Can I use a 1x PCIe slot?

This video explains everything you need to know about PCIe slots, including PCIe slot Old

#1 I have a Z690A WiFi mobo with a 12900K Intel i9, and am seeing conflicting information about whether PCI_E4

pcie 4 in pcie 3 slot According to PCIE Expresscard , a x1 card can be inserted into the x4, x8, and x16 connectors 15 This is referred to as up

pciex16 slot configuration I recently got an LSI 2308, and have not had a chance to test it yet My motherboard only has one PCIE x16 slot ,