Computer Accessories User Manual

BIOS BIOS Post Codes
100 PENT/ATCA−717
Post Code Description
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 ROM’s
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)
C2 Initialize error logging
C3 Initialize error display function
C4 Initialize system error handler
C5 PnP dual CMOS (optional)
C6 Initialize notebook docking (optional)
C7 Initialize notebook docking late
C8 Motorola check (optional)
C9 Extended checksum (optional)
CA Redirect Int 15h to enable remote keyboard
CB Redirect Int 13 to Memory Technologies Devices such as ROM, RAM,
PCMCIA, and serial disk
CC Redirect Int 10h to enable remote serial video
CD Re−map I/O and memory for PCMCIA
CE
Initialize digitizer and dispaly messagea