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CONNECTIONS
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Function
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Location
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25 pin parallel port - external
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CN1
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9 pin serial port - external
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CN2
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10 pin serial port - internal
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CN3
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16 pin game port - internal
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CN4
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34 pin data cable connector - primary floppy drive interface
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CN5
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34 pin data cable connector - secondary floppy drive interface
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CN6
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40 pin connector - primary IDE(AT) interface
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CN7
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40 pin connector - secondary IDE(AT) interface
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CN8
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4 pin connector - drive active LED
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CN9
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S136x paddle card daughterboard connector
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PDL1
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USER CONFIGURABLE SETTINGS
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Function
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Location
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Setting
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» Factory configured - do not alter
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J0
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N/A
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» Floppy drive interface DSKCHG signal not intercepted
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J1
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Open
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Floppy drive interface DSKCHG signal intercepted
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J1
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Closed
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» I/O address fixed
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J2
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Closed
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I/O address relocatable
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J2
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Open
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» Primary IDE(AT) channel legacy IRQ tied to IRQ14
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J5
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Closed
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No primary IDE(AT) channel legacy IRQ tied to IRQ14
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J5
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Open
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» Primary IDE(AT) legacy ISA IRQ14 not buffered
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J6
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Open
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Primary IDE(AT) legacy ISA IRQ14 buffered
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J6
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Closed
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» Secondary IDE(AT) channel legacy IRQ tied to IRQ15
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J7
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Closed
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No secondary IDE(AT) channel legacy IRQ tied to IRQ15
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J7
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Open
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» Secondary IDE(AT) legacy ISA IRQ15 not buffered
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J8
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Open
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Secondary IDE(AT) legacy ISA IRQ15 buffered
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J8
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Closed
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» IDE(AT) interrupt native mode not utilized
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J9
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Open
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IDE(AT) interrupt native mode utilized to PCI INTA
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J9
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Closed
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» Factory configured - do not alter
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J10
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N/A
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» AT printer mode(ISA) enabled
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J11
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Open
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Normal mode enabled, floppy drive interface pin 29 grounded
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J11
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Closed
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» Floppy drive interface normal DRATE out mode select
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P1
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Pins 2 & 3 closed
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Floppy drive interface media ID input OS2 enhanced mode
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P1
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Pins 1 & 2 closed
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» Floppy drive interface I/O address 3F0h select
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P2
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Pins 2 & 3 closed
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Floppy drive interface I/O address 370h select
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P2
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Pins 1 & 2 closed
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» Floppy drive interface enabled
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P3
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Pins 2 & 3 closed
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Floppy drive interface disabled
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P3
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Pins 1 & 2 closed
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» Factory configured - do not alter
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T0
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N/A
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» ISA AT printer mode enabled
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T1
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Open
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PS/2 bi-directional printer mode enabled
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T1
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Closed
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» Parallel port interrupt IRQ7 select
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T2
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Closed
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Parallel port interrupt disabled
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T2
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Open
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» Serial port 1 interrupt IRQ4 select
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T4
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Closed
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Serial port 1 interrupt disabled
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T4
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Open
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» Serial port 2 interrupt IRQ3 select
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T5
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Closed
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Serial port 2 interrupt disabled
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T5
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Open
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» Game port enabled
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T6
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Closed
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Game port disabled
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T6
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Open
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