PCIe and PCIe - Difference between x8 and x16

Would connecting a PCIe GPU to a PCIe port affect pcie 4 card in pcie 3 slot 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 slot cover 5 Place that in PCIe slot 4 which is a PCIe generation 3 slot with x8 electrical lanes The card is PCIe3 x4 Note that the

pcie 3 slot Like USB, PCIe is forward compatible This means that a device which requires PCIe will work in a PCIe or PCIe slot Slot Size Lane Width