Dell OptiPlex 3050 Tower Owners Manual - Page 82
Troubleshooting your computer, Diagnostic and Power LED codes
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7 Troubleshooting your computer You can troubleshoot your computer using indicators like diagnostic lights, and error messages during the operation of the computer. Diagnostic and Power LED codes Table 27. Power LED states Power LED light status Off Steady/blinking amber Blinking white light Steady white Possible cause Troubleshooting steps The computer is either turned • off or is not receiving power or in Hibernation mode. • • Re-seat the power cable in the power connector on the back of the computer and the electrical outlet. If the computer is plugged into a power strip, ensure that the power strip is plugged into an electrical outlet and is turned on. Also, bypass power protection devices, power strips, and power extension cables to verify that the computer turns on properly. Ensure the electrical outlet is working by testing it with another device, such as a lamp. Computer fails to complete POST or processor failure. • Remove and reinstall any cards. • Remove and reinstall the graphics card, if applicable. • Ensure the power cable is connected to the system board and processor. Computer is in sleep mode. • Press the power button to bring the computer out of the sleep mode. • Ensure all power cables are securely connected to the system board. • Ensure the main power cable and front panel cable are connected to the system board. The computer is fully functional If the computer is not and in the On state. responding, do the following: • Ensure the display is connected and turned on. 82 Troubleshooting your computer
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