Dell Precision T7400 (Late 2007) - Manual (Page 103)

Troubleshooting 103
Sound Problems
CAUTION: Before you begin any of the procedures in this section, follow the
safety instructions in the Product Information Guide.
A D J U ST T H E W INDO WS 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.
T
ES T T H E EL E CT 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 PO S S I B L E I N T E RF E R E N CE — Turn off nearby fans, fluorescent lights, or
halogen lamps to check for interference.
R
E I N S T A L L T H E S O U N D D RI VE R — See "Drivers" on page 129.
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 "Troubleshooting Software and
Hardware Problems in the Microsoft ® Windows ® XP and Microsoft Windows Vista™
Operating Systems" on page 131.