WESTERN DIGITAL CORPORATION

WD1003-WA2

Chipset                 Western Digital
Data Bus                16-bit ISA
Card Size               Full height, three-quarters length
Hard Drives Supported   Two ST506/412(MFM) devices
Floppy Drives Supported Two 360KB or 1.2MB drives

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                                CONNECTIONS

         Function           Label            Function             Label

  34-pin cable connector      J1       34-pin control cable        J5
  - floppy drive                       connector - hard drive

  20-pin data cable           J3       2-pin drive active LED      J6
  connector - drive 2

  20-pin data cable           J4
  connector - drive 1

                        USER CONFIGURABLE SETTINGS

                  Setting                       Label        Position

  »   Hard drive interface supports all          E7          Pins 1 & 2
      standard transfer rates                                 closed

      Hard drive interface does not              E7          Pins 2 & 3
      support 300Kbps transfer rate                           closed

               BASE I/O ADDRESS SELECTION

          Setting                       E1

          Primary            Pins 2 & 3, 5 & 6 closed

         Secondary           Pins 1 & 2, 4 & 5 closed