Fans running at a higher than expected speed

Symptom

The fans are running at a higher speed than expected.

Cause
  • The system temperature sensor is reading within approximately 10°C of the Caution threshold.
  • An air baffle or blank is missing or not installed properly and causing a disruption of the airflow.
  • The processor heatsink is not installed as indicated in the compute module documentation.
  • A supported fan is not installed in the frame.
Action
  1. Update the compute module to the latest firmware versions, such as iLO firmware, system BIOS, option firmware.
  2. Verify the Fan status using Fans section of the HPE OneView Enclosures screen.

    For more information, see HPE OneView Help for HPE Synergy or the HPE OneView User Guide for HPE Synergy on the Hewlett Packard Enterprise website (http://www.hpe.com/info/synergy-docs).

  3. Verify the Temperature tab in HPE iLO.

    Fan speeds can be high if a sensor temperature is within approximately 10°C of the Caution threshold.

  4. Verify that all air baffles and required blanks are installed.

    Examples of required blanks include drive blanks, processor heatsink blanks, and power supply blanks.

    For product-specific information, see the HPE Synergy documentation on the Hewlett Packard Enterprise website (http://www.hpe.com/info/synergy-docs).