Aopen Cobra AW840 Driver Download (Official)

Aopen Drivers

The Cobra AW840 is an audio device manufactured by Aopen. This driver fixes problems with no sound or static or distorted sound, and can unlock advanced features of your audio device. This update - "" - has an average rating of 5 out of 5 stars based on 26 reviews, and has been downloaded 639 times. Visitors have successfully installed this driver on PCs running Windows XP. The total disk space used for this update is 2.3 MB.

26 Ratings (see all reviews)

Supported Models

Cobra AW840

CMI8738/C3DX PCI Audio Device




Supported Operating Systems

Windows XP

File Name


R3.30 (17-Dec-2001) (2001-11-01) via .inf

Additional Notes

Cobra AW840

Drivers for WinXP

Uploaded By

Sivakumar (DG Staff Member) on 26-May-2006

Ratings & Reviews

See all Aopen Cobra AW840 ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
AW840_XP/CMAUDIO.INF 60.7 KB 1 Nov 2001
AW840_XP/CMNprop.dll 28.7 KB 16 Oct 2001
AW840_XP/CMUninst.dat 122.9 KB 22 Oct 2001
AW840_XP/CMUninst.exe 122.9 KB 22 Oct 2001
AW840_XP/CMprop.dll 28.7 KB 17 Jan 2001
AW840_XP/CRLDS3D.DLL 766.0 KB 20 Oct 2000
AW840_XP/MESetup.dat 233.5 KB 9 Oct 2001
AW840_XP/Mixer.exe 1.2 MB 22 Oct 2001
AW840_XP/Setup.exe 200.7 KB 9 Oct 2001
AW840_XP/VERSION.TXT 14.1 KB 26 Sep 2001
AW840_XP/W2KSetup.dat 184.3 KB 9 Oct 2001
AW840_XP/audio3d.dll 794.6 KB 11 Jan 2001
AW840_XP/ 39.4 KB 2 Nov 2001
AW840_XP/cmaudio.sys 280.8 KB 30 Oct 2001
AW840_XP/setup.ini 428 bytes 11 Aug 2001

How to Update Cobra AW840 Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the Cobra AW840 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 Aopen Cobra AW840 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 Aopen 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 Aopen 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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