QUAD SATA HAT PWM CPU Fan not spinning

#1

Hello,

I bought a QUAD SATA HAT KIT for your Raspberry Pi 4. I assembled it, everything is working fine, except one thing: the PWM CPU Fan not spinning.

I started to test it and when the QUAD SATA HAT is not connected to the Raspberry Pi, it’s spinning.
But when I connect it on the GPIO port, it’s not spinning, just for one second when I turn on the Raspberry Pi (give the power).

Even if the CPU temp reach the 45’C - 60’C it’s not spinning.

Videos about the problem: https://drive.google.com/drive/folders/1rKDo3vGc4j_P9gDxn288f6r9V5eEeQM1?usp=sharing

What could be the problem? The CPU fan? The QUAD SATA HAT? Something software related?

Many thanks,
RayMond

#2

do you have your pigpiod service running?

#3

Yes, it’s running:

pi@raspberry-pi-4:~ $ service pigpiod status
● pigpiod.service - Daemon required to control GPIO pins via pigpio
Loaded: loaded (/lib/systemd/system/pigpiod.service; enabled; vendor preset:
Active: active (running) since Fri 2020-11-27 04:06:17 CET; 8h ago
Process: 461 ExecStart=/usr/bin/pigpiod -l (code=exited, status=0/SUCCESS)
Main PID: 473 (pigpiod)
Tasks: 6 (limit: 4915)
CGroup: /system.slice/pigpiod.service
└─473 /usr/bin/pigpiod -l

nov 27 04:06:16 raspberry-pi-4 systemd[1]: Starting Daemon required to control G
nov 27 04:06:17 raspberry-pi-4 systemd[1]: Started Daemon required to control GP

#4

@setq do you have any idea what could cause the problem?
The CPU fan or the QUAD SATA HAT?

#5

Do you have other code running that might interfere with the assigned GPIO pins?

#6

To my knowledge no. You can see on the video it’s not spinning after I turn on the QUAD SATA HAT (just for a second). I think the CPU Fan is not affected by any code running on my Raspbian OS (it should boot up first).

#7

I got a new CPU Fan from Allnet China and it’s working fine!