Apple MC413LL/A manual Using Apple Hardware Test, To use Apple Hardware Test

Using Apple Hardware Test

You can use Apple Hardware Test to help determine if there is a problem with your iMac computerÕs hardware.

To use Apple Hardware Test:

1Disconnect all external devices from your iMac except the keyboard and mouse. If you have an Ethernet cable connected, disconnect it.

2Insert the Mac OS X Install Disc 1 that came with your iMac.

3Restart your iMac and hold down the ÒDÓ key as it starts up.

4Select the language appropriate for your location when the Apple Hardware Test language chooser screen appears.

5Press the Return key or click the right arrow button.

6When the Apple Hardware Test main screen appears (after about 45 seconds), follow the onscreen instructions.

7If Apple Hardware Test detects a problem, it displays an error code. Make a note of the error code before pursuing support options. If Apple Hardware Test doesnÕt detect a hardware failure, the problem may be software-related.

For more information about Apple Hardware Test, see the Apple Hardware Test Read Me file on the Mac OS X Install Disc 1.

Chapter 5 Troubleshooting

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