My computer is Dell optiplex 380, OS is windows xp sp3 with lastest update. Driver details:
Title: Audio: Realtek ALC269 HD Audio Driver Version : A02 OEM name : Realtek OEM Version: 5874
The drivers are installed from driver disk and shouldn't have any problem.
My problem is, the left side of my headphone has strong noise, no matter I change the headphone, or change audio output port in front of the case or back of the case, the problem still exist.