MSI 945G Neo User Manual page 142

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Test Speakers
You can select the speaker by clicking it to test its functionality. The one you
select will light up and make testing sound. If any speaker fails to make sound, then
check whether the cable is inserted firmly to the connector or replace the bad
speakers with good ones. Or you may click the auto test button to test the
sounds of each speaker automatically.
Center
Front Left
Front Right
Side Right
Subwoofer
Side Left
Rear Right
Rear Left
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