Running Apple Hardware Test on MacBook Air
Running Apple Hardware Test On MacBook Air
- Disconnect all devices connected to your computer externally.
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Press and hold down the D key and restart your computer.
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When the Apple Hardware Test chooser screen comes up, select your preferred language.
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Click on the right arrow button or hit the Enter key.
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When the main screen of the Apple Hardware Test appears, follow the instructions shown.
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When the test runs and it detects a problem, it displays the error code. Note down the code before contacting Apple support. If the test does not detect an issue related to hardware, it may be a software related issue.
If the above method does not work, use another computer (Mac or PC) and Remote Install OS X (a remote installer for MacBook Air laptops) to run the test. Make sure that the other computer has Remote Install OS X installed.
Running Apple Hardware Test From A Remote Computer:
Insert the OS X CD/DVD into the optical drive of the other computer. The Apple Hardware Test is on the Mac OS X Setup Disc 1 (Mac OS X 10.5.4) or Install Disc 2 (Mac OS X 10.5.5)
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If the other computer is a Mac then run Remote Install Mac OS X from the Utilities folder. If it is Windows, select “Remote Install Mac OS X” when the Install Assistant appears.
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Read the onscreen introduction, press and hold down the Option button on your keyboard while you click on the Continue button.
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When the Apple Hardware Test chooser screen shows, select your preferred language.
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Hit the Return button on your keyboard or click the right arrow button.
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When the main screen of the Apple Hardware Test appears, follow the instructions shown.
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When the test runs and it detects a problem, it displays an error code. Note down the code before contacting Apple support. If the test does not detect an issue related to hardware, it may be a software related issue.
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On the other computer, exit Remote Install Mac OS X by clicking on Quit.
Instructions for running the Apple Hardware Test on a Mac and PowerPC-based Mac can be found here. Instructions for running the test in Loop mode are also contained in the same page.