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

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POWER_OFF_ON_HALT can't cut out the main 5V rail from the fan port.
PWM line regardless of 3.3V rail voltage after shutdown OS is permanently in high level.
So from my perspective, the only way to fix this issue is by adding an extra load switch between the 5V and fan port.

Maybe in the firmware, there is a chance to somehow set the PWM line to 0 if the OS is shutdown?
cm5_sch.png

Statistics: Posted by adsp531 — Tue Dec 17, 2024 11:59 pm



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