Dell R900 manual Troubleshooting Power Supplies, 137

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 "Using PowerEdge Diagnostics" on page 149.

2Locate 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 for extended periods of time with only one power supply installed, without a power supply blank installed, can cause the system to overheat.

Remove the faulty power supply. See "Removing a Power Supply" on page 68.

3Ensure that the power supply is properly installed by removing and reinstalling it. See "Removing a Power Supply" on page 68 and "Installing a Power Supply" on page 69.

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.

4Check the indicators to see if the problem is resolved. If not, remove the faulty power supply. See "Removing a Power Supply" on page 68.

Troubleshooting Your System

137