PCIe x16 switching to x8 even if no 2nd GPU connected?

PCIe x16 switching to x8 even if no 2nd GPU connected? pci e x16 slot PCIe boards can fit into slots designed for their lane configuration or higher Plugging a x4 PCIe into a x16 slot is acceptable pcie slot function PCIe x16: The largest slots on the motherboard, these slots are used for cards that require a high bandwidth like GPUs By far, the most popular

pcie slot function 2 SSD, Support PCIe x4 x8 x16 Slot USB Type C ·

pcie 2 slot PCI Express x16 slots Most computers and motherboards have a single PCIe x16 slot However, many recent highperformance systems feature two PCI Express x16 When attached to a motherboard's PCIe x16 slot, a card such as the GeForce RTX 4080 can draw up to 75W from the + and +12V rails