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MPU-401 Windows 95 Supplemental Notes
©1996 Roland Corporation U.S. Installing MPU-401 Compatible Cards in Windows 95
Page 5 of 8
MPU-401AT
IRQ: There is a set of jumpers labeled SW1 on the MPU-401AT card. With the connectors of
the card facing down and to the right, the SW1 jumpers are located near the bottom left of the
MPU-401AT. Move the jumper to the desired location using this chart to select an interrupt:
IRQ
7
6
5
4
3 2/9
Port Address: There is a set of switches labeled SW2 to the right of the SW1 interrupt jumpers
on the MPU-401AT. You will find an OFF and ON position for each of the switches. Move the
switches to the desired locations using this chart to select the address:
300 320 330
1
2
3
4
1
2
3
4
1
2
3
4
ON
↑
↑
↑
OFF
↓
↓
↓
↓
↓
↓
↓
↓
↓
332 334 336
1
2
3
4
1
2
3
4
1
2
3
4
ON
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
OFF
↓
↓
MIDI Card Installation
Note: Since computers vary dramatically by manufacturer and type, it is a good idea to consult
your computer manufacturer before installation. If you are not comfortable installing the card,
please consult a local computer technician.
MPU-401AT Note
: If you are using an MPU-401AT with a daughterboard, you will need to
attach the daughterboard to the card. The MPU-401AT has a connector labeled CN1. This
connector will attach to the equivalent connector on the daughterboard. Two of the four plastic
spacers on the daughterboard will fit into holes on the MPU-401AT.
Now that the card is set to the appropriate IRQ and port address settings, it must be physically
installed in the computer. Remove the cover of your computer - this will typically require a
screwdriver and/or key. Slide the card into an available slot in the PC. Be careful not to drop
anything like a screwdriver or other tool in your computer. Use a screw to fasten the card
firmly in your computer. Replace the computer’s cover.
III. Installing Windows 95 Drivers
