'codec: 8b19d411 is missing' Ive got the 1150 sound card. What do i do? The only way i got this to work on El Capitan was installing an AppleHda file from an older version of multibeast. I tried that again and it doesn't seem to work. I then tried your method just to get that error code and thus no files were changed.
That's how I managed to make sound work on that same mobo.
I found in multibeast 6.5.1 the pkg file AppleHDA-889 in/Resources. I extracted it, placing it on my desktop.
Simply run it or extract AppleHDA.kext and HDAEnabler889.kext and use kextBeast.
It was a just one of those trickeries that works against all odds.
I didn't have to modify my EFI folder nor my plist file. But the above works, 100%