Remove All Heatsinks and Metal Questions

I've read this recently, and wonder how far it goes.
Photo One shows metal around the CPU socket, a heatsink to it's left(I think what's referred to as the northbridge) and two other heatsinks towards the top, which appear to be well attached


This shows the metal around a CPU socket which, it seems, would tear off the socket to remove




And in this one what to do? There is metal around the PS/2 connectors, the Serial and Video connectors, the USB and Ethernet connectors, and the Sound connectors