ZENTECH CORPORATION
===================

   ZEN-160B

   Processor         80286                                        
   Processor Speed   6/12MHz                                      
   Chip Set          Suntac                                       
   Max. onboard DRAM 4MB                                          
   Cache             None                                         
   BIOS              Unknown                                      
   Dimensions        330mm x 218mm                                
   I/O Options       None                                         
   NPU Options       80287                                        

<gopher://bitreich.org/I/th99/m/U-Z/31638-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose        | Location | Purpose             | Location |
   |----------------+----------+---------------------+----------|
   | Turbo Switch   |   JP4    | Speaker             |   J19    |
   |----------------+----------+---------------------+----------|
   | Turbo LED      |   JP5    | Power LED & keylock |   J20    |
   |----------------+----------+---------------------+----------|
   | Reset switch   |   JP6    | External battery    |   J21    |
   |------------------------------------------------------------|
   | Note:Locations of connectors may vary per system board.    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |           Function            | Jumper/Switch |  Position  |
   |-------------------------------+---------------+------------|
   |>> | Factory configured - do   |      JP2      |    N/A     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |      JP7      |    N/A     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Wait state select 0 wait  |     JP10      |    Open    |
   |   | states                    |               |            |
   |---+---------------------------+---------------+------------|
   |   | Wait state select 1 wait  |     JP10      |   Closed   |
   |   | state                     |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Monitor type select color |      C/M      | pins 2 & 3 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | Monitor type select       |      C/M      | pins 1 & 2 |
   |   | monochrome                |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   | SW1/switch 1  |    Off     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   | SW1/switch 2  |     On     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | EMS port address select   | SW1/switch 4  |     On     |
   |   | OE8h                      |               |            |
   |---+---------------------------+---------------+------------|
   |   | EMS port address select   | SW1/switch 4  |    Off     |
   |   | O98h                      |               |            |
   |------------------------------------------------------------|
   | Note:Jumper and switch locations may vary per system       |
   | board.                                                     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |Size |Base | EMS  |  Bank 0   |  Bank 1   |SW1/6|SW1/7|SW1/8|
   |-----+-----+------+-----------+-----------+-----+-----+-----|
   |512KB|512KB| 0KB  |(18) 41256 |   NONE    | On  | On  | On  |
   |-----+-----+------+-----------+-----------+-----+-----+-----|
   |640KB|640KB| OKB  |(18) 41256 | (18) 4164 | On  | Off | On  |
   |-----+-----+------+-----------+-----------+-----+-----+-----|
   | 1MB | 1MB | OKB  |(18) 41256 |(18) 41256 | On  | Off | On  |
   |-----+-----+------+-----------+-----------+-----+-----+-----|
   | 1MB |640KB|384KB |(18) 41256 |(18) 41256 | Off | Off | On  |
   |-----+-----+------+-----------+-----------+-----+-----+-----|
   | 2MB | 2MB | 0KB  |(18) 411000|   NONE    | On  | On  | Off |
   |-----+-----+------+-----------+-----------+-----+-----+-----|
   | 2MB |640KB|1408KB|(18) 411000|   NONE    | Off | On  | Off |
   |-----+-----+------+-----------+-----------+-----+-----+-----|
   | 4MB | 4MB | 0KB  |(18) 411000|(18) 411000| On  | Off | Off |
   |-----+-----+------+-----------+-----------+-----+-----+-----|
   | 5MB |640KB|3456KB|(18) 411000|(18) 411000| Off | Off | Off |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  BIOS TYPE CONFIGURATION                   |
   |------------------------------------------------------------|
   |       Type       |        JP9         |    SW1/switch 5    |
   |------------------+--------------------+--------------------|
   |      27128       |     pins 2 & 3     |     pins 2 & 3     |
   |------------------+--------------------+--------------------|
   |      27256       |     pins 1 & 2     |     pins 1 & 2     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                I/O WAIT STATE CONFIGURATION                |
   |------------------------------------------------------------|
   |       Wait state        |        JP3        | SW1/switch 3 |
   |-------------------------+-------------------+--------------|
   |            4            | pins 2 & 3 closed |      On      |
   |-------------------------+-------------------+--------------|
   |            6            | pins 2 & 3 closed |     Off      |
   |-------------------------+-------------------+--------------|
   |    Synchronous with     | pins 1 & 2 closed |     N/A      |
   |     external clock      |                   |              |
   +------------------------------------------------------------+