Can i use a ddr2 graphics card on a ddr3 motherboard? it will affect the system? ? i have an old system from 2009 (my first pc) with intel pentium g870 , 4gb ram ddr3 , 500gb , ati radeon x300/x550/x1050 running windows 7 .. i want to upgrade my graphics card to a nvidia geforece 8600GT 512mb ddr2 .... i want to play games like league of legends , cs:go , fortnite .... thank you for the help