Dell R300 owner manual Troubleshooting Power Supplies

Troubleshooting Power Supplies

Problem

•System-status indicators are amber.

•Power-supply fault indicators are amber.

•Front-panel status LCD indicates a problem with the power supplies.

Action

CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before performing any procedure, see your Product Information Guide for complete information about safety precautions, working inside the computer and protecting against electrostatic discharge.

1Run the appropriate online diagnostics test. See "Entering the System Setup Program" on page 45.

2Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.

3Open the system. See "Opening and Closing the System" on page 68.

4Locate the faulty power supply.

The power supply's fault indicator is lit. See "Power Indicator Codes" on page 20.

NOTICE: You can hot plug the power supplies. One power supply must be installed for the system to operate. The system is in the redundant mode when two power supplies are installed. Remove and install only one power supply at a time in a system that is powered on. Operating the system with only one power supply installed for extended periods of time can cause the system to overheat.

5Ensure that the power supply is properly installed by removing and reinstalling it. See "Replacing a Power Supply" on page 89.

NOTE: After installing a power supply, allow several seconds for the system to recognize the power supply and to determine if it is working properly. The power indicator turns green to signify that the power supply is functioning properly. See "Power Indicator Codes" on page 20.

Troubleshooting Your System

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