One of the units has the following on the ASIC stats page.
LOOP[1] ON TO:0
2: disabled (Asic all engines fail BIST)
When I first power up the unit the stats all look fine, about 1 minute or so after hashing begins, I hear the fan spin down and then back up and this message is there. Hash rate also drops to about 1400Ghs from 1650 at the same time. Running at max setting or underclocked dosent't change anything. Have also tried 2 different power supplies (seasonic 1250 gold and EVGA 1300 G2) that are running without issue on the other SP20. Current settings are:
Fan = 80
Start volts all .73
Max volts .735
Max PSU all 275
These are my first Spondoolies, have been mining with Antminer for about a year so forgive my lack of knowledge on the Spondoolies side.
I've reached out to Spondoolies support but no response so far. Appreciate any thoughts or suggestions.
lower your numbers
fan = 80
volts = .69
max volts = .695
max psu all 250