BIOS POST Codes (Continued)
TABLE H-45
POST Code
Description
Display external L2 cache size
6A
Load custom defaults (optional)
6B
Display shadow area message
6C
Display possible high address for UMB recovery
6E
Display error messages
70
Check for configuration errors
72
Check for keyboard errors
76
Set up hardware interrupt vectors
7C
Initialize Intelligent System Monitoring
7D
Initialize coprocessor if present
7E
Disable onboard super I/O ports and IRQs
80
Late POST device initialization
81
Detect and install external RS232 ports
82
Configure non-MCD IDE controllers
83
Detect and install external parallel ports
84
Initialize PC compatible PnP ISA devices
85
Reinitialize onboard I/O ports
86
Configure motherboard configurable devices (optional)
87
Initialize BIOS data area
88
Enable non-maskable interrupts (NMIs)
89
Initialize extended BIOS data area
8A
Test and initialize PS/2 mouse
8B
Initialize floppy controller
8C
Determine number of ATA drives (optional)
8F
Initialize hard disk controllers
90
Initialize local bus hard disk controllers
91
Jump to UserPatch2
92
Build MPTABLE for multi processor boards
93
Install CD ROM for boot
95
Clear huge ES segment register
96
Appendix H
Service Processor Commands
249
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