I searched for my pc model (emachines d2685) and I found the correct driver:
Company Emachines
Model D2685
Operating System Windows XP (Note: might work with other versions of this os.)
Date Submitted Aug 10, 2004
Location This file is located on DriverGuide.com
File Realtek_AC97_5_10_0_5170.zip
(free registration required)
Comments
AC '97 Audio Driver
__________________________________________________ _______

-Everything is running ok! Thanks a lot for the tip!

Originally Posted by FreakY

Since I reformated my hard drive I dont know which is the correct audio driver to install for my sound card. Another problem is that I dont really know which sound card I have. How can I know which is my sound card?

so plz tell me how can i know the audio driver