Mobile New HD for the PB March 12, 2008 dharder 08 03 12 2220 PIC-0177.jpg, originally uploaded by dharder9475. I finally got the nerve to swap out the hard drive in my laptop from a 4200 rpm 80gb to a 7200 rpm 100gb which lately I’ve been running as a external. With new software and Leopard it runs much faster. Yay! 16 screws tho.