I was commented more on the prior post. And I apologize, I don't write things well.
I tried the DietPi version for the Nanopi m4v2 and the fan would kick in, yet with the Armbian version at similar temperature ranges it never did. I'm looking into that but I'm no expert by any means, just a curios person. lol
There is a fan that comes with the metal case that also includes the nvme hat. The fan is plugged into a connector on the nvme hat. It's a 12 volt fan and it doesn't seem to have a variable speed, it just shuts on and off with bursts of some activities. But it seems odd then when the system is basically idle except for the default background stuff it still gets pretty warm. I guess that's part of my question is why besides the additional heat of the nvme being powered and why the fan doesn't activate on Armbian 20.08.9 Focal Server with 5.8.13-rockchip64 kernel aarch64.