MULTIBEST INDUSTRIAL & MANUFACTURING, INC.
==========================================

   MB486EISA

   Processor             80486DX                                  
   Processor Speed       33/50MHz                                 
   Chip Set              Intel                                    
   Max. Onboard DRAM     32MB                                     
   Cache                 64/128KB (on external CPU/SRAM card)     
   BIOS                  Phoenix                                  
   Dimensions            330.4mm x 218.4mm                        
   I/O Options           32-bit external CPU/SRAM card slot       
   NPU Options           None                                     

<gopher://bitreich.org/I/th99/m/M-O/30370-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose       | Location | Purpose              | Location |
   |---------------+----------+----------------------+----------|
   | Reset switch  |    J3    | Speaker              |    J8    |
   |---------------+----------+----------------------+----------|
   | Power LED &   |    J7    | 32-bit external      |    S1    |
   | keylock       |          | CPU/SRAM card        |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | I/O recovery disabled            |   J1   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | I/O recovery enabled             |   J1   |   Closed   |
   |---+----------------------------------+--------+------------|
   |>> | System bus posted write disabled |   J2   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | System bus posted write enabled  |   J2   |   Closed   |
   |---+----------------------------------+--------+------------|
   |>> | Monitor type select monochrome   |   J6   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select color        |   J6   |   Closed   |
   |---+----------------------------------+--------+------------|
   |>> | BIOS mode select normal          |  J10   | pins 1 & 2 |
   |   | operation (+5VPP)                |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | BIOS mode select programmable    |  J10   | pins 2 & 3 |
   |   | (+12VPP)                         |        |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |Size|Bank 0|Bank 1|Bank 2|Bank 3|Bank 4|Bank 5|Bank 6|Bank 7|
   |----+------+------+------+------+------+------+------+------|
   |1MB |256K x| NONE | NONE | NONE | NONE | NONE | NONE | NONE |
   |    |  36  |      |      |      |      |      |      |      |
   |----+------+------+------+------+------+------+------+------|
   |2MB |256K x|256K x| NONE | NONE | NONE | NONE | NONE | NONE |
   |    |  36  |  36  |      |      |      |      |      |      |
   |----+------+------+------+------+------+------+------+------|
   |3MB |256K x|256K x|256K x| NONE | NONE | NONE | NONE | NONE |
   |    |  36  |  36  |  36  |      |      |      |      |      |
   |----+------+------+------+------+------+------+------+------|
   |4MB |256K x|256K x|256K x|256K x| NONE | NONE | NONE | NONE |
   |    |  36  |  36  |  36  |  36  |      |      |      |      |
   |----+------+------+------+------+------+------+------+------|
   |4MB | 1M x | NONE | NONE | NONE | NONE | NONE | NONE | NONE |
   |    |  36  |      |      |      |      |      |      |      |
   |----+------+------+------+------+------+------+------+------|
   |5MB | 1M x | NONE | NONE | NONE |256K x| NONE | NONE | NONE |
   |    |  36  |      |      |      |  36  |      |      |      |
   |----+------+------+------+------+------+------+------+------|
   |6MB | 1M x | NONE | NONE | NONE |256K x|256K x| NONE | NONE |
   |    |  36  |      |      |      |  36  |  36  |      |      |
   |----+------+------+------+------+------+------+------+------|
   |7MB | 1M x | NONE | NONE | NONE |256K x|256K x|256K x| NONE |
   |    |  36  |      |      |      |  36  |  36  |  36  |      |
   |----+------+------+------+------+------+------+------+------|
   |8MB | 1M x | NONE | NONE | NONE |256K x|256K x|256K x|256K x|
   |    |  36  |      |      |      |  36  |  36  |  36  |  36  |
   |----+------+------+------+------+------+------+------+------|
   |8MB | 1M x | 1M x | NONE | NONE | NONE | NONE | NONE | NONE |
   |    |  36  |  36  |      |      |      |      |      |      |
   |----+------+------+------+------+------+------+------+------|
   |9MB | 1M x | 1M x | NONE | NONE |256K x| NONE | NONE | NONE |
   |    |  36  |  36  |      |      |  36  |      |      |      |
   |----+------+------+------+------+------+------+------+------|
   |10MB| 1M x | 1M x | NONE | NONE |256K x|256K x| NONE | NONE |
   |    |  36  |  36  |      |      |  36  |  36  |      |      |
   |----+------+------+------+------+------+------+------+------|
   |11MB| 1M x | 1M x | NONE | NONE |256K x|256K x|256K x| NONE |
   |    |  36  |  36  |      |      |  36  |  36  |  36  |      |
   |----+------+------+------+------+------+------+------+------|
   |12MB| 1M x | 1M x | NONE | NONE |256K x|256K x|256K x|256K x|
   |    |  36  |  36  |      |      |  36  |  36  |  36  |  36  |
   |----+------+------+------+------+------+------+------+------|
   |12MB| 1M x | 1M x | 1M x | NONE | NONE | NONE | NONE | NONE |
   |    |  36  |  36  |  36  |      |      |      |      |      |
   |----+------+------+------+------+------+------+------+------|
   |13MB| 1M x | 1M x | 1M x | NONE |256K x| NONE | NONE | NONE |
   |    |  36  |  36  |  36  |      |  36  |      |      |      |
   |----+------+------+------+------+------+------+------+------|
   |14MB| 1M x | 1M x | 1M x | NONE |256K x|256K x| NONE | NONE |
   |    |  36  |  36  |  36  |      |  36  |  36  |      |      |
   |----+------+------+------+------+------+------+------+------|
   |15MB| 1M x | 1M x | 1M x | NONE |256K x|256K x|256K x| NONE |
   |    |  36  |  36  |  36  |      |  36  |  36  |  36  |      |
   |----+------+------+------+------+------+------+------+------|
   |16MB| 1M x | 1M x | 1M x | NONE |256K x|256K x|256K x|256K x|
   |    |  36  |  36  |  36  |      |  36  |  36  |  36  |  36  |
   |----+------+------+------+------+------+------+------+------|
   |16MB| 1M x | 1M x | 1M x | 1M x | NONE | NONE | NONE | NONE |
   |    |  36  |  36  |  36  |  36  |      |      |      |      |
   |----+------+------+------+------+------+------+------+------|
   |17MB| 1M x | 1M x | 1M x | 1M x |256K x| NONE | NONE | NONE |
   |    |  36  |  36  |  36  |  36  |  36  |      |      |      |
   |----+------+------+------+------+------+------+------+------|
   |18MB| 1M x | 1M x | 1M x | 1M x |256K x|256K x| NONE | NONE |
   |    |  36  |  36  |  36  |  36  |  36  |  36  |      |      |
   |----+------+------+------+------+------+------+------+------|
   |19MB| 1M x | 1M x | 1M x | 1M x |256K x|256K x|256K x| NONE |
   |    |  36  |  36  |  36  |  36  |  36  |  36  |  36  |      |
   |----+------+------+------+------+------+------+------+------|
   |20MB| 1M x | 1M x | 1M x | 1M x |256K x|256K x|256K x|256K x|
   |    |  36  |  36  |  36  |  36  |  36  |  36  |  36  |  36  |
   |----+------+------+------+------+------+------+------+------|
   |20MB| 1M x | 1M x | 1M x | 1M x | 1M x | NONE | NONE | NONE |
   |    |  36  |  36  |  36  |  36  |  36  |      |      |      |
   |----+------+------+------+------+------+------+------+------|
   |24MB| 1M x | 1M x | 1M x | 1M x | 1M x | 1M x | NONE | NONE |
   |    |  36  |  36  |  36  |  36  |  36  |  36  |      |      |
   |----+------+------+------+------+------+------+------+------|
   |28MB| 1M x | 1M x | 1M x | 1M x | 1M x | 1M x | 1M x | NONE |
   |    |  36  |  36  |  36  |  36  |  36  |  36  |  36  |      |
   |----+------+------+------+------+------+------+------+------|
   |32MB| 1M x | 1M x | 1M x | 1M x | 1M x | 1M x | 1M x | 1M x |
   |    |  36  |  36  |  36  |  36  |  36  |  36  |  36  |  36  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     SRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |      Size       |       Intel Turbocache part number       |
   |-----------------+------------------------------------------|
   |      64KB       |                 82485MA                  |
   |-----------------+------------------------------------------|
   |      128KB      |                 82485MB                  |
   |------------------------------------------------------------|
   | Note:Intel Turbocache modules plug into CPU card located   |
   | in slot S1.                                                |
   +------------------------------------------------------------+