My computer needs a driver for the sound card. Can anyone help me?

I have a dell dimension 2350. i recently had to format my hard drive. now i dont have a driver for my audio card. i dont know what audio card it has, but it came stock with the computer. if anyone can help me find a site where i can download a free driver for my audio card that would be great.

http://support.dell.com/support/downloads/index.aspx?c=us&l=en&s=gen Put in your service tag number and download the driver.