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Troubleshooting • [Solved]RPI5 Latest Bookworm PWM cannot get fan to run 100% at start.

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Edit:
Solved.

viewtopic.php?t=390141#p2327397

/Edit:


I just installed a argon thrml 60-rc tower on my new rpi5 16GB.

Fan is plugged into the PWM RPI5 fan header behind to the USB 2.0 port.

For the life of me I cannot get the fan to run at 100% when bookworm starts and am in the desktop.

I added to /boot/firmware/config.txt at the end of [All]

Code:

dtparam=cooling_fan=ondtparam=fan_temp4=75000 dtparam=fan_temp4_hyst=2500 dtparam=fan_temp4_speed=250
I followed this aswell and the fan runs 100% but on reboot to desktop it stops.

https://raspberrypi.stackexchange.com/q ... 563#145563

I am ripping my hair out.

Statistics: Posted by berryuser — Sun Jul 20, 2025 3:57 am



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