ADAPTEC, INC.

ACB-2370B

Data bus:                16-bit, ISA
Size:                    Half-length, full-height card
Hard drives supported:   Two RLL ST506 drives
Floppy drives supported: None

[Image]

                           CONNECTIONS

                  Function                        Location

  20-pin data cable connector-drive 1                J1

  20-pin data cable connector-drive 0                J2

  34-pin control cable connector-hard drive          J3

  3-pin connector-drive active LED                   J5

                        USER CONFIGURABLE SETTINGS

               Function                    Location           Setting

  »   Hard drive port address               J6 - 1              open
      1F0-1F7h

      Hard drive port address               J6 - 1             closed
      170-177h

  »   Not used                              J6 - 2              open

  »   Zero wait state disabled              J6 - 3              open

      Zero wait state enabled               J6 - 3             closed

  »   Step rate is 16 mseconds and          J6 - 4              open
      recalibrate to 0

      Step rate is 35msec. and              J6 - 4             closed
      recalibrate to 0 minus 1

  »   Read ahead cache enabled              J6 - 5              open

      Read ahead cache disable              J6 - 5             closed

  »   Not used                              J6 - 6              open

  »   Not used                              J6 - 7              open

  »   Hard drive Interrupt is IRQ14           J13            pins 1 & 2
                                                               closed

      Hard drive Interrupt is IRQ15           J13            pins 2 & 3
                                                               closed

  »   Not used                                J13            pins 3 & 4
                                                                open

  »   BIOS address C800h                      J14            pins 1 & 2
                                                               closed

      BIOS address CC00h                      J14            pins 2 & 3
                                                               closed

      BIOS disabled                           J14               open