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USER CONFIGURABLE SETTINGS
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Function
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Jumper/Switch
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Position
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COM1 (CN4) select IRQ4 at 3F8H-3FFH
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J6
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pins 2 & 5 closed
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COM2 (CN4) select IRQ3 at 2F8H-2FFH
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J6
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pins 1 & 4, 3 & 6 closed
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LPT1 (CN5) select IRQ7 at 378H- 37FH
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J7
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pins 3 & 6 closed
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LPT2 (CN5) select IRQ5 at 278H-27FH
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J7
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pins 1 & 4, 2 & 5 closed
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Floppy drive interface address select 3F0H-3F7H
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J8
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Open
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Floppy drive interface address select 370H-377H
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J8
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Closed
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NPU disabled
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SW2/1
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On
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NPU enabled
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SW2/1
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Off
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Floppy drive select one drive
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SW2/4
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On
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Floppy drive select two drives
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SW2/4
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Off
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