Anyway, one doesn't know if it works for Win 8 at all. I can't even find the uploaded files anymore. There was an IDT modded drivers section on before, but unfortunately the project is dead. The audio business was sold to IDT, but the IDT Website sucks: Detailed descriptions of all sound cards, but no drivers at all! The Sigmatel website obviously doesn't provide drivers since it's not existant anymore. When I set the SPDIF out as output: No sound at all! When I set the normal speakers as output: Sound starts to play through the speakers connected to the docking station, but aborts quickly (for example the Windows sound when changing the volume). Now again I have sound for the laptop, but when connected to the docking station the following happens:

First, they didn't wanna install, but then I made a BIOS update from Revision A03 to A18 and it solved the problem. I installed the Sigmatel drivers for Windows Vista 32bit. The generic Windows sound driver made the sound for the laptop run, but not with the docking station.

I have a Dell Latitude D630 and Windows 8.

Sigmatel audio 1.0 4889.0 nd375 cp1