Technical Product Specification

Intel® Server Board S1400SP TPS Appendix C: POST Code Diagnostic LED Decoder
Revision 2.1 Intel order number G64248-003
135
Table 62. POST Progress Code LED Example
LEDs
Upper Nibble AMBER LEDs Lower Nibble GREEN LEDs
MSB LSB
LED #7 LED #6 LED #5 LED #4 LED #3 LED #2 LED #1 LED #0
8h 4h 2h 1h 8h 4h 2h 1h
Status
ON OFF ON OFF ON ON OFF OFF
Results
1 0 1 0 1 1 0 0
Ah Ch
Upper nibble bits = 1010b = Ah; Lower nibble bits = 1100b = Ch; the two are concatenated as
Ach.
The following table provides a list of all POST progress codes.
Table 63. POST Progress Codes
Checkpoint
Diagnostic LED Decoder
Description
1 = LED On, 0 = LED Off
Upper Nibble Lower Nibble
MSB LSB
8h 4h 2h 1h 8h 4h 2h 1h
LED # #7 #6 #5 #4 #3 #2 #1 #0
SEC Phase
01h
0 0 0 0 0 0 0 1 First POST code after CPU reset
02h
0 0 0 0 0 0 1 0 Microcode load begin
03h
0 0 0 0 0 0 1 1 CRAM initialization begin
04h
0 0 0 0 0 1 0 0 Pei Cache When Disabled
05h
0 0 0 0 0 1 0 1 SEC Core At Power On Begin.
06h
0 0 0 0 0 1 1 0 Early CPU initialization during Sec Phase.
07h
0 0 0 0 0 1 1 1 Early SB initialization during Sec Phase.
08h
0 0 0 0 1 0 0 0 Early NB initialization during Sec Phase.
09h
0 0 0 0 1 0 0 1 End Of Sec Phase.
0Eh
0 0 0 0 1 1 1 0 Microcode Not Found.
0Fh
0 0 0 0 1 1 1 1 Microcode Not Loaded.
PEI Phase
10h
0 0 0 1 0 0 0 0 PEI Core
11h
0 0 0 1 0 0 0 1 CPU PEIM
15h
0 0 0 1 0 1 0 1 NB PEIM
19h
0 0 0 1 1 0 0 1 SB PEIM
MRC Process Codes – MRC Progress Code Sequence is executed - See Table 64
PEI Phase continued…
31h
0 0 1 1 0 0 0 1 Memory Installed
32h
0 0 1 1 0 0 1 0 CPU PEIM (CPU Init)
33h
0 0 1 1 0 0 1 1 CPU PEIM (Cache Init)
34h
0 0 1 1 0 1 0 0 CPU PEIM (BSP Select)
35h
0 0 1 1 0 1 0 1 CPU PEIM (AP Init)
36h
0 0 1 1 0 1 1 0 CPU PEIM (CPU SMM Init)
4Fh
0 1 0 0 1 1 1 1 Dxe IPL started
DXE Phase
60h
0 1 1 0 0 0 0 0 DXE Core started
61h
0 1 1 0 0 0 0 1 DXE NVRAM Init
62h
0 1 1 0 0 0 1 0 SB RUN Init
63h
0 1 1 0 0 0 1 1 Dxe CPU Init
68h
0 1 1 0 1 0 0 0 DXE PCI Host Bridge Init
69h
0 1 1 0 1 0 0 1 DXE NB Init
6Ah
0 1 1 0 1 0 1 0 DXE NB SMM Init
70h
0 1 1 1 0 0 0 0 DXE SB Init
71h
0 1 1 1 0 0 0 1 DXE SB SMM Init
72h
0 1 1 1 0 0 1 0 DXE SB devices Init