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Compute Module • Re: Compute Module 5 Fan goes to 100% on shutdown

More debugging is happening over on X: https://x.com/Mirko_DIY/status/1868950799952330883
What I wanted to check today is whether this problem can be solved in some simple way, by independently of turning off the main 3.3V power rail (without CM5 configuration).

Cutting off the 3.3V power supply solves the problem (parameter "POWER_OFF_ON_HALT=0") but not everyone has a module configured this way.

So far, adding a pull-down resistor can't fix the issue (only by cutting out the 3.3V rail).
If you want to add a resistor then a 10K from FAN_PWM to CM5_3v3 should fix the issue.

Statistics: Posted by dp11 — Tue Dec 17, 2024 3:47 pm



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