OPTi Plug-N-Play MPU-401 Driver Download
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 4,919 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.
Supported Models
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
Manufacturers
Supported Operating Systems
Windows 2003, Windows XP, Windows 2000, Windows NT4, Windows ME, Windows 98SE, Windows 98, Windows 95
File Name
Additional Notes
All windows, dos, and os2 drivers
Uploaded By
colin (DG Member) on 14-Dec-2002
Ratings & Reviews
Related Driver Updates
Driver Contents File List
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 |
How to Update OPTi Plug-N-Play MPU-401 Device Drivers Quickly & Easily
Step 1 - Download Your Driver
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.
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.