Now I'm wondering if unplugging the affected miner from the bus would work. Might be tough to do, but it would let me use the other seven miners on that module without having to try and repair the broken one.
I've done this. It works.
Just remove the screws and peel/pull it off (the thermal paste will stick a bit). Depending on which one it is, you may have to remove the backplane board to access all the screws.
Bogart (and anyone else who has tried) how did you do it and did it let you use the remaining 7 of the workers or only 6 on the module?
In my b3, I found that the module is one big pcb...
Mine was in the batch 1/2 style (a clone made by Strombom actually), with 10 chips to a PCB. Yes, the remaining 7 still ran.
One big PCB definitely makes disconnecting just one "miner" difficult. I'm not coming up with an easy solution.