SPRITE, INC.
============

   SM 486-50UVL

   Processor         80486SX/80487SX/80486DX/ODP486SX/80486DX2    
   Processor Speed   25/33/40/50(internal)/50/66(internal) MHz    
   Chip Set          OPTI                                         
   Max. Onboard DRAM 32MB                                         
   Cache             64/128/256KB                                 
   BIOS              MR                                           
   Dimensions        330mm x 220mm                                
   I/O Options       32-bit VESA local bus slots (3)              
   NPU Options       None                                         

<gopher://bitreich.org/I/th99/m/S-T/31506-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose          | Location | Purpose           | Location |
   |------------------+----------+-------------------+----------|
   | Turbo LED        |    J1    | Power LED &       |    J5    |
   |                  |          | keylock           |          |
   |------------------+----------+-------------------+----------|
   | Speaker          |    J2    | Turbo switch      |   JP6    |
   |------------------+----------+-------------------+----------|
   | External battery |    J3    | 32-bit VESA local | S1, S2,  |
   |                  |          | bus slots         |   & S3   |
   |------------------+----------+-------------------+----------|
   | Reset switch     |    J4    |                   |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |                Function                | Jumper | Position |
   |----------------------------------------+--------+----------|
   |>> | CPU speed select iOSC/2            |   W3   |  Closed  |
   |---+------------------------------------+--------+----------|
   |   | CPU speed select iOSC/1            |   W3   |   Open   |
   |---+------------------------------------+--------+----------|
   |>> | System password enabled/Monitor    |  W14   |  Closed  |
   |   | type select monochrome             |        |          |
   |---+------------------------------------+--------+----------|
   |   | System password disabled/Monitor   |   W14  |    Open  |
   |   | type select color                  |        |          |
   |---+------------------------------------+--------+----------|
   |>> | Battery select internal            |  W15   |  Closed  |
   |---+------------------------------------+--------+----------|
   |   | Battery select external            |   W15  |    Open  |
   |---+------------------------------------+--------+----------|
   |>> | Factory configured - do not alter  |  W16   | Unknown  |
   |---+------------------------------------+--------+----------|
   |>> | Factory configured - do not alter  |  W17   | Unknown  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             VESA BUS SPEED (ID3) CONFIGURATION             |
   |------------------------------------------------------------|
   |          CPU speed           |          JP1 (ID3)          |
   |------------------------------+-----------------------------|
   |           GBP 33MHz            |            Open             |
   |------------------------------+-----------------------------|
   |           > 33MHz            |           Closed            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |      32-BIT VESA LOCAL BUS AVAILABILITY CONFIGURATION      |
   |------------------------------------------------------------|
   |  CPU Speed  | Slots Available |            JP2             |
   |-------------+-----------------+----------------------------|
   |   GBP 50MHz   |  S1, S2, & S3   |     pins 2 & 3 closed      |
   |-------------+-----------------+----------------------------|
   |    66MHz    |       S3        |     pins 1 & 2 closed      |
   |------------------------------------------------------------|
   | Note: Board speed of 66MHz is an optional upgrade          |
   | available through the manufacturer.                        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size  |    Cache    |  Location  |    TAG     | Dirty Bit  |
   |-------+-------------+------------+------------+------------|
   | 64KB  | (8) 8K x 8  | Banks 0 &  | (1) 8K x 8 | (1) 16K x  |
   |       |             |     1      |            |     4      |
   |-------+-------------+------------+------------+------------|
   | 128KB | (4) 32K x 8 |   Bank 0   | (1) 8K x 8 | (1) 16K x  |
   |       |             |            |            |     4      |
   |-------+-------------+------------+------------+------------|
   | 256KB | (8) 32K x 8 | Banks 0 &  | (1) 32K x  | (1) 16K x  |
   |       |             |     1      |     8      |     4      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   | Size |  W6  |  W7  |  W8  |  W9  | W10  | W11  | W12 | W13 |
   |------+------+------+------+------+------+------+-----+-----|
   | 64KB |1 & 2 |1 & 2 | Open | Open | Open | Open |Open |1 & 2|
   |------+------+------+------+------+------+------+-----+-----|
   |128KB |1 & 2 |2 & 3 | Open |Closed| Open |Closed|1 & 2|2 & 3|
   |------+------+------+------+------+------+------+-----+-----|
   |256KB |2 & 3 |2 & 3 |Closed|Closed|Closed|Closed|2 & 3|1 & 2|
   |------------------------------------------------------------|
   |Note: Pins designated should be in the closed position.     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU TYPE CONFIGURATION                   |
   |------------------------------------------------------------|
   |     CPU type     |         W1          |        W2         |
   |------------------+---------------------+-------------------|
   |     80486SX      |  pins 2 & 3 closed  |       Open        |
   |------------------+---------------------+-------------------|
   | 80487SX/ODP486SX |  pins 1 & 2, 3 & 4  | pins 2 & 3 closed |
   |                  |       closed        |                   |
   |------------------+---------------------+-------------------|
   | 80486DX/80486DX2 |  pins 1 & 2, 3 & 4  | pins 1 & 2 closed |
   |                  |       closed        |                   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     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        |
   |------------------+--------------------+--------------------|
   |       17MB       |    (4) 256K x 9    |     (4) 4M x 9     |
   |------------------+--------------------+--------------------|
   |       20MB       |     (4) 1M x 9     |     (4) 4M x 9     |
   |------------------+--------------------+--------------------|
   |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
   +------------------------------------------------------------+