Intel S2600CP S2600CP/P4000CP family Service Guide - Page 178
Table 11. POST Progress Code LED Example, Table 12. POST Progress Code Decoder
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Appendix C: LED Decoder The LEDs are decoded as follows: Table 11. POST Progress Code LED Example Upper Nibble AMBER LEDs Lower Nibble GREEN LEDs LEDs MSB LED #7 7 LED #6 6 LED #5 5 LED #4 4 LED #3 3 LED #2 2 LED #1 8h 4h 2h 1h 8h 4h 2h Status ON OFF ON OFF ON ON OFF Decode 1 0 1 0 1 1 0 Result Ah Ch The following table provides a list of all POST progress codes. Table 12. POST Progress Code Decoder Diagnostic LED Decoder 1 = LED On, 0 = LED Off Checkpoint Upper Nibble Lower Nibble MSB LSB 8h 4h 2h 1h 8h 4h 2h 1h LED # #7 #6 #5 #4 #3 #2 #1 #0 Description 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 63 PEI Phase continued... LSB LED #0 1h OFF 0 164 Intel® Server Board S2600CP Intel® Server System P4000CP Family Service Guide