 48 hours. Anyone that can help or point me in the right diection? I've been looking for a "users manual" or similar for BOS, but no luck so far and Linux is not one of my strong sides.

BR.
Steff

On the other hand...

If you, like me, only have one or a few miners and can afford the electric bill without selling off your mined btc, you will have more btc to sell later when price goes up (if it ever goes up).

I'm taking a shot at this running 15,3 THs at 1470 W (equals app. 96 W/THs) with Asic Boost enabled.

I haven't counted though at what price I would need to sell at so that running 15,3 THs at 1470 W now would be more profitable than running 10 THs at 800 W. This would be interesting maths, but you need to include your electric price, bitcoin difficulty, luck, time period etc. into the equation so it might be difficult to get a correct answer.

However, if we simplify it:

Mining for one year with 15.3 THs /1470 W
With my electricity costs (in EUR): 110 €/month = 1320 €
Lets assume i would make 0.25 btc
Selling at a btc price of 3500 € (as now) would give 875 €
Loss: 445 €

Mining for one year with 10 THs / 800 W
With my electricity costs: 60 €/month = 720 €
Compared to above I would have mined 0.25 btc/15.3 THs*10 THs = 0,163 btc
Selling at a btc price of 3500 € (as now) would give app. 570 €
Loss: 150 €

If we go forward and lets say that X = btc price to sell at (in EUR also)

-1320 + 0,25X = -720 + 0,163X
0,25X - 0,163X = 1320 - 720
0,087X = 600
X = 600 / 0,087
X = 6896,55 €

So in this case the sweet spot is at app. 6900 €/btc. In other words my setup would be more profitable selling off the btc above the sweet spot and philipma1957's setup would be more profitable selling off under.

However this is not this simple as difficulty, luck, electric price changes etc. all would need to be included in the equation, as also mentioned above, to get it correct.

I also might have got something wrong as I was counting while writing, but hopefully you understand the principle.

Apprentice:
I've also noticed that overclocking is much easier with Asic Boost turned off, but with Asic Boost off my miner pulls 120-140 W (at unchanged hashrate) more out of the wall. My PSU is rated 1600 W so with the settings I have now I would be at max without Asic Boost. Obviously the above mentioned sweet spot would also be much higher even though I probably could pull out a little more THs adding who knows how much watts.

Artemis3: Just reread your input. 82 THs/W is pretty good. What firmware are you using? (I assume you menth dividing watts with hashrate and got 82 W/THs.)

BR.
Steff

Hi all.

I tried Wolfram in my S9 earlier (and loved it), but I've now been offline for a while due to low bitcoin price.

Yesterday however I jumped back in after putting Cobalt (love it even more) on both my own and my friends SD-card.

Long story short:

My S9
- 13.5 THs February 2018 batch
- Firmware: November 2017 autofrequency + November 2018 LPM
- Running Cobalt from SD-card
- Works like a charm

My friends S9
- 13.5 THs older batch (not sure how old, but newer than C5 control board)
- Firmware: November 2017 autofrequency + November 2018 LPM
- Running Cobalt from SD-card
- No temp-readings and fans running full speed. Otherwise works like a charm.

So any solution to this yet?

BR.
Steff

Hi again.

Coinexchange support replied on this one already. Really impressed with the speed.

However in short the message was that the transaction is still unconfirmed on the network and therefor my account can't be credited. As per earlier message seems like my LABH-wallet has done a "ghost-transaction" with "ghost-confirmations". I found a new wallet version 1.08 now at Github (earlier was 1.04), but when updated still shows the same transactions and zero balance. I find it a little bit odd that the version found on LABH-website is only 1.04. I have no idea though if the "ghost-staking/transactions" has been fixed in the more recent versions.

So as per info from Coinexchange the only thing to do is to contact support team in the other end of the chain or the coin developer. Any idea which is the way to do this or should I forget about it already? As per LABH-website development crew can be found at github, discord, twitter, telegram, facebook, reddit and steemit, but the only place I'm registered at of these are reddit and I haven't really used it and don't know what to look for there.

So at the moment I don't really know wether to buy some more LABH and see if the 1.08 version of the wallet is more reliable or if I should "leave the ship" before making any larger losses. Or just buy some to keep on coinexchange and forget about staking.

BR.
Steff

Hi.

Thank you for info.

Just managed to create the ticket. Verification mail had landed in spam box (duh  ).

Really don't know what's going on here. Just tried to search the transaction in the labhcoin explorer and got error message that the transaction can't be found. I assume it should be found here even though I haven't searched for transactions before.  

The fact is that my LABH-wallet is empty and shows that the transaction to coinexchange is confirmed, but the transaction can still not be seen at coinexchange. Not a very big loss in question, but also sucks as I've been staking for a while.

And regarding time of selling. No plans on selling just yet, if I even can get the transaction recovered.  

Another reason for moving my LABH from the wallet is that the wallet doesn't seem very liable over all. I've had to reinstall it a few times as it has started "ghost-staking" e.g. staking several times a day, but the stakes never get confirmed and when reinstalled and updated these stakings have been gone.

However this time the transaction really has left my wallet. I just hope that the wallet hasn't done any "ghost-stakes" included in the transaction which screws everything up.  

BR.
Steff

Edit: Just checked an older transaction, that I know went through, and that one could be found in labhcoin explorer. This seems to me that the problem is in LABH-wallet/network and not in coinexchange. This means I'm screwed, right? Can't really see it would be possible to get hold of a LABH-developer that could reverse the transaction from my wallet.

Ok.

Thank you for the info. I'll try to create a ticket at coinexchange. However even this seems to be difficult. At coinexchange it seems like you have to sign up separately for the customer support. I did so about 10 minutes ago, but still haven't received the verification mail. Hopefully it will turn up soon or I have to try to sign up with a different e-mail address than on my original coinexchange account.

I'll let you know how it goes if I can get the ticket created.

This really sux as LABH went up from 1 to 3-4 satoshis since I sent the transaction. 

BR.
Steff

Hi.

I sent a little over 100k LABH-coin to coinexchange yesterday. LABH wallet shows that the transaction is sent and everything ok (green tick after 10 confirmations) but they still haven't showed up in coinexchange. And yes, I have triple checked the adress and nothig wrong there.

So are the coins gone in cyberspace forewer or is there anything to do to recover them?

I just reinstalled LABH-wallet using an older wallet.dat. After wallet was updated it showed that the transaction was ok just as above.

Last time ever I'll use LABH-wallet for staking if it's thisn unthrustable.

BR.
Steff

Hi.

If you set a certain frequency you can se a recommended voltage in the voltage-field and i believe that's the voltage Braiins sets it to.

I was confused because as I was increasing the frequency the recommended voltage dropped.

After this I set the frequency per board to the same as Bitmain's autotune set it before. The recommended voltages then were 9, 9 and 9.1. I locked the voltages to this and started to increase frequency step by step. I think this was a good basepoint.

I'm sure that the best setting is different for each miner and also dependent of if you have AsicBoost enabled or not (enabled in my case), but for me this worked out well. You can find my results earlier in this thread. There might also be a better setting for my miner, but in my case I seemed to get the best results (speed, power usage and error count taken into the calculations) when setting the same frequency on all boards and adjusting voltage until I got the same speed (+/- 100 GH/s) from each board.

Remember that overclocking is completely at your own risk which is also stated in Braiins-OS.

BR.
Steff

---

Try to check if you ip has changed.

This happened to me when temporarily switching from Braiins to Autotune and S9 connected to router with DHCP enabled. When switching back to Braiins the IP also switched back.

This happened even though I had the S9:s mac-address set in uEnv.txt on SD-card.

You might also want to try to delete the history in your web-browser.

BR.
Steff