NEC Express5800/320Ma User Manual page 73

AA
Scan for F2 keystroke.
AC
Enter SETUP.
AE
Clear the boot flag.
B0
Check for errors.
B1
Inform ROM pilot that POST has ended.
B2
POST done: prepare to boot the operating system.
B3
Store enhanced CMOS.
B4
Issue one short beep before booting the operating system.
B5
Terminate quiet boot.
B6
Check the password.
B7
Initialize the Advanced Configuration and Power Interface (ACPI) BIOS.
B8
Initialize the system.
B9
Prepare the boot.
BA
Initialize the Desktop Management Interface (DMI) parameters.
POST and Online Diagnostic Codes
POST Codes
A-11