Aopen AS9400 Driver Download

The AS9400 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 - "winxp644.exe" - has an average rating of 5 out of 5 stars based on 43 reviews, and has been downloaded 5,585 times. Visitors have successfully installed this driver on PCs running Windows XP. The total disk space used for this update is 3.4 MB.

43 Ratings (see all reviews)
5,585 Downloads

Video Tutorial: How to Download & Install a Driver

Find All Aopen AS9400 Driver Updates

Supported Models

AW-840

AS9400

CMI8738/C3DX PCI Audio Device

Manufacturers

Aopen

CMedia

Supported Operating Systems

Windows XP

File Name

winxp644.exe (3.4 MB)

Versions

5.12.01.0644 (2002-03-28) via .inf

Additional Notes

WinXP drivers from Aopen's ftp site. A sticker on the front of the card says 'AS9400', while the model and part number on the back read 'AW-840' and '90.18610.840'

Uploaded By

scrappy (DG Member) on 30-Apr-2005

Most Helpful Reviews

4 of 5 people found the following review helpful:

Ted Miller
Tested on Windows XP

5 Feb 2007

Installation:

Stability:

Compatibility:

"The driver worked. It was the install that was a problem. The default was bogus. I suggest you first make a directory on your C drive named Drivers and put a sub folder called Audio. When you run the install just direct it to there."

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Related Driver Updates

Aopen AS9400 Driver Update Utility

Install the driver automatically

Driver Contents File List

The following files are found inside the driver download file.

Name	Size	Date
setup.ini	428 bytes	11 Aug 2001
cmaudio.dat	23.0 KB	3 Apr 2003
W2KSetup.dat	1.3 MB	19 Jan 2003
cmaudio.sys	377.4 KB	18 Nov 2002
AUDIO3D.DLL	712.7 KB	23 Nov 2001
cmiainfo.sys	3.4 KB	24 Jun 2002
CRLDS3D.DLL	766.0 KB	20 Oct 2000
MESetup.dat	1.3 MB	20 Jan 2003
CMNPROP.DLL	32.8 KB	9 Oct 2002
Setup.exe	864.3 KB	10 Jan 2003
CMUNINST.EXE	139.3 KB	11 Jul 2002
cmijack.dat	39.3 KB	28 Mar 2003
cmaudio.ini	18.2 KB	30 Oct 2002
MIXER.EXE	1.9 MB	20 Mar 2003
CMAUDIO.INF	64.4 KB	3 Apr 2003
CMAUDIO.CAT	50.8 KB	8 Apr 2003
cmijack.ini	28.2 KB	30 Oct 2002
CMUNINST.DAT	135.2 KB	11 Jul 2002

How to Update AS9400 Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the AS9400 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 AS9400 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

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