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Appendix B BIOS POST Codes
B-5
98 Search for option ROMs
99 Check for SMART drive (optional)
9A Shadow option ROMs
9C Set up power management
9D Initialize security engine (optional)
9E Enable hardware interrupts
9F Determine number of ATA and SCSI drives
A0 Set time of day
A2 Check key lock
A4 Initialize typematic rate
A8 Erase F2 prompt
AA Scan for F2 key stroke
AC Enter setup
AE Clear boot flag
B0 Check for errors
B1 Inform RomPilot about the end of POST
B2 POST done - prepare to boot operating system
B4 One short beep
B5 Terminate QuietBoot (optional)
B6 Check password
B7 Initialize ACPI BIOS
B9 Prepare boot
BA Initialize DMI parameters
BB Initialize PnP option ROMs
BC Clear parity checkers
BD Display multiboot menu
BE Clear screen
BF Check virus and backup reminders
C0 Try to boot with interrupt 19
C1 Initialize POST Error Manager (PEM)
TABLE B-1
BIOS POST Codes
(Continued)
Post Code Description