Can the Power Macintosh G5 run MacOS 9/Classic applications?
None of the Power Macintosh G5 models are capable of booting MacOS 9, but all can run MacOS 9 applications with the MacOS X “Classic Environment”. Apple provides no support for the “Classic Environment” on Macs released after the Power Macintosh G5 series. If you need a system capable of running MacOS 9 applications or booting MacOS 9, please check out site sponsor OHS, which specializes in refurbished, and often heavily upgraded, systems capable of booting in both MacOS X and MacOS 9. Site sponsor PowerMax also sells systems capable of running MacOS 9/Classic. For more on MacOS 9, please refer to the MacOS 9/Classic Support Q&A.