GCH SYSTEMS, INC.
=================

   EASY DATA 386SX

   Processor        80386SX                                       
   Processor Speed  16MHz                                         
   Chip Set         Suntac                                        
   Max. Onboard     8MB                                           
   DRAM             
   Cache            None                                          
   BIOS             AMI/Award/Phoenix                             
   Dimensions       330mm x 218mm                                 
   I/O Options      Parallel port, serial port (2), floppy        
                    interface, IDE interface                      
   NPU Options      80387SX                                       

<gopher://bitreich.org/I/th99/m/E-H/30239-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose         | Location | Purpose            | Location |
   |-----------------+----------+--------------------+----------|
   | Reset switch    |    J1    | Parallel port      |    P1    |
   |                 |          | (LPT2)             |          |
   |-----------------+----------+--------------------+----------|
   | Turbo LED       |    J2    | Serial port (COM1) |    S1    |
   |-----------------+----------+--------------------+----------|
   | Turbo switch    |    J3    | Serial port (COM2) |    S2    |
   |-----------------+----------+--------------------+----------|
   | Hard drive LED  |    J4    | IDE interface      |    S3    |
   |-----------------+----------+--------------------+----------|
   | Speaker         |    J5    | Floppy interface   |    S4    |
   |-----------------+----------+--------------------+----------|
   | Power LED &     |    J6    |                    |          |
   | keylock         |          |                    |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |           Function            | Jumper/Switch |  Position  |
   |-------------------------------+---------------+------------|
   |>> | Factory configured - do   |      JP1      |    Open    |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |      JP3      |    N/A     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | BIOS type select Award    |      JP7      | pins 2 & 3 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | BIOS type select Phoenix  |      JP7      | pins 1 & 2 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |     JP11      |   Closed   |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Monitor type select color |     SW1/1     |     On     |
   |---+---------------------------+---------------+------------|
   |   | Monitor type select       |     SW1/1     |    Off     |
   |   | monochrome                |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Floppy drive enabled      |     SW1/2     |     On     |
   |---+---------------------------+---------------+------------|
   |   | Floppy drive disabled     |     SW1/2     |    Off     |
   |---+---------------------------+---------------+------------|
   |>> | Floppy drive address      |     SW1/3     |    Off     |
   |   | select primary            |               |            |
   |---+---------------------------+---------------+------------|
   |   | Floppy drive address      |     SW1/3     |     On     |
   |   | select secondary          |               |            |
   |---+---------------------------+---------------+------------|
   |>> | COM1 (S1) enabled         |     SW1/6     |     On     |
   |---+---------------------------+---------------+------------|
   |   | COM1 (S1) disabled        |     SW1/6     |    Off     |
   |---+---------------------------+---------------+------------|
   |>> | COM2 (S2) enabled         |     SW1/7     |     On     |
   |---+---------------------------+---------------+------------|
   |   | COM2 (S2) disabled        |     SW1/7     |    Off     |
   |---+---------------------------+---------------+------------|
   |>> | LPT2 (P1) enabled         |     SW1/8     |     On     |
   |---+---------------------------+---------------+------------|
   |   | LPT2 (P1) disabled        |     SW1/8     |    Off     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size  |   Bank 0    |   Bank 1   |   Bank 2   |   Bank 3   |
   |-------+-------------+------------+------------+------------|
   | 512KB | (2) 256K x  |    NONE    |    NONE    |    NONE    |
   |       |      9      |            |            |            |
   |-------+-------------+------------+------------+------------|
   |  1MB  | (2) 256K x  | (2) 256K x |    NONE    |    NONE    |
   |       |      9      |     9      |            |            |
   |-------+-------------+------------+------------+------------|
   |  2MB  | (2) 256K x  | (2) 256K x | (2) 256K x | (2) 256K x |
   |       |      9      |     9      |     9      |     9      |
   |-------+-------------+------------+------------+------------|
   |  2MB  | (2) 1M x 9  |    NONE    |    NONE    |    NONE    |
   |-------+-------------+------------+------------+------------|
   |  3MB  | (2) 256K x  | (2) 256K x | (2) 1M x 9 |    NONE    |
   |       |      9      |     9      |            |            |
   |-------+-------------+------------+------------+------------|
   |  4MB  | (2) 1M x 9  | (2) 1M x 9 |    NONE    |    NONE    |
   |-------+-------------+------------+------------+------------|
   |  5MB  | (2) 256K x  | (2) 256K x | (2) 1M x 9 | (2) 1M x 9 |
   |       |      9      |     9      |            |            |
   |-------+-------------+------------+------------+------------|
   |  8MB  | (2) 1M x 9  | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   NPU MODE CONFIGURATION                   |
   |------------------------------------------------------------|
   |        Size        |        JP2        |        JP4        |
   |--------------------+-------------------+-------------------|
   |  Synchronous with  | pins 2 & 3 closed | pins 2 & 3 closed |
   |        CPU         |                   |                   |
   |--------------------+-------------------+-------------------|
   | Asynchronous with  | pins 1 & 2 closed | pins 1 & 2 closed |
   |        CPU         |                   |                   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 ON BOARD IDE CONFIGURATION                 |
   |------------------------------------------------------------|
   |        Size        |       SW1/4        |      SW1/5       |
   |--------------------+--------------------+------------------|
   |      Enabled       |        Off         |        On        |
   |--------------------+--------------------+------------------|
   |      Disabled      |         On         |       Off        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     BIOS CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |        JP5         |        JP6         |
   |------------------+--------------------+--------------------|
   |      27256       | pins 1 & 2 closed  | pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |      27512       | pins 2 & 3 closed  | pins 2 & 3 closed  |
   +------------------------------------------------------------+