This section explains the LEDs on HPE Apollo 4200 Gen10 nodes, including front panel LEDs and buttons, power fault LEDs, and rear panel LEDs. You can use these LEDs to diagnose hardware health issues.

Front Panel LEDs and Buttons

To locate the front panel LEDs, use the following diagram.

Front panel LEDs on the HPE Apollo 4200 Gen10 node
  1. Power On or Standby Button and System Power LED

    • 🟢 Solid Green: System on
    • 🟢 Flashing Green: (1 flash per second) Performing power-on sequence
    • 🟠 Solid Amber: System in standby
    • Off: No power present
  2. UID Button and LED

    • 🔵 Solid Blue: Activated
    • 🔵 Flashing Blue:

      • 1 flash per second: Remote management or firmware upgrade in progress
      • 4 flashes per second: iLO manual reboot sequence initiated
      • 8 flashes per second: iLO manual reboot sequence in progress
    • Off: Deactivated
  3. Health LED

    • 🟢 Solid Green: Normal
    • 🟢 Flashing Green: (1 flash per second) iLO is rebooting
    • 🟠 Flashing Amber: System degraded
    • 🔴 Flashing Red: (1 flash per second) System critical
  4. NIC Status LED

    • 🟢 Solid Green: Link to network
    • 🟢 Flashing Green: (1 flash per second) Network active
    • Off: No network activity
  5. Front Drive Health or Thermal LED

    • 🟢 Solid Green: Drives which the SAS expander supports are functional. This applies to all front drives and the rear drives connected to the front drive cage 2 backplane.
    • 🟠 Solid Amber: Failure or predictive failure of one or more drives that the SAS expander supports. This applies to all front drives and to the rear drives connected to the front drive cage 2 backplane.
    • 🟠 Flashing Amber: (1 flash per second) The temperature sensor in one or more front drives is about to reach the thermal threshold. You must immediately slide the front drive cages back into the chassis and keep them there until the LED turns green.

    • Off: No power present

Power Fault LEDs

If the (1) Power On or Standby Button and System Power LED, (2) UID Button and LED, (3) Health LED, and (4) NIC Status LED flash simultaneously, a power fault has occurred. The following table lists the LED behavior corresponding to affected subsystems.

Number of LED Flashes Affected Subsystem
1 System board
2 Processor
3 Memory
4 Riser board PCIe slots
5 FlexibleLOM
6 Removable HPE Flexible Smart Array controller or Smart SAS HBA controller
7 System board PCIe slots
8 Power backplane or storage backplane
9 Power supply

Rear Panel LEDs

To locate the rear panel LEDs, use the following diagram.

Rear panel LEDs on the HPE Apollo 4200 Gen10 node
  1. Dedicated iLO Port 1 Link LED

    • 🟢 Green: Network link
    • Off: No network link
  2. Dedicated iLO Port 1 Activity LED

    • 🟢 Solid Green: Link to network
    • 🟢 Flashing Green: Network active
    • Off: No network activity
  3. UID LED

    • 🔵 Solid Blue: Activated
    • 🔵 Flashing Blue:

      • 1 flash per second: Remote management or firmware upgrade in progress
      • 4 flashes per second: iLO manual reboot sequence initiated
      • 8 flashes per second: iLO manual reboot sequence in progress
    • Off: Deactivated
  4. Dedicated iLO Port 2 Link LED

    • 🟢 Green: Network link
    • Off: No network link
  5. Dedicated iLO Port 2 Activity LED

    • 🟢 Solid Green: Link to network
    • 🟢 Flashing Green: Network active
    • Off: No network activity
  6. NIC Port 1 Link LED

    • 🟢 Green: Network link
    • Off: No network link
  7. NIC Port 1 Activity LED

    • 🟢 Solid Green: Link to network
    • 🟢 Flashing Green: Network active
    • Off: No network activity
  8. NIC Port 2 Link LED

    • 🟢 Green: Network link
    • Off: No network link
  9. NIC Port 2 Activity LED

    • 🟢 Solid Green: Link to network
    • 🟢 Flashing Green: Network active
    • Off: No network activity
  10. Power Supply LED

    • 🟢 Solid Green: Normal
    • Off: One or more of the following conditions exist:

      • Power unavailable
      • Power supply failed
      • Power supply in standby mode
      • Power supply error