This article is the About the 5XXX/6XXX Tester Read Me file that comes with Mac OS 8.0.

This document describes the 5XXX/6XXX Tester application. This application checks Power Macintosh and Performa 5200, 5300, 6200, and 6300 series computers for hardware problems that may cause the computer to freeze. The tester only works on Power Macintosh and Performa 5200, 5300, 6200, and 6300 series computers.

IMPORTANT: The Power Macintosh or Performa 6360 does not have this hardware problem. If you have a Power Macintosh or Performa 6360, you do not need to use the tester program.

If you are experiencing problems with your computer other than system freezing, you should contact an Apple-authorized service provider to obtain a full diagnostic test.

How to use the tester application
To use the tester application, double-click its icon.

After the tester has checked your computer, you will see a message. If the message indicates that a problem has been found, contact an Apple-authorized service provider or Apple customer support to have your computer repaired. The necessary repairs are covered under a repair extension program.

Other References:

The following information was not in the original Mac OS 8 About 5xxx/6xxx Tester Read Me file.

The following Tech Info Library articles provide additional information on the 5xxx/6xxx Tester application.

• Macintosh 5xxx/6xxx Tester: Read Me , article # 19999
• 52xx/62xx Diagnostic Utility & 5xxx/6xxx Tester:Difference , Article #20061
• Macintosh Performa 5xxx/6xxx: Frequently Asked Questions , article #18928