I don't know the answer to that question, but Larry tells me the DPs on the older machines provide the most benefit when running more than one app at a time. That sounds like primary and secondary, to me. Suggest you ask him directly any questions you may have about performance on your machine. On Mar 21, 2005, at 9:46 AM, Carlos wrote: > Wayne: > > Thanks for the quick reply. Just checked out the DP upgrades on OWC's > site. For $400 minimum, I'll probably pass, but if prices ar dropping, > it might become a viable option. Does OS X take full advantage of > these DP upgrades in the older machines? IE, is it fully symmetrical, > or is there still a "primary" and "secondary" CPU? > > On Mar 21, 2005, at 12:09 AM, Wayne Clodfelter wrote: > >> Yes, Larry O'Connor at OWC--macsales.com--says faster, less expensive >> DPs are just around the corner. Check the macsales.com site for >> current >> offerings. >> >> On Mar 20, 2005, at 11:06 AM, Carlos wrote: >> >>> I recently acquired a second-hand Sawtooth G4/450 and I'm wondering >>> if >>> it's possible to upgrade this with a second processor? it's running >>> OS >>> X exclusively, so the DP would provide a significant boost, I would >>> think. >> > > > > -- > > Charles Estabrooks > Photography & Creative Digital Services > www.estabrooks.org > > 181 Main Street - Westerly, RI 02891 > tel 401.596.3745 fax 510.544.7759 > > _______________________________________________ > G4 mailing list > G4 at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/g4 > > Listmom is trying to clean out his closets! Vintage Mac and random > stuff: > http://search.ebay.com/_W0QQsassZmacguy1984 > > Regards, Wayne Clodfelter wayne at troutnc.com