Troubleshooting Cooling Problems; Troubleshooting Cooling Fans - Dell EMC NX430 System Owner's Manual

5 Ensure that you use only PSUs with the Extended Power Performance (EPP) label on the back.
6 Reseat the PSU.
NOTE: After installing a PSU, allow several seconds for the system to recognize the PSU and determine if it is working
properly.
If the problem persists, see the Getting help section.

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.

Troubleshooting cooling fans

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 are shipped with your product.
NOTE: The fan number is referenced by the systems management software. In the event of a problem with a particular fan, you
can easily identify and replace it by noting down the fan numbers on the cooling fan assembly.
1 Follow the safety guidelines listed in safety instructions section.
2 Follow the procedure listed in the Before working inside your system section.
Steps
1 Remove the system cover.
2 Reseat the fan or the fan's power cable.
3 Install the system cover.
4 Restart the system.
108 Troubleshooting your system