X570-Plus & 5950X differ in their CPU and PCH lane configurations.
X570-Plus & 5950X differ in their CPU and PCH lane configurations.
You're noticing inconsistencies between the CPU pinout and the motherboard documentation. The Ryzen 9 5950X has a complex PCIe layout, while the motherboard lists four PCIe ports and two M.2 slots. It seems some connections might be coming from the chipset instead of directly from the CPU. I recommend checking official ASUS support pages or community forums for confirmation on which ports originate from the chipset versus the motherboard.
All the black ports and one M.2 (typically at the bottom) originate from PCH.