Acer ASPIRE 4253 Service Manual page 148

Table 4-6. (Continued)BDS Phase POST Code Table
Functionality Name (Include\
PostCode.h)
BDS_START_IDE_CONTROLLER
BDS_START_SATA_CONTROLLER
BDS_START_ISA_ACPI_CONTROLLER
BDS_START_ISA_BUS
BDS_START_ISA_FDD
BDS_START_ISA_SEIRAL
BDS_START_IDE_BUS
BDS_START_AHCI_BUS
BDS_CONNECT_LEGACY_ROM
BDS_ENUMERATE_ALL_BOOT_OPTION
BDS_END_OF_BOOT_SELECTION
BDS_ENTER_SETUP
BDS_ENTER_BOOT_MANAGER
BDS_BOOT_DEVICE_SELECT
BDS_EFI64_SHADOW_ALL_LEGACY_RO M
BDS_ACPI_S3SAVE
BDS_READY_TO_BOOT_EVENT
BDS_GO_LEGACY_BOOT
BDS_GO_UEFI_BOOT
BDS_LEGACY16_PREPARE_TO_BOOT
BDS_EXIT_BOOT_SERVICES*
BDS_LEGACY_BOOT_EVENT
BDS_ENTER_LEGACY_16_BOOT
BDS_RECOVERY_START_FLASH
* 3rd party relate functions – Platform dependence.
4-20
Post
Phase
Code
BDS 1E IDE controller initialization
BDS 1F SATA controller initialization
BDS 20 SIO controller initialization
BDS 21 ISA BUS driver initialization
BDS 22 Floppy device initialization
BDS 23 Serial device initialization
BDS 24 IDE device initialization
BDS 25 AHCI device initialization
BDS 26 Dispatch option ROMs
BDS 27 Get boot device information
BDS 28 End of boot selection
BDS 29 Enter Setup Menu
BDS 2A Enter Boot manager
BDS 2B Try to boot system to OS
BDS 2C Shadow Misc Option ROM
BDS 2D Save S3 resume required data
in RAM
BDS 2E Last Chipset initial before boot
to OS
BDS 2F Start to boot Legacy OS
BDS 30 Start to boot UEFI OS
BDS 31 Prepare to Boot to Legacy OS
BDS 32 Send END of POST Message
to ME via HECI
BDS 33 Last Chipset initial before boot
to Legacy OS.
BDS 34 Ready to Boot Legacy OS.
BDS 35 Fast Recovery Start Flash.
Description
Troubleshooting