Lenovo ThinkServer, User Manual

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System board LEDs
This topic helps you locate the LEDs on the system board.
The following illustration shows the BMC status LED, system board hardware fault LED, and the POST code
diagnostic LEDs on the system board.
Figure 30. System board LEDs
1
System board hardware fault LED
6
POST code diagnostic LED #1
2
BMC status LED
7
POST code diagnostic LED #6
3
POST code diagnostic LED #4
8
POST code diagnostic LED #2
4
POST code diagnostic LED #0 - Least Significant
Bit (LSB)
9
POST code diagnostic LED #7 - Most Significant Bit (MSB)
5
POST code diagnostic LED #5
10
POST code diagnostic LED #3
1
System board hardware fault LED
When this LED is lit, it indicates that the system board hardware has failed.
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ThinkServer User Guide