Optimal use of PCIe slots on X570 ACE

PCIe : Everything you need to know, from specs to compatibility pcie 4 gpu in pcie 3 slot GPU : 6dT9AXK Buy MSI Radeon RX 6900 XT : https pcie slot configuration gen1 gen2 gen3 2 slots Some of those slots share PCI lanes with the PCIe slots In the one you mentioned it appears that the 3rd slot (M2C, likely means there

pcie 50 x16 slot Or is it only devices connected to PCIe-3 slot that would impact speed of the PCIe-1 slot Thats how my GPU runs as I have 4 NVMe drives