Error messages are displayed during POST.
One or more fans are not functioning.
Action
Be sure the fans are properly seated and working:
A.
Follow the procedures and warnings in the server documentation for removing the access panels and
accessing and replacing fans.
B.
Unseat, and then reseat, each fan according to the proper procedures.
Be sure the fan configuration meets the functional requirements of the server.
Be sure no ventilation issues exist.
Be sure no POST error messages are displayed while booting the server that indicate temperature
violation or fan failure information.
Use BMC WebUI to see if any event list error messages relating to fans are listed.
In the BMC WebUI interface, navigate to the Sensor page and verify the following information:
A.
Click the Fans tab and verify the fan status and fan speed.
B.
Click the Temperatures tab and verify the temperature readings for each location on the
Temperatures tab. If a hot spot is located, then check the airflow path for blockage by cables and other
material.
A hot spot is not an absolute temperature but is relative to a component specification.
Replace any required non-functioning fans and restart the server.
Be sure all fan slots have fans.
Verify the fan airflow path is not blocked by cables or other material.
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 over threshold.
An air baffle is missing or not installed properly and causing a disruption of the airflow.
The processor heatsink is not installed as indicated in the server documentation.
A supported fan is not installed in the server.
Action
Update the server to the latest firmware versions, such as BMC firmware, system BIOS, option
firmware, etc.
Verify the Temperature tab. Fan speeds can be high if a sensor temperature is over threshold.
