Video And Monitor Problems - Dell OptiPlex 330 User Manual

halogen lamps to check for interference.
R U N T H E S P E A K E R D I A G N O S T I C S
E I N S T A L L T H E S O U N D D R I V E R
R
R U N T H E H A R D W A R E
Hardware Problems" on page 136.
No sound from headphones
C H E C K T H E H E A D P H O N E C A B L E C O N N E C T I O N
securely inserted into the headphone connector (see "Front View" on page 21 and
"Back View" on page 23).
D J U S T T H E
A W
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:
safety instructions in the Product Information Guide.
NOTICE:
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.
The screen is difficult to read
C H E C K T H E M O N I T O R C A B L E C O N N E C T I O N
• Ensure that the monitor cable is connected to the correct graphics card (for dual
graphics card configurations).
• If you are using the optional
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.
128
Troubleshooting
— See "Drivers" on page 133.
T R O U B L E S H O O T E R
I N D O W S V O L U M E C O N T R O L
Before you begin any of the procedures in this section, follow the
If your computer came with a PCI graphics card installed, removal of the
DVI-to-VGA
— See "Troubleshooting Software and
— Ensure that the headphone cable is
— Click or double-click the speaker icon
—
adapter, ensure that the adapter is