Professor
Posts: 24
Joined: Fri May 22, 2015 2:16 pm

Re: RPi 3B+ Heat/CPU related improvements.

Mon Jul 09, 2018 5:50 am

I had a good time reading this thread. Forums are such forums.

I have the whole range of Pis from the original B to 3B+ and I can relate to thermal issues of 3B. I had to use it under heavy load with a copper heatsink and a fan to dissipate heat. After that implementation of cooling solution I managed to overclock 3B up to 1350 MHz and got 40 Celsius in idle but less than 80 under 100% load.

3B+ seems to address heat issues. It indeed gets hot in much spreaded manner - USB headers get hot as well. However I got overheating icon several times (with force_turbo on though). So, I just putted a copper heatsink and a fan. Now, as I'm writing this post, CPU load is about 15-20% and temperature is 38 Celsius which is very nice.

3B+ is a good incremental upgrade that address the most headache-inducing issue of 3B. But I still think 3B and 3B+ should have stock heatsinks as Odroid thingy does though.

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