STAC92HD73*
===========
  ref           Reference board
  no-jd         BIOS setup but without jack-detection
  intel         Intel DG45* mobos
  dell-m6-amic  Dell desktops/laptops with analog mics
  dell-m6-dmic  Dell desktops/laptops with digital mics
  dell-m6       Dell desktops/laptops with both type of mics
  dell-eq       Dell desktops/laptops
  auto          BIOS setup (default)