Hey folks,
I'm getting started with the raspberry pi 5 with active cooler, AI hat, and camera. I noticed after getting the ai hat setup running some hailo example scripts that the active cooler wasn't working. I know it worked before when I booted it to raspberry pi OS bookworm before but I recently had to format the SD and have started from scratch. OS: Debian GNU/Linux 12 (bookworm) 64 bit
For starters I've tried doing stress tests with stress --cpu 4 --timeout 300
and the fan isn't turning on even with temperatures as high as 74C
I restarted the pi and the fan briefly spins on boot, but seems to never turn on after that
I tried manually turning on the fan with pinctrl FAN_PWM op dh
but got nothing. I've tried the same with pin 18 since I've read its the default fan put, but nothing there either.
I verified the fan cable connection and it looks good.
I haven't found much documentation on the fan besides default operating temperatures and I'm not sure how to trouble shoot beyond this.
Ill go through some changes I've done that may have interfered with the fan:
- updated the interfaces to enable SSH VNC SPI I2C Serial Port Serial Console - this I had to do to recognize the camera I'm using
- reinstalled a new version of python since the hailo example scripts were coming up with errors. I upgraded to python 3.13 from 3.11 on initial boot
Any insights would be super helpful, thanks
I'm getting started with the raspberry pi 5 with active cooler, AI hat, and camera. I noticed after getting the ai hat setup running some hailo example scripts that the active cooler wasn't working. I know it worked before when I booted it to raspberry pi OS bookworm before but I recently had to format the SD and have started from scratch. OS: Debian GNU/Linux 12 (bookworm) 64 bit
For starters I've tried doing stress tests with stress --cpu 4 --timeout 300
and the fan isn't turning on even with temperatures as high as 74C
I restarted the pi and the fan briefly spins on boot, but seems to never turn on after that
I tried manually turning on the fan with pinctrl FAN_PWM op dh
but got nothing. I've tried the same with pin 18 since I've read its the default fan put, but nothing there either.
I verified the fan cable connection and it looks good.
I haven't found much documentation on the fan besides default operating temperatures and I'm not sure how to trouble shoot beyond this.
Ill go through some changes I've done that may have interfered with the fan:
- updated the interfaces to enable SSH VNC SPI I2C Serial Port Serial Console - this I had to do to recognize the camera I'm using
- reinstalled a new version of python since the hailo example scripts were coming up with errors. I upgraded to python 3.13 from 3.11 on initial boot
Any insights would be super helpful, thanks
Statistics: Posted by dre3352 — Tue Sep 16, 2025 7:57 pm