Important: The Power Macintosh or Performa 6360 does not have this hardware issue. If you have a Power Macintosh or Performa 6360, you do not need to use the tester program.
If you are experiencing issues 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 an issue has been found, contact an Apple Authorized Service Provider or Apple CustomerSupport 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.