I noticed yesterday that my fan started coming on above 50 again, and the bcm2712-rpi-5-b.dtb in /boot/firmware has been updated and doesn't appear to use the parameters set in boot/config.txt. Does this mean the we don't have the version yet to allow control of the temperatures for the fan ?download the new .dtb, from https://github.com/raspberrypi/rpi-firm ... pi-5-b.dtb
it should be in /home/USER*/Downloads
(replace USER* with your username)
Backup existing files...
sudo cp /boot/firmware/bcm2712-rpi-5-b.dtb /boot/firmware/old_bcm2712-rpi-5-b.dtb
sudo cp /home/USER*/Downloads/bcm2712-rpi-5-b.dtb /boot/firmware
then
sudo nano /boot/firmware/config.txt
add the new lines at the end...press Ctrl & XCode:
dtparam=fan_temp0=65000dtparam=fan_temp0_hyst=5000dtparam=fan_temp0_speed=75dtparam=fan_temp1=70000dtparam=fan_temp1_hyst=5000dtparam=fan_temp1_speed=128dtparam=fan_temp2=75000dtparam=fan_temp2_hyst=5000dtparam=fan_temp2_speed=192dtparam=fan_temp3=80000dtparam=fan_temp3_hyst=5000dtparam=fan_temp3_speed=255
press Y, press Return
reboot
Fan should come on above approx 65degs...
Statistics: Posted by gordon77 — Wed Jan 24, 2024 9:01 am