Dell Inspiron 531S Owner's  Manual - Page 75

R E I N S T A L L T H E S O U N D D R I V E R - See "Manually Reinstalling Drivers" on page 90. R U N T H E H A R D W A R E TR O U B L E S H O O T E R - See "Resolving Software and Hardware Incompatibilities" on page 91. 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 "Front View of the Computer" on page 15). 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. ENSURE THAT THE CORRECT AUDIO SOLUTION IS ENABLED IN THE BIOS SETUP P R O G R A M - See "System Setup" on page 172. Solving Problems 75