Dell Studio XPS 435 MT (Late 2008) - Manual (Page 31)

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Solving Problems
Ensure that the electrical outlet is working •
by testing it with another device, such as
a lamp.
Ensure that the power supply light on the •
back of the computer is on. If the light is off
there may be a possible problem with the
power supply or the power cable.
If the problem persists, contact Dell (see
“Contacting Dell” on page 53).
If the power light is solid white and the
computer is not responding — The display may
not be connected or powered on. Ensure that
the display is properly connected and then turn
it off, then back on.
If the power light is blinking white — The
computer is in Sleep state. Press a key on the
keyboard, move the mouse or a finger on the
touch pad, or press the power button to resume
normal operation.
If the power light is solid amber — There may
be a problem with either the system board or the
power supply. For assistance, contact Dell (see
“Contacting Dell” on page 53).
If the power light is blinking amber — There
may be a problem with the system board. For
assistance, contact Dell (see “Contacting Dell”
on page 53).
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.