Hi,

 

   I am setting up a Clearfog base as the backend for my music player. As a high-end audio device it would be a clear advantage if all processing could be passively cooled.

 

  Running Armbian_5.27_Clearfogbase_Ubuntu_xenial_default_4.4.70 the default heatsink gets very hot to the touch and feels much hotter than the reported 49 degrees.

 

Does anyone know if there are any differences between the available kernel and armbian versions regarding temperature?

Does anyone know of any inaccuracies in the temperature reporting for the ARMADA 38x?

What could be regarded as a safe (reported) operating temperature for the ARMADA 38x?

Does anyone know of alternative heatsinks that might be made to fit the Clearfog base with minimal modification?

 

  BR.

 

Marius

 

10 minutes ago, Learnincurve said:

Does anyone know of any inaccuracies in the temperature reporting for the ARMADA 38x?

 

What Armbian does when you login depends on this here: https://github.com/armbian/build/blob/master/scripts/update-motd.d/30-sysinfo#L42-L45

 

So you see that Armbian outputs 30°C less than the kernel reports. I don't know why but Igor implemented it this way when he started with this motd stuff so I had no chance other than keeping this when overworking 30-sysinfo some time ago (since we really don't need another 'after Armbian upgrade my board runs way hotter' drama). Maybe Igor can comment...

IIRC it's a leftover from first kernel, which had wrong readings. I'll check and adjust values ... 

I attached temp meter to heat sink and can't get higher readings than 49°C, Clearfog is not in a box and ambient temp is around 22°C. Adjusted:

https://github.com/armbian/build/commit/e5579a0957fd7b394d3b418671b4f0f82b334be9

Thank you Tkaiser and Igor.

 

  Excellent news that we will be able to rely on the readings.

 

BR.

 

--Marius--

 

34 minutes ago, Learnincurve said:

we will be able to rely on the readings

 

Hmm... if your heatsink feels really hot you can be assured that the stuff below runs even hotter. Please keep also in mind discussion of Helios4 and @zador.blood.stained's remarks wrt active cooling: https://forum.armbian.com/index.php?/topic/3045-support-of-helios4-intro/&do=findComment&comment=21192