is that topic here in Olarila? by the way I am not sure I have ALC883 after all. This is the audio system in more detail:
Intel Corporation 82801H (ICH8 Family) HD Audio Controller [8086:284b]
It's working! Turns out it is ALC888, not 883, this is so weird, the mobo manufacturer website has wrong info, wow !!!
applehdapatcher worked fine, installed (patched) applehda.kext, codeccommander.kext and hdaenabler.kext with Kext Utility in S/L/E and didn't edit config.plist.
maybe there is a better method with dsdt/ssdt patching but I don't know how to do that.