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Solving Problems 125
– Ensure that external audio devices are connected to the
microphone, line-out/speaker, or line-in connectors on the system
back panel.
– Ensure that the speaker cable is firmly connected to the computer.
– Test the electrical outlet: verify that the speakers are connected to
a working electrical outlet.
– Ensure that the speakers are turned on.
• If using a sound card, ensure that external audio devices are connected
to the sound card’s connectors and not to the microphone, line-
out/speaker, or line-in connectors on the system back panel (see "Back-
Panel Connectors and Indicators").
• Ensure that audio is not muted in the operating system (OS) settings.
See the OS documentation for more information.
• Adjust the volume control on the speakers, if it is provided.
• Adjust the volume control in the audio software. For more
information, see the documentation for either your OS or your audio
software.
• If you are trying to listen to an audio CD, try different CDs.
• Reinstall the audio driver for your operating system.
• Check for interference: electrical appliances on the same circuit or
operating in close proximity to the computer can cause interference.
If the problem still exists after you complete the basic checks, fill out the
Diagnostics Checklist as you perform the following steps:
1 Turn off nearby fans, lights, lamps, or other electrical devices.
Are the external speakers working properly?
Yes. One or more of those electrical devices was causing interference.
The problem is resolved.
No. Go to step 2.
2 Enter system setup and ensure that Sound under the Integrated
Devices option is set to On. Then exit system setup properly to save
the information, and reboot the system.