Excessive Fan Noise (High Speeds) - HPE ProLiant Gen10 ...

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Fans Running At A Higher Than Expected Speed; Excessive Fan Noise (High Speeds) - HPE ProLiant Gen10 Troubleshooting Manual Hide thumbs Also See for ProLiant Gen10:

Troubleshooting manual (176 pages)

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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 Server documentation on page 124. 8. Be sure all fan slots have fans or blanks installed. For airflow requirements, see the Server documentation on page 124. 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.

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. 4. Verify that the correct processor heatsink is installed. 5. Verify that the correct fan is installed, if the system supports both standard fans and performance fans. For more information about updating the firmware, see Updating firmware or system ROM on page 114. For server-specific documentation, see Server documentation on page 124.

Excessive fan noise (high speeds)

Symptom Fans are operating at high speeds with excessive noise. Cause Fans can generate noise if running at a high speed (as expected) or when at low speed if there is an issue with the fan. Action 1. In the iLO web interface, navigate to the Information > System Information page. 2. Click the Fans tab. 3. Verify the fan status and fan speed. Fan speeds greater than 60% are expected to be loud. 4. If the fan is running at a higher speed than expected, see Fans running at a higher than expected speed on page 85. For server-specific documentation, see Server documentation on page 124. Fans running at a higher than expected speed 85 Table of Contents Previous Page Next Page

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Table of Contents

Troubleshooting

Supported servers 10
Troubleshooting preparation 11
Processor troubleshooting guidelines 15
Remote troubleshooting 26
Remote access to the Virtual Connect Manager 27
Using Onboard Administrator for remote troubleshooting of server blades 28
Diagnostic flowcharts 30
Correctable memory error threshold exceeded 90
Graphics and video adapter issues 93
Resources for troubleshooting 124

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