ROBOTECH, INC.
==============

   COBRA RS

   Processor    80486SX/80487SX/80486DX/80486DX2/Pentium          
                Overdrive                                         
   Processor    25/33/40/50(internal)/50/66(internal)MHz          
   Speed        
   Chip Set     OPTI                                              
   Max. Onboard 128MB                                             
   DRAM         
   Cache        256/512/1024KB                                    
   BIOS         AMI                                               
   Dimensions   330mm x 218mm                                     
   I/O Options  32-bit VESA local bus slots (3), green PC         
                connector                                         
   NPU Options  None                                              

<gopher://bitreich.org/I/th99/m/P-R/32189-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | External battery  |   JP2    | Turbo switch     |   JP19   |
   |-------------------+----------+------------------+----------|
   | Green power       |   JP3    | Green PC         |   JP20   |
   | supply            |          | hardware switch  |          |
   |-------------------+----------+------------------+----------|
   | Keyboard          |   JP16   | Turbo LED        |   JP21   |
   | connector         |          |                  |          |
   |-------------------+----------+------------------+----------|
   | Speaker           |   JP17   | Reset switch     |   JP26   |
   |-------------------+----------+------------------+----------|
   | Green PC LED      |   JP18   | 32-bit VESA      |  SL1 -   |
   |                   |          | local bus slots  |   SL3    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | CMOS memory normal operation     |  JP1   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | CMOS memory clear                |  JP1   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Monitor type select color        |  JP4   |   Closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select monochrome   |  JP4   |    Open    |
   |---+----------------------------------+--------+------------|
   |>> | Flash BIOS voltage select 5v     |  JP5   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Flash BIOS voltage select 12v    |  JP5   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | CPU type select Intel            |  JP15  | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | CPU type select Cyrix            |  JP15  | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JP24  |    Open    |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JP25  |    Open    |
   |   | alter                            |        |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       1MB        |    (4) 256K x 9    |        NONE        |
   |------------------+--------------------+--------------------|
   |       2MB        |    (4) 256K x 9    |    (4) 256K x 9    |
   |------------------+--------------------+--------------------|
   |       4MB        |     (4) 1M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       8MB        |     (4) 1M x 9     |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       16MB       |     (4) 4M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       20MB       |     (4) 1M x 9     |     (4) 4M x 9     |
   |------------------+--------------------+--------------------|
   |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
   |------------------+--------------------+--------------------|
   |       64MB       |     (4) 8M x 9     |     (4) 8M x 9     |
   |------------------+--------------------+--------------------|
   |      128MB       |    (4) 16M x 9     |    (4) 16M x 9     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |    Size    |    Bank 0     |    Bank 1     |      TAG      |
   |------------+---------------+---------------+---------------|
   |   256KB    |  (4) 32K x 8  |  (4) 32K x 8  |  (1) 32K x 8  |
   |------------+---------------+---------------+---------------|
   |   512KB    | (4) 128K x 8  |     NONE      |  (1) 32K x 8  |
   |------------+---------------+---------------+---------------|
   |    1MB     | (4) 128K x 8  | (4) 128K x 8  |  (1) 32K x 8  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   |       Size       |        JP11        |        JP12        |
   |------------------+--------------------+--------------------|
   |      256KB       | pins 1 & 2 closed  | pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |      512KB       | pins 2 & 3 closed  | pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |       1MB        | pins 2 & 4 closed  | pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU TYPE CONFIGURATION                   |
   |------------------------------------------------------------|
   |     Type     |          JP8          |    JP9     |  JP10  |
   |--------------+-----------------------+------------+--------|
   |   80486SX    |   pins 2 & 3 closed   |    Open    |  Open  |
   |--------------+-----------------------+------------+--------|
   |   80487SX    |   pins 1 & 2, 3 & 4   |    Open    |  Open  |
   |              |        closed         |            |        |
   |--------------+-----------------------+------------+--------|
   | 80486DX/DX2  |   pins 1 & 2, 3 & 4   | pins 2 & 3 |  Open  |
   |              |        closed         |   closed   |        |
   |--------------+-----------------------+------------+--------|
   |   Pentium    |   pins 1 & 2, 3 & 4   | pins 1 & 2 | Closed |
   |  Overdrive   |        closed         |   closed   |        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   | Speed  |  JP13  |      JP14      |    JP27    |    JP28    |
   |--------+--------+----------------+------------+------------|
   | 25MHz  | Closed |   pins 1 & 2   | pins 2 & 4 | pins 2 & 3 |
   |        |        |     closed     |   closed   |   closed   |
   |--------+--------+----------------+------------+------------|
   | 33MHz  |  Open  | pins 1 & 2, 5  | pins 2 & 4 | pins 2 & 3 |
   |        |        |   & 6 closed   |   closed   |   closed   |
   |--------+--------+----------------+------------+------------|
   | 40MHz  |  Open  | pins 1 & 2, 3  | pins 1 & 2 | pins 1 & 2 |
   |        |        |   & 4 closed   |   closed   |   closed   |
   |--------+--------+----------------+------------+------------|
   | 50iMHz | Closed |   pins 1 & 2   | pins 2 & 4 | pins 2 & 3 |
   |        |        |     closed     |   closed   |   closed   |
   |--------+--------+----------------+------------+------------|
   | 50MHz  |  Open  | pins 1 & 2, 3  | pins 1 & 2 | pins 1 & 2 |
   |        |        |   & 4, 5 & 6   |   closed   |   closed   |
   |        |        |     closed     |            |            |
   |--------+--------+----------------+------------+------------|
   | 66iMHz |  Open  | pins 1 & 2, 5  | pins 2 & 4 | pins 2 & 3 |
   |        |        |   & 6 closed   |   closed   |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  BUS SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |           CPU speed           |            JP22            |
   |-------------------------------+----------------------------|
   |            <=33MHz            |            Open            |
   |-------------------------------+----------------------------|
   |            >33MHz             |           Closed           |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               VESA WAIT STATE CONFIGURATION                |
   |------------------------------------------------------------|
   |          Wait states          |            JP23            |
   |-------------------------------+----------------------------|
   |         0 wait states         |            Open            |
   |-------------------------------+----------------------------|
   |         1 wait state          |           Closed           |
   +------------------------------------------------------------+