The KT4 Ultra is an audio device manufactured by MSI. This driver fixes problems with no sound or static or distorted sound, and can unlock advanced features of your audio device. This update - "cm45xp.exe" - has an average rating of 5 out of 5 stars based on 9 reviews, and has been downloaded 78 times. The uploader reports that this update will work successfully on PCs running Windows XP. The total disk space used for this update is 2.3 MB.
KT4 Ultra
CMI8738/C3DX PCI Audio Device
Windows XP
cm45xp.exe (2.3 MB)
5.12.1.642 (9-Nov-2002)
5.12.01.0642 (2002-10-15) via .inf
KT4 Ultra
Socket A (AMD K7)
C-Media CMI8738 Sound Drivers
• Remove for MS-6592 AUX/Mono IN item.
• Driver version: 5.12.1.642
krishnamoorthy (DG Staff Member) on 10-Nov-2006
To get the KT4 Ultra 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 MSI KT4 Ultra 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 MSI 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 MSI website. Most major device manufacturers update their drivers regularly.
Installing your newly downloaded driver is a straightforward process. Windows provides a dedicated tool called Device Manager for this purpose. Follow these steps to update your driver:
Access the Quick Access menu by right-clicking the Start button.
From the menu options, choose "Device Manager".
Within Device Manager, identify the device requiring the driver update.
Open the context menu for the device by right-clicking its name.
Select "Update driver" and proceed through the guided installation.
To complete the process, reboot your computer. This ensures the new driver is fully integrated into your system.
Regular driver updates contribute to optimal system performance and hardware compatibility.
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.
The following files are found inside the driver download file.
Name | Size | Date |
---|---|---|
AUDIO3D.DLL | 712.7 KB | 23 Nov 2001 |
CMAUDIO.CAT | 48.9 KB | 16 Oct 2002 |
CMAUDIO.INF | 63.7 KB | 15 Oct 2002 |
CMNPROP.DLL | 32.8 KB | 9 Oct 2002 |
CMUNINST.DAT | 135.2 KB | 11 Jul 2002 |
CMUNINST.EXE | 139.3 KB | 11 Jul 2002 |
CRLDS3D.DLL | 766.0 KB | 20 Oct 2000 |
MIXER.EXE | 1.8 MB | 9 Oct 2002 |
cmaudio.dat | 22.1 KB | 14 Oct 2002 |
cmaudio.sys | 379.9 KB | 15 Oct 2002 |
cmijack.dat | 39.0 KB | 3 Oct 2002 |