Dell Studio 1555 (Early 2009) - Manual (Page 31)

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Solving Problems
Network Problems
Wired Connections
If the network connection is lost — The cable
is loose or damaged. Check the cable to ensure
it is plugged in and not damaged.
Power Problems
If the power light is off — The computer is
either turned off or is not receiving power.
Reseat the power cable into both 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.
NOTE: The power LED is present on the
AC adapter cable.
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 problem persists, see the Dell Technology
Guide on the Dell Support website at
support.dell.com.
If the power light is blinking white — The
computer is in standby mode. Press a key on
the keyboard, move the pointer using the touch
pad or a connected mouse, or press the power
button to resume normal operation.