Bitcoin Forum

So we have multiple m30s units that have a problem with one hashboard. Something like 'error 542- Slot 2 loss balance'.
Miners with this type of issue, seems to get into a never ending, restart loop and don't hash on any hashboard, even though the problem is with just one board.
We realized that we can physically remove the problem hashboard from the miner, and then the unit starts hashing on the remaining 2 hashboards.
However physically removing hashboards takes time, and messes up the air flow dynamics inside the unit.

Anyone know if there's an easier way to 'disable' one problem hashboard on whatsminers without having to physically remove the hashboard.

I never heard if there is a tool to disable one hashboard.
So I guess the only way to disable it is by physically removing it from the unit.

There is no problem disassembling the unit just make sure do not rush and clean them and assemble them properly.

Hi, I have the same problem (Error Code 542). I took it out the SM2 Hashboard, and now the miner is mining (66%), but I notice the fan-in and fan-out speed are faster than before. Do you have the same problem? Can you repair the hashboard?. Thank you in advance.

On that error code, I think it's related to an ASIC Chip and maybe one of the Chip is broken. Did you get this error after you remove the hashboard? Or did you get this error with or without the SM2 hashboard as you said?

If you get the error after the hashboard is removed then try to replug the other hashboard and check the cable if it was plugged properly then test it again.

But if you receive the error with or without the hashboard then find the broken hashboard that cause that issue and remove it and then you can look for a repair center near you from this link below.
- https://www.zeusbtc.com/ASIC-Miner-Repair/

Unfortunately, there is no way on the software level for this, if you want to maintain the same airflow then I'd imagine the only way is to seal/isolate some of the pins on the adapter plate that connects the bad hashboard, this way the miner would think the board is not attached and won't do go into an endless loop.

Meanwhile, you could ask their support here > https://t.me/whatsminercommunity , maybe, they have made a new update in regards to this issue, but as far as I know and up to my most recent updates, there is none.

You can check out the repair manual for the M30S hash board which has some case studies for error 542.
https://www.zeusbtc.com/articles/information/3703-whatsminer-m31s-m30s-m32-series-hash-board-repair-guide