2100  (250-1624)          BOCA Multi I/O Board         Faxback Doc. # 15814

The BOCA IDE Controller supports two IDE hard drives and two diskette
drives.

Features Include:

    Diskette support for both 5.25-inch (360K and 1.2 MB) and

    3.5-inch (720K and 1.44MB)

    a 16-bit interface

    Connector for hard drive LED

    Hard drive primary/secondary selection and enable/disable

Before going any further, please examine the IDE Controller for any visible
damage which may have occurred during shipment.  If damage exists or if any
items appear to be missing, please contact the retailer from whom the IDE
Controller was purchased.

PRIMARY/SECONDARY DRIVE ADDRESSES

The primary and secondary addressing jumper block is labelled J7 and is
used for both the hard drive interface (HDC) and floppy drive controller
(FDC).  Primary addresses are set as shown below.  J7 would be configured
as above if the IDE PLUS were the first or only hard and floppy drive
controller in the system.

            40-pin cable to             34-pin cable to
               IDE drive                  floppy drive
            ───────────────┐            ┌─────────────────
                           │            │
            ────┐          │            │           ┌─────           ┌──
               ┌┴──────────┴┐          ┌┴───────────┴┐               │
               └────────────┘          └─────────────┘            ┌──┤
                     ││                       ││                  │  │
        PIN 1 ─┐     \/           PIN 1 ─┐    \/                  │  │
      ┌────────┼─────────────────────────┼────────────────────────┘  │
      │ J2 ┌────────────────┐     J1 ┌───────────────┐               │
      │    └────────────────┘        └───────────────┘               │
      │    IDE DRIVE                 FLOPPY DRIVE   ┌┬┬┬┬┬┬┐         │
      │                                             └┴┴┴┴┴┴┘         │
DRIVE │J6┌─┐                                                         │
 LED  │  │ │                                                         │
  ────┼> │ │              J7    ┌────┐   ┌──────────┐                │
      │  │ │             ┌──┐   │    │   │          │                │
      │  └─┘             │  │  ┌┴────┴┐  │          │                │
      │  ┌─┐          ┌> │  │  └─┬──┬─┘  │          │                │
      │  │ │          │   └──┘            │   BOCA   │    ┌┐   ┌┐     │
      │  └─┘          │        ┌─┬┬┬┐    │          │    └┘   └┘     │
      │       ┌─────┐ │   ┌┐   │ ││││    │          │                │
      │┌─┬┐   │     │ │   ││   └─┴┴┴┘    │          │   ┌┐  ┌─┐      │
      │└─┴┘   └─────┘ │   └┘   ┌────┐    └──────────┘   └┘  └─┘      │
      │               │        └────┘                                │
      │               │         ┌──┐                          ┌──────┤
      └───────────────┼─────────┘  └──────────────────────────┘      │
             ┌──┐     │                                              │
     HDC-PRI │  │   ──┘                                              └───
             ├──┤
     HDC-SEC │oo│
             ├──┤
     FDC-PRI │  │
             ├──┤
     FDC-SEC │oo│
             └──┘

Here are other common configurations:

            J7                     J7                    J7
           ┌──┐                   ┌──┐                   ┌──┐
   HDC-PRI │oo│           HDC-PRI │  │           HDC-PRI │oo│ 
           ├──┤                   ├──┤                   ├──┤
   HDC-SEC │  │           HDC-SEC │oo│           HDC-SEC │  │
           ├──┤                   ├──┤                   ├──┤
   FDC-PRI │oo│           FDC-PRI │oo│           FDC-PRI │oo│
           ├──┤                   ├──┤                   ├──┤
   FDC-SEC │  │           FDC-SEC │  │           FDC-SEC │oo│
           └──┘                   └──┘                   └──┘

   Board is used for      Primary hard drive     Secondary hard
   secondary and          with secondary         drive, but NO
   floppy support         floppy controller      additional floppy
   in the system.         support.               support is needed.
                                                 FDC is disabled.*

INSTALLATION

Follow the directions below to physically install the IDE controller in the
system.

1.  Power down the computer and remove the cover from the system.

2.  Select an empty expansion slot and remove the retaining screw and dust
    cover.  Firmly insert the IDE controller card, securing it with the
    retaining screw.

    NOTE:  Depending on the system layout and preferences, it may be easier
           to attach drive and LED cables before inserting the IDE
           Controller into the slot on the system board.

3.  Attach the Drive Activity LED cable to the J6 connector.  Attach one
    end of the 40-pin cable to the hard disk drive in the system and the
    other end to the J2 connector on the IDE Controller.  When connecting
    and configuring a second hard drive, refer to the manufacturer's
    documentation.

4.  Attach one end of the 34-pin cable to the floppy drive in the system
    and the other end to the J1 connector on the IDE Controller.

    NOTE:  When connecting cables, be sure that Pin 1 on the cable, marked
           with a colored stripe (often red), matches up with pin 1 on the
           board connector.

5.  Physical installation is complete.  Power up the system and run FDISK
    and FORMAT to prepare your hard disk drive for use.

If you connect the IDE Controller to a NEW hard drive, power up the system
and run FDISK and FORMAT to prepare your hard disk drive for use.

If you connected the IDE Controller to an EXISTING hard drive, simply power
up the system and the controller will automatically recognize the drive.


(ALL-06/29/95)