Diamond Multimedia CMI8738/C3DX PCI Audio Device Driver Download

Diamond Multimedia Drivers

The CMI8738/C3DX PCI Audio Device is an audio device manufactured by Diamond Multimedia. This driver fixes problems with no sound or static or distorted sound, and can unlock advanced features of your audio device. This version of "DiamondDT688-Wxp.zip" is rated (5 out of 5 stars) based on 13,959 downloads and 65 reviews. Our users report success installing this driver update on PCs running Windows XP. The total disk space used for this update is 2.3 MB.

65 Ratings (see all reviews)

Supported Models


CMI8738/C3DX PCI Audio Device


Diamond Multimedia


Supported Operating Systems

Windows XP

File Name

Versions (2001-11-01) via .inf

Uploaded By

A Friend (DG Member) on 12-Jun-2002

Ratings & Reviews

See all Diamond Multimedia CMI8738/C3DX PCI Audio Device ratings and reviews

How to Update CMI8738/C3DX PCI Audio Device Device Drivers

Step 1 - Download Your Driver

To get the CMI8738/C3DX PCI Audio Device 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 Diamond Multimedia CMI8738/C3DX PCI Audio Device 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 Diamond Multimedia 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 Diamond Multimedia website. Most major device manufacturers update their drivers regularly.

Step 2 - Install Your Driver

After downloading the new driver, proceed with installation. On Windows, use the built-in Device Manager utility to manage your system's devices and drivers. To access it:

  1. Right-click the Start button

  2. Select "Device Manager" from the menu

  3. Locate the device needing the update

  4. Right-click the device and choose "Update driver"

  5. Follow the on-screen prompts to install

Once complete, restart your computer to ensure the new driver is fully implemented and functioning properly.

This process helps maintain your system's performance and compatibility with various hardware components.

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.

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
setup.ini 428 bytes 11 Aug 2001
W2KSetup.dat 184.3 KB 9 Oct 2001
cmaudio.sys 280.8 KB 30 Oct 2001
Mixer.exe 1.2 MB 22 Oct 2001
CMNprop.dll 28.7 KB 16 Oct 2001
CRLDS3D.DLL 766.0 KB 20 Oct 2000
CMUninst.exe 122.9 KB 22 Oct 2001
MESetup.dat 233.5 KB 9 Oct 2001
Setup.exe 200.7 KB 9 Oct 2001
VERSION.TXT 14.1 KB 26 Sep 2001
CMprop.dll 28.7 KB 17 Jan 2001
CMAUDIO.INF 60.7 KB 1 Nov 2001
cmaudio.cat 39.4 KB 2 Nov 2001
audio3d.dll 794.6 KB 11 Jan 2001
CMUninst.dat 122.9 KB 22 Oct 2001
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