Can I install a pcie x1 card in full size pcie slot?

Help with PCIE Slot Standard Measurements ardForum pcie slot size Generally speaking, there are five physical sizes of PCIe cards: x1, x4, x8, x16, and x32 (FYI, PCIe x32 does exist with a maximum of 32 lanes, pcie m2 slot Looks like most recent ATX motherboards have a dramatically reduced number of PCIe slots

pciex4 slot *When using a PCIe x16 add-on card, the length of the card must not exceed 167mm or inches Automated Inspection Machine Application