Crystal Semiconductor Crystal PnP Audio System MPU-401 Compatible Driver Download

Crystal Semiconductor Drivers

The Crystal PnP Audio System MPU-401 Compatible is an audio device manufactured by Crystal Semiconductor. This driver fixes problems with no sound or static or distorted sound, and can unlock advanced features of your audio device. Visitors have downloaded this file "" 2,300 times with an aggregate rating of 5 out of 5 stars based on 20 reviews. It has been installed successfully by our users on PCs running Windows XP. The total disk space used for this update is 475.3 KB.

20 Ratings (see all reviews)

Supported Models

Crystal PnP Audio System CODEC

Crystal PnP Audio System CODEC (Needs Reboot)

Crystal PnP Audio System CODEC/Joystick

Crystal PnP Audio System Control Registers

Crystal PnP Audio System Joystick

Crystal PnP Audio System MPU-401 Compatible

Crystal PnP IDE Controller


Crystal Semiconductor

Supported Operating Systems

Windows 2003, Windows XP, Windows 2000, Windows NT4, Windows ME, Windows 98SE, Windows 98, Windows 95

File Name

Additional Notes

is work for all crystal 423x

4230 4231 4232 423.....

Uploaded By

Cocy (DG Member) on 5-Jul-2004

Most Helpful Reviews

4 of 5 people found the following review helpful:
James Quinlan
Tested on Windows 98SE
5 Mar 2007

Installation: 3 out of 5
Stability: 4 out of 5
Compatibility: 4 out of 5
"Suprisingly, this driver worked perfect in this old Gateway 2000 system that I repaired for a employee's mother. See does not have the funds to buy a new system, and only wants one to play a few older games and check email. Overall it worked pretty good and now atleast she has sound.

Definitely a retro repair, took me back 13 years from when I bought my first 66DX sy

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See all Crystal Semiconductor Crystal PnP Audio System MPU-401 Compatible ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
ENGLISH/SETUP.EXE 79.9 KB 7 Nov 1996
ENGLISH/CWD3DSND.EXE 206.8 KB 7 Nov 1996
ENGLISH/CWDFM.DRV 21.8 KB 7 Nov 1996
ENGLISH/CWDMIX.EXE 239.3 KB 7 Nov 1996
ENGLISH/CWDAUDIO.INI 774 bytes 7 Nov 1996

How to Update Crystal PnP Audio System MPU-401 Compatible Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the Crystal PnP Audio System MPU-401 Compatible 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 Crystal Semiconductor Crystal PnP Audio System MPU-401 Compatible 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 Crystal Semiconductor Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.

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.

This website is not affiliated with Crystal Semiconductor. All company names/logos are properties of their owners.
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