I am really sorry about taruga, I hope he will be ok.
and ,I also wonder him issue.

and about you;

how did you hack to combine the ALCinject in AppleHDA.kext.

can you share your information to make better my mac knowledge. because I am a programmer but not for mac and, for 2 months , I am a mac lover because I left formatting windows and reinstalling Thanks god!get rid of for wasting of time.

anyway, my mainboard is GA-EP45-DS3R.

i am trying your solution , I hope it will work.