(TXT) View Source
       
       # ADAPTEC, INC.
       
          ACB-2320B
       
          +------------------------------------------------------------+
          |------------------------------------------------------------|
          | Data bus:                | 16-bit, ISA                     |
          |--------------------------+---------------------------------|
          | Size:                    | Full-length, full-height card   |
          |--------------------------+---------------------------------|
          | Hard drives supported:   | Two RLL ESDI drives             |
          |--------------------------+---------------------------------|
          | Floppy drives supported: | None                            |
          +------------------------------------------------------------+
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |                 Function                  |    Location    |
          |-------------------------------------------+----------------|
          | 20-pin data cable connector-drive 0       |       J1       |
          |-------------------------------------------+----------------|
          | 20-pin data cable connector-drive 1       |       J2       |
          |-------------------------------------------+----------------|
          | 34-pin control cable connector-hard drive |       J3       |
          |-------------------------------------------+----------------|
          | 4-pin connector-drive active LED          |       J4       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |            Function             |  Location   |  Setting   |
          |---------------------------------+-------------+------------|
          | » | Hard drive address 1F0-1F7h | J5/jumper 1 |    open    |
          |---+-----------------------------+-------------+------------|
          |   | Hard drive address 170-177h | J5/jumper 1 |   closed   |
          |---+-----------------------------+-------------+------------|
          | » | Zero wait state enabled     | J5/jumper 3 |    open    |
          |---+-----------------------------+-------------+------------|
          |   | Zero wait state disabled    | J5/jumper 3 |   closed   |
          |---+-----------------------------+-------------+------------|
          | » | Read ahead cache enabled    | J5/jumper 5 |    open    |
          |---+-----------------------------+-------------+------------|
          |   | Read ahead cache disabled   | J5/jumper 5 |   closed   |
          |---+-----------------------------+-------------+------------|
          | » | Hard Drive Interrupt is     |     J12     | pins 1 & 2 |
          |   | IRQ14                       |             |   closed   |
          |---+-----------------------------+-------------+------------|
          |   | Hard Drive Interrupt is     |     J12     | pins 2 & 3 |
          |   | IRQ15                       |             |   closed   |
          |---+-----------------------------+-------------+------------|
          |   | Not used                    |     J12     | pins 3 & 4 |
          |   |                             |             |    open    |
          |---+-----------------------------+-------------+------------|
          | » | BIOS address C800h          |     J13     | pins 1 & 2 |
          |   |                             |             |   closed   |
          |---+-----------------------------+-------------+------------|
          |   | BIOS address CC00h          |     J13     | pins 2 & 3 |
          |   |                             |             |   closed   |
          |---+-----------------------------+-------------+------------|
          |   | BIOS disabled               |     J13     |    open    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               MISCELLANEOUS TECHNICAL NOTES                |
          |------------------------------------------------------------|
          |            J5/jumpers 2, 4, 6 & 7 are Not used.            |
          +------------------------------------------------------------+