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

   GMB-386UN

   Processor         80386DX                                      
   Processor Speed   33/40MHz                                     
   Chip Set          UMC                                          
   Max. Onboard DRAM 32MB                                         
   Cache             32/64/128/256KB                              
   BIOS              AMI                                          
   Dimensions        254mm x 220mm                                
   I/O Options       None                                         
   NPU Options       80387DX/3167                                 

<gopher://bitreich.org/I/th99/m/P-R/32175-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose          | Location | Purpose           | Location |
   |------------------+----------+-------------------+----------|
   | External battery |   JP1    | Speaker           |   JP18   |
   |------------------+----------+-------------------+----------|
   | Turbo LED        |   JP16   | Reset switch      |   JP19   |
   |------------------+----------+-------------------+----------|
   | Turbo switch     |   JP17   | Power LED &       |   JP20   |
   |                  |          | keylock           |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function              | Jumper |   Position   |
   |------------------------------------+--------+--------------|
   |>> | CMOS memory normal operation   |  JP2   |  pins 1 & 2  |
   |   |                                |        |    closed    |
   |---+--------------------------------+--------+--------------|
   |   | CMOS memory clear              |  JP2   |  pins 2 & 3  |
   |   |                                |        |    closed    |
   |---+--------------------------------+--------+--------------|
   |>> | Monitor type select color      |  JP3   |    Closed    |
   |---+--------------------------------+--------+--------------|
   |   | Monitor type select monochrome |  JP3   |     Open     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     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        |
   |------------------+--------------------+--------------------|
   |       5MB        |    (4) 256K x 9    |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       8MB        |     (4) 1M x 9     |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       16MB       |     (4) 4M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       20MB       |    (4) 256K x 9    |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       20MB       |     (4) 1M x 9     |    (4) 256K x 9    |
   |------------------+--------------------+--------------------|
   |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |    Size    |    Bank 0     |    Bank 1     |      TAG      |
   |------------+---------------+---------------+---------------|
   |    32KB    |  (4) 8K x 8   |     NONE      |  (1) 8K x 8   |
   |------------+---------------+---------------+---------------|
   |    64KB    |  (4) 8K x 8   |  (4) 8K x 8   |  (1) 8K x 8   |
   |------------+---------------+---------------+---------------|
   |   128KB    |  (4) 32K x 8  |     NONE      |  (1) 8K x 8   |
   |------------+---------------+---------------+---------------|
   |   256KB    |  (4) 32K x 8  |  (4) 32K x 8  |  (1) 32K x 8  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |          CACHE JUMPER CONFIGURATION (WRITE BACK)           |
   |------------------------------------------------------------|
   |Size |   JP8   | JP9  |JP10 |JP11 |JP12 | JP13 |JP14 | JP15 |
   |-----+---------+------+-----+-----+-----+------+-----+------|
   |32KB |  2 & 3  | Open |2 & 3|1 & 2|2 & 3| Open |2 & 3| Open |
   |-----+---------+------+-----+-----+-----+------+-----+------|
   |64KB |  1 & 2  |Closed|2 & 3|2 & 3|1 & 2| Open |2 & 3| Open |
   |-----+---------+------+-----+-----+-----+------+-----+------|
   |128KB|1 & 2, 3 |Closed|1 & 2|2 & 3|2 & 3|Closed|2 & 3| Open |
   |     |   & 4   |      |     |     |     |      |     |      |
   |-----+---------+------+-----+-----+-----+------+-----+------|
   |256KB|1 & 2, 4 |Closed|2 & 3|2 & 3|2 & 3|Closed|1 & 2|Closed|
   |     |   & 5   |      |     |     |     |      |     |      |
   |------------------------------------------------------------|
   |Note: Pins designated should be in the closed position.     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |         CACHE JUMPER CONFIGURATION (WRITE THROUGH)         |
   |------------------------------------------------------------|
   |Size |   JP8   | JP9  |JP10 |JP11 |JP12 | JP13 |JP14 | JP15 |
   |-----+---------+------+-----+-----+-----+------+-----+------|
   |32KB |  2 & 3  | Open |2 & 3|2 & 3|2 & 3| Open |2 & 3| Open |
   |-----+---------+------+-----+-----+-----+------+-----+------|
   |64KB |  1 & 2  |Closed|2 & 3|2 & 3|2 & 3| Open |2 & 3| Open |
   |-----+---------+------+-----+-----+-----+------+-----+------|
   |128KB|1 & 2, 3 |Closed|2 & 3|2 & 3|2 & 3|Closed|2 & 3| Open |
   |     |   & 4   |      |     |     |     |      |     |      |
   |-----+---------+------+-----+-----+-----+------+-----+------|
   |256KB|1 & 2, 4 |Closed|2 & 3|2 & 3|2 & 3|Closed|2 & 3|Closed|
   |     |   & 5   |      |     |     |     |      |     |      |
   |------------------------------------------------------------|
   |Note: Pins designated should be in the closed position.     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |      Speed       |        JP7         |        JP21        |
   |------------------+--------------------+--------------------|
   |      33MHz       | pins 1 & 2 closed  | pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |      40MHz       | pins 2 & 3 closed  | pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |         MATH COPROCESSOR WAIT STATE CONFIGURATION          |
   |------------------------------------------------------------|
   |          Wait states          |            JP5             |
   |-------------------------------+----------------------------|
   |         0 wait states         |           Closed           |
   |-------------------------------+----------------------------|
   |         1 wait state          |            Open            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   A20 GATE CONFIGURATION                   |
   |------------------------------------------------------------|
   |                Setting                 |        JP4        |
   |----------------------------------------+-------------------|
   |            Hardware emulate            |       Open        |
   |----------------------------------------+-------------------|
   |        8042 keyboard controller        | pins 1 & 2 closed |
   |----------------------------------------+-------------------|
   |           Cyrix CPU emulate            | pins 2 & 4 closed |
   |----------------------------------------+-------------------|
   | Keyboard controller controls Cyrix CPU | pins 3 & 4 closed |
   +------------------------------------------------------------+