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Upper processor board (CPU BD) LEDs

The following illustrations show the light-emitting diodes (LEDs) on the upper processor board (CPU BD).

Press the power button to light the LEDs on the upper processor board (CPU BD) when the power source has been removed from the server.

Figure 1. Upper processor board (CPU BD) LEDs
Upper processor board (CPU BD) LEDs
Table 1. Upper processor board (CPU BD) LEDs
LEDDescription and actions

1 FPGA heartbeat LED (Green)

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

  • On or off: FPGA is not working.

    1. Replace the lower processor board (MB).

    2. If the problem remains, contact Lenovo Support.

2 P5V_AUX status LED (Green)

  • On: P5V_AUX power is present.

  • Off: P5V_AUX is not ready.

3 Power fault LED (Amber)

  • Off: System normal.

  • Blinking (about one flash per second): System fault occurred.

    1. Check the power supply unit (PSU), power interposer board, and power distribution board. If the PSU, power interposer board, or power distribution board has any error, replace it.

    2. If the PSU, power interposer board, and power distribution board is error free, replace the upper processor board (CPU BD).