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Troubleshooting power supply units
Prerequisites
CAUTION:
Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple
repairs as authorized in your product documentation, or as directed by the online or telephone service and support team.
Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
CAUTION:
At least one power supply (PSU) must be installed for the system to operate. Operating the system with only one
PSU installed for extended periods of time can cause the system to overheat.
Steps
1
Identify the faulty PSU by the PSU's fault indicator.
2
Reseat the PSU by removing and reinstalling it.
NOTE:
After installing a PSU, allow several seconds for the system to recognize the PSU and to determine if it is working
properly.
3
If the problem persists, see
Troubleshooting cooling problems
CAUTION:
Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple
repairs as authorized in your product documentation, or as directed by the online or telephone service and support team.
Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that are shipped with your product.
Ensure that the following conditions exist:
•
System cover, cooling shroud, EMI filler panel, memory module blank, or back filler bracket is not removed.
•
Ambient temperature is not higher than the system specific ambient temperature.
•
External airflow is not obstructed.
•
A cooling fan is not removed or has not failed.
•
The expansion card installation guidelines have been followed.
Additional cooling can be added by one of the following methods:
From the iDRAC web GUI:
1
Click Hardware > Fans > Setup.
2
From the Fan Speed Offset drop-down list, select the cooling level required or set the minimum fan speed to a custom value.
From F2 System Setup:
1
Select iDRAC Settings > Thermal, and set a higher fan speed from the fan speed offset or minimum fan speed.
From RACADM commands:
1
Run the command racadm help system.thermalsettings
For more information, see the Integrated Dell Remote Access User's Guide at Dell.com/idracmanuals.
Getting
Help.
Troubleshooting your system
183
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Troubleshooting
