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FD850MEX (CDXT003FD)
NEC TECHNOLOGIES, INC.
FD850MEX (CDXT003FD)
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Card Type
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Hard drive controller
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Hard Drives supported
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Up to 7 SCSI devices
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Floppy drives supported
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None
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Data Bus
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8-bit ISA
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Card Size
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Half-length, full-height
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CONNECTIONS
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Function
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Label
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Function
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Label
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50-pin SCSI connector - internal
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J2
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25-pin SCSI connector - external
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P1
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USER CONFIGURABLE SETTINGS
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Function
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Label
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Position
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Zero wait state disabled
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W5
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Open
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Zero wait state enabled
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W5
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Closed
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MEMORY ADDRESS SELECTION
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Setting
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W1
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W2
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W3
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CA000h
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Open
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Open
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Pins 1 & 2, 3 & 4 closed
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C8000h
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Closed
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Open
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Pins 1 & 2, 3 & 4 closed
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CE000h
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Open
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Closed
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Pins 1 & 2, 3 & 4 closed
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DE000h
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Closed
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Closed
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Pins 1 & 2, 3 & 4 closed
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E8000h
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Open
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Open
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Pins 1 & 3, 2 & 4 closed
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EC000h
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Open
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Closed
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Pins 1 & 3, 2 & 4 closed
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INTERRUPT SELECTION
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Setting
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W6(pins 1 & 2)
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W7(pins 2 & 3)
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IRQ3
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Closed
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Open
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IRQ5
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Open
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Closed
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