Appendix E

Performing System Diagnostics

This appendix describes how to check the operation of the main unit and peripheral devices of your computer. You check these devices using the diagnostics program on your Reference diskette.

Run the diagnostics program if you are not sure whether a device is performing correctly. The table at the end of this appendix lists the error messages you may see during testing.

You can test the following devices, each of which is identified by specific reference numbers:

1 - System board

2- M e m o r y

3 - Keyboard

4- Monochrome display adapter and CRT

5- Color graphics adapter and CRT

6

-

Diskette drives and

controller

7

-

Math coprocessor

 

9

-

Parallel port (printer

interface)

11 - Serial port (RS-232C port)

12 - Alternate serial port

 

14

-

Dot-matrix printer

 

17 - Hard disk drives and controller

21 - Alternate parallel port

81 - Parallel port (on video adapter)

Performing System Diagnostics

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