46 Troubleshooting
Tips• If a device does not work, ensure that the device is properly connected.
• If you added or removed a part before the problem started, review the
installation procedures and ensure that the part is correctly installed.
• If an error message appears on the screen, write down the exact message.
This message may help support personnel to diagnose and fix the
problem(s).
• If an error message occurs in a program, see the program documentation.
Power Problems
CAUTION: Before you begin any of the procedures in this section, read the safety
information that shipped with your computer. For additional safety best practices
information, see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.
IF THE POWER LIGHT IS OFF —The computer is either turned off or is not
receiving power.
• Reseat the power cable in the power connector on the back of the
computer and the electrical outlet.
• Bypass power strips, power extension cables, and other power protection
devices to verify that the computer turns on properly.
• Ensure that any power strips being used are plugged into an electrical
outlet and are turned on.
• Ensure that the electrical outlet is working by testing it with another
device, such as a lamp.
• Ensure that the main power cable and front panel cable are securely
connected to the system board.
IF THE POWER LIGHT IS GREEN AND THE COMPUTER IS NOT RESPONDING —
• Ensure that the display is connected and powered on.
• If the display is connected and powered on, see (see
your Service Manual
at support.dell.com
).
IF THE POWER LIGHT IS BLINKING GREEN —The computer is in sleep mode.
Press a key on the keyboard, move the mouse, or press the power button to
resume normal operation.
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