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Troubleshooting by system LEDs and diagnostics display

See the following section for information on available system LEDs and diagnostics display.

  • Drive LEDs
    This topic provides information on drive LEDs.
  • E3.S CMM LEDs
    This topic provides information on LEDs of E3.S Compute Express Link (CXL) memory (CMM).
  • External diagnostics handset
    The external LCD diagnostics handset is an external device that is connected to the server with a cable, and it allows quick access to system information such as errors, system status, firmware, network, and health information.
  • Front-operator-panel LEDs and buttons
    The front operator panel of the server provides controls, connectors, and LEDs.
  • LEDs on the XCC system management port
    This topic provides information on LEDs of XCC system management port.
  • LED on the leakage detection sensor module
    This topic provides information about the LED on the leakage detection sensor module.
  • Power-supply-unit LEDs
    This topic provides information about various power supply unit LED status and corresponding action suggestions.
  • System-I/O-board LEDs
    The following illustrations show the light-emitting diodes (LEDs) on the system I/O board, also known as Datacenter Secure Control Module (DC-SCM).
  • Processor-board LEDs
    The following illustrations show the light-emitting diodes (LEDs) on the processor board.
  • Rear M.2 LEDs
    This topic provides troubleshooting information for the rear M.2 drive assembly.
  • Rear system LEDs
    This topic provides an overview of the LEDs on the rear of the server.