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2. Run the diagnostic programs to ensure your computer is operating correctly.
3. Reinstall the new hardware option or software following the manufacturer's instructions.
Select the problem your computer is experiencing from the following list:
• “Audio problems” on page 53
• “CD problems” on page 54
• “DVD problems” on page 55
• “Intermittent problems” on page 57
• “Keyboard, mouse, or pointing device problems” on page 57
• “Monitor problems” on page 59
• “Networking problems” on page 60
• “Option problems” on page 63
• “Performance and lockup problems” on page 64
• “Printer problems” on page 65
• “Serial port problems” on page 65
• “Software problems” on page 66
• “USB problems” on page 67
Audio problems
Select your symptom from the following list:
• “No audio in Windows” on page 53
• “An audio disc or AutoPlay-enabled disc does not automatically play when it is inserted into a drive”
on page 54
• “Sound comes from one external speaker only” on page 54
• “No audio in DOS applications or games” on page 54
No audio in Windows
Symptom: No audio in Windows
Actions:
• If you are using powered external speakers that have an On/Off control, verify that the On/Off control is
set to the On position and the speaker power cable is connected to a properly grounded, functional ac
electrical outlet.
• If your external speakers have a volume control, verify that the volume control is not set too low.
• Double-click the speaker icon in the Windows notication area. A master volume-control window opens.
Verify that the Mute settings are not checked and none of the volume settings is set too low.
• Some models have a front audio panel you can use to adjust volume. If you have a front audio panel,
verify that the volume is not set too low.
• Verify that your external speakers (and headphones, if used) are connected to the correct audio connector
on the computer. Most speaker cables are color-coded to match the connector.
Note: When external-speaker or headphone cables are attached to the audio connector, the internal
speaker, if present, is disabled. In most cases, if an audio adapter is installed in one of the expansion slots,
the audio function built into the system board is disabled; use the audio jacks on the adapter.
Chapter 10. Troubleshooting and diagnostics 53