im looking to upgrade my cpu in my laptop, it has a t5600, was told i can go up to t7600 its the fastest m socket?? i found some online but it says socket 478? whats the deal is that what i want or not. i hear "m" from one person but cant find a single one. also is it plug and play, the computer was available originally with this processor so is there anything special or just plug it in and run with it? wifes dad has ms and phd in elec. engineering so hes gonna put it in so im not worried about that part just what i need to look for when i buy, and what to do when its in. thanks in advance