Here's the specs on your board:http://www.asrock.com/mb/Intel/G31M-S/index.us.asp
The list on the right shows what CPU's you can use:http://en.wikipedia.org/wiki/LGA_775
The Graphics will plug in, but will not run to its full potential. MOBO= PCIE, GPU=PCIE 2.0
IMO you may want to look into a new motherboard for your upgrade.