Apple APLLE MACBOOK 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 computer’s hardware.

To use Apple Hardware Test:

1Disconnect all external devices from your computer except the power adapter. If you have an Ethernet cable connected, disconnect it.

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

3Restart your computer and hold down the D key as it starts up.

4When the Apple Hardware Test main screen appears, follow the onscreen instructions.

5If 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 doesn’t 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.

98

Chapter 5 Troubleshooting