EBC-C413/Power-on Self-Test (POST) Codes
v1.2
www.winsystems.com
Page 81
PostBDS Phase
The PostBDS phase 8-Bit POST code values are shown in the table below.
S3
The S3 phase 8-Bit POST code values are shown in the table below.
27
BDS_ENUMERATE_ALL_BOOT_OPTION
Get boot device information
28
BDS_END_OF_BOOT_SELECTION
End of boot selection
29
BDS_ENTER_SETUP
Enter Setup menu
2A
BDS_ENTER_BOOT_MANAGER
Enter Boot manager
2B
BDS_BOOT_DEVICE_SELECT
Try to boot system to OS
2C
BDS_EFI64_SHADOW_ALL_LEGACY_ROM Shadow Misc Option ROM
2D
BDS_ACPI_S3SAVE
Save S3 resume required data in RAM
2E
BDS_READY_TO_BOOT_EVENT
Last chipset initialization before boot to OS
2F
BDS_GO_LEGACY_BOOT
Start to boot Legacy OS
30
BDS_GO_UEFI_BOOT
Start to boot UEFI OS
31
BDS_LEGACY16_PREPARE_TO_BOOT
Prepare to Boot to Legacy OS
32
BDS_EXIT_BOOT_SERVICES
Send END of POST Message to ME via HECI
33
BDS_LEGACY_BOOT_EVENT
Last chipset initialization before boot to Legacy OS
34
BDS_ENTER_LEGACY_16_BOOT
Ready to Boot Legacy OS
35
BDS_RECOVERY_START_FLASH
Fast recovery start flash
36
BDS_START_SDHC_BUS
SDHC device initialization
37
BDS_CONNECT_ATA_LEGACY
ATA legacy device initialization
38
BDS_CONNEC_SD_LEGACY
SD legacy device initialization
Value
Functionality Name
Description
F9
POST_BDS_NO_BOOT_DEVICE
No Boot Device
FB
POST_BDS_START_IMAGE
UEFI Boot Start Image
FD
POST_BDS_ENTER_INT19
Legacy 16 boot entry
FE
POST_BDS_JUMP_BOOT_SECTOR
Try to Boot with INT 19
Value
Functionality Name
Description
C0
S3_RESTORE_MEMORY_CONTROLLER
Memory initialization for S3 resume
C1
S3_INSTALL_S3_MEMORY
Get S3 resume required data from memory
C2
S3_SWITCH_STACK
Start to use memory during S3 resume
C3
S3_MEMORY_CALLBACK
Set cache for physical memory during S3 resume
C4
S3_ENTER_S3_RESUME_PEIM
Start to restore system configuration
C5
S3_BEFORE_ACPI_BOOT_SCRIPT
Restore system configuration stage 1
C6
S3_BEFORE_RUNTIME_BOOT_SCRIPT
Restore system configuration stage 2
C7
S3_BEFORE_RELOCATE_SMM_BASE
Relocate SMM BASE during S3 resume
C8
S3_BEFORE_MP_INIT
Multi-processor initialization during S3 resume
C9
S3_BEFORE_RESTORE_ACPI_CALLBACK
Start to restore system configuration in SMM
CA
S3_AFTER_RESTORE_ACPI_CALLBACK
Restore system configuration in SMM complete
CB
S3_GO_TO_FACS_WAKING_VECTOR
Back to OS
Value
Functionality Name
Description