So I had this old laptop laying around and I decided to upgrade it from a Celeron M 520 to a Core Duo T2250. It seemed like it would work because it had the same FSB and socket. I changed it and tried turning it on but only the power indicator would light up and the optical drive would make sounds. So i thought that the CPU was toast, put the celeron back on and the same problem appears now. Could have I burned the mobo?