Maybe it was shipped WITHOUT a sound card and have no integrated sound device.
Get and install some sound card.

Maybe you are missing the required drivers.
Go on the maker's web site and download the drivers.
(zoostorm or the sound card maker web site)

Maybe the sound card is deactivated.
Open the device manager.
Locate the sound card and open it's properties.
If it say Inactive or Disabled, change it for Active or Enabled.
Click OK.

Electro
April 2013