Troubleshooting a Nonredundant Power SupplyProbleml Power indicator on the front panel does not lightl Systems management software issues a power supply–related messagel No power to the systemAction1. Ensure that all power cables are properly connected to the system and any attached peripherals and to the electrical outlet (see "ExternalConnections").2. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.3. Remove the cover (see "Removing the Cover").4. Lay the system on its right side.5. Ensure that the power cables are properly connected to the power connectors on the system board.To identify system board connectors, see Figure A-3.6. Stand the system upright.7. Install the cover (see "Installing the Cover").8. Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.If the problem persists, see "Getting Help."Troubleshooting System CoolingProbleml A fan is not operating properlyl System message indicates a problem with coolingl Systems management software issues a fan-related error messagel Expansion-card filler brackets are not installed over empty expansion slotsAction1. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.2. Remove the cover (see "Removing the Cover").3. Lay the system on its right side.4. Ensure that the fan cables are properly connected to the fan connectors on the system board.To identify system board connectors, see Figure A-3.5. Ensure that expansion-card filler brackets are installed over any empty expansion slots (see "Removing an Expansion Card" in "Installing SystemCAUTION: Before you perform this procedure, see "Safety First—For You and Your System."CAUTION: See "Protecting Against Electrostatic Discharge" in the safety instructions in your System Information Guide.CAUTION: Before you perform this procedure, see "Safety First—For You and Your System."CAUTION: See "Protecting Against Electrostatic Discharge" in the safety instructions in your System Information Guide.