EPX-C414/Architectural Diagnostic Codes
v1.0
www.winsystems.com
Page 78
Appendix D. Architectural Diagnostic Codes
Architectural Diagnostic diagnostic codes describe important events in the BIOS
initialization sequence.
Table 33:
Architectural Diagnostic Codes
Code
Symbol
Description
F0
SEC_ENTRY
SEC phase entry (reset vector)
F1
SEC_EXIT
SEC phase exit
F2
PEI_ENTRY
PEI phase entry (PEI dispatch)
F3
PEI_EXIT
PEI phase exit
F4
IPL_DXE
DXE IPL normal boot path
F5
IPL_S3
DXE IPL S3 boot path to OS
F6
S3_OS
S3 boot to OS
F7
IPL_RECOVERY
DXE IPL crisis recovery boot path
F8
IPL_EXIT
Exiting DXE IPL, starting DXE phase
F9
DXE_ENTRY
DXE dispatch start
FA
DXE_EXIT
DXE dispatch exit
FB
PEI_MEMORY
No permanent memory found in PEI phase
FC
PEI_IPL
No DXE IPL found in PEI phase
FD
IPL_DXE
No DXE found in IPL
FE
IPL_PPI
Missing PPIs needed by DXE
FF
DXE_ARCH
Missing architectural protocols at the end of DXE