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Appendix C
Power-on Diagnostics
The built-in memory (ROM) of your computer contains a series of diag-
nostics programs. These programs are run automatically by the system every
time you turn on the power. The diagnostics programs check the internal
devices such as ROM, RAM, keyboard controller, timer, video controller,
floppy disk driver, and hard disk controller.
When you turn on the power, your system performs the tests described
in this appendix. If an error is found, a specific error number and error
message display. If the error is serious, the computer cancels further checking
and halts system initialization. The error message remains on the screen but
the computer is inoperable.
If the error is not serious, the computer displays an error message and
waits for you to resume further checking. You see this prompt:
(Resume = “F1” key)
Write down the error message and code number, and then press F1 to
resume. Report the error message and code number to your dealer when
requesting repairs.
When the self test finds a problem, the system checks all the hardware.
This check may take about one minute; during this time, you see only the
power light on the computer. After checking the hardware, the diagnostics
continue.
System Device Check
The computer first checks its internal devices such as the ROM. If a
malfunction is found, the computer displays an error message. In some cases,
it may halt with no further information. If this happens, contact your dealer
as soon as possible.
If a fault in the main board is found, a number from 101 to 108 and an
error message display. This message is in the following format:
10x-System board error
Diagnostics
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