Increase Raspberry Pi PoE hat fan threshold

[ihavenoidea]

I’ve just setup a Raspberry PI 4 (4GB Ram) with Hass.io and a PoE Hat. I’ve noticed the fan pretty much comes on every 10 seconds (for about 10 seconds) and then turns off again. Is there a way I can control the fan speed or even turn it off? I’m pretty sure the CPU is adequately cooled so I’m baffled why it needs the fans to be on.

Monitoring the CPU temperate through SSH shows the server is currently running on average 47c.

[tom_l]

Very first search result for poe hat fan:

Pi PoE HAT fan control

I had the same issue and it was driving me crazy… After searching online and in here, I was able to resolve it. To edit config.txt, I shut down my pi and pulled the SD card and opened it up on my PC. From there I was able to open config.txt and at the bottom of the file I simply added ## poe_fan_temp ## temp0 is lower speed fan, temp1 is high fan speed. ## Current setting is fan turns on at 70C, turns off when it comes back down to 65C. ## If the temperature reaches 75C it will go full…

[G8YTZ (Justin)]

Hi Tom, could you post your exact config you used? I’d be very grateful. I can’t get mine to work. is ## in Celsius or milli degrees for instance?

[tom_l]

No, I don’t use it.