Hi! I have a friend that has a Sony Vaio desktop pcv-rx570. It has a 1.8 p4 in it. I have a 2.4 p4 I was wanting to put in it but I am not sure if it is possible. The intel 2.4 p4 model number is SL7YP. I also learned that the sony's motheboard has a 400 fsb and the2.4 p4 cpu has a 533 fsb. My questions are...is it possible to put the 2.4 p4 into the sony...and also, would it make much of a difference? I appreciate any help you can give me...and thanks in advance!!!