How can I tell if my sound card ...

[persianxballer]

is working properly?
A few days ago, I turned on my computer, and I couldn't hear the sound anymore.
How can I tell if the sound card is still working and hasn't burned out?

 

[TheMajor]

Play a song.

 

[Apokalipse]

go to start, run and type sndvol32
check the system volumes there