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

   RACER-286

   Processor         80286 (exact location unknown)               
   Processor Speed   6/12.5MHz                                    
   Chip Set          Suntac                                       
   Max. Onboard DRAM 4MB                                          
   Cache             None                                         
   BIOS              Unidentified                                 
   Dimensions        330mm x 218mm                                
   I/O Options       None                                         
   NPU Options       80287                                        

<gopher://bitreich.org/I/th99/m/C-D/32267-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | Power LED &       |   J20    | External battery |   JP12   |
   | keylock           |          |                  |          |
   |-------------------+----------+------------------+----------|
   | Turbo LED         |   JP8    | Reset switch     |   JP6    |
   |-------------------+----------+------------------+----------|
   | Speaker           |   JP10   |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |           Function            | Jumper/Switch |  Position  |
   |-------------------------------+---------------+------------|
   |>> | Wait state select 0 wait  |      JP5      |   Closed   |
   |   | states                    |               |            |
   |---+---------------------------+---------------+------------|
   |   | Wait state select 1 wait  |      JP5      |    Open    |
   |   | state                     |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Clock speed control       |      JP9      | pins 1 & 2 |
   |   | keyboard                  |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | Clock speed control DIP   |      JP9      | pins 2 & 3 |
   |   | switch                    |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | On board battery enabled  |     JP11      |   Closed   |
   |---+---------------------------+---------------+------------|
   |   | On board battery disabled |     JP11      |    Open    |
   |---+---------------------------+---------------+------------|
   |>> | Monitor type select color |     SW1/2     |     On     |
   |---+---------------------------+---------------+------------|
   |   | Monitor type select       |     SW1/2     |    Off     |
   |   | monochrome                |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Parity check enabled      |     SW1/3     |     On     |
   |---+---------------------------+---------------+------------|
   |   | Parity check disabled     |     SW1/3     |    Off     |
   |---+---------------------------+---------------+------------|
   |>> | Port address select 0E8H  |     SW1/4     |     On     |
   |---+---------------------------+---------------+------------|
   |   | Port address select 098H  |     SW1/4     |    Off     |
   |---+---------------------------+---------------+------------|
   |>> | BIOS type select 27128    |     SW1/5     |     On     |
   |---+---------------------------+---------------+------------|
   |   | BIOS type select 27256    |     SW1/5     |    Off     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |  Size   |    Bank 0    |   Bank 1    |  Bank 2   | Bank 3  |
   |---------+--------------+-------------+-----------+---------|
   |  512KB  |  (16) 41256  |    NONE     |   NONE    |  NONE   |
   |---------+--------------+-------------+-----------+---------|
   |  512KB  |     NONE     |    NONE     | (4) 44256 |  NONE   |
   |---------+--------------+-------------+-----------+---------|
   |  640KB  |  (16) 41256  |  (16) 4164  |   NONE    |  NONE   |
   |---------+--------------+-------------+-----------+---------|
   |   1MB   |  (16) 41256  | (16) 41256  |   NONE    |  NONE   |
   |---------+--------------+-------------+-----------+---------|
   |   1MB   |     NONE     |    NONE     | (4) 44256 |   (4)   |
   |         |              |             |           |  44256  |
   |---------+--------------+-------------+-----------+---------|
   |   2MB   | (16) 411000  |    NONE     |   NONE    |         |
   |---------+--------------+-------------+-----------+---------|
   |   4MB   | (16) 411000  | (16) 411000 |   NONE    |  NONE   |
   |------------------------------------------------------------|
   | Note: When installing the above chips, do not use sockets  |
   | IC9, IC21, IC36 & IC45.                                    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              DRAM CONFIGURATION (PARITY CHIP)              |
   |------------------------------------------------------------|
   |  Size  |  IC9, IC21  | IC36, IC45 | U38 - U39  | U40 - U41 |
   |--------+-------------+------------+------------+-----------|
   | 512KB  |  (2) 41256  |    NONE    |    NONE    |   NONE    |
   |--------+-------------+------------+------------+-----------|
   | 512KB  |    NONE     |    NONE    | (2) 41256  |   NONE    |
   |--------+-------------+------------+------------+-----------|
   | 640KB  |  (2) 41256  |  (2) 4164  |    NONE    |   NONE    |
   |--------+-------------+------------+------------+-----------|
   |  1MB   |  (2) 41256  | (2) 41256  |    NONE    |   NONE    |
   |--------+-------------+------------+------------+-----------|
   |  1MB   |    NONE     |    NONE    | (2) 41256  | (2) 41256 |
   |--------+-------------+------------+------------+-----------|
   |  2MB   | (2) 411000  |    NONE    |    NONE    |   NONE    |
   |--------+-------------+------------+------------+-----------|
   |  4MB   | (2) 411000  | (2) 411000 |    NONE    |   NONE    |
   |------------------------------------------------------------|
   | Note:This section is used only if parity chips are         |
   | installed.                                                 |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DRAM SWITCH CONFIGURATION                  |
   |------------------------------------------------------------|
   | Size  | SW1/6 |SW1/7 |SW1/8 |Conventional|Extended|Expanded|
   |-------+-------+------+------+------------+--------+--------|
   | 512KB |  On   |  On  |  On  |   512KB    |  0KB   |  0KB   |
   |-------+-------+------+------+------------+--------+--------|
   | 640KB |  On   |  On  | Off  |   640KB    |  0KB   |  0KB   |
   |-------+-------+------+------+------------+--------+--------|
   |  1MB  |  On   | Off  |  On  |   640KB    | 384KB  |  0KB   |
   |-------+-------+------+------+------------+--------+--------|
   |  1MB  |  On   | Off  | Off  |   640KB    |  0KB   | 384KB  |
   |-------+-------+------+------+------------+--------+--------|
   |  2MB  |  Off  |  On  |  On  |   640KB    | 1408KB |  0KB   |
   |-------+-------+------+------+------------+--------+--------|
   |  2MB  |  Off  |  On  | Off  |   640KB    |  0KB   | 1408KB |
   |-------+-------+------+------+------------+--------+--------|
   |  4MB  |  Off  | Off  |  On  |   640KB    | 3456KB |  0KB   |
   |-------+-------+------+------+------------+--------+--------|
   |  4MB  |  Off  | Off  | Off  |   640KB    |  0KB   | 3456KB |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |       Speed        |        JP7         |      SW1/1       |
   |--------------------+--------------------+------------------|
   |        6MHz        |        Open        |        On        |
   |--------------------+--------------------+------------------|
   |      12.5MHz       |       Closed       |       Off        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                KEYBOARD BIOS CONFIGURATION                 |
   |------------------------------------------------------------|
   | Connector  |    JP1     |    JP2    |    JP3    |   JP4    |
   |------------+------------+-----------+-----------+----------|
   |    8742    |   pin 32   |  pin 27   |  pin 23   |  pin30   |
   +------------------------------------------------------------+