System board LEDs
The following illustrations show the light emitting diodes (LEDs) on the system board.
Figure 1. System board and expansion board LEDs
|Descriptions and actions
|1 System error LED (yellow)
|LED on: An error has occurred. Complete the following steps:
|2 Identification LED (blue)
|This LED is used as a presence detection LED. You can use Lenovo XClarity Controller to light this LED remotely. Use this LED to locate the server among other servers visually.
|3 Light path power LED
|This LED indicates if there is sufficient power to lit the LEDs when light path button is pressed while the system is not connected to the power.
|4 XCC heartbeat LED (green)
|This LED indicates XCC heartbeat and boot process:
|5 FPGA heartbeat LED (green)
|This LED indicates power-on and power-off sequencing.
|6 7 11 14 Processor error LEDs
|LED on: An error has occurred to the processor the LED represents. See Processor problems for more information.
|8 10 12 13 15 DIMM error LEDs
|LED on: An error has occurred to the DIMM which the LED represents. See Memory problems for more information.
|9 Fan error LEDs
|LED on: An error has occurred to the fan the LED represents. See Fan problems for more information.