Data bus: 16-bit, PC/AT
Size: Full-length, full-height card
Hard drives supported: Two ESDI drives
Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB
Maximum heads/cyl.: 16 heads and 1024 cylinders
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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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JP1
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open
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Factory configured - do not alter
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JP2
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open
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Factory configured - do not alter
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JP3
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closed
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Reserved
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JP4
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pins 1 & 2 open
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Cache enabled
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JP4
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pins 3 & 4 open
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Cache disabled
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JP4
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pins 3 & 4 closed
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32KB cache RAM Capacity
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JP5
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pins 1 & 2 closed
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8KB cache RAM Capacity
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JP5
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pins 2 & 3 closed
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Must be closed to enabled 8K/32K Data Buffer
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JP6
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pins 1 & 2 closed
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Reserved, must be left "open"
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JP6
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pins 2 & 3 closed
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Factory use only (hard-wired)
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JP7
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pins 1 & 2 closed
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Reserved
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JP9
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open
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Supports a third floppy on DS2 with a twisted cable
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JP11/jumper 1
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open
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Supports a third floppy on DS4 with a straight cable
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JP11/jumper 1
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closed
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Floppy drive 1 is a AT type drive (5.25" or 3.5")
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JP11/jumper 2
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open
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Floppy drive 1 is a 3.5" PS/2 type drive
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JP11/jumper 2
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closed
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Floppy drive 0 is a AT type drive (5.25" or 3.5")
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JP11/jumper 3
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open
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Floppy drive 0 is a 3.5" PS/2 type drive
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JP11/jumper 3
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closed
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Floppy drive port address is 3F0-3F7h
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JP11/jumper 4
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open
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Floppy drive port address is 370-377h
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JP11/jumper 4
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closed
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Single speed floppy drive supported
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JP11/jumper 5
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open
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Dual speed floppy drive supported
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JP11/jumper 5
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closed
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Floppy drive Precomp. is scaled by data rate:
500KHz=125ns; 300KHz=208ns; 250KHz=250ns
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JP11/jumper 6
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open
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Floppy drive Precomp. is 125ns.
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JP11/jumper 6
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closed
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Hard drive port address is 1F0-1F7h
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JP12
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open
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Hard drive port address is 170-177h
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JP12
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closed
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Chassis ground not connected to logic ground
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JP16
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open
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Chassis ground is connected to logic ground
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JP16
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closed
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Floppy drive enabled
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JP17
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closed
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Floppy drive disabled
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JP17
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open
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Hard Drive Interrupt is IRQ14
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JP20
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pins 2 & 3 closed
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Hard Drive Interrupt is IRQ15
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JP20
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pins 1 & 2 closed
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