Solved

Boot up error - MPU-401

Posted on 1997-06-19
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Last Modified: 2013-12-16
I have just installed Win95 over Win3.11.
Now, during the boot sequence after autoexec.bat and config.sys have executed and with the Win95 Logo screen showing I get an error message which states:-
Quote
TELE MPU-401
A configuration or hardware problem has occurred. Use the drivers option in the control panel to reconfigure the MPU-401 driver.
Unquote

If I press OK then the boot process continues and everything seems to work well.

I have looked in control panel/system/devices and am unable to see anything remotely like MPU-401 and I don't recognise this from the Win3.11 installation. I have done a search for MPU-401 on the hard drive and found nothing. Does anyone know what MPU-401 is and how I can cure this problem
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Question by:arwood
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Accepted Solution

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smeebud earned 100 total points
ID: 1748889
MPU-401 is a roland standard midi driver and was installed on I think all win 3.x.
Look in your win.ini and system.ini for any MPU lines and rem them out. Example:
[mpu.drv]
port=330
int=9
txrunstat=32
--------
MIDI=mpu.drv
---------
Search your system for MPU.* and rename any drivers .old or something you can remember.
-----------------
Also search your registry(NOT WITHOUT BACK IT UP 1ST) for mpu.drv] If found, export that key to a safe place(just in case) the deleted it.
-----------------------------------------------------------
Windows 95 Setup does not detect a Roland RAP-10 sound card configured for base I/O address
330h.

CAUSE

The RAP-10 sound card has additional features not supported by the standard Windows 95 drivers.
Additionally, its I/O resource range extends beyond the standard MPU-401 detection range of base
addresses.

Windows 95 does not normally upgrade this device and leaves the Windows 3.1 drivers in place.
However, when you install Windows 95 on a clean system the RAP-10 is detected as an MPU-401,
except when configured for I/O base address 330h.

RESOLUTION

Use the Add New Hardware tool in Control Panel to manually install the device, or change the
device's base address and then run the Add New Hardware Wizard to detect and install the device.

If you need further help, holler Help!! or reply here.
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LVL 14

Expert Comment

by:smeebud
ID: 1748890
Please fill me in on the details of you problems solution.
It's for my database.

bwil@erinet.com
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