
Appendix B: POST Code Diagnostic LED Decoder Intel® Server System SR1600UR TPS
Intel order number E45725-010 Revision 1.8
0xD5
X O X O
Trying to boot device selection 5
0xD6
X O O X Trying to boot device selection 6
Trying to boot device selection 7
0xD8
O X X X Trying to boot device selection 8
0xD9
O X X O Trying to boot device selection 9
0xDA
O X O X Trying to boot device selection A
0xDB
O X O O Trying to boot device selection B
0xDC
O O X X Trying to boot device selection C
0xDD
O O X O Trying to boot device selection D
0xDE
O O O X Trying to boot device selection E
Trying to boot device selection F
Pre-EFI Initialization (PEI) Core
Started dispatching early initialization modules (PEIM)
Reserved for initialization module use (PEIM)
Initial memory found, configured, and installed correctly
Reserved for initialization module use (PEIM)
Driver eXecution Environment (DXE) Core
(not accompanied by a beep code)
Entered EFI driver execution phase (DXE)
Started dispatching drivers
Started connecting drivers
Calling Int 19. One beep unless silent boot is enabled.
Unrecoverable boot failure
Runtime Phase/EFI Operating System Boot
Signal that the OS has switched to virtual memory mode
0xF4h O O O O X O X X Entering Sleep state
0xF5h O O O O X O X O Exiting Sleep state
0xF8h O O O O O X X X
OS has requested EFI to close boot services (ExitBootServices ( )
Has been called)
0xF9h O O O O O X X O
OS has switched to virtual address mode (SetVirtualAddressMap ( )
Has been called)
0xFAh O O O O O X O X
OS has requested the system to reset (ResetSystem ( ) has been
called)
Pre-EFI Initialization Module (PEIM)/Recovery
Crisis recovery has been initiated because of a user request
Crisis recovery has been initiated by software (corrupt flash)
Loading crisis recovery capsule
Handing off control to the crisis recovery capsule
0x3Fh X X O O O O O O
Unable to complete crisis recovery capsule
Appendix C: POST Code Errors
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