Dell Precision T5400 (Late 2007) User Manual
Page 52
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Quick Reference Guide
T
E S T
T H E
E L E C T R I C A L
O U T L E T
—
Ensure that the electrical outlet is working by
testing it with another device, such as a lamp.
E
L I M I N A T E
P O S S I B L E
I N T E R F E R E N C E
—
Turn off nearby fans, fluorescent lights,
or 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
R
E I N S T A L L
T H E
S O U N D
D R I V E R
—
See "Drivers" in your User’s Guide.
R
U N
T H E
H
A R D W A R E
T
R O U B L E S H O O T E R
—
See "Restoring Your Operating System"
in your User’s Guide.
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
—
Ensure that the headphone cable is
securely inserted into the headphone connector (see "About Your Computer" in your
User’s Guide).
A
D J U S T
T H E
W
I N D O W S
V O L U M E
C O N T R O L
—
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.
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 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.