GIGA-BYTE TECHNOLOGY, INC.

GA-403F

  Data bus:                32-bit, VL-bus

  Size:                    Three/quarter-length, full-height card

  Hard drive supported:    Up to seven SCSI devices

  Floppy drives            Two 360KB, 720KB, 1.2MB or 1.44MB drives
  supported:

[Image]

                              CONNECTIONS

                    Function                           Location

  4-pin connector - drive active LED                      J1

  34-pin control cable connector - floppy drive           J2

  50-pin SCSI connector - internal                        J6

  50-pin SCSI connector - external                        J9

                        USER CONFIGURABLE SETTINGS

                  Function                     Location        Setting

  »   Main board supports VL-bus                 JB1          pins 2 & 3
      ID3/synchronize local ready delay                        closed
      function.

      Main board does not support VL-bus         JB1          pins 1 & 2
      ID3/synchronize local ready delay                        closed
      function.

  »   Floppy controller enabled                   J5           closed

      Floppy controller disabled                  J5            open

  »   Floptical/SCSI floppy and HD > 1GB          J8            open
      support disabled

      Floptical/SCSI floppy and HD > 1GB          J8           closed
      support enabled

  »   SCSI BIOS enabled                         SW1/2            on

      SCSI BIOS disabled                        SW1/2            off

  »   BIOS floptical/SCSI floppy support        SW1/7            off
      disabled

      BIOS floptical/SCSI floppy support        SW1/7            on
      enabled

  »   Floptical/SCSI floppy and HD > 1GB        SW1/8            off
      support disabled

      Floptical/SCSI floppy and HD > 1GB        SW1/8            on
      support enabled

                        USER CONFIGURABLE SETTINGS

                 Function                     Location        Setting

  »   SCSI synchronous negotiation             SW1/9             on
      enabled

      SCSI synchronous negotiation             SW1/9            off
      disabled

  »   SCSI disconnect enabled                  SW1/10            on

      SCSI disconnect disabled                 SW1/10           off

  Note:Manufacturer’s documentation concerning the functions of SW1/7 &
  SW1/8 are conflicting. It is

  recommended that the user not alter factory-configured settings.

                               SCSI ADDRESS

             Base Address                             SW1/1

  »                 340h                                on

                    140h                               off

                               BIOS ADDRESS

           Address                   SW1/3                  SW1/4

  »          DC000h                    on                     on

             D8000h                   off                     on

             CC000h                    on                    off

             C8000h                   off                    off

                             INTERRUPT SELECT

    IRQ      SW1/5   SW1/6   J4/jumper   J4/jumper   J4/jumper   J4/jumper
                                 A           B          C           D

  »   IRQ11   off     on       open        open       closed       open

      IRQ9    off     off     closed       open        open        open

      IRQ10   on      off      open       closed       open        open

      IRQ12   on      on       open        open        open        open