Hardware Troubleshooting Tools and Tips Apple Hardware Test AHT

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:

  1. Insert the DVD named "PowerBook G4 15-inch and 17-inch Software Install and Restore" that came with your computer.
  2. Hold down the Option key and restart the computer.
  3. Click Apple Hardware Test volume in the startup manager.
  1. Click the arrow that points to the right.
  2. Follow the on-screen instructions.

Note: Apple Hardware Test 2.0.1 and later is not backwards compatible with PowerBook computers prior to the PowerBook G4 (1Ghz/867Mhz).

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).

Diagnostic Tools Used Apple
Apple Service Diagnostic Main screen
Apple Service Diagnostic
Apple Service Diagnostic Select test tab
Apple Hardware Test
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