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Appendix C: POST Code Diagnostic LED Decoder IntelP®P Server Board S3420GP TPS
Diagnostic LED Decoder
O = On, X=Off
Upper Nibble Lower Nibble
MSB LSB
Checkpoint
8h 4h 2h 1h 8h 4h 2h 1h
LED #7 #6 #5 #4 #3 #2 #1 #0
Description
Pre-EFI Initialization Module (PEIM) / Recovery
0x30h X X O O X X X X
Crisis recovery has been initiated because of a user request
0x31h X X O O X X X O
Crisis recovery has been initiated by software (corrupt flash)
0x34h X X O O X O X X
Loading crisis recovery capsule
0x35h X X O O X O X O
Handing off control to the crisis recovery capsule
0x3Fh X X O O O O O O Crisis recovery capsule failed integrity check of capsule descriptors
Runtime Phase / EFI Operating System Boot
0XF2h O O O O X X O X Signal that the OS has switched to virtual memory mode
0XF4h
O O O O
X O X X
Entering the sleep state
0XF5h
O O O O
X O X O
Exiting the sleep state
0XF8h O O O O O X X X
Operating system has requested EFI to close boot services has been
cancelled.
Progress Code
0XF9h O X X O X X X X
Resetting the keyboard
0xFAh O X X O X X X O
Disabling the keyboard
Revision 1.0
Intel order number E65697-003
112