Troubleshooting Power Supply Units; Troubleshooting Power Source Problems; Troubleshooting Power Supply Unit Problems - Dell PowerEdge E31S Series Owner's Manual

4. Enter System Setup.
If the date and time displayed in System Setup are not correct, check the System Error Log (SEL) for system battery
messages.
Next steps
If the problem persists, see the Getting help section.
Related references
Getting help on page 201

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 are shipped with your product.
The following sections provide information on troubleshooting power source and power supply units problems.
NOTE: Power Supply Units (PSUs) are hot-pluggable.

Troubleshooting power source problems

Steps
1. Press the power button to ensure that your system is turned on. If the power indicator does not glow when the power
button is pressed, press the power button firmly.
2. Plug in another working power supply unit to ensure that the system board is not faulty.
3. Ensure that no loose connections exist.
For example, loose power cables.
4. Ensure that the power source meets applicable standards.
5. Ensure that there are no short circuits.
6. Have a qualified electrician check the line voltage to ensure that it meets the needed specifications.
Results
NOTE: Some power supply units require 200-240V AC to deliver their rated capacity. For more information, see the system
Technical Specifications section in the Installation and Service Manual available at www.dell.com/poweredgemanuals.

Troubleshooting power supply unit problems

Steps
1. Ensure that no loose connections exist.
For example, loose power cables.
2. Ensure that the power supply handle LED indicates that the power supply is working properly.
3. If you have recently upgraded your system, ensure that the power supply unit has enough power to support the new system.
4. If you have a redundant power supply configuration, ensure that both the power supply units are of the same type and
wattage.
If the LED You may have to upgrade to a higher wattage power supply unit.
5. Ensure that you use only power supply units with the Extended Power Performance (EPP) label on the back.
192 Troubleshooting your system