Please use appropriate INF file for your system configuration.

\Generic 4ch\Ydsxg10.inf
-> For Generic 4ch system using two AC97 CODECs.
\STAC9708_1\Ydsxg10.inf
-> For STAC9708 4ch system which has separate Jack for Rear
   output.
\STAC9708_2\Ydsxg10.inf
-> For STAC9708 4ch system which uses GPIO2 to switch between
   Line in/Rear output.