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

   JX30 VL-BUS

   Processor    80486SX/80486DX/ODP486SX/80486DX2/Pentium         
                Overdrive                                         
   Processor    25/33/50(internal)/66(internal)MHz                
   Speed        
   Chip Set     Micronics                                         
   Max. Onboard 64MB                                              
   DRAM         
   Cache        64/128/256KB                                      
   BIOS         Phoenix                                           
   Dimensions   330mm x 218mm                                     
   I/O Options  32-bit VESA local bus slots (2), floppy drive     
                interface,                                        
                                                                  
                IDE interface, parallel port, serial ports (2)    
   NPU Options  None                                              

<gopher://bitreich.org/I/th99/m/M-O/31744-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose            | Location | Purpose         | Location |
   |--------------------+----------+-----------------+----------|
   | IDE interface      |   CN1    | Power LED &     |   J34    |
   |                    |          | keylock         |          |
   |--------------------+----------+-----------------+----------|
   | Floppy drive       |   CN2    | 32-bit VESA     |    S1    |
   | interface          |          | Local bus slot  |          |
   |--------------------+----------+-----------------+----------|
   | External battery   |    J8    | 32-bit VESA     |    S2    |
   |                    |          | Local bus slot  |          |
   |--------------------+----------+-----------------+----------|
   | External keyboard  |   J10    | Hard drive LED  |   W11    |
   | connector          |          |                 |          |
   |--------------------+----------+-----------------+----------|
   | Serial port (COM1) |   J12    | Reset switch    |   W12    |
   |--------------------+----------+-----------------+----------|
   | Parallel port      |   J15    | Turbo LED       |   W13    |
   |--------------------+----------+-----------------+----------|
   | Serial port (COM2) |   J16    | Turbo switch    |   W14    |
   |--------------------+----------+-----------------+----------|
   | Speaker            |   J33    |                 |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |           Function            | Jumper/Switch |  Position  |
   |-------------------------------+---------------+------------|
   |>> | Factory configured - do   | SW1/switch 2  |     On     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   | SW1/switch 3  |    Off     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   | SW1/switch 4  |    Off     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Parallel port             |      W5       | pins 1 & 2 |
   |   | unidirectional (for       |               |   closed   |
   |   | printer)                  |               |            |
   |---+---------------------------+---------------+------------|
   |   | Parallel port             |      W5       | pins 2 & 3 |
   |   | bi-directional            |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | Monitor type select color |      W6       |   Closed   |
   |---+---------------------------+---------------+------------|
   |   | Monitor type select       |      W6       |    Open    |
   |   | monochrome                |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |      W7       |    Open    |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | CMOS memory normal        |      W8       | pins 2 & 3 |
   |   | operation                 |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | CMOS memory clear         |      W8       | pins 1 & 2 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |      W20      | pins 1 & 2 |
   |   | not alter                 |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | DALLAS Real Time Clock    |      W31      |   Closed   |
   |   | memory clear              |               |            |
   |---+---------------------------+---------------+------------|
   |   | Real Time Clock normal    |      W31      |    Open    |
   |   | operation                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Local bus Bus-Mastering   |      W40      |    Open    |
   |   | peripherals enabled       |               |            |
   |---+---------------------------+---------------+------------|
   |   | Local bus Bus-Mastering   |      W40      |   Closed   |
   |   | peripherals disabled      |               |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               REAL TIME CLOCK CONFIGURATION                |
   |------------------------------------------------------------|
   |        Real Time Clock        |             W1             |
   |-------------------------------+----------------------------|
   |    DALLAS Real Time Clock     |           Closed           |
   |-------------------------------+----------------------------|
   |        MOTOROLA 146818        |            Open            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size |   Bank 0    |   Bank 1    |   Bank 2   |   Bank 3   |
   |------+-------------+-------------+------------+------------|
   | 1MB  | (1) 256K x  |    NONE     |    NONE    |    NONE    |
   |      |     36      |             |            |            |
   |------+-------------+-------------+------------+------------|
   | 2MB  | (1) 256K x  | (1) 256K x  |    NONE    |    NONE    |
   |      |     36      |     36      |            |            |
   |------+-------------+-------------+------------+------------|
   | 4MB  | (1) 1M x 36 |    NONE     |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 6MB  | (1) 256K x  | (1) 256K x  |  (1) 1M x  |    NONE    |
   |      |     36      |     36      |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 8MB  | (1) 1M x 36 | (1) 1M x 36 |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 10MB | (1) 256K x  | (1) 256K x  |  (1) 1M x  |  (1) 1M x  |
   |      |     36      |     36      |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 12MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 1M x  |    NONE    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 16MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 1M x  |  (1) 1M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 16MB | (1) 4M x 36 |    NONE     |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 18MB | (1) 256K x  | (1) 256K x  |  (1) 4M x  |    NONE    |
   |      |     36      |     36      |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 20MB | (1) 1M x 36 | (1) 4M x 36 |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 24MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 4M x  |    NONE    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 32MB | (1) 4M x 36 | (1) 4M x 36 |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 36MB | (1) 1M x 36 | (1) 4M x 36 |  (1) 4M x  |    NONE    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 40MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 4M x  |  (1) 4M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 48MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 4M x  |    NONE    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 64MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 4M x  |  (1) 4M x  |
   |      |             |             |     36     |     36     |
   +------------------------------------------------------------+

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

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   | Size  |    W64     |   W65    |   W66    |  W67   |  W68   |
   |-------+------------+----------+----------+--------+--------|
   | 64KB  | pins 1 & 2 | pins 1 & | pins 2 & | pins 2 | pins 1 |
   |       |            |    2     |    3     |  & 3   |  & 2   |
   |-------+------------+----------+----------+--------+--------|
   | 128KB | pins 2 & 3 | pins 1 & | pins 1 & | pins 1 | pins 2 |
   |       |            |    2     |    2     |  & 2   |  & 3   |
   |-------+------------+----------+----------+--------+--------|
   | 256KB | pins 2 & 3 | pins 2 & | pins 2 & | pins 2 | pins 2 |
   |       |            |    3     |    3     |  & 3   |  & 3   |
   |------------------------------------------------------------|
   | Note:Pins designated should be in the closed position.     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU TYPE CONFIGURATION                   |
   |------------------------------------------------------------|
   |        Type        |        W70        |        W71        |
   |--------------------+-------------------+-------------------|
   |      80486SX       | pins 1 & 2 closed |        N/A        |
   |--------------------+-------------------+-------------------|
   |      80486DX       | pins 2 & 3 closed | pins 2 & 3 closed |
   |--------------------+-------------------+-------------------|
   |      ODP486SX      |        N/A        | pins 1 & 2 closed |
   |--------------------+-------------------+-------------------|
   |      80486DX2      | pins 2 & 3 closed | pins 2 & 3 closed |
   |--------------------+-------------------+-------------------|
   | Pentium Overdrive  | pins 2 & 3 closed | pins 2 & 3 closed |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |           Speed            |         SW1/switch 1          |
   |----------------------------+-------------------------------|
   |           25MHz            |              On               |
   |----------------------------+-------------------------------|
   |           33MHz            |              Off              |
   |----------------------------+-------------------------------|
   |          50i MHz           |              On               |
   |----------------------------+-------------------------------|
   |          66i MHz           |              Off              |
   +------------------------------------------------------------+