reflow some chip? like a notebook?
or just send it back to Bitmain and they repair the bad board?
I guess I can just unplug one board at the time and see which one is dying and let it unplugged meanwhile otherwise it will consume more electricity
thanks for your quick answer
here screenshot
https://ibb.co/kfBrqGOne of your boards is shutting off. It is probably on the edge of failure.
Look at #8. 0 GH's.
Again #8 is the one that is failing. Unplug one of the outside boards and see if it is still hashing at the same amount. If it is, the unplugged board is the bad one...if not, the one that is plugged in is the bad one.