BIOS POST Progress Codes
The following table provides a list of all POST progress codes.
Diagnostic LED Decoder
1 = LED On, 0 = LED Off
Checkpoint
Upper Nibble
MSB
8h
4h
2h
LED #
#7
#6
#5
01h
0
0
02h
0
0
03h
0
0
04h
0
0
05h
0
0
06h
0
0
07h
0
0
08h
0
0
09h
0
0
0Eh
0
0
0Fh
0
0
10h
0
0
11h
0
0
15h
0
0
19h
0
0
MRC Process Codes – MRC Progress Code Sequence is executed - See Table 56. MRC Progress Codes
31h
0
0
32h
0
0
33h
0
0
34h
0
0
35h
0
0
36h
0
0
4Fh
0
1
60h
0
1
61h
0
1
62h
0
1
63h
0
1
68h
0
1
69h
0
1
6Ah
0
1
70h
0
1
71h
0
1
Revision 1.3
Relion 1900e/2900e Manual
Table 63. POST Progress Codes
Lower Nibble
LSB
1h
8h
4h
2h
1h
#4
#3
#2
#1
#0
0
0
0
0
0
1
0
0
0
0
1
0
0
0
0
0
1
1
0
0
0
1
0
0
0
0
0
1
0
1
0
0
0
1
1
0
0
0
0
1
1
1
0
0
1
0
0
0
0
0
1
0
0
1
0
0
1
1
1
0
0
0
1
1
1
1
0
1
0
0
0
0
0
1
0
0
0
1
0
1
0
1
0
1
0
1
1
0
0
1
PEI Phase continued...
1
1
0
0
0
1
1
1
0
0
1
0
1
1
0
0
1
1
1
1
0
1
0
0
1
1
0
1
0
1
1
1
0
1
1
0
0
0
1
1
1
1
1
0
0
0
0
0
1
0
0
0
0
1
1
0
0
0
1
0
1
0
0
0
1
1
1
0
1
0
0
0
1
0
1
0
0
1
1
0
1
0
1
0
1
1
0
0
0
0
1
1
0
0
0
1
Description
SEC Phase
First POST code after CPU reset
Microcode load begin
CRAM initialization begin
PEI Cache When Disabled
SEC Core At Power On Begin.
Early CPU initialization during Sec Phase.
Early SB initialization during Sec Phase.
Early NB initialization during Sec Phase.
End Of SEC Phase.
Microcode Not Found.
Microcode Not Loaded.
PEI Phase
PEI Core
CPU PEIM
NB PEIM
SB PEIM
Memory Installed
CPU PEIM (CPU Init)
CPU PEIM (Cache Init)
CPU PEIM (BSP Select)
CPU PEIM (AP Init)
CPU PEIM (CPU SMM Init)
DXE IPL started
DXE Phase
DXE Core started
DXE NVRAM Init
SB RUN Init
DXE CPU Init
DXE PCI Host Bridge Init
DXE NB Init
DXE NB SMM Init
DXE SB Init
DXE SB SMM Init
138
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