UNIDENTIFIED
============

   TURBO MAINBOARD (4.77/10MHZ)

   Processor              8088                                    
   Processor Speed        4.77/10MHz                              
   Chip Set               Unidentified                            
   Video Chip Set         None                                    
   Maximum Onboard Memory 640KB                                   
   Maximum Video Memory   None                                    
   Cache                  None                                    
   BIOS                   Unidentified                            
   Dimensions             276mm x 196mm                           
   I/O Options            None                                    
   NPU Options            8087                                    

<gopher://bitreich.org/I/th99/m/U-Z/33658-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose        | Location | Purpose       |    Location    |
   |----------------+----------+---------------+----------------|
   | Speaker        |   JP1    | Turbo LED     | JP5 pins 1 & 2 |
   |----------------+----------+---------------+----------------|
   | Keylock        |   JP3    | Power LED     | JP5 pins 3 & 4 |
   |----------------+----------+---------------+----------------|
   | Reset switch   |   JP4    | Turbo switch  |      JP6       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function                | Label  | Position  |
   |---------------------------------------+--------+-----------|
   |>> | Factory configured - do not alter | SW1/1  |    Off    |
   |---+-----------------------------------+--------+-----------|
   |>> | NPU not installed                 | SW1/2  |    On     |
   |---+-----------------------------------+--------+-----------|
   |   | NPU installed                     | SW1/2  |    Off    |
   |---+-----------------------------------+--------+-----------|
   |>> | Factory configured - do not alter | SW1/3  |    Off    |
   |---+-----------------------------------+--------+-----------|
   |>> | Factory configured - do not alter | SW1/4  |    Off    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size  | Bank 0  | Bank 1 | Bank 2 | Bank  | Bank 3 | Bank  |
   |       |         |        |        |  2A   |        |  3A   |
   |-------+---------+--------+--------+-------+--------+-------|
   | 256KB |   (9)   |  None  |  None  | None  |  None  | None  |
   |       |  41256  |        |        |       |        |       |
   |-------+---------+--------+--------+-------+--------+-------|
   | 512KB |   (9)   |  (9)   |  None  | None  |  None  | None  |
   |       |  41256  | 41256  |        |       |        |       |
   |-------+---------+--------+--------+-------+--------+-------|
   | 576KB |   (9)   |  (9)   |  (2)   |  (1)  |  None  | None  |
   |       |  41256  | 41256  |  4464  | 4164  |        |       |
   |-------+---------+--------+--------+-------+--------+-------|
   | 640KB |   (9)   |  (9)   |  (2)   |  (1)  |  (2)   |  (1)  |
   |       |  41256  | 41256  |  4464  | 4164  |  4464  | 4164  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   FLOPPY DRIVE SELECTION                   |
   |------------------------------------------------------------|
   |  Drives installed  |       SW1/7       |       SW1/8       |
   |--------------------+-------------------+-------------------|
   |         1          |        On         |        On         |
   |--------------------+-------------------+-------------------|
   |         2          |        Off        |        On         |
   |--------------------+-------------------+-------------------|
   |         3          |        On         |        Off        |
   |--------------------+-------------------+-------------------|
   |         4          |        Off        |        Off        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     MONITOR SELECTION                      |
   |------------------------------------------------------------|
   |        Type        |       SW1/5       |       SW1/6       |
   |--------------------+-------------------+-------------------|
   |        None        |        On         |        On         |
   |--------------------+-------------------+-------------------|
   |  Color (40 x 20)   |        Off        |        On         |
   |--------------------+-------------------+-------------------|
   |  Color (80 x 25)   |        On         |        Off        |
   |--------------------+-------------------+-------------------|
   |     Monochrome     |        Off        |        Off        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      TURBO SELECTION                       |
   |------------------------------------------------------------|
   |           Type            |      JP7       |      JP8      |
   |---------------------------+----------------+---------------|
   |   Always in turbo mode    |   Pins 1 & 2   |  Pins 2 & 3   |
   |                           |     closed     |    closed     |
   |---------------------------+----------------+---------------|
   |   Turbo select through    |   Pins 2 & 3   |  Pins 1 & 2   |
   |         software          |     closed     |    closed     |
   |---------------------------+----------------+---------------|
   |   Turbo select through    |   Pins 1 & 2   |  Pins 1 & 2   |
   |    software & keyboard    |     closed     |    closed     |
   |------------------------------------------------------------|
   |      Note: To toggle between normal and turbo modes, press |
   |      CTRL, ALT, + to enable turbo and CTRL, ALT, - to      |
   |      disable turbo.                                        |
   +------------------------------------------------------------+