Intel S3420GPLC - Server Board Motherboard

Intel® Server Board S3420GP TPS Appendix C: POST Code Diagnostic LED Decoder
Revision 2.4
Intel order number E65697-010
121
Checkpoint
Diagnostic LED Decoder
Description
O = On, X=Off
Upper Nibble Lower Nibble
MSB LSB
8h 4h 2h 1h 8h 4h 2h 1h
LED #7 #6 #5 #4 #3 #2 #1 #0
0x78h X O O O O X X X Resetting the console controller
0x79h X O O O O X X O Disabling the console controller
0x7Ah X O O O O X O X Enabling the console controller
Keyboard (only USB)
0x90h O X X O X X X X Resetting the keyboard
0x91h O X X O X X X O Disabling the keyboard
0x92h O X X O X X O X Detecting the presence of the keyboard
0x93h O X X O X X O O Enabling the keyboard
0x94h O X X O X O X X Clearing keyboard input buffer
0x95h O X X O X O X O Reserved for keyboard
Mouse (only USB)
0x98h O X X O X X O X
Resetting the mouse
0x99h O X X O X X O O
Detecting the mouse
0x9Ah O X X O X O O X
Detecting the presence of mouse
0x9Bh O X X O X O O O
Enabling the mouse
Fixed Media
0xB0h O X O O X X X X
Resetting fixed media device
0xB1h O X O O X X X O
Disabling fixed media device
0xB2h O X O O X X O X
Detecting presence of a fixed media device (SATA hard drive detection,
etc.)
0xB3h O X O O X X O O
Enabling/configuring a fixed media device
Removable Media
0xB8h O X O O O X X X Resetting removable media device
0xB9h O X O O O X X O Disabling removable media device
0xBAh O X O O O X O X
Detecting presence of a removable media device (SATA CDROM
detection, etc.)
0xBCh O X O O O O X X Enabling/configuring a removable media device
Boot Device Selection (BDS)
0xD0 O O X O X X X X Entered the Boot Device Selection phase (BDS)
0xD1 O O X O X X X O Return to last good boot device
0xD2 O O X O X X O X Setup boot device selection policy
0xD3 O O X O X X O O Connect boot device controller
0xD4 O O X O X O X X Attempt flash update boot mode
0xD5 O O X O X O X O Transfer control to EFI boot
0xD6 O O X O X O O X Trying to boot device selection
0xDF O O X O O O O O Reserved for boot device selection
Pre-EFI Initialization (PEI) Core
0xE0h O O O X X X X X Entered Pre-EFI Initialization phase (PEI)
0xE1h O O O X X X X O Started dispatching early initialization modules (PEIM)
0xE2h O O O X X X O X Initial memory found, configured, and installed correctly
0xE3h O O O X X X O O Transfer control to the DXE Core
Driver eXecution Environment (DXE) Core
0xE4h O O O X X O X X
Entered EFI driver execution phase (DXE)
0xE5h O O O X X O X O
Started dispatching drivers