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LEDs on the system board

The following illustrations show the light-emitting diodes (LEDs) on the system board.

Figure 1. LEDs on the system board
LEDs on the system board

1 FPGA error LED (red)

2 System power LED (green)

3 Catterr LED (red)

4 FPGA heartbeat LED (green)

Descriptions of LEDs on the system board​

1 FPGA error LED (red)

DescriptionThe FPGA error LED indicates the working status of FPGA.

  • Blinking (1Hz): A power fault error happens.

  • Off: No FPGA errors happen.

ActionIf the FPGA error LED is lit, contact Lenovo Support.

2 System power LED (green)

DescriptionThe system power LED indicates the working status of the system.

  • Fast blinking (about four flashes per second): Power fault or is waiting for BMC power permission ready.

  • Slow blinking (about one flash per second): Power off and is ready to be powered on (standby state).

  • On: Power on.

Action

  • If the system power LED is blinking fast over 5 minutes and cannot power on, check the BMC heartbeat LED. For more information, see LEDs and buttons on Datacenter Secure Control Module (DC-SCM).

  • If the system power LED remains off or is blinking fast (about four flashes per second) and the system error LED on the front panel is on (yellow), the system is in a power fault status. Do the following:

    1. Re-plug the power cord.

    2. Remove installed adapters/devices, one at a time, until you reach the minimal configuration for debugging.

    3. (Trained technicians only) If the problem remains, capture FFDC log, and replace the system board.

    4. If the problem still remains, contact Lenovo Support.

3 Catterr LED (red)

DescriptionThe Catterr LED helps you identify if there are major errors happening within the system.

  • On (red): One or more major errors happen.

  • Off: No major errors happen.

Action

If the Catterr LED is always on, do the following:

  1. Replace the system board.

  2. If the problem remains, contact Lenovo Support.

4 FPGA heartbeat LED (green)

DescriptionThe FPGA heartbeat LED helps you identify the FPGA status.

  • Blinking (about one flash per second): FPGA is working normally.

  • On or off: FPGA is not working.

Action

If FPGA heartbeat LED is always off or always on, do the following:

  1. Replace the system board.

  2. If the problem remains, contact Lenovo Support.