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Appendix E
Advanced ROM Diagnostics
Introduction
In addition to the POST diagnostics which are performed
during power-up, the ROM BIOS also has an advanced
diagnostics program which can perform specialized tests on
each of the following when instructed:
Hard disk drive(s)
l
Floppy diskette drive(s)
l
Keyboard
l
Video adapter board and monitor
l
Printer and communication ports
l
This section contains descriptions of operation for all the tests
available through this program located in the ROM BIOS.
Included here also are possible error messages.
When to Run Advanced Diagnostics
Advanced ROM Diagnostics can be run whenever a device or
controller malfunction is suspected. These tests are especially
useful when floppy diskette-based diagnostics are either
unavailable or unusable because the floppy disk drive or floppy
controller appear to be malfunctioning.
Advanced ROM Diagnostics
E-1
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