I've got Dell Inspiron B130 laptop. It has Intel Celeron M 370 90 nm Dothan, 400 FSB. I would like to stick in there fastest processor I could get. Help me out with new CPU selection, because I have no clue which CPU to buy. List of Celeron M processors. List of Pentium M processors. Here, a guy replaced his Celeron M with Pentium M, but there is a problem, look at Core Speed. Related Q #1: Will 65 nm processors work? Related Q #2: If I get 533 FSB memory, will a processor that support 533 FSB run at that speed? Please advice me on these 3 questions.