MONOLITHIC SYSTEMS, INC. (COLORADO MSI)
=======================================

   MICROFRAME 486EX

   Processor         80486DX                                      
   Processor Speed   25/33Mhz                                     
   Chip Set          C & T                                        
   Max. Onboard DRAM 64MB                                         
   Cache             None                                         
   BIOS              AMI                                          
   Dimensions        355mm x 304mm                                
   I/O Options       None                                         
   NPU Options       4167                                         

<gopher://bitreich.org/I/th99/m/M-O/31796-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose            | Location | Purpose         | Location |
   |--------------------+----------+-----------------+----------|
   | External battery   |    J1    | CPU ready LED   |    J9    |
   |--------------------+----------+-----------------+----------|
   | Power LED &        |    J2    | Auxiliary       |   J12    |
   | keylock            |          | keyboard        |          |
   |--------------------+----------+-----------------+----------|
   | Disk acess         |    J3    | PS/2 mouse port |   J13    |
   | connector          |          |                 |          |
   |--------------------+----------+-----------------+----------|
   | Front panel/ribbon |    J7    | Speaker         |   J28    |
   | cable connector    |          |                 |          |
   |--------------------+----------+-----------------+----------|
   | Reset switch       |    J8    |                 |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |           Function            | Jumper/Switch |  Position  |
   |-------------------------------+---------------+------------|
   |>> | IRQ12 enabled for mouse   |      J11      | pins 1 & 2 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | IRQ12 disabled            |      J11      | pins 2 & 3 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | CPU speed select 25MHz    |      J29      | pins 1 & 2 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | CPU speed select 33MHz    |      J29      | pins 2 & 3 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | Wait state enabled        |      J30      |   Closed   |
   |---+---------------------------+---------------+------------|
   |   | Wait state disabled       |      J30      |    Open    |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |      J35      |    Open    |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |      J36      |    Open    |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | CMOS memory normal        |      J45      |    Open    |
   |   | operation                 |               |            |
   |---+---------------------------+---------------+------------|
   |   | CMOS memory clear         |      J45      |   Closed   |
   |---+---------------------------+---------------+------------|
   |>> | DMA active select high    |      J46      | pins 1 & 2 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | DMA active select low     |      J46      | pins 2 & 3 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   | SW1/switch 1  |    Off     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   | SW1/switch 2  |    Off     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |   | Factory configured - do   | SW1/switch 3  |    Off     |
   |   | not alter                 |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Monitor type select color | SW1/switch 4  |     On     |
   |---+---------------------------+---------------+------------|
   |   | Monitor type select       | SW1/switch 4  |    Off     |
   |   | monochrome                |               |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size |   Bank 0    |   Bank 1    |   Bank 2   |   Bank 3   |
   |------+-------------+-------------+------------+------------|
   | 8MB  | (2) 4M x 36 |    NONE     |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 16MB | (2) 4M x 36 | (2) 4M x 36 |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 16MB |    NONE     | (2) 8M x 36 |    NONE    |    NONE    |
   |------+-------------+-------------+------------+------------|
   | 24MB | (2) 4M x 36 | (2) 4M x 36 |  (2) 4M x  |    NONE    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 24MB |    NONE     | (2) 4M x 36 |  (2) 8M x  |    NONE    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 32MB | (2) 4M x 36 | (2) 4M x 36 |  (2) 4M x  |  (2) 4M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 32MB |    NONE     | (2) 8M x 36 |  (2) 8M x  |    NONE    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 32MB |    NONE     | (2) 4M x 36 |  (2) 4M x  |  (2) 8M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 40MB |    NONE     | (2) 4M x 36 |  (2) 8M x  |  (2) 8M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 40MB | (2) 4M x 36 | (2) 4M x 36 |  (2) 4M x  |  (2) 8M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 48MB | (2) 4M x 36 | (2) 4M x 36 |  (2) 4M x  |  (2) 8M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 48MB |    NONE     | (2) 8M x 36 |  (2) 8M x  |  (2) 8M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 56MB | (2) 4M x 36 | (2) 8M x 36 |  (2) 8M x  |  (2) 8M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 64MB | (2) 8M x 36 | (2) 8M x 36 |  (2) 8M x  |  (2) 8M x  |
   |      |             |             |     36     |     36     |
   +------------------------------------------------------------+