Datasheet

Appendix A: POST Code LED Decoder Intel® Server Board S5500WB TPS
Revision 1.9
Intel order number E53971-008
94
Fixed Media
0xB0h
1
0
1
1
0
0
0
0
Resetting fixed media device
0xB1h
1
0
1
1
0
0
0
1
Disabling fixed media device
0xB2h
1
0
1
1
0
0
1
0
Detecting presence of a fixed media device (SATA hard drive
detection, and so forth)
0xB3h
1
0
1
1
0
0
1
1
Enabling / configuring a fixed media device
0xB4h
1
0
1
1
0
1
0
0
Reserved for fixed media
Removable Media
0xB8h
1
0
1
1
1
0
0
0
Resetting removable media device
0xB9h
1
0
1
1
1
0
0
1
Disabling removable media device
0xBAh
1
0
1
1
1
0
1
0
Detecting presence of a removable media device (SATA CDROM
detection, and so forth)
0xBCh
1
0
1
1
1
1
0
0
Enabling / configuring a removable media device
0xBDh
1
0
1
1
1
1
0
1
Reserved for removable media device
Boot Device Selection (BDS)
0xD0
1
1
0
1
0
0
0
0
Entered the Boot Device Selection phase (BDS)
0xD1
1
1
0
1
0
0
0
1
Return to last good boot device
0xD2
1
1
0
1
0
0
1
0
Setup boot device selection policy
0xD3
1
1
0
1
0
0
1
1
Connect boot device controller
0xD4
1
1
0
1
0
1
0
0
Attempt flash update boot mode
0xD5
1
1
0
1
0
1
0
1
Transfer control to EFI boot
0xD6
1
1
0
1
0
1
1
0
Trying to boot device selection
0xDF
1
1
0
1
1
1
1
1
Reserved for boot device selection
Pre-EFI Initialization (PEI) Core
0xE0h
1
1
1
0
0
0
0
0
Entered Pre-EFI Initialization phase (PEI)
0xE1h
1
1
1
0
0
0
0
1
Started dispatching early initialization modules (PEIM)
0xE2h
1
1
1
0
0
0
1
0
Initial memory found, configured, and installed correctly
0xE3h
1
1
1
0
0
0
1
1
Transfer control to the DXE Core
PEI Modules
0xF0h
1
1
1
1
0
0
0
0
Install PEIM for Platform Status Codes
0xF1h
1
1
1
1
0
0
0
1
Detecting Platform Type
0xF2h
1
1
1
1
0
0
1
0
Early Platform Initialization
0xF3h
1
1
1
1
0
0
1
1
PEI Modules initialized
Driver eXecution Environment (DXE) Core
0xE4h
1
1
1
0
0
1
0
0
Entered EFI driver execution phase (DXE)
0xE5h
1
1
1
0
0
1
0
1
Started dispatching drivers
0xE6h
1
1
1
0
0
1
1
0
Started connecting drivers
DXE Drivers
0xE7h
1
1
1
0
1
1
0
1
Waiting for user input
0xE8h
1
1
1
0
1
0
0
0
Checking password
0xE9h
1
1
1
0
1
0
0
1
Entering BIOS setup
0xEAh
1
1
1
0
1
1
0
0
Flash Update
0xEBh
1
1
1
0
1
1
0
1
Legacy Option ROM initialization
0xECh
1
1
1
0
1
0
0
0
DXE Drivers initialized
0xEDh
1
1
1
0
1
0
0
1
Transfer control to Boot Device Selection (BDS)
0xEEh
1
1
1
0
1
1
0
0
Calling Int 19. One beep unless silent boot is enabled.
0xEFh
1
1
1
0
1
1
0
1
Unrecoverable boot failure