Appendix C: Troubleshooting
Manual Number: 41209-003-2
Page C-1
Appendix C: Troubleshooting
Power-On Self Test
The AMIBIOS featured in the 586MBHP provides all IBM standard Power-On Self Test (POST)
routines as well as enhanced AMIBIOS POST routines. AMIBIOS POST supports CPU internal
diagnostics. 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 ot 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.
Summary of Contents for 586MBHP Series
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