The MacTest Pro (MTP) family of software-based diagnostic programs is made up of two applications: MacTest Pro and MTP Emergency, both of which run only on Mac OS 9. If your test Mac can't boot into Mac OS 9, use Apple Service Diagnostic (discussed next) instead of MacTest Pro.
MacTest Pro is a modular, customizable diagnostic program that can help you identify problems with a Mac and its peripherals. The availability of individual test modules allows customization of testing for a wide variety of environments. Apple distributes MacTest Pro on a bootable CD, and in most cases you will want to run it from that CD. This approach enables you to run tests using known-good system software.
MacTest Pro allows looping for extended testing ...