I think the answer is no. If you look here: http://support.apple.com/kb/HT3082?viewlocale=en_US you can see the back panel openings are different. John --- On Wed, 4/8/09, Brian Deuel <briandeueldotcom at lavabit.com> wrote: > From: Brian Deuel <briandeueldotcom at lavabit.com> > Subject: [G4] Digital Audio board in Gigabit Ethernet case? > To: "A place to discuss Apple's G4 computers." <g4 at listserver.themacintoshguy.com> > Date: Wednesday, April 8, 2009, 1:25 PM > As per subject, is this possible? I'd like to upgrade to > a faster bus speed, as I've come across another Sonnet > 1.8ghz processor upgrade cheap, and would like the extra > 33mhz bus speed to go with it. Do the rear ports/slots line > up? Would the power supply work as well? > > Thanks for any advice offered. > > Brian > > _______________________________________________ > G4 mailing list > G4 at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/g4