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No Audio, "No Output Device Found" - GA-Z68A-D3H-B3 - Help!

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Hi, I will appreciate help on this issue.

I built a system based on a GA-Z68A-D3H-B3 (rev 11) MB and an Intel i7 2700K Processor with 8 GB RAM

Installed Snow Leopard following instructions I'd found on tonymacx86 blog, and ran MuliBeast.

I can´t get the sound to work, the system profiler shows the audio card, but system preferences "No Output Device Found".


This is what System Profiler output:

Intel High Definition Audio:


Audio ID: 892

S/PDIF Optical Digital Audio Output:

Connection: Internal

Line Output:

Connection: 1/8-Inch Jack

External Microphone / iPhone Headset:

Connection: 1/8-Inch Jack

External Microphone / iPhone Headset:

Connection: 1/8-Inch Jack


Connection: 1/8-Inch Jack

S/PDIF Optical Digital Audio Output:

Connection: Optical





I connected a Sony stereo system in the rear output jack and restarted several times with same results.

After reading other posts I downloaded IOreg and ran it, a zipped report is attached


Aldo’s Mac Pro.ioreg.zip


Thanks in advance for any help or suggestions!

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Well, after some research I solved the issue.

I found a post in an external forum where a moderator asked to the guy having a similar issue, if he had deleted all the HDA items in System/Library/Extensions (after doing some installations)

I went to S/L/E and (first) found 2 DSDT files, (I installed both) so I deleted the wrong one, and trashed all the HDA folders, then restarted, and voilá, the sound is working perfectly.

I hope this can help anyone with a similar issue.

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