MICRONICS COMPUTERS, INC.
=========================

   80486-25 ISA

   Processor             80486DX                                  
   Processor Speed       25MHz                                    
   Chip Set              Micronics                                
   Max. Onboard DRAM     16MB                                     
   Cache                 64/128/256KB                             
   BIOS                  Phoenix                                  
   Dimensions            350mm x 304mm                            
   I/O Options           None                                     
   NPU Options           4167                                     

<gopher://bitreich.org/I/th99/m/M-O/30106-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose             | Location | Purpose        | Location |
   |---------------------+----------+----------------+----------|
   | External battery    |    J2    | Reset switch   |    W4    |
   |---------------------+----------+----------------+----------|
   | Speaker             |   J22    | Turbo LED      |    W5    |
   |---------------------+----------+----------------+----------|
   | Power LED & keylock |   J23    | Turbo switch   |    W6    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |           Function            | Jumper/Switch |  Position  |
   |-------------------------------+---------------+------------|
   |>> | Internal cache enabled    |     SW1/1     |     On     |
   |---+---------------------------+---------------+------------|
   |   | Internal cache disabled   |     SW1/1     |    Off     |
   |---+---------------------------+---------------+------------|
   |>> | BIOS select onboard       |     SW1/2     |    Off     |
   |---+---------------------------+---------------+------------|
   |   | BIOS select external      |     SW1/2     |     On     |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |     SW1/3     |     On     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Secondary cache enabled   |     SW1/4     |     On     |
   |---+---------------------------+---------------+------------|
   |   | Secondary cache disabled  |     SW1/4     |    Off     |
   |---+---------------------------+---------------+------------|
   |>> | Video BIOS shadowing      |     SW1/5     |    Off     |
   |   | disabled                  |               |            |
   |---+---------------------------+---------------+------------|
   |   | Video BIOS shadowing      |     SW1/5     |     On     |
   |   | enabled                   |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |     SW1/6     |    Off     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Monitor type select color |     SW1/7     |     On     |
   |---+---------------------------+---------------+------------|
   |   | Monitor type select       |     SW1/7     |    Off     |
   |   | monochrome                |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |     SW1/8     |    Off     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |     SW2/5     |    Off     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Address range 14MB to     |     SW2/6     |    Off     |
   |   | 15MB cacheable            |               |            |
   |---+---------------------------+---------------+------------|
   |   | Address range 13MB to     |     SW2/6     |     On     |
   |   | 15MB Non-cacheable        |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |      W1       | pins 1 & 2 |
   |   | not alter                 |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |      W2       | pins 2 & 3 |
   |   | not alter                 |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | Video BIOS caching        |      W3       |    Open    |
   |   | enabled                   |               |            |
   |---+---------------------------+---------------+------------|
   |   | Video BIOS caching        |      W3       |   Closed   |
   |   | disabled                  |               |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size |   Bank 0    |   Bank 1    |   Bank 2   |   Bank 3   |
   |------+-------------+-------------+------------+------------|
   | 1MB  | (4) 256K x  |    NONE     |    NONE    |    NONE    |
   |      |      9      |             |            |            |
   |------+-------------+-------------+------------+------------|
   | 2MB  | (4) 256K x  | (4) 256K x  |    NONE    |    NONE    |
   |      |      9      |      9      |            |            |
   |------+-------------+-------------+------------+------------|
   | 3MB  | (4) 256K x  | (4) 256K x  | (4) 256K x |    NONE    |
   |      |      9      |      9      |     9      |            |
   |------+-------------+-------------+------------+------------|
   | 4MB  | (4) 256K x  | (4) 256K x  | (4) 256K x | (4) 256K x |
   |      |      9      |      9      |     9      |     9      |
   |------+-------------+-------------+------------+------------|
   | 4MB  | (4) 1M x 9  |    NONE     |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 5MB  | (4) 256K x  | (4) 1M x 9  |    NONE    |    NONE    |
   |      |      9      |             |            |            |
   |------+-------------+-------------+------------+------------|
   | 6MB  | (4) 256K x  | (4) 256K x  | (4) 1M x 9 |    NONE    |
   |      |      9      |      9      |            |            |
   |------+-------------+-------------+------------+------------|
   | 7MB  | (4) 256K x  | (4) 256K x  | (4) 256K x | (4) 1M x 9 |
   |      |      9      |      9      |     9      |            |
   |------+-------------+-------------+------------+------------|
   | 8MB  | (4) 1M x 9  | (4) 1M x 9  |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 9MB  | (4) 256K x  | (4) 1M x 9  | (4) 1M x 9 |    NONE    |
   |      |      9      |             |            |            |
   |------+-------------+-------------+------------+------------|
   | 10MB | (4) 256K x  | (4) 256K x  | (4) 1M x 9 | (4) 1M x 9 |
   |      |      9      |      9      |            |            |
   |------+-------------+-------------+------------+------------|
   | 12MB | (4) 1M x 9  | (4) 1M x 9  | (4) 1M x 9 |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 13MB | (4) 256K x  | (4) 1M x 9  | (4) 1M x 9 | (4) 1M x 9 |
   |      |      9      |             |            |            |
   |------+-------------+-------------+------------+------------|
   | 16MB | (4) 1M x 9  | (4) 1M x 9  | (4) 1M x 9 | (4) 1M x 9 |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DRAM SWITCH CONFIGURATION                  |
   |------------------------------------------------------------|
   |   Size    |   SW2/1    |   SW2/2   |   SW2/3   |   SW2/4   |
   |-----------+------------+-----------+-----------+-----------|
   |    1MB    |     On     |    On     |    On     |    On     |
   |-----------+------------+-----------+-----------+-----------|
   |    2MB    |    Off     |    On     |    On     |    On     |
   |-----------+------------+-----------+-----------+-----------|
   |    3MB    |     On     |    Off    |    On     |    On     |
   |-----------+------------+-----------+-----------+-----------|
   |    4MB    |    Off     |    Off    |    On     |    On     |
   |-----------+------------+-----------+-----------+-----------|
   |    4MB    |     On     |    On     |    Off    |    On     |
   |-----------+------------+-----------+-----------+-----------|
   |    5MB    |     On     |    On     |    Off    |    Off    |
   |-----------+------------+-----------+-----------+-----------|
   |    6MB    |     On     |    Off    |    On     |    Off    |
   |-----------+------------+-----------+-----------+-----------|
   |    7MB    |    Off     |    On     |    On     |    Off    |
   |-----------+------------+-----------+-----------+-----------|
   |    8MB    |    Off     |    On     |    Off    |    On     |
   |-----------+------------+-----------+-----------+-----------|
   |    9MB    |     On     |    Off    |    Off    |    Off    |
   |-----------+------------+-----------+-----------+-----------|
   |   10MB    |    Off     |    Off    |    On     |    Off    |
   |-----------+------------+-----------+-----------+-----------|
   |   12MB    |     On     |    Off    |    Off    |    On     |
   |-----------+------------+-----------+-----------+-----------|
   |   13MB    |    Off     |    Off    |    Off    |    Off    |
   |-----------+------------+-----------+-----------+-----------|
   |   16MB    |    Off     |    Off    |    Off    |    On     |
   +------------------------------------------------------------+

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

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   | Size  | SW2/7 | SW2/8 |        W8        |       W9        |
   |-------+-------+-------+------------------+-----------------|
   | 64KB  |  Off  |  Off  |    pins 1 & 2    |   pins 1 & 2    |
   |       |       |       |      closed      |     closed      |
   |-------+-------+-------+------------------+-----------------|
   | 128KB |  On   |  On   |    pins 2 & 3    |   pins 1 & 2    |
   |       |       |       |      closed      |     closed      |
   |-------+-------+-------+------------------+-----------------|
   | 256KB |  Off  |  On   |    pins 2 & 3    |   pins 2 & 3    |
   |       |       |       |      closed      |     closed      |
   +------------------------------------------------------------+