The Plug-N-Play MPU-401 is an audio device manufactured by OPTi. This driver fixes problems with no sound or static or distorted sound, and can unlock advanced features of your audio device. This driver - "opti931_complete.zip" - has been downloaded 4,923 times and is rated 3 out of 5 stars based on 18 reviews. It is compatible with PCs running Windows XP, among other operating systems. The total disk space used for this update is 1.5 MB.
OPTI931
Communications Port
OPTi Plug-N-Play Device
OPTi Plug-N-Play Joystick Controller
OPTi Plug-N-Play MPU-401
OPTi Plug-N-Play Sound System
Standard IDE/ESDI Hard Disk Controller
Windows 2003, Windows XP, Windows 2000, Windows NT4, Windows ME, Windows 98SE, Windows 98, Windows 95
opti931_complete.zip (1.5 MB)
All windows, dos, and os2 drivers
colin (DG Member) on 14-Dec-2002
To get the OPTi Plug-N-Play 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 OPTi Plug-N-Play 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 OPTi Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.
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 |
|---|---|---|
| opti931_complete/win9x/Sndm401p.drv | 9.2 KB | 11 Feb 1997 |
| opti931_complete/win9x/Snd931p.inf | 13.9 KB | 27 Aug 1997 |
| opti931_complete/win9x/Rm93xdrv.dat | 1.4 KB | 25 Jul 1997 |
| opti931_complete/win9x/Sndopl3p.drv | 18.6 KB | 11 Feb 1997 |
| opti931_complete/win9x/Adsrom.bin | 401 bytes | 11 Feb 1997 |
| opti931_complete/win9x/Sndm401p.vxd | 13.4 KB | 11 Feb 1997 |
| opti931_complete/win9x/optupdat.inf | 931 bytes | 29 Aug 1997 |
| opti931_complete/win9x/Mbsrom.bin | 386 bytes | 11 Feb 1997 |
| opti931_complete/win9x/Rm93xdrv.exe | 170.5 KB | 22 Jul 1997 |
| opti931_complete/win9x/Snd931p.drv | 62.1 KB | 11 Aug 1997 |
| opti931_complete/win9x/Sndtune.exe | 16.7 KB | 13 Feb 1997 |
| opti931_complete/win9x/Snd_aux.inf | 2.9 KB | 11 Feb 1997 |
| opti931_complete/win9x/Snd931p.vxd | 35.5 KB | 14 Aug 1997 |
| opti931_complete/winNT_2K_XP/Readme.txt | 9.4 KB | 11 Mar 2002 |
| opti931_complete/winNT_2K_XP/SND93X.SYS | 90.4 KB | 5 Dec 1996 |
| opti931_complete/winNT_2K_XP/SND3INIT.SYS | 11.7 KB | 28 Oct 1996 |
| opti931_complete/winNT_2K_XP/Disk1 | 3 bytes | 11 Feb 1997 |
| opti931_complete/winNT_2K_XP/MIDIMAP.CFG | 18.2 KB | 2 Oct 1996 |
| opti931_complete/winNT_2K_XP/SND93X.DLL | 109.1 KB | 5 Dec 1996 |
| opti931_complete/winNT_2K_XP/OEMSETUP.INF | 272 bytes | 11 Mar 2002 |
| opti931_complete/os2/Opti.ini | 94 bytes | 18 Oct 1996 |
| opti931_complete/os2/Init931.sys | 13.9 KB | 17 Apr 1997 |
| opti931_complete/os2/Dialog.dll | 65.8 KB | 16 Apr 1997 |
| opti931_complete/os2/Snd931.sys | 26.3 KB | 21 Mar 1997 |
| opti931_complete/os2/Mcicda.drv | 13.8 KB | 10 Mar 1992 |
| opti931_complete/os2/Wininst.dll | 67.0 KB | 22 Feb 1995 |
| opti931_complete/os2/Vsnd931d.386 | 19.9 KB | 11 Oct 1996 |
| opti931_complete/os2/Qsnd931.exe | 21.9 KB | 21 Mar 1997 |
| opti931_complete/os2/Opti.scr | 5.3 KB | 12 Mar 1997 |
| opti931_complete/os2/Opl3.sys | 23.9 KB | 10 Feb 1995 |
| opti931_complete/os2/Mixer_ix.exe | 44.0 KB | 1 Jul 1996 |
| opti931_complete/os2/Pnp931.sys | 10.2 KB | 4 Mar 1997 |
| opti931_complete/os2/Timer0.sys | 3.0 KB | 9 Aug 1996 |
| opti931_complete/os2/Minstall.exe | 226.8 KB | 31 Jan 1995 |
| opti931_complete/os2/Opaudres.dll | 1.6 KB | 29 Aug 1995 |
| opti931_complete/os2/Vsnd931.sys | 7.7 KB | 7 Mar 1997 |
| opti931_complete/os2/Mix931.ini | 840 bytes | 3 Sep 1996 |
| opti931_complete/os2/Cardinfo.dll | 2.1 KB | 14 Apr 1997 |
| opti931_complete/os2/Midimap.cfg | 18.2 KB | 5 Nov 1996 |
| opti931_complete/os2/Control.scr | 4.1 KB | 20 Feb 1997 |
| opti931_complete/os2/Optikb.dll | 4.4 KB | 6 Aug 1996 |
| opti931_complete/os2/Clock01.sys | 4.0 KB | 12 Aug 1996 |
| opti931_complete/os2/Clock02.sys | 4.1 KB | 12 Aug 1996 |
| opti931_complete/os2/Readme.1st | 14.8 KB | 21 Apr 1997 |
| opti931_complete/os2/Snd931.drv | 87.8 KB | 5 Mar 1997 |
| opti931_complete/os2/Msmixmgr.dll | 12.7 KB | 15 Nov 1993 |
| opti931_complete/os2/Winres.dll | 1.5 KB | 14 Apr 1997 |
| opti931_complete/dos_win31/Readme.txt | 11.3 KB | 15 May 1997 |
| opti931_complete/dos_win31/Windrv.z | 74.8 KB | 3 Jun 1997 |
| opti931_complete/dos_win31/Rm93xdrv.dat | 1.4 KB | 25 Jul 1997 |
| opti931_complete/dos_win31/Setup.ini | 52 bytes | 11 Feb 1997 |
| opti931_complete/dos_win31/Config.z | 188.5 KB | 5 Mar 1997 |
| opti931_complete/dos_win31/Setup.pkg | 530 bytes | 11 Feb 1997 |
| opti931_complete/dos_win31/Setup.dat | 1.3 KB | 27 Aug 1997 |
| opti931_complete/dos_win31/Volume.cfg | 62 bytes | 11 Feb 1997 |
| opti931_complete/dos_win31/Adsrom.bin | 401 bytes | 11 Feb 1997 |
| opti931_complete/dos_win31/Tools.z | 151.9 KB | 9 Apr 1997 |
| opti931_complete/dos_win31/Setup.inf | 1.5 KB | 21 Jan 1997 |
| opti931_complete/dos_win31/Setup.exe | 47.6 KB | 11 Feb 1997 |
| opti931_complete/dos_win31/Mix931.ini | 944 bytes | 14 May 1997 |
| opti931_complete/dos_win31/_setup.lib | 22.6 KB | 11 Feb 1997 |
| opti931_complete/dos_win31/Setup.ins | 10.0 KB | 23 Feb 1997 |
| opti931_complete/dos_win31/Sound16.cfg | 1.1 KB | 2 Sep 1997 |
| opti931_complete/dos_win31/Install.dat | 8.8 KB | 20 Feb 1997 |
| opti931_complete/dos_win31/Mbsrom.bin | 386 bytes | 11 Feb 1997 |
| opti931_complete/dos_win31/Rm93xdrv.exe | 170.5 KB | 22 Jul 1997 |
| opti931_complete/dos_win31/Config.txt | 3.5 KB | 11 Feb 1997 |
| opti931_complete/dos_win31/Mixer.cfg | 407 bytes | 11 Feb 1997 |
| opti931_complete/dos_win31/Unistall.z | 485 bytes | 11 Feb 1997 |
| opti931_complete/dos_win31/_setup.dll | 10.8 KB | 11 Feb 1997 |
| opti931_complete/dos_win31/_inst16.ex_ | 276.3 KB | 11 Feb 1997 |
| opti931_complete/dos_win31/Sndtune.exe | 16.7 KB | 13 Feb 1997 |
| opti931_complete/dos_win31/Disk1.id | 3 bytes | 11 Feb 1997 |
| opti931_complete/dos_win31/Winapp.z | 59.1 KB | 16 Mar 1997 |