6.
In the iLO web interface, navigate to the
Information
>
System Information
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. Hot spot is
defined as temperature on a sensor within 3°C of a Caution threshold listed on the Temperature
tab.
7.
Replace any required non-functioning fans and restart the server. For specifications on fan
requirements, see the
on page 167.
8.
Be sure all fan slots have fans or blanks installed.
9.
Verify the fan airflow path is not blocked by cables or other material.
10.
For HPE BladeSystem c-Class enclosure fan issues, review the fan section of Onboard Administrator
SHOW ALL and the FAN FRU low-level firmware. For more information, see the
HPE BladeSystem
c-Class Enclosure Troubleshooting Guide
on the Hewlett Packard Enterprise website (
www.hpe.com/support/BladeSystem_Enclosure_TSG_en
).
More information
Server user guide on page 167
Server documentation on page 167
Troubleshooting resources on page 166
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 server documentation.
• A supported fan is not installed in the server.
Action
1.
Update the server to the latest firmware versions, such as iLO firmware, system BIOS, option
firmware, etc.
2.
Verify the Temperature tab. Fan speeds can be high if a sensor temperature is within approximately
10°C of the Caution threshold.
3.
Verify that all air baffles and required blanks, such as drive blanks, processor heatsink blanks, power
supply blanks, etc., are installed.
98
Fans running at a higher than expected speed
