To set up your speakers:
Windows 7 and Windows Vista
1. Click Start
2. Select Speakers and click Configure. The Speaker Setup window
3. Select a speaker configuration under Audio channels: and click Test.
You should hear a tone from every speaker.
4. Click Next.
5. Follow the instructions on the screen.
If you experience problems with your computer sound, see the
knowledge base article 266424 at support.dell.com.
Setting Up 7.1 Audio
7.1 audio is most effective when the speakers are placed as shown in the
See the following figure to connect 7.1 speakers to your computer:
Control Panel Hardware and Sound→ Sound.