No, there are two ram slots in the powerbook, whereas on the iBooks you have one chip built-in and one ram slot to work with. On your book, you can put 1 GB RAM chips in as well, a bit expensive, but their prices are dropping a bit lately. > From: Brian Olesky <brian4 at sbcglobal.net> > >> On 9/30/04 11:00 AM, "rob morris" <rob.morris at earthlink.net> wrote: >> >> The 256 chip on the bottom is not "built-in" rather it is removable too. You >> can add another 512 there...or did I misunderstand you comment? :) >> You have two ram slots. RAM is not built onto the board at all in these >> books. >> > Aha, that's good to know. Guess it's not like my old iBook, where one chip > was "built in." So right now I've invested about $60 in upgrading one of the > 250's to 512. I guess it'll cost me another $60 to do it again. Since I > dislike the thought of having to buy two 512 chips just get an extra 256 > from each, I may wait since I've only had the PB for a few weeks, and see > how well it does on 768. > > Brian Yep, there are two ram slots in the powerbook, whereas on the iBooks you have one chip built-in and one ram slot to work with. On your book, you can put 1 GB RAM chips in as well, a bit expensive, but their prices are dropping a bit lately.