Starting with the PowerBook G4 (17-inch), the Apple Hardware Test software will be incorporated into the Software Install and Restore DVD. There is no separate CD for this diagnostic.
Note: Currently, these DVD images are not posted on Service Source online.
Previously, the C key was held down to boot into the diagnostics. With the combined DVD, this action will boot into the software restore section of the disk. In order to access the AHT on the DVD follow these steps:
Apple Service Diagnostic (ASD)
Since the PowerBook G4 (15-inch FW800) is a Mac OS X only system, MacTest Pro software does not work on this computer. As a replacement, Apple System Diagnostic will be delivered to service providers and can be downloaded from Knowledge Base article 112125: Service Diagnostics Matrix.
Important: ASD is not backward compatible with PowerBook computers prior to the PowerBook G4 (1GHz/867MHz).
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