Here is my improved guide of the CPU cooling for the U-ITX, capable to reach ~103W TDP while remaining tolerable in terms of noise/thermals.
https://smallformfactor.net/forum/t...9800x3d-and-the-rtx-4080-fe.19941/post-292554
https://smallformfactor.net/forum/t...9800x3d-and-the-rtx-4080-fe.19941/post-292554
