FX505DT-HN657T fans don't run every other boot

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As i quoted, turbo boost is enabled:

To check this the simple way, with onboard tools, open a terminal and type:

watch -n1 "cat /proc/cpuinfo | grep MHz"

Then open a second terminal let the cpu work:

for i in $(seq $(getconf _NPROCESSORS_ONLN)); do yes > /dev/null & done

You should see that the cpu freq goes up.
This kills the cputest:

killall yes

Maybe another terminal to watch the temperature:

watch -n1 "sensors | grep Core"

In general, if the Fan is controlled by the UEFI, then sensors don’t display the RPM of the fan. Conclusion: it is controlled by the OS and therefore linux.

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