Hi toleda, first of all thanks for all your efforts. I am trying to get sound work on my system, but so far I have not been lucky. I am reporting my configuration following your guidelines, I hope I will not forget something. If you need further data, please let me know.
Description of audio problem
No audio device is shown in System Preferences/Sound.
OS X version/motherboard model/BIOS version/processor/graphics
OS X 10.9.1 vanilla / GA-EP35-DS3L with ALC888 / Intel Core 2 Duo E6400 / GeForce GT 240
Procedure/Guide Used/AppleHDA.kext version
I followed the guide 1. from this thread, [Guide] Add or Edit dsdt/HDEF.pdf.