Download .zip file (or git clone) to disable BIOS fan control for Dell laptops.
Then, as root:
unzip -t dell-bios-fan-control-master.zip (test zipfile; everything looked fine, so unzip files...)
more Makefile (look what it's going to do; looks fine, so compile with...)
Compiled fine, so:
./dell-bios-fan-control 0 (turn off dell bios fan control)
BIOS CONTROL DISABLED
Fan was still idling around 2500rpm. Hmmm.. recalled post indicating uninstall then reinstall i8kutils with the same /etc/i8kutils.conf config file.
Uninstalled and reinstalled i8kutils with:
apt-get remove i8kutils
apt-get install i8kutils
Fan immediately stopped upon reinstalling i8kutils.
Looks like it's working. Fan turns on properly when cpu temp hits 55C then turns off quickly because fan came on at the high setting.
Will continue to monitor temperature and fan states with 'sensors' to ensure all is working as configured in /etc/i8kutils.conf.