HP Vectra XE310 Technical Reference Manual page 36

BIOS Overview
36 product description
Checkpoint
Code
AAh Scan for F2 key stroke
ACh Enter SETUP
AEh Clear IN POST flag
B0h Check for errors
B2h POST done - prepare to boot operating system
B5H Terminate QuietBoot
B6h Check password (optional)
B8h Clear global descriptor table
B9h Clean up all graphics
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
POST Routine Description