[NEED HELP] VoodooHDA only works with onboard graphics

[windowsphotoshop]

Hello,

I'm running Mountain Lion 10.8.5 on my Hackintosh. The only things which doesn't work are audio and sleep.
My Mainboard works with ALC888S. If I install the drivers from Multibeast 5.5.5 for ALC888 (both: Legacy and Current tested separately) no outputs were detected. So I decided to install VoodooHDA. I have tested all versions. Only VoodooHDA 0.2.1 works but only with onboard graphics and not with my Gigabyte HD6870 (GraphicsEnabler=No, otherwise it won't boot). So what do I wrong?
I'm not using any DSDT and I installed Easybeast.

Thanks in advance and kind regards

windowsMACphotoshop

 

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