I’m wondering if anyone else has seen a similar problem. I haven’t called Apple about it because I’m worried that the answer will be to re-install everything. Not keen on doing that again.
Here is the situation.
I have a 2016 MacBook Pro 15” with the 2.9GHz CPU. Recently (on Mojave and now still on Catalina) when I’m not doing much at all. No apps running taking up CPU cycles, my fans will spin up to max. When I look at iStat it shows the CPU running at 3.4Ghz continuously. I also have kernal_task running at around 140% of CPU (I assume this is to keep the CPU cool, but I guess something could be running). The fans keep running to keep the CPU below 100 degrees, but the frequency doesn’t go down.
If I reboot things will settle down, but eventually the CPU will peg again. This could take a day or two.
This machine did get a new Logic board a few months ago but things seemed fine until a few weeks ago because of a bad SSD. I thought it might be a issues with the paste on the CPU causing it the heat up but since it can take a while for it to occur I don’t think that’s the answer.
Has anyone heard of this happening? I’ve done the Google thing and nothing some up that seems to fit my issue.