If I buy a PCI-E x16 2.0 video card can I put it into a pci-e x16 slot?

Will a 2.0 x16 video card work with a non 2.0 x16 slot? Thanks|||Yes, it will just work at reduced speeds. a 2.0 card will work in a 1.1 slot, and only at the maximum speed the slot supports.