6. Have a qualified electrician check the line voltage to ensure that it meets the needed
specifications.
Power supply unit problems
Procedure
1. Ensure that no loose connections exist.
For example, loose power cables.
2. Ensure that the power supply unit (PSU) handle or LED indicates that the PSU is working
properly.
For more information about PSU indicators, see the Power indicator codes section.
3. If you have recently upgraded your system, ensure that the PSU has enough power to
support the new system.
4. If you have a redundant PSU configuration, ensure that both the PSUs are of the same type
and wattage.
You may have to upgrade to a higher wattage PSU.
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:
l
System cover, cooling shroud, EMI filler panel, memory module blank, or back filler bracket is
not removed.
l
Ambient temperature is not higher than the system specific ambient temperature.
l
External airflow is not obstructed.
l
A cooling fan is not removed or has not failed.
l
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:
Troubleshooting your system
Dell PowerEdge R430 Owner's Manual 207
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