To answer an earlier question, no it will not. Only a pcie 1.0 card will work on a pcie 1.0 mobo, nvidia is backwards compatible to pcie 1.1, amd is compatible back to pcie 2.3 only. You'll need an older card for 1.1-2.2 mobo's.
Define gaming. Where's the line, the cutoff? Do you define a gamer just because they have to have a pc thats capable of better than console graphics? My mother-in-law thinks of herself as a gamer of sorts, she plays solitaire, hearts, mah-jong, candy-crush etc. Last I knew, those were games too and certainly do not require a $150+ gpu.