56 Intel® Server Board S3420GP User Guide
Boot Device Selection (BDS)
0xD0 O OXO XXXXTrying boot selection
0xD1 O OXO XXXOTrying boot selection
0xD2 O O X O X X O X Trying boot selection
0xD3 O O X O X X O O Trying boot selection
0xD4 O O X O X O X X Trying boot selection
0xD5 O O X O X O X O Trying boot selectiont
0xD6 O O X O X O O X Trying boot selection
0xD7 O OXO XOOOTrying boot selection
0xD8 O OXO OXXXTrying boot selection
0xD9 O O X O O X X O Trying boot selection
0xDA O O X O O X O X Trying boot selection
0xDB O O X O O X O O Trying boot selection
0xDC O O X O O O X X Trying boot selection
0xDD O O X O O O X O Trying boot selection
0xDE O OXO OOOXTrying boot selection
0xDF O OXO OOOOTrying boot selection
Pre-EFI Initialization (PEI) Core
0xE0 O OOX OXXXStarted dispatching early
initialization modules
(PEIM)
0xE1 O OOX XXXOReserved for initialization
module ues (PEIM)
0xE2 O O O X X X O X Initial memory found,
configured, and installed
correctly
0xE3 O O O X X X O O Reserved for initialization
module ues (PEIM)
Driver Execution Environment (DXE) Core (not accompanied by a beep code)
0xE4 O OOX OXXXEntered EFI driver
execution phase (DXE)
0xE5 O O O X O X X O Started dispatching
drivers
0xE6 O O O X O X O X Started connecting drivers
DXE Drivers (not accompanied by a beep code)
Table 7. Diagnostic LED POST Code Decoder