NanoPi Duo overheating with kernels > 6.1.x

[sgjava]

I built the latest Nobel build and ended up with Armbian-unofficial_26.02.0-trunk_Nanopiduo_noble_current_6.12.63.img. Even at idle it runs 70C. If you try to do upgrades it will do thermal shutdown. The temp reporting is real because it's hot enough to burn your finger if you hold the heat sink long enough. I used a PS2 usb fan (I call it the ghetto cooler 5000) long enough to downgrade kernel to 6.1.x. Now it idles around 50C. I know there's been heating issues with H3 (Duo uses H2+). I compared DTBs, voltages and cannot find the smoking gun. I played around controlling the voltages, etc. Anyways, I'm OK with 6.1.x kernel since this board was out in 2017. I still have a few I want to use for projects. I guess as long as I can use a current Ubuntu distro I'm OK.