PCIe Lane Width: x8 showing

Pci Express X8 Slot - Computer And Office pcie 8x slot In the case of the OP's MOBO, the blue PCI-e slot on the top is assigned x16 The two little slots under it are x1 each The black slot is x4, pcie gen 4 in gen 3 slot The PCIEX16 slot operates at up to x8 mode when a device is installed in the M2C_CPU connector * For optimum performance, if only one PCI

pcie 4 gpu in pcie 3 slot The MB manual says that the x8 slot shares bandwidth with the x16 slot Meaning, if I use the x8 slot, the x16 slot will operate in x8 mode