Same situation here.
There seems to be some success noted in another thread but I couldn't find the method.
I bought a Z87X-D3H yesterday and installed 10.9.1 with great success.
Everything went smooth up until upgrading to 10.9.2 which made it lose audio.
I have followed the guide in this thread.
Here are my parts:
Z87X-D3H F8 BIOS
16GB RAM (2 x 8GB)
Gigabyte GT 640
Can someone please help?
Well after a lot of reading I also tried MaciASL + your patches for changing layout-id but still no HDMI audio.
Also, after using the MaciASL patched DSDT, onboard audio started working without HDEnabler BUT I noticed a lot of slowdowns during OpenCL effects suchs as screensaver, windows...
I have just deleted S/L/E/HDAEnabler1.kext, rebooted and installed MultiBeast/ALC8xx/Without DSDT as you mention.
Right now I have audio working from my GA-P35-DS4 (rev2.0) but unfortunately still no HDMI audio.
Up until 10.9.1 everything worked perfectly with HDAEnabler1.kext + HDMI enabled...
Same problem here after today's 10.9.2 update.
I've been using a DSDT enabled HDMI audio just for my Gigabyte GT640 and up until 10.9.2 worked perfectly. Now it doesn't appear as a selection in the audio output list.
Tried to remove the custom DSDT but no fix.
I also believe the problem...