Testing a PC's 5.1 surround sound system lets you perform any necessary tweaking, such as realigning speakers for maximum sound quality. Testing the speakers also ensures that they're plugged in and functioning correctly. Luckily, Windows includes a speaker test tool. You can test your entire 5.1 surround sound system, or play a sound out of a specific speaker to make sure it's working properly. Windows plays test sounds out of the speakers you select and displays a sound wave animation next to the speaker it's playing sound out of.
Click "Start" and "Control Panel."
Click "Sound" in the Control Panel window.
Click your 5.1 speaker system in the list of playback devices.
Click "5.1 Surround" in the list of audio channels.
Test the entire 5.1 surround sound system by clicking "Test" or test a specific speaker by clicking its image at the right side of the window.