Looking at this, and the screws themselves, I can’t figure out how to attach the stock X4 cooler to the CPU after attaching the PoE hat. There’s no way to screw it on. I don’t want to start dismantling the screws that are already on the hat until I know what I’m supposed to be doing.
The different material is a copper stud. The updated stud specification is M2.5*9+3.
If you install the stud into Heatsink and no thread is exposed, it means it is updated.