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Award POST Codes
Code
Name
83
Write CMOS
84
Display PNP
85
USB Final Init
86
Reserved
87
Reserved
88
Reserved
89
Setup ACPI tables
8A
Reserved
8B
Option ROM Detect
8C
Reserved
8D
Enable Parity Check
8E
Reserved
8F
IRQ12 Enable
90
Reserved
91
Reserved
92
Reserved
93
Boot Medium Read
94
Final Init
95
NumLock
96
Boot Attempt
C0
Base CPU test
C1
Memory Presence
C2
Early Memory
C3
Extend Memory
C4
Special Display
C5
Early Shadow
C6
Cache presence
CF
CMOS Check
B0
Spurious
B1
Unclaimed NMI
Description
Write all CMOS values back to RAM and clear screen.
Display PNP devices
Final USB initialization
Setup ACPI tables
Scan for Option ROMs
Enable Parity Check
Enable IRQ12 if mouse present
Detect and store boot partition head and cylinders
values in RAM
Final init for last micro details before boot
Set NumLock status according to Setup
Set low stack Boot via INT 19h.
Read/Write CPU registers
Base memory detect
Board Initialization
Turn on extended memory, cache initialization
First display initialization
Early shadow enable for fast boot
External cache size detection
CMOS checkup
If interrupt occurs in protected mode.
If unmasked NMI occurs, display Press F1 to disable
NMI, F2 reboot.
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