I know I have had a few S19APro 110TH units fail on me under warranty. They drop down to 2/3 hashboards just like appears to be happening with the units mentioned above.
I keep hearing that the "A" version of the 19 pro series is terrible, I have always questioned why people sell it at cheaper prices than the other ones, pretty lame to have a gear that expensive die on you in a few months, reminds me of the 17 series.
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I don't know the implications of that aluminum board, they say that Whatsminer is already using the same design but the PIC thing seems tricky
It's not just the aluminum board, it's how everything works together, based on my own personal experience nothing beats Whatsminer in terms of durability, people who had enough experience with both brands will understand that it's the reason why Whatsminers sell for almost the same price as Antminer despite being slightly less efficient, it's the extra quality you pay for, of course, Whatsminer is far from perfect and there is some stupid stuff in the design which pisses people off and should have changed years ago, but just like Bitmain they don't seem to care.
