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 Post subject: umPX Temperature warning
PostPosted: Tue May 12, 2020 6:58 pm 
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Joined: Mon Nov 30, 2015 5:05 pm
Posts: 10
Dear audiofreaks and stereotool crew,

For a while we are using uMPX to feed three FM transmitters on different sites, and we are very happy with the quality. We are debugging some issues we have and while I was doing that I saw the notification that I have attached to this thread. It states the the temperature of the Raspberry is running too high.

It is very strange to see, as we are running Pi 3B+ types at all our transmitters. This one has the lowest CPU temperature when we check it via Linux. How must we interpret this, is something wrong with this Pi? Can you maybe tell when this warning is raised?

Kind regards,
Klaas-Jan


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umpx temp throttle.jpg
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PostPosted: Thu May 14, 2020 9:00 am 
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Joined: Tue Sep 15, 2015 12:22 pm
Posts: 298
µMPX doesn't decide whether or not the CPU is throttled, this is a decision made by the OS (I'm guessing you're running Raspbian). You would see the same thing when running the command
Code:
vcgencmd get_throttled
in the terminal. You seem to have hit the "soft" limit (at 60 degrees C) which does not do as much throttling as the "hard" limit (85). If you don't see this on your other pi's, they must be cooler than this one or are running an older Raspbian version which does not have the same throttling thresholds or are not 3B+ models but 3B's.

See this link for more info: https://www.raspberrypi.org/documentati ... agement.md

_________________
Software Engineer @ Thimeo Audio Technology B.V.


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