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Troubleshooting 41
Power Problems
CAUTION: Before you begin any of the procedures in this section, follow the
safety information that shipped with your computer.
I
F 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 (see
your Service Manual at support.dell.com
).
IF THE POWER LIGHT IS BLUE AND THE COMPUTER IS NOT RESPONDING —
• Ensure that the display is connected and powered on.
• If the display is connected and powered on, see "Beep Codes" on page 31.
IF THE POWER LIGHT IS BLINKING BLUE — The computer is in standby mode. Press
a key on the keyboard, move the mouse, or press the power button to resume normal
operation.
I
F THE POWER LIGHT IS BLINKING AMBER — The computer is receiving electrical
power, a device might be malfunctioning or incorrectly installed.
• Remove and then reinstall all memory modules (see
your Service Manual at
support.dell.com
).
• Remove and then reinstall any expansion cards, including graphics cards (see
your
Service Manual at support.dell.com
).
IF THE POWER LIGHT IS STEADY AMBER — There is a power problem, a device may
be malfunctioning or incorrectly installed.
• Ensure that the processor power cable is securely connected to the system board
power connector (see
your Service Manual at support.dell.com
).
• Ensure that the main power cable and the front panel cable are securely connected to
the system board connector (see
your Service Manual at support.dell.com
).
book.book Page 41 Tuesday, June 17, 2008 6:17 PM