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LED #
Upper Nibble
Checkpoint
Lower Nibble
S3 Resume
Upper Nibble
40h
Lower Nibble
Upper Nibble
41h
Lower Nibble
Upper Nibble
42h
Lower Nibble
Upper Nibble
43h
Lower Nibble
BIOS Recovery
Upper Nibble
46h
Lower Nibble
Upper Nibble
47h
Lower Nibble
Upper Nibble
48h
Lower Nibble
Upper Nibble
49h
Lower Nibble
Upper Nibble
4Ah
Lower Nibble
POST Memory Initialization MRC Diagnostic Codes
There are two types of POST Diagnostic Codes displayed by the MRC during memory initialization; Progress
Codes and Fatal Error Codes.
The MRC Progress Codes are displays to the Diagnostic LEDs that show the execution point in the MRC
operational path at each step.
Intel® Server System R1000SPO Product Family TPS
Diagnostic LED Decoder
LED 3
LED 2
LED 1
8h (MSB)
4h
2h
8h (MSB)
4h
2h
off
ON
off
off
off
off
off
ON
off
off
off
off
off
ON
off
off
off
ON
off
ON
off
off
off
ON
off
ON
off
off
ON
ON
off
ON
off
off
ON
ON
off
ON
off
ON
off
off
off
ON
off
ON
off
off
off
ON
off
ON
off
ON
LED 0
1h (LSB)
Description
1h (LSB)
off
S3 Resume PEIM (S3 started)
off
off
S3 Resume PEIM (S3 boot script)
ON
off
S3 Resume PEIM (S3 Video Repost)
off
off
S3 Resume PEIM (S3 OS wake)
ON
off
PEIM which detected forced Recovery condition
off
off
PEIM which detected User Recovery condition
ON
off
Recovery PEIM (Recovery started)
off
off
Recovery PEIM (Capsule found)
ON
off
Recovery PEIM (Capsule loaded)
off
68
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