All times are UTC+02:00

Post new topic  Reply to topic  [ 2 posts ] 
Author Message
 Post subject: umPX Temperature warning
PostPosted: Tue May 12, 2020 6:58 pm 
User avatar

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,

umpx temp throttle.jpg
umpx temp throttle.jpg [ 86.3 KiB | Viewed 330 times ]
PostPosted: Thu May 14, 2020 9:00 am 
User avatar

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
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: ...

Software Engineer @ Thimeo Audio Technology B.V.

Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 2 posts ] 

All times are UTC+02:00

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited