Chapter 4
Performing System DiagnosticsThis chapter describes how to check the operation of the main unit and peripheral devices of your system. You check these devices using System diagnostics, option 4 on the OPERATION MENU.
Always run diagnostics after adding or removing optional devices, or if you are unsure whether a device is performing correctly. You should also run these tests after moving your computer from one place to another, and after you replace the internal battery.
Note: To run System diagnostics, boot your system with the reference diskette in drive A. Then select option 4 from the OPERATION MENU. If you start this program in any other way, some tests may produce strange results.
You can test these devices; the program identifies each one with a specific reference number:
1 - System
2 - Memory
3 - Keyboard
4 - Monochrome display adapter and CRT
5 - Color graphics adapter and CRT
6 - Floppy disk drives and controller
7 - Math coprocessor (80287)
9 - Parallel port (printer interface)
11- Serial port
12- Alternate serial port
14 -
17 - Hard disk drives and controller
21 - Alternate parallel port
81 - Parallel port (on video adapter)
Appendix A lists the error messages that may occur when testing these devices.
Diagnostics |