DIAMOND FLOWER, INC.
====================

   386-25UN/C

   Processor             80386DX                                  
   Processor Speed       25MHz                                    
   Chip Set              Unidentified                             
   Max. Onboard DRAM     12MB                                     
   Cache                 64KB (on external cache card)            
   BIOS                  Unidentified                             
   Dimensions            330mm x 218mm                            
   I/O Options           32-bit external cache card slot          
   NPU Options           80387/3167                               

<gopher://bitreich.org/I/th99/m/C-D/30621-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | External keyboard |    J1    | Turbo switch     |  J6 or   |
   |                   |          |                  |   J13    |
   |-------------------+----------+------------------+----------|
   | CPU clock         |    J2    | Speaker          |    J7    |
   |-------------------+----------+------------------+----------|
   | Power LED &       |    J3    | External battery |   J14    |
   | keylock           |          |                  |          |
   |-------------------+----------+------------------+----------|
   | Reset switch      |  J4 or   | 32-bit external  |    S1    |
   |                   |   J11    | cache card       |          |
   |-------------------+----------+------------------+----------|
   | Turbo LED         |    J5    |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |           Function            | Jumper/Switch |  Position  |
   |-------------------------------+---------------+------------|
   |>> | NPU type select 3167 or   |      J9       |   Closed   |
   |   | none                      |               |            |
   |---+---------------------------+---------------+------------|
   |   | NPU type select 80387     |      J9       |    Open    |
   |---+---------------------------+---------------+------------|
   |>> | Monitor type select       |      J10      |    Open    |
   |   | monochrome                |               |            |
   |---+---------------------------+---------------+------------|
   |   | Monitor type select color |      J10      |   Closed   |
   |---+---------------------------+---------------+------------|
   |>> | Battery type select       |      J12      | pins 2 & 3 |
   |   | internal                  |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | Battery type select       |      J12      | pins 1 & 2 |
   |   | external                  |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |     JP22      | pins 1 & 2 |
   |   | not alter (revision 0     |               |   closed   |
   |   | boards only)              |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |     JP23      |   Closed   |
   |   | not alter (revision 0     |               |            |
   |   | boards only)              |               |            |
   |---+---------------------------+---------------+------------|
   |>> | DRAM type select 1M x 9   |     SW1/1     |    Off     |
   |---+---------------------------+---------------+------------|
   |   | DRAM type select 256K x 9 |     SW1/1     |     On     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |    Size    |    Bank 0     |    Bank 1     |    Bank 2     |
   |------------+---------------+---------------+---------------|
   |    1MB     | (4) 256K x 9  |     NONE      |     NONE      |
   |------------+---------------+---------------+---------------|
   |    2MB     | (4) 256K x 9  | (4) 256K x 9  |     NONE      |
   |------------+---------------+---------------+---------------|
   |    3MB     | (4) 256K x 9  | (4) 256K x 9  | (4) 256K x 9  |
   |------------+---------------+---------------+---------------|
   |    4MB     |  (4) 1M x 9   |     NONE      |     NONE      |
   |------------+---------------+---------------+---------------|
   |    8MB     |  (4) 1M x 9   |  (4) 1M x 9   |     NONE      |
   |------------+---------------+---------------+---------------|
   |    12MB    |  (4) 1M x 9   |  (4) 1M x 9   |  (4) 1M x 9   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  DRAM BANK CONFIGURATION                   |
   |------------------------------------------------------------|
   |        Bank        |       sw1/2       |       sw1/3       |
   |--------------------+-------------------+-------------------|
   |     0, 1, & 2      |        Off        |        Off        |
   |--------------------+-------------------+-------------------|
   |       0 & 1        |        Off        |        On         |
   |--------------------+-------------------+-------------------|
   |         0          |        On         |        On         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  DRAM SPEED CONFIGURATION                  |
   |------------------------------------------------------------|
   |       Speed        |       sw1/4       |       sw1/5       |
   |--------------------+-------------------+-------------------|
   |        80ns        |        Off        |        Off        |
   |--------------------+-------------------+-------------------|
   |       100ns        |        On         |        On         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               CACHE/PAGE MODE CONFIGURATION                |
   |------------------------------------------------------------|
   |       Mode       |     JP1 - JP20     |        JP21        |
   |------------------+--------------------+--------------------|
   |       Page       |       Closed       | pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |      Cache       |        Open        | pins 2 & 3 closed  |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/m/C-D/30621-2.png>
   

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |            Setting            |            JP7             |
   |-------------------------------+----------------------------|
   |            Enabled            |           Closed           |
   |-------------------------------+----------------------------|
   |           Disabled            |            Open            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   | Size  |  JP1   |  JP2   |  JP3   |  JP4   |  JP5   |  JP6  |
   |-------+--------+--------+--------+--------+--------+-------|
   | 32KB  | 1 & 2  |  Open  |  Open  |  Open  | Closed | 1 & 2 |
   |-------+--------+--------+--------+--------+--------+-------|
   | 64KB  | 2 & 3  | Closed | Closed | Closed |  Open  | 2 & 3 |
   |------------------------------------------------------------|
   | Note:Pins designated should be in the closed position.     |
   +------------------------------------------------------------+