So i have an old laptop. It's a Compaq CQ43 and it's equiped with Intel Pentium B940 on G2 socket. Question is, can i upgrade my latop to core i5 2520m because it's using the same socket with my motherboard. And if it can, will it caused any Problem to my laptop, power consumption maybe, my battery will drain a lot faster maybe, or any other problem. Please answer my question and sorry for my bad english