Apple MB535LL User Guide - Page 63
Using Apple Hardware Test
UPC - 885909235803
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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: 1 Disconnect all external devices from your computer except the keyboard and mouse. If you have an Ethernet cable connected, disconnect it. 2 Insert the Mac OS X Install Disc 1 that came with your computer. 3 Restart your computer and hold down the D key as it starts up. A list of available startup volumes appears. 4 Click Apple Hardware Test and click the right arrow. 5 Follow the onscreen instructions when the Apple Hardware Test main screen appears (after about 45 seconds). 6 If 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 does not 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 4 Troubleshooting 63