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Any interest in a custom heat sink for CM3?

Posted: Tue Jun 26, 2018 12:50 pm
by douglas5962
I just wanted to see if there's any interest in the community for a custom heat sink for the CM3. I have experienced some thermal performance issues with the CM3 like others have reported and as a result my company is designing a custom heat sink. The more we can produce the lower the price we could offer them at.

Re: Any interest in a custom heat sink for CM3?

Posted: Tue Jun 26, 2018 5:24 pm
by John Westlake
We ended up using a fairly large heatsink (Small 14mm X 14mm heatsinks are pointless) which is attached by self adhesive tape, but I worry about the heatsink dropping off during shipping.

https://www.dropbox.com/s/x65v2nd71kpoe ... k.jpg?dl=0

We also used a thermal pad that transfers heat from the PCB to the heatsink, but I don't see much (if any) reduction in SoC Temps.

I do feel a proper heatsink solution is really required for the CM3 - ideally a CM3+ with the BCM2837B0 with heatspreader and custom heatsink.