Diagnostic Diskette

WARNING: This manual is intended to test the IBM Personal Computer Type 2274 machine type only.Testing devices which are not included with the original product package, including other IBM products, prototype cards, or modifying hardware settings may give false errors and invalid system responses. The diagnostics not specifically made for this model may also report incorrect errors and information.

The diagnostics program comes on a diskette along with this book. This version of PC-Doctor diagnostics program, developed by Watergate for IBM, is the primary method of testing the computer. You can use it to test the IBM components of the system and some external devices. The amount of time required to test components depends on the number of components installed and selected. The more devices you have attached to your system and selected in PC-Doctor, the longer the testing will take.

Using the Diagnostic Diskette

1.Power-off the system unit.

2.Insert diagnostic diskette in drive A.

3.Power-on the system unit.

NOTE: Do not press F1 during POST. If any POST errors appear after POST, make a note of the errors.

4.DOS should load. During boot, verify that each driver loads successfully. For drivers that do not load successfully, verify that the device driver is associated with it and is installed properly.

5.Diagnostics program (PC-Doctor) will load, then follow the screen instructions to operate.

Diagnostic Aids 81

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IBM 2274 manual Using the Diagnostic Diskette