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Libre 3328 heatsink required?


jmandawg

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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.

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