Conexant HD-Audio SmartAudio 221 Driver Download

Conexant Drivers

The HD-Audio SmartAudio 221 is an audio device manufactured by Conexant. This driver fixes problems with no sound or static or distorted sound, and can unlock advanced features of your audio device. This driver - "" - has been downloaded 5,369 times and is rated 5 out of 5 stars based on 36 reviews. Our users report success installing this driver update on PCs running Windows 7 and Windows XP. The total disk space used for this update is 3.1 MB.

36 Ratings (see all reviews)

Supported Models

Pavilion dv6000 dv6500

Conexant HD-Audio SmartAudio 221



Supported Operating Systems

Windows XP, Windows 2000, Windows NT4

File Name

Versions (2008-01-21) via .inf

Additional Notes

Windows XP sound card audio driver for HP Pavilion dv6000 or dv6500 notebook having AMD CPU. No drivers of HP site worked but this one.

Uploaded By

asg (DG Member) on 27-Aug-2009

Most Helpful Reviews

6 of 7 people found the following review helpful:
Dj Jorge Resendiz
Tested on Windows XP
9 Nov 2009
(9 minutes after download)

Installation: 5 out of 5
Stability: 3 out of 5
Compatibility:  out of 5
"Instala pero por algun motivo no se escucha el audio."
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See all Conexant HD-Audio SmartAudio 221 ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
cx20561_hd_smart_audio221xp/XP32/CHDAud.sys 732.2 KB 18 Dec 2007
cx20561_hd_smart_audio221xp/XP32/ISACS.ini 173 bytes 26 Jun 2007
cx20561_hd_smart_audio221xp/XP32/Setup.exe 800.1 KB 26 Jul 2007
cx20561_hd_smart_audio221xp/XP32/SmAudio/Setup.exe 796.0 KB 26 Jun 2007
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio.ini 7.7 KB 24 Jul 2007
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/SmAudio.exe 3.5 MB 24 Jul 2007
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res0401.dll 28.7 KB 12 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res0404.dll 24.6 KB 20 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res0405.dll 28.7 KB 12 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res0406.dll 28.7 KB 12 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res0407.dll 28.7 KB 20 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res0408.dll 28.7 KB 12 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res0409.dll 28.7 KB 12 Dec 2006
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res040a.dll 28.7 KB 20 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res040b.dll 28.7 KB 12 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res040c.dll 28.7 KB 20 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res040d.dll 28.7 KB 20 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res040e.dll 28.7 KB 12 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res0410.dll 28.7 KB 20 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res0411.dll 24.6 KB 12 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res0412.dll 24.6 KB 20 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res0413.dll 28.7 KB 12 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res0414.dll 28.7 KB 12 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res0415.dll 28.7 KB 12 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res0416.dll 28.7 KB 3 Oct 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res0419.dll 28.7 KB 12 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res041d.dll 28.7 KB 12 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res041e.dll 28.7 KB 12 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res041f.dll 28.7 KB 12 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res0804.dll 24.6 KB 12 Apr 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/SmAudio/dll/res0816.dll 28.7 KB 3 Oct 2005
cx20561_hd_smart_audio221xp/XP32/SmAudio/x64/setup64.exe 1.1 MB 26 Jun 2007
cx20561_hd_smart_audio221xp/XP32/UCI32A21.dll 217.1 KB 24 Jul 2007
cx20561_hd_smart_audio221xp/XP32/UIU32a.exe 794.6 KB 26 Jul 2007
cx20561_hd_smart_audio221xp/XP32/WiSVHe5.inf 29.2 KB 23 Feb 2008
cx20561_hd_smart_audio221xp/device id.txt 106 bytes 22 Aug 2009

How to Update Conexant HD-Audio SmartAudio 221 Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the Conexant HD-Audio SmartAudio 221 driver, click the green download button above. After you complete your download, move on to Step 2.

If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter Conexant HD-Audio SmartAudio 221 into the search box above and then submit. In the results, choose the best match for your PC and operating system.

Tech Tip: If you are having trouble deciding which is the right driver, try the Conexant Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.

To find the newest driver, you may need to visit the Conexant website. Most major device manufacturers update their drivers regularly.

Step 2 - Install Your Driver

Once you have downloaded your new driver, you'll need to install it. In Windows, use a built-in utility called Device Manager, which allows you to see all of the devices recognized by your system, and the drivers associated with them.

How to Open Device Manager

  • In Windows 11, Windows 10 & Windows 8.1, right-click the Start menu and select Device Manager

  • In Windows 8, swipe up from the bottom, or right-click anywhere on the desktop and choose "All Apps" -> swipe or scroll right and choose "Control Panel" (under Windows System section) -> Hardware and Sound -> Device Manager

  • In Windows 7, click Start -> Control Panel -> Hardware and Sound -> Device Manager

  • In Windows Vista, click Start -> Control Panel -> System and Maintenance -> Device Manager

  • In Windows XP, click Start -> Control Panel -> Performance and Maintenance -> System -> Hardware tab -> Device Manager button

How to Install a driver from Device Manager

  1. Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.

  2. Select the Driver tab.

  3. Click the Update Driver button and follow the instructions.

In most cases, you will need to reboot your computer in order for the driver update to take effect.

Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.

For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.

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