Troubleshooting • Re: Raspberry Pi 5, official active cooler always running at 100%

Has anyone fixed this my Raspberry Pi 5 is sat in it's box it is far to noisy to use, the fan just runs at 100% all the time. I've checked the pins they're all fine. I'm running Raspian Bookworm it does stop during the boot up sequence for a second then starts up again at full speed even when under 40 degrees C. Driving me crazy I really want to use it but the noise is really annoying. If I run any commands to find it it's not being regonised when I first bought it it worked adding an SSD seems to have started the problem, it's the Pimoroni one don't know if it's just coincidental because if I remove it and go back to an SD card it doesn't fix it!

ls -l /sys/class/hwmon/
returns:

hwmon0 -> ../../devices/virtual/thermal/thermal_zone0/hwmon0
lrwxrwxrwx 1 root root 0 Feb 20 18:23 hwmon1 -> ../../devices/platform/axi/1000110000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/nvme/nvme0/hwmon1
lrwxrwxrwx 1 root root 0 Feb 20 18:34 hwmon2 -> ../../devices/platform/axi/1000120000.pcie/1f000c8000.adc/hwmon/hwmon2
lrwxrwxrwx 1 root root 0 Feb 20 18:34 hwmon3 -> ../../devices/platform/soc/soc:firmware/raspberrypi-hwmon/hwmon/hwmon3

cat /sys/kernel/debug/pwm

platform/107d517a80.pwm, 2 PWM devices
pwm-0 ((null) ): period: 0 ns duty: 0 ns polarity: normal
pwm-1 ((null) ): period: 0 ns duty: 0 ns polarity: normal

uname -a

Linux allpi5server 6.6.17-v8-16k+ #1734 SMP PREEMPT Mon Feb 19 12:06:09 GMT 2024 aarch64 GNU/Linu

Statistics: Posted by allphasephil — Tue Feb 20, 2024 6:04 pm

---