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IBM PC300GL (Type 6561, 6591) - Enabling the optional WaveTable (MPU-401) upgrade in Windows NT 4.0
Applicable to: World-Wide
IBM PC300GL (6561, 6591) Windows NT 4.0 WaveTable Implementation:
After installation of the MPU-401 23-pin PLCC chip into the socket on the audio adapter card, reboot your system and follow these steps to enable wavetable functionality using the Windows NT 4.0-5.0 operating system.
1. Hit F1 to enter the Configuration/Setup Utility. Using the arrow keys, go to Advanced Setup/Plug and Play Control. Select the following settings:
Set Device Node--Enabled
Address Decode--16-bit
Plug and Play Operating System--Yes
Hit <ESC> to save settings and exit the Setup Utility
2. After booting to Windows NT, go to Control Panel/Multimedia Properties /Devices
3. Click on add and select MPU-401 Compatible Driver. When prompted "Do you want to use the current drivers?", Select New. You will install MPU401 drivers that are in your operating system installation files.
4. Specify C:/I386 and click on Browse, Select C:/I386 and click <OK>. If using the Operating System Installation CD, specify the appropriate CDROM drive for your system.
5. Confirm settings of Port 330, Interrupt 2/9 and Restart the system
6. After reboot, go to Control Panel/Multimedia Properties /MIDI
7. Select the Generic MPU-401 option which should now be visible after installation in Steps 1-5. Note that the default FM synthesis option will be listed as Crystal Audio System MIDI Out.
8. Click apply and shut down the machine with the Multimedia Properties windows open and the Generic MPU-401 option selected.
9. After the reboot, you will be able to play your desired midi-file in enhanced wavetable mode. From this point on, you can switch between FM-synthesis and wavetable by going to Multimedia Properties and selecting the desired playback mode without a system shutdown. However, you must close the MIDI file, select the mode in Multimedia Properties, and then re-open the file in order to hear it the playback mode selected.
This MPU-401 WaveTable upgrade requires an optional chip from a non-IBM source.
For instructions on obtaining the WaveTable upgrade chip, click here:- 
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Hint Category |
Audio, Windows NT | |
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Date Created |
16-06-98 | |
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Last Updated |
18-06-98 | |
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Revision Date |
16-06-99 | |
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Brand |
IBM PC | |
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Product Family |
PC 300GL | |
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Machine Type |
6561, 6591 | |
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Model |
all | |
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