Chapter 4 86B1h Inform RomPilot about the end ofPOST.B2h POST done- prepare to boot operatingsystemB4h 1 One short beep before bootB5h Terminate QuietBoot (optional)B6h Check password (optional)B7h Initialize ACPI BIOSB9h Prepare BootBAh Initialize SMBIOSBBh Initialize PnP Option ROMsBCh Clear parity checkersBDh Display MultiBoot menuBEh Clear screen (optional)BFh Check virus and backup remindersC0h Try to boot with INT 19C1h Initialize POST Error Manager (PEM)C2h Initialize error loggingC3h Initialize error display functionC4h Initialize system error handlerC5h PnPnd dual CMOS (optional)C6h Initialize notebook docking (optional)C7h Initialize notebook docking lateC8h Force check (optional)C9h Extended checksum (optional)CAh Redirect Int 15h to enable remotekeyboardCBh Redirect Int 13h to MemoryTechnologies Devices such as ROM,RAM, PCMCIA, and serial disk.CCh Redirect Int 10h to enable remote serialvideoCDh Re-map I/O and memory for PCMCIACEh Initialize digitizer and display message.D2h Unknown interruptThe following are for boot block in Flash ROME0h Initialize the chipsetE1h Initialize the bridgeE2h Initialize the CPUE3h Initialize the system timerE4h Initialize system I/OE5h Check force recovery bootE6h Checksum BIOS ROME7h Go to BIOSE8h Set Huge SegmentCode Beeps POST Routine Description