Compaq Presario CQ35 Windows XP Audio Driver and Installation

1. Install MS-UAA and restart:
Microsoft Universal Audio Architecture (UAA) Bus Driver for High Definition Audio (sp33867)

2. Install the Audio:
IDT High Definition Audio Codec
(2 drivers, if the first one didn't work, use 2nd drivers)
Download (SP41693)
Download (SP39671)


1. Download devcon utilities. link below
(link updated on Friday 29 June 2012)

2. Open a notepad and paste the following line,and name the notepad as audiopatch.bat, save the file at c:\patch\ with the name audiopatch.bat. (if the directory c:\patch don't exist create one. The Hardware ID may differ (i never study about the differences between ID) this is commonly what i found. Paste the code


To manually check your hardware ID follow this Guide:

a) Open device manager by click start, select run and type: DVMGMT.MSC

b) Right click at your audio drivers and select properties like the picture below.

c)then select details.
d) Select Hardware ID by expanding the Device description Drop down menu.

e)Then here you found your hardware ID which circle in red as shown in pic below. (The ID below is for my Desktop, REALTEK Audio so it difference with your ID). right click on it san select copy then paste it as note

3. Then extract file devcon.exe, copy \i386\devcon.exe to the c:\patch\ (in the folder where you save the audiopatch.bat).

4.Now, there are two options here, the simple steps is to right click on the audio patch, send to, desktop, whenever you start your computer double click on it, the sound should work.

----Ok this is a little advance options, the advantage is you do not have to create a shorcut and double click the bat files, just like the audio totally installed.-----

1. click start select run and type regedit.

2. find this value:


expand it by click the + icon
3. click on the run, on the right panel click anywhere and select new - string value( anew string value will appear normally with name new value#1.)

4. right click on the new string you create and rename as audiopatch.
5.double click on it and on the value data write c:\patch\audiopatch.bat


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