Article: OS X 10.8.4 Update
For ALC898 audio
Delete all the files of the audio Search for hd on folder System/Library/Extensions
Extract the files to desktop Run the Kext Utility and reboot the computer it works 100%
Article: Inside MultiBeast: Audio and HDMI Audio
Delete all the files of the audio register for hd
Transfer the files I sent you a folder
System/Library/Extensions
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