No Audio on Extreme 4

[Ihaveaproblem]

Hi,
The onboard hd audio of my MB extreme4 dosen't work properly....i used all drivers (one provided with the MB, one from realtek official site and generic windows)
ther's no jack insertion alert and the control panel dosen't show all in/out available.
I acept any suggestions/tips/help.
OS:Windows 7 Enterprise 64bit.

Regards

[odiebugs]

Have you just kept installing drivers without uninstalling any ?

Are you using the HDMI port on your video card ?

Did you ever go to your speaker icon an set default ?

Did you open the realtek hd audio MGR and adjust the settings ?

Are you sure the speakers are plugged in, turned on ?