BIOS POST Codes
B-3
POST Code
Description
70h
Display error messages
72h
Check for con
fi
guration errors
76h
Check for keyboard errors
7Ch
Set up hardware interrupt vectors
7Dh
Initialize Intelligent System Monitoring (optional)
7Eh
Initialize coprocessor if present
80h
Disable onboard Super I/O ports and IRQs (optional)
81h
Late POST device initialization
82h
Detect and install external RS232 ports
83h
Con
fi
gure non-MCD IDE controllers
84h
Detect and install external parallel ports
85h
Initialize PC-compatible PnP ISA devices
86h
Re-initialize onboard I/O ports.
87h
Con
fi
gure Motherboard Con
fi
gurable Devices (optional)
88h
Initialize BIOS Data Area
89h
Enable Non-Maskable Interrupts (NMIs)
8Ah
Initialize Extended BIOS Data Area
8Bh
Test and initialize PS/2 mouse
8Ch
Initialize
fl
oppy controller
8Fh
Determine number of ATA drives (optional)
90h
Initialize hard-disk controllers
91h
Initialize local-bus hard-disk controllers
92h
Jump to UserPatch2
93h
Build MPTABLE for multi-processor boards
95h
Install CD ROM for boot
96h
Clear huge ES segment register
97h
Fix up Multi Processor table
98h
1-2 Search for option ROMs and shadow if successful. One long,
two short beeps on checksum failure
99h
Check for SMART Drive (optional)
9Ch
Set up Power Management
9Dh
Initialize security engine (optional)
9Eh
Enable hardware interrupts
9Fh
Determine number of ATA and SCSI drives
A0h
Set time of day
A2h
Check key lock
A4h
Initialize typematic rate
A8h
Erase <ESC> prompt
AAh
Scan for <ESC> key stroke
ACh
Enter
SETUP
AEh
Clear
Boot
fl
ag
B0h
Check for errors
B1h
Inform RomPilot about the end of POST (optional)
B2h
POST done - prepare to boot operating system
B4h
1 One short beep before boot
B5h
Terminate QuietBoot (optional)
Содержание Novascale R422
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