Harvey

Hi tuxd3v,
my experience is quite different.
When setting up my new box, CPU temp always was below 58 °C, so the fans never got started. (According to https://wiki.kobol.io/pwm/#configuration-file, fans only start at 70 °C CPU temp.)
The inactive fans quickly led to quite high disk temps (two WD RED 8TB) of 52 °C (the upper one) and 53 °C (the lower one, directly above the board) . This seems too high given the fact WD specifies operating temps of only 0-60 °C, so one of the first things I did was to modify  /etc/fancontrol to
# Helios4 PWM Fan Control Configuration # Temp source : /dev/thermal-cpu INTERVAL=10 FCTEMPS=/dev/fan-j10/pwm1=/dev/thermal-cpu/temp1_input /dev/fan-j17/pwm1=/dev/thermal-cpu/temp1_input MINTEMP=/dev/fan-j10/pwm1=70 /dev/fan-j17/pwm1=70 MAXTEMP=/dev/fan-j10/pwm1=90 /dev/fan-j17/pwm1=90 MINSTART=/dev/fan-j10/pwm1=75 /dev/fan-j17/pwm1=75 MINSTOP=/dev/fan-j10/pwm1=75 /dev/fan-j17/pwm1=75 MINPWM=/dev/fan-j10/pwm1=75 /dev/fan-j17/pwm1=75 #MINPWM=0 With these settings, my fans are always running slowly and silently, but efficiently cooling my disks to not more than approx. 33 °.

I have updated my lcd4linux.conf for a cheap AX206 picture frame (320x240) connected to my Helios4.
If someone is interested: https://github.com/hkramski/my-lcd4linux-conf.