found a way to get rid of the white noise when using VoodooHDA and ALC887-VD2
- install the last voodooHDA
- go to /system/library/extensions --> VoodooHDA
- show content
- open "content" folder
- drag the "info.plist" to desktop
- open it with text editor and then searche and change the iGain and iMix values to 10 and 30
like this < dict>
< key>iGain< /key>
< string>10< /string>
< key>iMix< /key>
< string>30< /string>
< /dict>
- Run Kext Utility or repair permissions
from tonymacx86.com