Apple Service Diagnostic 2.5.8

Shared by: RT
On: 2022-01-09 15:26:52
Updated by: RT
On: 2022-01-09 15:29:36
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  • Thermal Calibration 

What is Apple Service Diagnostic 2.5.8?

Apple Service Diagnostic CD is designed to run both Open Firmware and Mac OS X tests from a single CD. Apple Service Diagnostic (OF) performs low-level tests of hardware directly and does not require an operating system to run. Apple Service Diagnostic (OS) uses Mac OS X to perform tests.

Booting and using the Apple Service Diagnostic Dual Boot-able CD

With the CD inserted restart the machine and hold down the C key as the computer starts up. After 20-30 seconds the computer will boot to the main screen of Apple Service Diagnostic for Open Firmware testing. Apple Service Diagnostic Open Firmware testing does not require an operating system to run. After running Diagnostic (OF) press the Restart button to restart the Mac. Press and hold down the 'option' key while booting to get to system picker. Once system picker has finished scanning for other bootable volumes, select Diagnostic (OS) and press the right arrow key. After 3-4 minutes the computer will boot to the main screen of Apple Service Diagnostic for Mac OS X testing. Once finished press the Shutdown or Restart button to quit.

Before using Apple Service Diagnostic disconnect any Ethernet network and USB cables.

What's Changed

Thermal calibration is no longer limiting the conditions when it can be run. User can now run thermal calibration at any time.

Download Apple Service Diagnostic 2.5.8 for Mac

(208.84 MiB / 218.98 MB)
Apple Service Diagnostic version 2.5.8 / DMG image
110 / 2022-01-09 / 444dbb324aa84ea844f38606c99a549a620856ad / ASD 2.5.8 / /



Compatibility notes

Apple Service Diagnostic is distributed to Apple Service Providers only for use with PowerBook G4 (17-inch 1.5GHz), PowerBook G4 (17-inch 1.67GHz), PowerBook G4 (15-inch 1.5/1.33GHz), PowerBook G4 (15-inch 1.67/1.5GHz), PowerBook G4 (12-inch 1.33GHz), PowerBook G4 (12-inch 1.5GHz), iBook G4 (Early 2004), iBook G4 (14-inch Early 2004), eMac (USB 2.0), Power Mac G5, Power Mac G5 (June 2004 Series), Power Mac G5 (Late 2004), Power Mac G5 (Early 2005), iMac G5, iBook G4 (12-inch Late 2004), iBook G4 (14-inch Late 2004), Mac mini, and iMac G5 w/ALS (Ambient Light Sensor).

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