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

   486/25

   Processor         80486DX                                      
   Processor Speed   25MHz                                        
   Chip Set          Micronics                                    
   Max. Onboard DRAM 16MB                                         
   Cache             64/128/256KB                                 
   BIOS              Phoenix                                      
   Dimensions        355mm x 304mm                                
   I/O Options       None                                         
   NPU Options       4167                                         

<gopher://bitreich.org/I/th99/m/M-O/31857-1.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     |
   |---+---------------------------+---------------+------------|
   |>> | On board BIOS enabled     |     SW1/2     |    Off     |
   |---+---------------------------+---------------+------------|
   |   | External BIOS enabled     |     SW1/2     |     On     |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |     SW1/3     |     On     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | External cache enabled    |     SW1/4     |     On     |
   |---+---------------------------+---------------+------------|
   |   | External cache disabled   |     SW1/4     |    Off     |
   |---+---------------------------+---------------+------------|
   |>> | BIOS relocation disabled  |     SW1/5     |    Off     |
   |---+---------------------------+---------------+------------|
   |   | BIOS relocation enabled   |     SW1/5     |     On     |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |     SW1/6     |    Off     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Monitor type select       |     SW1/7     |     On     |
   |   | color, CGA, EGA, or VGA   |               |            |
   |---+---------------------------+---------------+------------|
   |   | Monitor type select       |     SW1/7     |    Off     |
   |   | monochrome                |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |     SW1/8     |    Off     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |     SW2/5     |    Off     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | D00000-EFFFFF cacheable   |     SW2/6     |    Off     |
   |---+---------------------------+---------------+------------|
   |   | D00000-EFFFFF             |     SW2/6     |     On     |
   |   | non-cacheable             |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |      W1       |    N/A     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |      W2       | pins 2 & 3 |
   |   | not alter                 |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |      W3       |    N/A     |
   |   | not alter                 |               |            |
   |------------------------------------------------------------|
   | Note:The exact location of W2 is unknown.                  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |Size|Bank 0 |Bank 1 |Bank 2 |Bank 3 |SW1/1|SW1/2|SW1/3|SW1/4|
   |----+-------+-------+-------+-------+-----+-----+-----+-----|
   |1MB |(4)256K| NONE  | NONE  | NONE  | On  | On  | On  | On  |
   |    |  x 9  |       |       |       |     |     |     |     |
   |----+-------+-------+-------+-------+-----+-----+-----+-----|
   |2MB |(4)256K|(4)256K| NONE  | NONE  | Off | On  | On  | On  |
   |    |  x 9  |  x 9  |       |       |     |     |     |     |
   |----+-------+-------+-------+-------+-----+-----+-----+-----|
   |3MB |(4)256K|(4)256K|(4)256K| NONE  | On  | Off | On  | On  |
   |    |  x 9  |  x 9  |  x 9  |       |     |     |     |     |
   |----+-------+-------+-------+-------+-----+-----+-----+-----|
   |4MB |(4)256K|(4)256K|(4)256K|(4)256K| Off | Off | On  | On  |
   |    |  x 9  |  x 9  |  x 9  |  x 9  |     |     |     |     |
   |----+-------+-------+-------+-------+-----+-----+-----+-----|
   |4MB |(4)1M x| NONE  | NONE  | NONE  | On  | On  | Off | On  |
   |    |   9   |       |       |       |     |     |     |     |
   |----+-------+-------+-------+-------+-----+-----+-----+-----|
   |5MB |(4)256K|(4)1M x| NONE  | NONE  | On  | On  | Off | Off |
   |    |  x 9  |   9   |       |       |     |     |     |     |
   |----+-------+-------+-------+-------+-----+-----+-----+-----|
   |6MB |(4)256K|(4)256K|(4)1M x| NONE  | On  | Off | On  | Off |
   |    |  x 9  |  x 9  |   9   |       |     |     |     |     |
   |----+-------+-------+-------+-------+-----+-----+-----+-----|
   |7MB |(4)256K|(4)256K|(4)256K|(4)1M x| Off | On  | On  | Off |
   |    |  x 9  |  x 9  |  x 9  |   9   |     |     |     |     |
   |----+-------+-------+-------+-------+-----+-----+-----+-----|
   |8MB |(4)1M x|(4)1M x| NONE  | NONE  | Off | On  | Off | On  |
   |    |   9   |   9   |       |       |     |     |     |     |
   |----+-------+-------+-------+-------+-----+-----+-----+-----|
   |9MB |(4)256K|(4)1M x|(4)1M x| NONE  | On  | Off | Off | Off |
   |    |  x 9  |   9   |   9   |       |     |     |     |     |
   |----+-------+-------+-------+-------+-----+-----+-----+-----|
   |10MB|(4)256K|(4)256K|(4)1M x|(4) 1M | Off | Off | On  | Off |
   |    |  x 9  |  x 9  |   9   |  x 9  |     |     |     |     |
   |----+-------+-------+-------+-------+-----+-----+-----+-----|
   |12MB|(4)1M x|(4)1M x|(4)1M x| NONE  | On  | Off | Off | On  |
   |    |   9   |   9   |   9   |       |     |     |     |     |
   |----+-------+-------+-------+-------+-----+-----+-----+-----|
   |13MB|(4)256K|(4)1M x|(4)1M x|(4)1M x| Off | Off | Off | Off |
   |    |  x 9  |   9   |   9   |   9   |     |     |     |     |
   |----+-------+-------+-------+-------+-----+-----+-----+-----|
   |16MB|(4)1M x|(4)1M x|(4)1M x|(4)1M x| Off | Off | Off | On  |
   |    |   9   |   9   |   9   |   9   |     |     |     |     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |    Size    |    Bank 0     |    Bank 1     |      TAG      |
   |------------+---------------+---------------+---------------|
   |    64KB    |  (4) 8K x 8   |  (4) 8K x 8   |  (1) 32K x 8  |
   |------------+---------------+---------------+---------------|
   |   128KB    |  (4) 32K x 8  |     NONE      |  (1) 32K x 8  |
   |------------+---------------+---------------+---------------|
   |   256KB    |  (4) 32K x 8  |  (4) 32K x 8  |  (1) 32K x 8  |
   |------------------------------------------------------------|
   | Note:The exact location of the TAG chip is unknown.        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 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      |
   +------------------------------------------------------------+