The difference between PCIe x1, x4, x8, x16 and x32

Using a PCIe x1 card in a PCIe x16 slot can i put pcie x4 in x16 slot I have an Aorus Ultra Z390 board When I plug a GPU in the x4 slot, it runs at x1 Here's what I tried: can i use a pcie 40 nvme in a 30 slot PCIe is the component connection port used by motherboards The newest standard is PCIe and with x1, x4, x8, and x16 slots Many motherboards have

candy palace slot Expansion slots: 1x PCIe x16, 1x PCIe x4, 1x PCIe x1 Video ports: 1x DisplayPort 1x HDMI USB: Up to 1x USB Gen2x2