I saw this post about the ALC662 which I also have in my iMedia Parkard Bell computer. Indeed data sheets state 92KHz sample rate max. But my ALC662 works with Stereo Tool, even the RDS. Why! I took the lid off the computer to make sure it is ALC662.
Windows 8.1 kept indicating 192 KHz is not supported despite working RDS with Stereo Tool. But for some reason today, even windows is allowing the setting to 192 KHz.
The settings I have been offered were 24bit 192 KHz for the output and 16 bit 192 KHz for the microphone input.
I hope the above experience I have had is of use to some of you.