Dell Studio 1457 (Late 2009) - Manual (Page 48)

46
Solving Problems
Power Problems
If the power light is off — The computer is
either turned off or is not receiving power.
Reseat the power cable into the power •
connector on 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 that the power strip
is turned on. Also bypass power protection
devices, power strips, and power extension
cables to verify that the computer turns on
properly.
Ensure that the electrical outlet is working
•
by testing it with another device, such as
a lamp.
Check the AC adapter cable connections.
•
If the AC adapter has a light, ensure that the
light on the AC adapter is on.
If the power light is solid white and the
computer is not responding — The display may
not be responding. Press the power button until
the computer turns off and then turn it back on.
If the power light is blinking white — The
computer is in standby mode. Move the mouse
or press the power button to resume normal
operation.
If you encounter interference that hinders
reception on your computer — An unwanted
signal is creating interference by interrupting or
blocking other signals. Some possible causes of
interference are:
Power, keyboard, and mouse extension cables. •
Too many devices connected to a power strip. •
Multiple power strips connected to the same •
electrical outlet.