The CMI8738/C3DX PCI MPU-401 is an audio device manufactured by C-Media. This driver fixes problems with no sound or static or distorted sound, and can unlock advanced features of your audio device. This driver - "8738.zip" - has been downloaded 46,043 times and is rated 5 out of 5 stars based on 221 reviews. Visitors have successfully installed this driver on PCs running Windows 7 and Windows XP. The total disk space used for this update is 7.3 MB.
C-Media PCI Audio Legacy Device
CMI8738/C3DX PCI Audio Device
CMI8738/C3DX PCI MPU-401
CMI8738/C3DX PCI game port
DOS Mode MPU-401 Emulator
Windows 2003, Windows XP, Windows 2000, Windows NT4, Windows ME, Windows 98SE, Windows 98, Windows 95
5.12.01.0622 (2001-05-29) via .inf
5.12.01.0630 (2001-11-30) via .inf
For M765LMRE-H Integrated Sound Card GfXcel mainboard
Rafael Puglianini (DG Member) on 26-Apr-2008
Already tried it? Give your review.
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The following files are found inside the driver download file.
|8738/WinXP/CMAUDIO.INF||63.2 KB||30 Nov 2001|
|8738/WinXP/CMNprop.dll||28.7 KB||16 Oct 2001|
|8738/WinXP/CMUninst.dat||122.9 KB||22 Oct 2001|
|8738/WinXP/CMUninst.exe||122.9 KB||22 Oct 2001|
|8738/WinXP/CMprop.dll||28.7 KB||17 Jan 2001|
|8738/WinXP/CRLDS3D.DLL||766.0 KB||20 Oct 2000|
|8738/WinXP/MESetup.dat||933.9 KB||19 Nov 2001|
|8738/WinXP/Mixer.exe||1.2 MB||22 Oct 2001|
|8738/WinXP/Setup.exe||491.5 KB||16 Nov 2001|
|8738/WinXP/W2KSetup.dat||925.7 KB||19 Nov 2001|
|8738/WinXP/audio3d.dll||794.6 KB||11 Jan 2001|
|8738/WinXP/cmaudio.cat||36.5 KB||4 Dec 2001|
|8738/WinXP/cmaudio.sys||280.8 KB||30 Oct 2001|
|8738/WinXP/setup.ini||428 bytes||11 Aug 2001|
|8738/nt40/drv/CM-PCI.DLL||72.7 KB||4 Sep 1999|
|8738/nt40/drv/CMPCI.SYS||61.9 KB||16 May 2001|
|8738/nt40/drv/DISK1||55 bytes||25 Apr 1999|
|8738/nt40/drv/OEMSETUP.INF||263 bytes||3 May 1999|
|8738/nt40/drv/readme.txt||1.0 KB||3 Jul 1999|
|8738/nt40/drv/release.txt||694 bytes||25 May 2001|
|8738/w2k-me/drv/CMAUDIO.INF||20.4 KB||8 Jun 2001|
|8738/w2k-me/drv/CMAUDIO.SYS||270.7 KB||29 May 2001|
|8738/w2k-me/drv/CMNprop.dll||28.7 KB||14 May 2001|
|8738/w2k-me/drv/CMprop.dll||28.7 KB||17 Jan 2001|
|8738/w2k-me/drv/CRLDS3D.DLL||766.0 KB||20 Oct 2000|
|8738/w2k-me/drv/Mixer.exe||1.1 MB||11 Jun 2001|
|8738/w2k-me/drv/VERSION.TXT||9.1 KB||21 May 2001|
|8738/w2k-me/drv/audio3d.dll||794.6 KB||11 Jan 2001|
|8738/w2k-me/drv/cmaudio.cat||25.3 KB||1 Jun 2001|
|8738/w2k-me/drv/mixerdef.ini||4.3 KB||11 Jun 2001|
|8738/w95-98/drv/95/8738note.txt||8.8 KB||1 Jun 2001|
|8738/w95-98/drv/95/ASIO8738.DLL||61.4 KB||8 May 2000|
|8738/w95-98/drv/95/C3D.DLL||786.4 KB||22 Jun 2000|
|8738/w95-98/drv/95/CMAUDIO.VXD||281.7 KB||22 May 2001|
|8738/w95-98/drv/95/CMMPUPCI.DRV||9.4 KB||15 Sep 2000|
|8738/w95-98/drv/95/CMPCI95.DRV||59.0 KB||31 May 2001|
|8738/w95-98/drv/95/CMSWMPU.VXD||14.5 KB||2 Jun 2000|
|8738/w95-98/drv/95/CMSYNTH.DRV||19.4 KB||1 Jun 2000|
|8738/w95-98/drv/95/CMedia.dll||77.8 KB||7 Nov 2000|
|8738/w95-98/drv/95/MSANALOG.VXD||12.1 KB||5 May 1999|
|8738/w95-98/drv/95/MSJSTICK.DRV||7.7 KB||25 Jul 2000|
|8738/w95-98/drv/95/Mixer.exe||835.6 KB||5 Jun 2001|
|8738/w95-98/drv/95/PARSEDLS.EXE||45.1 KB||1 Jun 2001|
|8738/w95-98/drv/95/SETAUDIO.COM||3.6 KB||26 May 1999|
|8738/w95-98/drv/95/SNDVOL32.CNT||392 bytes||11 Jul 1995|
|8738/w95-98/drv/95/SNDVOL32.EXE||54.8 KB||25 Jun 1999|
|8738/w95-98/drv/95/VJOYD.VXD||35.9 KB||28 Jul 2000|
|8738/w95-98/drv/95/cmpci032.inf||19.1 KB||6 Jun 2001|
|8738/w95-98/drv/95/mixerdef.ini||4.3 KB||11 Jun 2001|
|8738/w95-98/drv/98/8738note.txt||8.8 KB||1 Jun 2001|
|8738/w95-98/drv/98/ASIO8738.DLL||61.4 KB||8 May 2000|
|8738/w95-98/drv/98/C3D.DLL||786.4 KB||22 Jun 2000|
|8738/w95-98/drv/98/CMAUDIO.VXD||281.7 KB||22 May 2001|
|8738/w95-98/drv/98/CMMPUPCI.DRV||9.4 KB||15 Sep 2000|
|8738/w95-98/drv/98/CMPCI95.DRV||59.0 KB||31 May 2001|
|8738/w95-98/drv/98/CMSWMPU.VXD||14.5 KB||2 Jun 2000|
|8738/w95-98/drv/98/CMSYNTH.DRV||19.4 KB||1 Jun 2000|
|8738/w95-98/drv/98/CMedia.dll||77.8 KB||7 Nov 2000|
|8738/w95-98/drv/98/MSANALOG.VXD||12.1 KB||5 May 1999|
|8738/w95-98/drv/98/MSJSTICK.DRV||2.4 KB||5 May 1999|
|8738/w95-98/drv/98/Mixer.exe||835.6 KB||5 Jun 2001|
|8738/w95-98/drv/98/PARSEDLS.EXE||45.1 KB||1 Jun 2001|
|8738/w95-98/drv/98/SETAUDIO.COM||3.6 KB||26 May 1999|
|8738/w95-98/drv/98/SNDVOL32.CNT||392 bytes||11 Jul 1995|
|8738/w95-98/drv/98/SNDVOL32.EXE||54.8 KB||25 Jun 1999|
|8738/w95-98/drv/98/VJOYD.VXD||35.9 KB||5 May 1999|
|8738/w95-98/drv/98/cmpci032.inf||19.0 KB||6 Jun 2001|
|8738/w95-98/drv/98/mixerdef.ini||4.3 KB||11 Jun 2001|
To get the CMI8738/C3DX PCI MPU-401 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 CMedia CMI8738/C3DX PCI MPU-401 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 CMedia 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 CMedia website. Most major device manufacturers update their drivers regularly.
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.
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
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.