On 5/9/07 9:50 PM, "cyril blanc" <blanc.cyril at wanadoo.fr> wrote: > Is it possible to install Tiger on a Mac 8100 AV In a word, no. Your Mac has a 601 processor. No one has ever succeeded in getting a 601 PPC to boot any version of OS X. Even if you upgraded it with an accelerator and newer processor, I doubt you would find it possible. In a world of $50 Blue & White G3 Macs, there is not much point, either. The maximum official System for the 8100 is MacOS 9.1. For information on running OS X on Macs that are too old to run it, go to http://eshop.macsales.com/OSXCenter/XPostFacto