If you don't want to worry about that, you can get a replacement sound
card from eBay or any place that sells computer parts, or repairs computers. If opening your computer isn't for
you, you can get a USB sound device (a box, not a part that's on a cord). Find
a good one on eBay now. If
your computer is less than eight years old, then it probably comes with
a good one.
On-board sound devices are not as good as cards that you attach to your
computer, and it's never a bad idea to install a better one. If you use your PC to listen to music, you'll notice
a difference.
If you want to test the sound card you already have, you can use a Tone
Generator. It's a two-step process.
