RINGO TECHNOLOGY, INC.
======================

   RT486SX/DX (VLB)

   Processor              80486SX/80486DX/80486DX2                
   Processor Speed        33/50(internal)/50/66(internal)MHz      
   Chip Set               OPTI                                    
   Video Chip Set         None                                    
   Maximum Onboard Memory 64MB                                    
   Maximum Video Memory   None                                    
   Cache                  256KB                                   
   BIOS                   AMI                                     
   Dimensions             330mm x 218mm                           
   I/O Options            32-bit VESA local bus slots (2)         
   NPU Options            None                                    

<gopher://bitreich.org/I/th99/m/P-R/34159-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | External battery  |    J6    | Chassis fan      |    P7    |
   |                   |          | power            |          |
   |-------------------+----------+------------------+----------|
   | Speaker           |    P5    | 32-bit VESA      |  SL1 &   |
   |                   |          | local bus slots  |   SL2    |
   |-------------------+----------+------------------+----------|
   | Power LED &       |    P6    |                  |          |
   | keylock           |          |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function                | Label |  Position  |
   |---------------------------------------+-------+------------|
   |>> | Battery type select internal      |  J6   | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | Battery type select Vectra        |  J6   |    Open    |
   |   | battery                           |       |            |
   |---+-----------------------------------+-------+------------|
   |   | CMOS memory clear                 |  J6   | Pins 3 & 4 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | Factory configured - do not alter |  JP1  |    Open    |
   |---+-----------------------------------+-------+------------|
   |>> | Factory configured - do not alter | JP12  |    Open    |
   |---+-----------------------------------+-------+------------|
   |>> | Factory configured - do not alter | JP13  |    Open    |
   |---+-----------------------------------+-------+------------|
   |>> | Monitor type select color/EGA/VGA | JP21  |   Closed   |
   |---+-----------------------------------+-------+------------|
   |   | Monitor type select monochrome    | JP21  |    Open    |
   |---+-----------------------------------+-------+------------|
   |>> | Factory configured - do not alter | JP23  |    Open    |
   |---+-----------------------------------+-------+------------|
   |>> | Standard VESA card in SL1         | JP24  | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | Battery type select Ni Cad        | JP26  | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | Factory configured - do not alter | JP27  | Pins 1 & 2 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | Factory configured - do not alter | JP28  |   Closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       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     |
   |------------------+--------------------+--------------------|
   |       20MB       |     (4) 4M x 9     |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
   |------------------+--------------------+--------------------|
   |       64MB       |    (4) 16M x 9     |        None        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |      Note: Board is factory installed with 256KB cache and |
   |      is not configurable. The location of the cache is     |
   |      unidentified.                                         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   | Size  |      JP10       |      JP11      |  JP16  |  JP17  |
   |-------+-----------------+----------------+--------+--------|
   | 256KB |   Pins 2 & 3    |   Pins 2 & 3   | Closed | Closed |
   |       |     closed      |     closed     |        |        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CPU SPEED SELECTION                     |
   |------------------------------------------------------------|
   |  Speed   |  JP6   |   JP7    |   JP8    |  JP9   |  JP22   |
   |----------+--------+----------+----------+--------+---------|
   |  33MHz   |  Open  |   Open   |  Closed  | 1 & 2  |  Open   |
   |----------+--------+----------+----------+--------+---------|
   |  50iMHz  |  Open  |   Open   |   Open   | 1 & 2  | Closed  |
   |----------+--------+----------+----------+--------+---------|
   |  50MHz   |  Open  |  Closed  |   Open   | 1 & 2  |  Open   |
   |----------+--------+----------+----------+--------+---------|
   |  66iMHz  |  Open  |   Open   |  Closed  | 1 & 2  |  Open   |
   |------------------------------------------------------------|
   | Note: Pins designated should be in the closed position.    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     CPU TYPE SELECTION                     |
   |------------------------------------------------------------|
   |  Type   |  JP2  | JP14  | JP15  | JP18  | JP19 |JP20 |JP25 |
   |---------+-------+-------+-------+-------+------+-----+-----|
   | 80486SX | Open  |Closed |Closed | Open  |2 & 3 |1 & 2|2 & 3|
   |---------+-------+-------+-------+-------+------+-----+-----|
   | 80486DX |Closed |Closed |Closed |Closed |1 & 2 |1 & 2|2 & 3|
   |---------+-------+-------+-------+-------+------+-----+-----|
   |80486DX2 |Closed |Closed |Closed |Closed |1 & 2 |1 & 2|2 & 3|
   |------------------------------------------------------------|
   |Note: Pins designated should be in the closed position.     |
   +------------------------------------------------------------+