System board LEDs
The illustration in this section shows the LEDs on the system board.
Figure 1. System board LEDs
| Callout | Callout |
|---|---|
| 1 System error LED | 2 System ID LED |
| 3 DIMM error LEDs | 4 BMC heartbeat LED |
1 System error LED
When this yellow LED is lit, one or more LEDs elsewhere in the server might also be lit to direct you to the source of the error. For more information, see Front I/O module.
2 System ID LED
The blue system ID LED helps you to visually locate the server. A system ID LED is also located on the front of the server. Each time you press the system ID button, the state of both the system ID LEDs changes. The LEDs can be changed to on, blinking, or off.
3 DIMM error LEDs
When a DIMM error LED is lit, it indicates that the corresponding memory module has failed.
4 BMC heartbeat LED
The BMC heartbeat LED helps you identify the BMC status.
| Status | Color | Description |
|---|---|---|
| On | Green | The BMC is not alive. |
| Blinking | Green | The BMC is alive. |
| Off | None | The BMC is not alive. |
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