Conexant Audio Driver for Windows 7
Honor Student
‎06-28-2011 09:28 AM

Dear all,


I am an user of HP Pavilion dv1000 (PR428UA#ABA) Notebook, which is a very primitive model, but after upgrade the RAM to 1GB, I changed the OS from Win XP to Win 7, and this is useful for now. I feel it is faster than when it was on XP.


The problem is, I can't get the audio driver, Conexant Cx20468 @ Intel 82801DBM ICH4-M - AC'97 Audio Controller [B-1], for Windows 7.


Yes, I have already checked many posts in this forum and tried similar drivers such as sp40270.exe or sp37816.exe.

But it doesn't work.


Do I have to give this challenge up as it is too old notebook?



Honor Student
‎06-28-2011 08:46 PM

Dear Paul,


Many thanks for your aid, but no luck.


In this circumstance, I even think using this without sound Smiley Happy









‎06-28-2011 09:28 PM

Hi, Jun:


Sorry that didn't work. I was hoping it would since it was an AC-97 audio driver.


I have one other easy idea you can try.


If you have your notebook connected to the internet, click on the audio device in the device manager. Click on the driver tab. Click on Update driver. Select the automatic search method and I am hoping Windows Update will download and install an audio driver for it.


I am pretty sure your notebook should be able to run Windows 7 including the audio.


If that doesn't work, try this complicated method... modify the XP driver to work in W7...but you should be able to do it. Just follow the instructions carefully:


1. Download driver sp30399.   You can get it from here:

2. Run sp30399.exe.

3. Go to the extracted folder (Default location is: c:\SWSetup\sp30399)

4. Edit qta3091.inf:
Search code block:

and add this line under:

So the result would look like this:

Note: Copy this part from the Device Manager> Multimedia Audio Controller>Details>Hardware ID:

You may have a slightly different device description. If you want to be sure, go to the device manager, open the unrecognized audio device's property page, select "Details" tab, and select "Hardware Ids" from the Properties drop down list. Copy the top listed hardware ID string, and replace the device description I wrote down above, with the one you see.

So the final result would look like this (if you have a different device description.):

5. Now all you have to do is to install the driver manually through device manager (Driver tab > Update Driver>Select the manual installation method, and browse to the extracted driver folder (sp30399).


Good luck, and please let us know if you get the sound to work.



Honor Student
‎06-29-2011 06:34 AM

Dear Mr. Paul Tikkanen,


I would like to express my appreciation to you.




I also tried this with a half possibility, but it worked.


Thanks very much again, I think I could use my Pavilion for three more years Smiley Happy



Best regards,






‎06-29-2011 07:12 AM

Hi, Jun:


You're very welcome.


I'm happy it worked. I have used XP drivers for other stuff that wouldn't work in Windows 7.


Sometimes you just have to let the computer know who's the boss.  Smiley Happy



Honor Student
‎11-24-2011 07:24 AM

Who can help me to find the that driver? I try several but no match.

‎11-24-2011 08:51 AM



Did you try the Vista driver for your notebook?


You may have to try manually installing it if the auto install doesn't work.  You can do this by clicking on the missing audio controller in the device manager. Then click on the driver tab. Click on Update driver. Select the Browse my computer for software method and browse to C:\SWSetup\sp34567. Make sure the Include Subfolders box is checked and see if it loads that way.


You can also try installing it using the auto update if the manual update doesn't work. Maybe windows update has a driver from the windows update site.  You will need to be connected to the Internet for the auto update method.



Honor Student
‎01-14-2012 11:49 AM

Dear Paul, dear all


i have a similar problem, but coulndt solve it. i use a hp compaq nx9005 (32bit). after upgrading to windows 7 i couldn find proper drivers for my audio. everything i tried ends with crashes after half a second to maximum 3 minutes (circa) of audioplay. i think i tried all the obvious drivers - that is diverse drivers for xp and vista. i also tried pauls proposal for the mentioned pavilion, editing the qta3091.inf (looking up my device description ID from the device manager).


As I edited the file blindly (i.e. not really knowing what im doing) maybe someone has an idea what other file to edit in what way – fitting to my good old calculating machine.


What else to do now? Buying a new one?




‎01-14-2012 02:35 PM

Hi, Helga:


Please read this post below and try the suggestions.


Please post back and let us know if any of them worked.





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