Manualshelf

Technical Product Specification

ManualsBrandsIntel ManualsOtherIntel Server Board S2400EP4
61626364656667686970
Intel
®
Server System R1000EP Product Family TPS
Appendix B: POST Code Diagnostic LED Decoder
60 Intel Order Number G67599-003 Revision 2.0
In the following example, the BIOS sends a value of ACh to the diagnostic LED decoder. The
LEDs are decoded as follows:
Table 24. 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.