4-32 Troubleshooting
0xB5 Fade out OEM Logo or post string
0xC5 End hotkey detection (Server BIOS)
0xBE If BCP option is enabled, clear the screen before booting.
0xB6 If password on boot is enabled, a call is made to Setup to
check password. If the user does not enter a valid
password, Setup does not return.
0xBC Clear parity-error latch
0xB7 Initialize ACPI BIOS.
0x9B Enable CPU management (Geyserville I)
0xBD Display Boot First menu if MultiBoot is installed and hotkey
pressed.
0xBF Check virus and backup reminders.
0x97 Create pointer to MP table in Extended BDA.
0x99 Check support status for Self-Monitoring Analysis
Reporting Technology (disk-failure warning).
0xB1 Unload ROM Pilot
0xDD Perform remote flash if requested
0xC7 If UCR redirection is installed, remove display manager
and unhookINT10
0XDF Shutdown the PXE UNDI code
0xB3 Store enhanced CMOS values in non-volatile area
0xE4 Last Legacy BIOS Task before hand off to UEFI/DXE
0xB9 Clear all screen graphics before booting.
0xC0 INT19 entry for legacy boot
Table 4-4. POST Codes
POST Code Function Phase Component
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