FYI, I changed all three of my QNAP TrueNAS (2 CORE, 1 SCSLE) chassis fan BIOS setting to MANUAL, which did lower my CPU temps from ~50C to ~40C, but started running into problems when the chassis fans were running at full speed.
TS-253A running CORE would detect a error and detach my boot pool every few hours, which would lock up the system.
TS-453A running SCALE would experience random re-boots every day.
Put BIOS fan setting back to AUTO on all three system and haven’t had any issues in more that 48 hours.
Both the TS-[24]53A CPUs are passively cooled, so not sure how to make sense of that.
Time slices where CPU temp is zero is when the system locked up and stopped recording CPU temps.
