Appendix B

Power-on Diagnostics

Your computer’s built-in memory (ROM) contains a series of diagnostics programs, which your computer runs automatically every time you turn on the power. These programs check internal devices such as ROM, RAM, the timer, the keyboard controller, and the hard disk drive. If the computer finds an error, it displays a specific error number and error message on the screen.

If the error is serious, the computer cancels further checking and halts system initialization. The error message remains on the screen, and the computer locks up. If this happens, contact your dealer as soon as possible. Report both the error message and code number.

If the error is not serious, the computer 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 continue. Report the error message and code number to your dealer when requesting repairs.

The following table lists all the error codes and messages which may appear during power-on diagnostics checks.

Power-on Diagnostics

B-1