NEC Express5800 Series Maintenance Manual page 39

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Chapter 1 Maintenance
In the iLO web interface, navigate to the Information > System Information page and check the
following information:
1. Click the Fans tab and verify the fan status and fan speed.
2. 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.
For BladeSystem c-Class enclosure fan issues, review the fan section of OA SHOW ALL and the FAN
FRU low-level firmware.
[?]
The cooling fan operates at a higher speed than normal.
In the iLO web interface, navigate to the Information > System Information page and check the
following information:
- Click the Fans tab
Caution threshold.
- Click the Temperatures tab, and check the fan status and fan speed. Fan speeds greater than 60%
are expected to be loud.
Update the server to the latest firmware versions, such as iLO firmware, system ROM, option firmware,
etc.
Verify that all air ducts and required blanks, such as drive blanks, processor heatsink blanks, dummy
trays, etc., are installed.
Make sure that the correct processor heatsink is installed.
Make sure that the correct fan is installed, if the system supports both standard fans and performance
fans.
[?]
The cooling fan makes excessive noise while operating at low speed.
Replace the cooling fan.
[?]
A cooling fan with hot-plug support does not operate correctly.
Check the server LEDs to see if any statuses indicate the source of the issue.
Be sure no POST error messages are displayed.
Be sure hot-plug fan requirements are being met. For details, see User's Guide of the server.
[?]
The TPM is no longer detected from System Utility.
Contact your maintenance service company, and replace it with the new motherboard and TPM kit.
[?]
The memory does not function correctly.
Check any server LEDs that correspond to memory slots.
Be sure the memory meets the server requirements. For details, see User's Guide of the server.
.
Fan speeds can be high if a sensor temperature is within approximately 10°C of the
Express5800/R120h-1E, R120h-2E Maintenance Guide
5. Troubleshooting
39

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