Ale no tak, odpověděl jsem Vám..
Jakýkoliv Core 2 Quad, který je uveden i v support listě Vaší desky ( zde: http://www.asrock.com/mb/Intel/G41M-VS3/index.us.a sp?cat=CPU )

775 Core 2 Quad Q9650(E0) Yorkfield 3.0GHz 1333MHz 12MB All
775 Core 2 Quad Q9550(C1) Yorkfield 2.83GHz 1333MHz 12MB All
775 Core 2 Quad Q9550(E0) Yorkfield 2.83GHz 1333MHz 12MB All
775 Core 2 Quad Q9550(C0) Yorkfield 2.83GHz 1333MHz 12MB All
775 Core 2 Quad Q9505S(R0) Yorkfield 2.83GHz 1333MHz 6MB All
775 Core 2 Quad Q9505(R0) Yorkfield 2.83GHz 1333MHz 6MB All
775 Core 2 Quad Q9450(C1) Yorkfield 2.66GHz 1333MHz 12MB All
775 Core 2 Quad Q9450(C0) Yorkfield 2.66GHz 1333MHz 12MB All
775 Core 2 Quad Q9400(R0) Yorkfield 2.66GHz 1333MHz 6MB All
775 Core 2 Quad Q9300(M1) Yorkfield 2.50GHz 1333MHz 6MB All
775 Core 2 Quad Q9300(M0) Yorkfield 2.5GHz 1333MHz 6MB All
775 Core 2 Quad Q8400S(R0) Yorkfield 2.66GHz 1333MHz 4MB All
775 Core 2 Quad Q8400(R0) Yorkfield 2.66GHz 1333MHz 4MB All
775 Core 2 Quad Q8300(R0) Yorkfield 2.50GHz 1333MHz 4MB All
775 Core 2 Quad Q8200(R0) Yorkfield 2.33GHz 1333MHz 4MB All
775 Core 2 Quad Q8200(M1) Yorkfield 2.33GHz 1333MHz 4MB All
775 Core 2 Quad Q6700(G0) Kentsfield 2.66GHz 1066MHz 8MB All
775 Core 2 Quad Q6600(G0) Kentsfield 2.4GHz 1066MHz 8MB All
775 Core 2 Quad Q6600(B3) Kentsfield 2.40GHz 1066MHz 8MB All
775 Core 2 Quad Q6400(B3) Kentsfield 2.13GHz 1066MHz 8MB All