HPE BladeSystem c-Class enclosure fans are operating at a high speed

Symptom

All fans in an HPE BladeSystem c-Class enclosure are operating at a high speed while fans in the other enclosures are operating at normal speed.

Action

If all fan LEDs are solid green but the fans in the enclosure are operating at a higher speed than normal, then access the following information from the OA or HPE iLO:

• Review the FAN section in OA SHOW ALL to locate the fan zone that is consuming more FAN speed.
• Verify the virtual FAN value for the affected servers within the FAN zone that indicates which server is consuming a lot of FAN speed.

Possible indicators could be either an outdated ROMBIOS or HPE iLO firmware, or a server repeatedly going through POST or reboot.

If a single fan is operating at approximately 80% and the issue is resolved after resetting the OA, then upgrade to OA firmware 3.60 or later to resolve the issue.

For more information, review the HPE BladeSystem c-Class Enclosure Troubleshooting Guide on the Hewlett Packard Enterprise website.