ASUS TUA266 Driver Download (Official)

ASUS Drivers

The TUA266 is an audio device manufactured by ASUS. This driver fixes problems with no sound or static or distorted sound, and can unlock advanced features of your audio device. This version of "" has been downloaded 566 times with a user rating of 5 out of 5 stars, based on 19 reviews. Visitors have successfully installed this driver on PCs running Windows XP. The total disk space used for this update is 3.2 MB.

19 Ratings (see all reviews)

Supported Models


CMI8738/C3DX PCI Audio Device









Supported Operating Systems

Windows XP

File Name


V5.12.01.0639 (21-Oct-2002) (2002-07-16) via .inf

Additional Notes


C-Media CMI8738/C3DX Audio Driver V2.88 for Windows XP Audio Driver V5.12.01.0639.

Uploaded By

Alagappan (DG Staff Member) on 23-Jan-2006

Ratings & Reviews

See all ASUS TUA266 ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
AUDIO3D.DLL 712.7 KB 23 Nov 2001
CMAUDIO.CAT 49.6 KB 24 Jul 2002
CMAUDIO.INF 64.2 KB 16 Jul 2002
CMNPROP.DLL 32.8 KB 29 Mar 2002
CMUNINST.DAT 135.2 KB 11 Jul 2002
CMUNINST.EXE 139.3 KB 11 Jul 2002
CRLDS3D.DLL 766.0 KB 20 Oct 2000
MESetup.dat 1.3 MB 12 Jul 2002
MIXER.EXE 1.6 MB 12 Jul 2002
Setup.exe 864.3 KB 12 Jul 2002
W2KSetup.dat 1.3 MB 2 Jul 2002
cmaudio.dat 20.3 KB 16 Jul 2002
cmaudio.sys 379.7 KB 16 Jul 2002
cmiainfo.sys 3.4 KB 24 Jun 2002
cmijack.dat 36.9 KB 16 Jul 2002
setup.ini 428 bytes 11 Aug 2001

How to Update TUA266 Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the TUA266 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 ASUS TUA266 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 ASUS 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 ASUS 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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