PowerBook G4/400 and 500 MHz, slow graphics.Digital Audio Power Mac G4, including one dual 533 MHz model.Executive Summary Unsupported Macs that Can Run Leopard The bad news is that some third-party additions to the System can prevent Leopard from booting – Unsanity’s Application Enhancer (APE) tops the list of add-ons – so you should make sure all of your software is up-to-date and may want to (or need to) disable System add-ons before installing Leopard. UPDATE: The folks at iCode have taken the information from this article and used it to create LeopardAssist, a free program that automates this process and eliminates the need to fiddle with OpenFirware on your own. For those who don’t, it’s possible to hack the installer so it will run on slower Macs or to fake out the Leopard installer using Open Firmware (a huge thanks to Dylan McDermond for sharing this technique). The most common one thus far requires that you have a supported Mac. There are two ways of getting around installer limitations. We’re getting more field reports of successful “unsupported” installations all the time, and most (but not all) features of Leopard seem to work on older, slower G4 Macs. The good news is that there are ways to get around the installer. That includes the dual 800 MHz Power Mac G4 as well as Digital Audio and other G4 Power Macs that have been upgraded with processors past the 867 MHz mark. The bad news is that the Leopard installer refuses to let you install it on any Mac slower than 867 MHz. The good news is that Mac OS X 10.5 Leopard seems to be able to run on any Mac with AGP graphics built around a G4 processor – and even on the 2000 Pismo PowerBook (the first PowerBook with AGP graphics) as long as it has a G4 upgrade.

Does macbook g4 work without