Appendix C: Troubleshooting
Manual Number: 41209-004-1
Page C-1
Appendix C: Troubleshooting
Power-On Self Test
The AMIBIOS featured in the 586MBH Series provides all IBM standard Power-on Self Test (POST)
routines as well as enhanced AMIBIOS POST routines. AMIBIOS POST checkpoint codes are
accessible via the manufacturing Test Port (I/O) port 80h).
Post Phases
Every time the system is powered on, AMIBIOS executes two types of POST routines:
•
System Test and Initialization (test and initialize AMIBIOS for normal operations).
•
System Configuration Verification (Compare defined configuration with hardware actually
installed).
BIOS Error Reporting
If the error occurs before the display device is initialized a series of beeps sound. Beep codes
indicate that a fatal error has occurred. AMIBIOS beep codes are described on the next page.
If the error occurs after the display device is initialized the error message is displayed. A prompt to
press <F1> can also appear power is on.
Fatal errors, which halt the boot process, are communicated through a series of audible beeps.