06-17-2010 07:56 PM
for normal 2.1 channel sound use the headphone port. if you need surround sound, then get the USB Sound card with the surround sound output.
06-18-2010 05:27 AM
try boot into the Rescue and Recovery console, during the initial laptop startup by pressing the blue thinkvantage button, then select hardware diagnostic. There should be a test for speakers.