On 6/1/2007 5:54 AM, "marla mitchnick" <mitchnickpictures at yahoo.com> wrote: > Thanks for your reply, Peter, but I did a google > search and it did not lead to a clear answer of which > upgrade my particular machine needs. Do you happen to > recall either the upgrade or else at least the model > NAME of the G4 dual 450? Marla there is a beaut little programme called MacTracker which lists detailed tech specs, and has notes on things like model names etc It is free, and works like a charm for every Mac ever made, You find it at: http://www.mactracker.ca Using your model number you will be able to determine when your machine was manufactured and all it's original details. Tony http://www.tonyjohansen.com A Life Of Art