Dell OptiPlex 3010 Mini-Tower Owner's Manual

Contents

4TroubleshootingDiagnostic LEDsNOTE: The diagnostic LEDs only serve as an indicator of the progress through the Power-on Self-Test (POST)process. These LEDs do not indicate the problem that caused the POST routine to stop.The diagnostic LEDs are located on the front of the chassis next to the power button. These diagnostic LEDs are onlyactive and visible during the POST process. Once the operating system starts to load, they turn off and are no longervisible.The system now includes pre-POST and POST LEDs in an attempt to help identifying a possible problem with the systemeasier and more accurate.NOTE: The diagnostic lights will blink when the power button is amber or off, and will not blink when it is blue. Thishas no other significance.Diagnostic Light PatternsLEDPower ButtonProblem Description The computer is either turned off or is not receiving power.Troubleshooting Steps • Re-seat the power cable in the power connector at the back of the computer and theelectrical outlet.• Bypass power strips, power extension cables, and other power protection devices toverify that the computer turns on properly.• Ensure that any power strips being used are plugged into an electrical outlet and areturned on.• Ensure that the electrical outlet is working by testing it with another device, such as alamp.• Ensure that the main power cable and front panel cable are securely connected to thesystem board.LED39