Audio issue Dell Vostro 470

[LvX]

Hi guys

 

i've succesfully installed Yosemite 10.10 GM1 (Legacy with latest CloverEFI) on a Dell Vostro 470 with latest BIOS update (same as XPS8500) with an nVidia G210 (the integrate HD4000 from the i7-3770 doesn't get kext loaded). Everything seems to work (sleep also) but not the integraded audio. It should be an ALC887, i've tried all methos:

 

inject with Clover

patch AppleHDA for Yosemite 

add layout-id 1,2,3 in the DSDT table

 

but nothing to do.. the system doesn't recognize the audio card

 

There are other step that I could do to make it work? May be I missing something..

 

Many thanks!