Light path diagnostics LEDs
Use this information to diagnose possible errors that are indicated by the light path diagnostics LEDs.
The following illustration shows the LEDs on the light path diagnostics panel.
Figure 1. LEDs on the light path diagnostics panel
See Viewing the light path diagnostics LEDs for information about lighting up the LEDs.
Additional information about error conditions is in the CMM event log.
The following table describes the LEDs on the light path diagnostics panel.
| Lit light path diagnostics LED | Description |
|---|---|
| None | The compute node is not sufficiently charged to display the LEDs on the system board. |
| Light path | The power source for the light path diagnostics LEDs is charged. |
| System board | The system board has failed. |
| NMI | A nonmaskable interrupt has occurred, or the NMI button was pressed. |
| CPU mismatch | The processors are mismatched. |
| Temp | The system temperature has exceeded a threshold level. |
| Memory | A memory error has occurred. |
| Storage BP 1 and 2 | A drive backplane or its drives error has occurred. |
| M.2 | A M.2 drive error has occurred. |
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