Specifications

Test the electrical outlet —
Ensure that the electrical outlet is working by testing it with another device, such as a lamp.
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Eliminate possible interference —
Turn off nearby fans, fluorescent lights, or halogen lamps to check for interference.
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Reinstall the audio driver —
See Reinstalling Drivers and Utilities.
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Run the Dell Diagnostics —
See Dell Diagnostics.
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No sound from headphones
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Check the headphone cable connection —
Ensure that the headphone cable is securely inserted into the headphone connector.
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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.
Touch Pad or Mouse Problems
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Check the touch pad settings —
Windows XP
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1. Click Start® Control Panel® Printers and Other Hardware® Mouse.
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2. Try adjusting the settings.
Windows Vista
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1. Click Start ® Control Panel® Hardware and Sound® Mouse.
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2. Adjust the settings, as needed.
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Check the mouse cable —
Shut down the computer, disconnect the mouse cable and check it for damage, then firmly reconnect the cable.
If you are using a mouse extension cable, disconnect it and connect the mouse directly to the computer.
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To verify that the problem is with the mouse, check the touch pad —
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1. Shut down the computer.
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2. Disconnect the mouse.
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3. Turn on the computer.
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NOTE: The volume control in some MP3 players overrides the Windows volume setting. If you have been listening to MP3 songs, ensure that you did not
turn the player volume down or off.