Audio device on high definition audio bus

here is the link for Vista audio driver

ftp://ftp.hp.com/pub/softpaq/sp40501-41000/sp40762.exe

you will be able to install this only after installing "Microsoft UAA High Definition Bus Driver"

Here is the download link for "Microsoft UAA High Definition Bus Driver"

http://america.giga-byte.com/FileList/Driver/motherboard_driver_audio_realtek_azalia.exe

Install "Microsoft UAA High Definition Bus Driver" first and install the Audio Driver.

Your sound will work fine.

Download "Microsoft Universal Audio Architecture (UAA) Bus Driver for High Definition Audio", here is the download link below

ftp://ftp.hp.com/pub/softpaq/sp33501-34000/sp33867.exe

now download "Conexant High Definition Audio Driver" ,here is the download link

ftp://ftp.hp.com/pub/softpaq/sp34001-34500/sp34200.exe

First install  "Microsoft Universal Audio Architecture (UAA) Bus Driver" and then "Conexant High Definition Audio Driver"

your sound will work now.

Rate this Solution.

download this microsoft UAA bus driver it will solve your problem;down is the link   :  
http://america.giga-byte.com/FileList/Driver/motherboard_driver_audio_realtek_azalia.exe

Try a system restore to a previous date when the sound was working fine. Please backup all your current DATA as you may lose them.
Or click here and select your operating system and download and install the Conexant High-Definition Audio Driver
Good Luck!

your driver for UAA bus need to be installed THEN only you can install modem drivers after installaion of high definition audio drivers.

Hi,

1. Make sure your installation windows XP has been updated to service pack 1 or service pack 2 before continuing. Right-click on “My computer” icon on desktop. Select “Properties\ General. If your system does not include service pack, please update from Microsoft's official website. Connect to internet and launch “Internet Explorer”, click “Tools” on the tool bar and select “Windows Update”.

2. Make sure that the “Microsoft UAA Bus Driver for High Definition Audio” exists in “Device manager\ System devices”. Right-click the “My computer” icon on your desktop. Select “Properties\ Hardware\ Device Manager. If the “UAA Bus Driver” does not exist, install it from the download link below to install on your system (for some reason, Microsoft does not post a download link for this update anywhere on their site). Launch the sp32646 file you have downloaded from HP's website (URL below) and reboot computer after the installation.

3. If the “Microsoft UAA Bus Driver for High Definition Audio” is working properly, there may be an “Audio Device on High Definition Audio Bus” or "Realtek High Definition Audio" behind “Sound, video and game controllers” or an “Unknown device” behind “Other devices”. Please disable any of these devices. You can skip this step if device mentioned earlier does not exist in “Device Manager”.

4. Disable the “Microsoft UAA Bus Driver for High Definition Audio” under "System Devices".

5. After that, uninstall the “Microsoft UAA Bus Driver for High Definition Audio" by right-clicking the device and select uninstall.

6. When finish with the above steps, click the “Scan for hardware changes” button by clicking on the computer icon with magnifying glass toward the top of the page. When the “Found new hardware wizard” is displayed, don't click the “Next” button. Instead, cancel the installation by clicking cancel.

7. You can now install the audio driver from the driver file that you have downloaded from the internet or from your driver CD/ DVD.

Thanks.

Have you downloaded the Xp sofware update from the Compaq website? Maybe it contains the extra drivers?  If you know which audio chip(From manual,also downloadable for below) you could go to their website for the audio driver.


http://h10025.www1.hp.com/ewfrf/wc/softwareList?os=228&lc=en&dlc=en&cc=us〈=en&product=3752689

i need drivers for my satellite L310, PLS HELP ME CNF7051 ETHERNET CONTROLLER MASS STORAGE CONTROLLER MODEM DEVICE ON HIGH DEFINITION AUDIO BUS PCI DEVICE SM BUS CONTROLLER VIDEO CONTOLLER VIDEO CONTROLLER(VGA) UNKNOWN DEVICE

These are the same thing , they will both disappear when you install the audio driver

http://support.acer-euro.com/drivers/notebook/as_3680.html

Click under Windows XP Drivers And Utilities And click Audio Driver

Always check the manufacturers site for your drivers!

audio device on high definition audio bus acer 4720 is not installing.
please suggestion me a solve