Hi all.  Is heatsink required for the libre 3328?

 

When I log in to armbiam temp says 60 but it is in red text.  

31 minutes ago, jmandawg said:

3328

Yes, its recommended.

Yes, otherwise any activity at all will cause it to throttle performance to avoid damage.

Thanks, got one off amazon, it dropped the temps by more than 10 degrees.

I ordered the native heat sink and haven't had any overheat issues at all but then I ordered the native case with fan from LoveRPi.com.

 

That said, I had to run the fan at 3.3 v, which is sufficient.  If I attempted to run the fan at 5V, it will stop the system from booting.

As Igor notes, the power (current = V/Z) coming in from micro USB is quite limited.

 

I could use external power for the fan.  Maybe an external piggybacked barrel-jack power supply for the GPIO connected devices and fan,

possibly supplying microUSB power as well, is indicated.

 

I thought I had a DOA system for a while, until I tried booting without the fan.

 

I like the native case with fan and wish I had ordered several of them, not just for the Libre board but for other Pi's as well, because the

fan mounts to the case, not to the heat sink.