Congrats!
That was a weird one, glad to found it and was able to correct it!

Impossible.
The TCH version is for 2 x 3 asics = 6 in total.
It can not work fully with an LV08 since it is missing support for the 3rd VR.
You would be hashing at only 66% of what it is capable of.


I have the LM v1.0.0 image available at my website for download as well:
https://www.dth.net/crypto/miners/lucky/lv08/firmware/

I was not referring to you but the LV08 image out on the github might have the config.cvs included for the LV07.
LV07 has 2 asics parallel to eachother on the same VR (Voltage Regulator)
vs
LV08 has 3 x 3 asics in series on 3 VR's.
The log files imo shows that the ESP32 is not able to read certain aspects of the VR because the wrong config was included.

Since the author is already involved, I will now stop communicating.
He knows best!

Thank you for the additional feedback, much appriciated.

Did you power cycle after the upgrade ?
off (unplug power) - wait 3 seconds, turn it on again ?


really looks like the setup for an LV07 instead of the LV08

What doesn't work ? were you still able to access the webgui? did the display still work ?
It has happened before that the config.cvs file for the LV08 was included in the LV08 factory image.
That would prevent the ASICS from getting power. In the log files you would find that condition.
If that is the case, once you have a working 2.6.0-1.0.3, just updating the www.bin & esp-miner.bin from the above github via the WIFI WEB GUI interface, would get you upgraded to 2.7.1-1.0.7

Is it possible to open the "issues" option on github so people can respond there in case there are issues?

I had to help 2 persons who flashed your factory 2.61.-1.0.4 image on a virgin LV08 with luckymineros.
Resulted in only 33% of hash power, only 1 of 3 VR's enabled.
In order to confirm, I had one virgin LV08 left that I converted my self and I can confirm

It turns out it has the config.csv from the LV07 is included in the LV08 factory image.
The LV07 has only 1 VR gets initialized and you only get 1/3 of the hash rate.
downgrading to 2.6.0-1.0.3 and upgrading www.bin & esp-miner.bin to 2.6.1-1.0.4 works great


Might want to look into that

Thank you for all your efforts

I have experienced the same.
And it is mostly 1 of the VR's that stops working but not always the same. eg VR1 stops, VR2&3 keep working. [powercycle] all 3 working, and after a while VR 1&2 working, VR3 no longer produces output power.

I wish someone would include syslog client into bitaxeos so all logfile could be collected on a syslog server in a LAN so we could see the log files that triggered the event.
That would tell us a lot more probably

I provide only 120V AC input to the PSU, making it even less efficient.

At 550/1250, fan fixed at 80% my LV07 hashrate is 1050GH/s, Asic temp is 55C, VR temp =51C, gui says 26.9 Watt, AC measured is 28.6 Watt
At 600/1200, fan fixed at 80% my LV07 hashrate is 1120GH/s, Asic temp is 55C, VR temp= 52C, gui says 26.9 Watt, AC measured is 28.5 Watt
Same power consumption but just over 6% more hash capacity.
Asic lottery ..
Worth checking out what each LV07's individual sweet spot is.

I hope it is 1.25Volt ;-)


The only thing measured is the power from the voltage regulator to the  ASIC's.
What is not measured:
The power to the ESP32 (minimum)
The efficiency of the VR (input is more than the output)
Power to the Fan (original fan has label of 12V 0.12amp = 1.44 watt)
and like you mentioned: the efficiency of the PSU (AC -> DC)

Soweit ich weiß, nur für den Zyber-8S.
8 x BM1368 (supra) 6,4–6,9
Der erwartete Preis liegt bei 7xx US-Dollar.

Someone flashed his LV08 with the latest greatest 2.6.0-1.03.bin image and his unit shows up as a 402 board:

Flashed with "bitaxetool -p COM4 -f esp-miner-factory-lv08-v2.6.0-1.0.3.bin"

It is working, but afaik:


My LV08's all show 302 board

Any idea ?

Just adjusting freq/voltage.
I haven't changed anything in the cooling as of yet.

You convinced me:

My old overclocked situation:

615 Mhz /1235 mV  -> 5.1  Th/s at 158 watt AC input.

Now:
557 Mhz /1150 mV  -> 4.39 Th/s at 112 watt AC input

for 16.4% more hash power, I need 41% more power

Today I replaced the 2 fans in my LV08 with the noctua fans.
Within minutes the unit overheated with my setting.
Put the fans on 100% instead of auto and with default settings it kept cool.
Now I am trying your settings of 550/1150 on both my converted LV08 and my original LV08's
Will compare in about 12 hrs time.
Thank you for the suggestion.

No i haven't
I am going to replace the fans of 2 of my LV08 today with noctua's and put new (better?) thermal past on the heatsinks.
See how that helps, will keep you posted.

I am running 615/1235
Average: 5.10 TH/s
Average: 26.66 J/TH

I had bought 2 extra LV08's that I kept running on luckyminer OS for over a week before converting them to modified bitaxeos today.
First one was down less then 40 minutes before hashing again.
The second one was a little bit different.
At some point when I was soldering I grabbed the heatsink and "something" moved a bit.
I inspected and everything seemed normal.
I flashed modified bitaxeos and it started hashing, but only at 2/3 of capacitly.
From the log files:

Oops, no I had the same as person above.
I took the unit apart again an concentrated on the part that had moved
It turns out there are 2 heatsinks on the LV08:
A large one for the 9 asics and a smaller one for the 3 VRs (voltage regulators)
https://www.dth.net/pmt/luckyminer/img/VR1.jpg
https://www.dth.net/pmt/luckyminer/img/VR2.jpg
The only thing I did was push some of the pink heatsink stuffback to the area where it touched the VR (all 3 spots)
Screwed the heatsink back on the PCB and reassembled the unit.

Firing on all cylinders (I should say VR's) again:
₿ (4553526) TPS546: TPS546_0 - Got Vin: 12.094 V
₿ (4553526) TPS546: TPS546_1 - Got Vin: 12.062 V
₿ (4553536) TPS546: TPS546_2 - Got Vin: 12.062 V
₿ (4553536) TPS546: TPS546_0 - Got Vout: 1.230 V
₿ (4553536) TPS546: TPS546_0 - Got Iout: 34.688 A
₿ (4553546) TPS546: TPS546_1 - Got Vout: 1.229 V
₿ (4553546) TPS546: TPS546_1 - Got Iout: 38.250 A
₿ (4553556) TPS546: TPS546_2 - Got Vout: 1.229 V
₿ (4553556) TPS546: TPS546_2 - Got Iout: 27.531 A
₿ (4553566) TPS546: TPS546_0 - Got Temp: 70
₿ (4553566) TPS546: TPS546_1 - Got Temp: 75
₿ (4553576) TPS546: TPS546_2 - Got Temp: 63

Is it hashing at all ?

My Lv08 with luckyminer os shows these temps.

Can you post your temperatures please ?


Could be a lot of reasons.

To test you should first start by setting default values for freq: 485 Mhz
and default voltage: 1200 mV, save and restart.

Luckyminer basically copied the design of a bitaxe hex ultra and made it with 9 chips instead of 6
This is screenshot of the schematic diagrom of a the bitaxe hex ultra:
https://www.dth.net/crypto/miners/bitaxe/hex/set_of_3_BM1366_in_voltage_domain.jpg
As you can see 3 BM1366 are connected to 5 Volt for the control, but the power of the computing part of the asic is daisychained in series.
3 x 1200mV = 3.6 Volt being fed to one voltage domain.
The original HEX has 2 voltage domains  so 2 x 3 chips in series
The LV08 has 3 voltage domains : 3 x 3 chips in series.
Each voltage domain has its own VR (voltage regulator)
The 7F,24 & 14 is the address of the VR on the BUS to the ESP32 microcontroller.

If you let the unit go "cold" so switched off for 30 minutes (ambient temperature) and you plug it in and check in the log files, does it work
Maybe you can try to capture the log file as fast as you can ? That should show in all 3 are starting up at all or not.
If the temp goes to high it will protect the hardware by setting low fre & low voltage to not let the asic burn up.

It could be chip issue, but more likely soldering issue
Weird thing is that all 3 VR domains seem to be affected.
I would have suspected 1 or 2 but not all 3 in a random sequence.

Am I reading it correct that you closed the PR at Skot's bitaxe source tree ?
https://github.com/skot/ESP-Miner/pull/700 

I got into a heated argument with skot about support for LuckyMiners.


https://www.dth.net/pmt/bitaxe/skot_renaming_PR.jpg

https://www.dth.net/pmt/bitaxe/classy_response.jpg