Baby Screamer LC Motherboard User's Guide
2 3
2 3
Chapter 3
Chapter 3
BIOS Power-On Self Test (
BIOS Power-On Self Test ( POST)
POST)
The AMIBIOS provides all IBM standard POST routines, as well as enhanced AMIBIOS POST routines. AMIBIOS POST supports CPU
internal diagnostics. AMIBIOS POST codes are accessible via the Manufacturing Test Port (I/O Port 80h).
P O S T P h a s e s
P O S T P h a s e s
When the system is powered on, the AMIBIOS executes two types of routines:
•
System Test and Initialization
(test and initialize motherboards for normal operations) and
•
System Configuration Verification
(compare defined configuration with hardware actually installed).
B I O S E r r o r R e p o r t i n g
B I O S E r r o r R e p o r t i n g
Errors are reported in one of two ways:
If...
Then...
the error occurs before
the display device is
initialized,
a series of beeps will sound. Beep
codes indicate that a fatal error has
occurred. The AMIBIOS Beep Codes are
described on the next page.
the error occurs after
the display device is
initialized,
an error message is displayed.
Displayed BIOS error messages are
explained on page 25. A prompt to press
<F1> can also appear with displayed
errors.
