CACHE COMPUTERS, INC.
=====================

   SX 386-20 (Model 308)

   Processor             80386SX                                  
   Processor Speed       16/20MHz                                 
   Chip Set              VIA                                      
   Max. Onboard DRAM     8MB                                      
   Cache                 None                                     
   BIOS                  AMI/Award/Phoenix/Quadtel                
   Dimensions            330mm x 218mm                            
   I/O Options           None                                     
   NPU Options           80387SX                                  

<gopher://bitreich.org/I/th99/m/C-D/30470-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose         | Location  | Purpose           | Location |
   |-----------------+-----------+-------------------+----------|
   | Turbo switch    |    J3     | External battery  |    J8    |
   |-----------------+-----------+-------------------+----------|
   | Turbo LED       |    J6     | Speaker           |   J11    |
   |-----------------+-----------+-------------------+----------|
   | Power LED &     |    J7     | Reset switch      |   SW3    |
   | keylock         |           |                   |          |
   |------------------------------------------------------------|
   | Note:The location of the expansion slots is unidentified.  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |           Function            | Jumper/Switch |  Position  |
   |-------------------------------+---------------+------------|
   |>> | CPU speed select 20MHz    |      J1       |    Open    |
   |---+---------------------------+---------------+------------|
   |   | CPU speed select 16MHz    |      J1       |   Closed   |
   |---+---------------------------+---------------+------------|
   |>> | NPU disabled              |      J2       |   Closed   |
   |---+---------------------------+---------------+------------|
   |   | NPU enabled               |      J2       |    Open    |
   |---+---------------------------+---------------+------------|
   |>> | Monitor type select       |      J4       |    Open    |
   |   | monochrome                |               |            |
   |---+---------------------------+---------------+------------|
   |   | Monitor type select color |      J4       |   Closed   |
   |---+---------------------------+---------------+------------|
   |>> | DMA speed select 8/10MHz  |      J99      | pins 2 & 3 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | DMA speed select 4MHz     |      J99      |   Closed   |
   |---+---------------------------+---------------+------------|
   |   | DMA speed select          |      J99      | pins 1 & 2 |
   |   | synchronous with CPU      |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |     SW2/5     |    Off     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |     SW2/6     |    Off     |
   |   | not alter                 |               |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size  |   Bank 0    |   Bank 1   |   Bank 2   |   Bank 3   |
   |-------+-------------+------------+------------+------------|
   | 512KB | (2) 256K x  |    NONE    |    NONE    |    NONE    |
   |       |      9      |            |            |            |
   |-------+-------------+------------+------------+------------|
   |  1MB  | (2) 256K x  | (2) 256K x |    NONE    |    NONE    |
   |       |      9      |     9      |            |            |
   |-------+-------------+------------+------------+------------|
   | 1.5MB | (2) 256K x  | (2) 256K x | (2) 256K x |    NONE    |
   |       |      9      |     9      |     9      |            |
   |-------+-------------+------------+------------+------------|
   |  2MB  | (2) 256K x  | (2) 256K x | (2) 256K x | (2) 256K x |
   |       |      9      |     9      |     9      |     9      |
   |-------+-------------+------------+------------+------------|
   |  2MB  | (2) 1M x 9  |    NONE    |    NONE    |    NONE    |
   |-------+-------------+------------+------------+------------|
   |  3MB  | (2) 256K x  | (2) 256K x | (2) 1M x 9 |    NONE    |
   |       |      9      |     9      |            |            |
   |-------+-------------+------------+------------+------------|
   |  4MB  | (2) 1M x 9  | (2) 1M x 9 |    NONE    |    NONE    |
   |-------+-------------+------------+------------+------------|
   |  5MB  | (2) 256K x  | (2) 256K x | (2) 1M x 9 | (2) 1M x 9 |
   |       |      9      |     9      |            |            |
   |-------+-------------+------------+------------+------------|
   |  6MB  | (2) 1M x 9  | (2) 1M x 9 | (2) 1M x 9 |    NONE    |
   |-------+-------------+------------+------------+------------|
   |  8MB  | (2) 1M x 9  | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              DRAM JUMPER/SWITCH CONFIGURATION              |
   |------------------------------------------------------------|
   |  Size  |  J10  |  J13  | SW2/1  | SW2/2  | SW2/3  | SW2/4  |
   |--------+-------+-------+--------+--------+--------+--------|
   | 512KB  | 2 & 3 | 2 & 3 |  Off   |  Off   |  Off   |  Off   |
   |--------+-------+-------+--------+--------+--------+--------|
   |  1MB   | 2 & 3 | 2 & 3 |   On   |  Off   |  Off   |  Off   |
   |--------+-------+-------+--------+--------+--------+--------|
   | 1.5MB  | 2 & 3 | 2 & 3 |  Off   |   On   |  Off   |  Off   |
   |--------+-------+-------+--------+--------+--------+--------|
   |  2MB   | 2 & 3 | 2 & 3 |   On   |   On   |  Off   |  Off   |
   |--------+-------+-------+--------+--------+--------+--------|
   |  2MB   | 1 & 2 | 1 & 2 |  Off   |  Off   |   On   |   On   |
   |--------+-------+-------+--------+--------+--------+--------|
   |  3MB   | 2 & 3 | 1 & 2 |  Off   |   On   |   On   |  Off   |
   |--------+-------+-------+--------+--------+--------+--------|
   |  4MB   | 1 & 2 | 1 & 2 |   On   |  Off   |   On   |   On   |
   |--------+-------+-------+--------+--------+--------+--------|
   |  5MB   | 2 & 3 | 1 & 2 |   On   |   On   |   On   |  Off   |
   |--------+-------+-------+--------+--------+--------+--------|
   |  6MB   | 1 & 2 | 1 & 2 |  Off   |   On   |   On   |   On   |
   |--------+-------+-------+--------+--------+--------+--------|
   |  8MB   | 1 & 2 | 1 & 2 |   On   |   On   |   On   |   On   |
   |------------------------------------------------------------|
   | Note:Pins designated should be in the closed position.     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               DRAM WAIT STATE CONFIGURATION                |
   |------------------------------------------------------------|
   |  Read States  | Write States  |    SW2/7     |    SW2/8    |
   |---------------+---------------+--------------+-------------|
   |     NONE      |     NONE      |     Off      |     On      |
   |---------------+---------------+--------------+-------------|
   |       1       |       1       |     Off      |     Off     |
   |---------------+---------------+--------------+-------------|
   |       1       |       2       |      On      |     Off     |
   |---------------+---------------+--------------+-------------|
   |       2       |       2       |      On      |     On      |
   +------------------------------------------------------------+