52 Quick Reference Guide
TEST THE ELECTRICAL OUTLET —Ensure that the electrical outlet is working by
testing it with another device, such as a lamp.
ELIMINATE POSSIBLE INTERFERENCE —Turn off nearby fans, fluorescent lights,
orhalogen lamps to check for interference.
RUN THE SPEAKER DIAGNOSTICS
REINSTALL THE SOUND DRIVER —See "Drivers" in your User’s Guide.
RUN THE HARDWARE TROUBLESHOOTER—See "Restoring Your Operating System"
in your User’s Guide.
No sound from headphones
CHECK THE HEADPHONE CABLE CONNECTION —Ensure that the headphone cable is
securely inserted into the headphone connector (see "About Your Computer" in your
User’s Guide).
ADJUST THE WINDOWS VOLUME CONTROL —Click or double-click the speaker icon
in the lower-right corner of your screen. Ensure that the volume is turned up and that
the sound is not muted.
Video and Monitor Problems
CAUTION: Before you begin any of the procedures in this section, follow the
safety instructions in the
Product Information Guide
.
NOTICE: If your computer came with a PCI Express graphics card installed, removal of
the card is not necessary when installing additional graphics cards; however, the card
is required for troubleshooting purposes. If you remove the card, store it in a safe and
secure location. For information about your graphics card, go to support.dell.com.
The screen is blank
NOTE: For troubleshooting procedures, see the monitor’s documentation.
CHECK THE MONITOR CABLE CONNECTION —
• Ensure that the monitor cable is connected to the correct graphics card (for dual
graphics card configurations).
• If you are using a DVI-to-VGA adapter, ensure that the adapter is correctly attached to
the graphics card and monitor.
• Ensure that the monitor cable is connected as shown on the setup diagram for your
computer.
• Remove any video extension cables and connect the monitor directly to the computer.