sound driver problem

[ra2kals 0]

i reformat my computer last month until now i dont hav any sounds coming out of my speaker and i cant find my driver but in the device manager there is a unknown pci device but i know its my sound card but i cant install it i tried different driver to install it realtek,asus,via etc etc but i cant find it pls help

 

i hav a

 

service pack 3

and my motherboard is msi p4m900m2

[DosFreak 2]

http://www.majorgeeks.com/download3908.html