I don't think so guys. The 12" powerbook only has one open ram slot as far as I can tell. Here is what the tech specs say: 12-inch PowerBook G4 Processor and memory • 1.33GHz PowerPC G4 processor with Velocity Engine • 512K SRAM on-chip L2 cache • 167MHz system bus • 256MB of PC2700 (333MHz) DDR SDRAM; one open SO-DIMM slot; support for up to 1.25GB That would be 256 built in and one slot that takes up to 1 GB of RAM. Jim On 30-Sep-04, at 12:08 PM, Brian Olesky 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