Before these errors would not be in the kernel. It would restart with no error. Now you can see Im getting more info. Any ideas what it could be? Keep in mind that if its the psu that would mean that there are 20+ bad psu out of the 257 miners. Also these miners are brand new and only been mining for 1 month. Psu's are brand new.
2021-02-06 02:32:10 chain avg vol drop to 0.99
2021-02-06 02:34:47 set_voltage_by_steps to 1280.
2021-02-06 02:35:27 read asic reg error: expect chain = 0, chip = 0, reg = 176, got chain = 1, chip = 48, reg = 128
2021-02-06 02:35:35 chain avg vol rise to 13.25
Please use the code tag to paste kernel logs, my take on this issue is that you damaged all those 20 PSUs by feeding them improper voltage or any other electrical related issue, the PSU acts differently when plugged elsewhere gives more strength to the theory, to confirm/deny this theory use a PSU which has not been plugged in that "bad" area of the farm on one of the "bad" miners, obviously, the test should be done in a different outlet/area, chances are it will work perfectly fine, if not -- then there is even worse news, which I doubt for now.