ADAPTEC, INC.

ACB-2370C, ACB-2372C

 Data bus:                  16-bit, ISA

 Size:                      Full-length, full-height card

 Hard drives supported:     Two RLL ST506 drives

 Floppy drives supported:   ACB-2370C: None

                            ACB-2372C: Two 360KB, 720KB, 1.2MB, or 1.44MB

[Image]

                           CONNECTIONS

                  Function                        Location

  34-pin data cable connector-floppy drive           J1

  20-pin data cable connector-drive 1                J3

  20-pin data cable connector-drive 0                J4

  34-pin control cable connector-hard drive          J5

  3-pin connector-drive active LED                   J6

                        USER CONFIGURABLE SETTINGS

               Function
                                            Location
                                                              Setting

  »
      Hard drive port address
      1F0-1F7h
                                              J2-1
                                                                open


      Hard drive port address
      170-177h
                                              J2-1
                                                               closed

  »
      Not used
                                              J2-2
                                                                open

  »
      Zero wait state disabled
                                              J2-3
                                                               closed


      Zero wait state enabled
                                              J2-3
                                                                open

  »
      16 m sec step rate and
      recalibrate to 0
                                              J2-4
                                                                open


      35 m sec step rate and
      recalibrate to 0 minus 1
                                              J2-4
                                                               closed

  »
      Read ahead cache enabled
                                              J2-5
                                                                open


      Read ahead cache disabled
                                              J2-5
                                                               closed

  »
      Not used
                                              J2-6
                                                                open

  »
      Not used
                                              J2-7
                                                                open

  »
      BIOS address C800h
                                               J7
                                                             pins 1 & 2
                                                               closed


      BIOS address CC00h
                                               J7
                                                             pins 2 & 3
                                                               closed


      BIOS disabled
                                               J7
                                                                open

  »
      Floppy drive port address
      3F0-3F7h
                                               J8
                                                                open


      Floppy drive port address
      370-377h
                                               J8
                                                               closed

  »
      Floppy drive enabled
                                               J9
                                                                open


      Floppy drive disabled
                                               J9
                                                               closed