HP Kayak xu700 Technical Reference Manual page 110

6 Tests and Error Messages
Order in Which POST Tests Are Performed
Checkpoint
Code
A2h Check key lock
A4h Initialize typematic rate
A8h Erase F2 prompt
AAh Scan for F2 key stroke
ACh Enter SETUP
AEh Clear Boot flag
B0h Check for errors
B2h POST done - prepare to boot operating system
B5H Terminate QuietBoot (optional)
B6h Check password (optional)
B7h ACPI tables initialized
B8h Clear global descriptor table
B9h Prepare Boot
BAh Initialize DMI parameters
BBh Initialize PnP Option ROMs
BCh Clear parity checkers
BDh Display MultiBoot menu
BEh Clear screen (optional)
BFh Check virus and backup reminders
C0h Try to boot with INT 19
C1h Initialize POST Error Manager (PEM)
C2h Initialize error logging
C3h Initialize error display function
C4h Initialize system error handling
C5h PnPnd dual CMOS (optional)
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POST Routine Description
MaxiLife LCD
Beep
Display
Codes
Message
BIOS SETUP
...Checking...
Check Password
ACPI Init.
Prepare Boot...
DMI Tables Init.
PNP Opt. ROM Init