MacBook Pro '10 Low Sound: Cirrus Logic CS4206A (AB 11)

Question

MacBook Pro '10 Low Sound: Cirrus Logic CS4206A (AB 11)

Hey there,

I am using Windows 7 through Boot Camp on my 2010 MacBook Pro. The sound on the Mac OS X side is pretty good, on the other hand, it is considerably lower on the Windows side. I have come across many articles but none of them actually helped me.

This is the audio chip I have: Cirrus Logic CS4206A (AB 11)

I tried downloading the "High Definition Codecs" driver from Cirrus Logic's website but the download link doesn't work.

http://www.cirrus.com/en/support/lic/lic3.html?uri=/en/pubs/software/CS4207WinVista_Win7_32-64-bit6-6001-1-30.zip

Please help! I need a good sound on the Windows side.

Thank you.

2010 MacBook Pro, Mac OS X (10.6.6), 15" Core i5 2.4 GHz

Posted on Mar 2, 2011 11:13 AM

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Answer 1

Mar 16, 2011 1:21 AM in response to Tarek Elsakka

I've been a long time reader on the Apple forums and would like to contribute back.

The weird thing is, I had low volume in Windows 7 Ultimate x64 w/ bootcamp 3.2 before I installed the driver in the link you provided.

After I installed the CS4207 drivers the sound went back to normal, meaning the loudness was similar to OS X 10.6.6.

Have you tried installing the drivers from bootcamp 3.2?

I followed the step by step instructions in this youtube video:

http://www.youtube.com/watch?v=uVfRQ0YIDUI

I skipped the hotfix step as it is unnecessary, did a windows update for important updates (don't restart yet), went ahead and popped in the snow leopard disc and installed bootcamp from there. When done installing, restart.

Immediately after booting back into Windows (which takes forever) launch apple update and download and install bootcamp 3.2, restart.

From here on I updated Win7 until I couldn't update anymore.

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Answer 2

The hatter

Level 9

60,990 points

Mar 16, 2011 4:32 AM in response to Tarek Elsakka

RealityPod site tips and fixes
http://realitypod.com/category/hacks-and-cracks/mac-hacks-and-cracks/

*MacBook Pro No Sound in Windows 7*
Posted by Geek on +Jul 23rd, 2010+

* You are running Vista or Windows 7 on a Macbook
* You have no or low audio/ sound. In macbook pro, you may also see a red light in your audio jack.
*Step 1:* Download the Macbook Pro Cirrus Logic CS4206A Driver from our server.
+(As a request, please do not hotlink this file anywhere else or our server will automatically remove the file from server.)+

+In case the above download link does not work google+ CirrusAudio.10.6.1.zip

*Step 2:* Extract the right type of Driver
(depending on your windows XP/ 7/ 32 bit/ 64bit)

Step3: for Windows 7 only: Right Click on exe file of driver.
Select Properties> Compatibility > run in compatibility mode
Select Windows Vista from drop down menu and Click OK

*Step 4:* Double click the driver and install.

http://realitypod.com/2010/07/macbook-pro-no-sound-in-windows-7-final-fix/
----
There should be an Apple fix, or article, or at the least a sticky.
+I'm not a fan of user contributed tips library though they could do a lot to reduce the posting of same 100x+

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Answer 3

Jul 12, 2011 12:03 PM in response to Tarek Elsakka

i have the same problem with vista, (same computer and everything)

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