Librem Mini: I have 4 cores on 100% in "top", but fans are not on full speed

Hardware
1

I’m on Qubes OS 4 on Librem Mini v2.

What could explain the behavior explained in the title? Is there a way for me to see the CPU temperatures? Could there be any risk of CPU overheating?

2

It’s been 10 minutes now, the computer doesn’t feel insanely hot from the outside, even though the fan (as I explained) is not super-loud. (I have seen the fan go much faster when I’m doing much less work.)

Strange. Could this be more dependent on which cores are being used?

3

Are you sure the fans are working at all? Contact me at support@puri.sm

4

I use gkrellm for monitoring temperatures (and other things).

5

Are there more than one fan? Anyway, I have used the computer more and the fans seem to be working. Qubes has a temperature utility. I have seen temperatures above 70°C but the fans are running more loudly at those temperatures. Normally the temperature is closer to 60°C.

Is this expected?

6

there is a single fan attached to the heatsink on top of the CPU/GPU dies.

IIRC, the fan doesn’t kick in until around 62*C

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7

This just means that cooling is effective - the fan isn’t triggered based on CPU load, but on temperature. With good cooling (either passive or with fan at low speed) it will take it a while for that temperature to get high even at full loads. External temperature and the amount of time it’s being put on full load will matter as well.

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