Mac OS X on x86 Hardware 2008–2024 Technical Archive
InfiniteMac OSx86 › Snow Leopard 10.6 › EP45-DQ6 and ALC889A
7,983 reads · 2009-09-02 – 2009-09-07
Report Snow Leopard 10.6 DSDT ALC889a / Audio Gigabyte G31M / P35

EP45-DQ6 and ALC889A

I have successfully been able to install Snow Leopard on a EP45-DQ6 motherboard but I am having trouble getting sound to work. I tried patching the DSDT file with the ALC889A codec but that doesn't do anything. Has anyone been able to get…

Primary Author
@CyCLoBoT Published 2009-09-02
Collection
Snow Leopard 10.6
Archival Footprint
7,983 historical reads · 5 curated field notes (from 10 dispatches) · 2009-09-02 – 2009-09-07
Credited Voices (4)
@CyCLoBoT (4)@megavolkan (3)@xXrkidXx (2)@mormegil

I have successfully been able to install Snow Leopard on a EP45-DQ6 motherboard but I am having trouble getting sound to work. I tried patching the DSDT file with the ALC889A codec but that doesn't do anything. Has anyone been able to get it to work? I know I require a LegacyHDA kext but I don't know which one I need to get for my sound card.

Author Updates & Technical Revisions

Follow-up dispatches by @CyCLoBoT

Author Update #1 @CyCLoBoT 2009-09-04

I hope its okay to post link to Insanelymac here. This is the guide I followed:

http://www.insanelymac.com/forum/index.php?showtopic=18… ↗

I had to make my own DSDT file though. If you look on Insanelymac, there is a guide that shows you how to create a DSDT file in Windows. There's an app called ACPI Patcher (I think). It was very straight forward.

Author Update #2 @CyCLoBoT 2009-09-04

I was not able to get my 9800 GT video card to work with DSDT file. So I had to use EFI string for it. As for the sound, I have not been able to get it to work correctly yet. But it seems a lot of people with ALC889A sound are having problems getting it to work on SL.

Sleep works just fine for me but the only thing is that I cannot wake the computer using mouse/keyboard. I have to press the power button to bring it back up. I guess its not a big deal.

Synthesized Community Field Notes

5 technical responses curated from 10 original dispatches

Field Note #2 @megavolkan 2009-09-04

Hey how did you menaged to install on EP45-DQ6? is there any guide and files/kexts spesific to this board?

Field Note #3 @megavolkan 2009-09-04

Thanks for fast reply and a last question if you don't mind:
Is everything working fine on EP45-DQ6 using this method? Like sound, ethernet etc? Is there anything spesific/different i should know about the process?

Thanks again

Field Note #5 @megavolkan 2009-09-07

Hey, i used the 5.1 method and it works like a charm, thanks to all But my microphone doesn't work. It works on leopard plugged into red port. It doesn't on Snow Leo. I can see BuiltIn Line Input (source is Line), and Built In Microphone Input (source is None).

Is anyone successfull usin the mic?

(PS: I've tried the other empty ports. Still no luck)

Corroborated & Participated: @xXrkidXx
Sources & Contributor Provenance (4 credited usernames · Thread #3903)
UsernameDossier ContributionDispatchesActive Window
@CyCLoBoTPrimary Author42009-09-02 → 2009-09-04
@megavolkanCore Contributor32009-09-04 → 2009-09-07
@xXrkidXxContributor22009-09-04
@mormegilContributor12009-09-02