...
Fewer errors for the most part, and more reliable. Some of those s9's are horrific on their reliability.
And others refuse to die. Still have my only Batch-1, 2x batch-3's and a batch-5 along with a slew of others up to batch-25. When BM stopped accepting
BTC I moved to Avalons and have not looked back since.
Think the earliest s9 that has had even a fan die is a batch-9. After that batch- several hash board faliures and 2 fans, etc. Probably 1/2 of the s9's I have after batch 11 have been retired and replaced with the Avalons, the others get donor boards and controllers from the retired ones as-needed.
As for
Somehow I've been around for half a year and am just hearing that Antminers don't need a RPi to control it... Mind = Boom
That is/was their only nice thing. Pure plug&Play aside from just needing to enter user & pool info. However BM software is not exactly Open Source. Ja it *is* out there but...
Yeah my four s9's are a-ok...I had one board die right off the bat on one of them (but could have been a bad PSU problem)...but the rest have been fine. They're in a data center so don't have to worry about heat or exhaust issues too.