MAGITRONICS
===========

   A-B341/A-B341Q

   Processor             80386DX                                  
   Processor Speed       33/40MHz                                 
   Chip Set              OPTI                                     
   Max. Onboard DRAM     32MB                                     
   SRAM Cache            32/64/128/256KB                          
   BIOS                  AMI                                      
   Dimensions            330.2mm x 218.4mm                        
   I/O Options           32-bit proprietary expansion slot        
   NPU Options           80387DX/3167                             

<gopher://bitreich.org/I/th99/m/M-O/31442-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose     | Location | Purpose                | Location |
   |-------------+----------+------------------------+----------|
   | External    |   J10    | 32-bit proprietary     |    S1    |
   | battery     |          | expansion slot         |          |
   |-------------+----------+------------------------+----------|
   | Power LED & |   J23    | Reset switch           |   SW1    |
   | keylock     |          |                        |          |
   |-------------+----------+------------------------+----------|
   | Speaker     |   J24    | Turbo switch           |   SW2    |
   |-------------+----------+------------------------+----------|
   | Turbo LED   |   JP4    |                        |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | Monitor type select color        |  JP1   |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select monochrome   |  JP1   |    open    |
   |---+----------------------------------+--------+------------|
   |>> | CMOS memory normal operation     |  JP2   | pins 2 & 3 |
   |   | (Internal battery)               |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | CMOS memory normal operation     |  JP2   |    open    |
   |   | (external battery)               |        |            |
   |---+----------------------------------+--------+------------|
   |   | CMOS memory clear                |  JP2   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Bus speed select iOSC/8          |  JP3   |   closed   |
   |   | (CPU=40MHz)                      |        |            |
   |---+----------------------------------+--------+------------|
   |   | Bus speed select iOSC/6          |  JP3   |    open    |
   |   | (CPU=33MHz)                      |        |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       1MB        |    (4) 256K x 9    |        NONE        |
   |------------------+--------------------+--------------------|
   |       2MB        |    (4) 256K x 9    |    (4) 256K x 9    |
   |------------------+--------------------+--------------------|
   |       4MB        |     (4) 1M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       5MB        |    (4) 256K x 9    |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       8MB        |     (4) 1M x 9     |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       16MB       |     (4) 4M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       20MB       |     (4) 4M x 9     |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       32KB       |     (4) 8K x 8     |        NONE        |
   |------------------+--------------------+--------------------|
   |       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  |  JP5   |  JP6   |  JP7  |   JP8   |  JP9  |  JP10  |
   |-------+--------+--------+-------+---------+-------+--------|
   | 32KB  | 1 & 2  | 1 & 2  | 1 & 2 |  open   | 2 & 3 | 2 & 3  |
   |-------+--------+--------+-------+---------+-------+--------|
   | 64KB  | 2 & 3  | 1 & 2  | 1 & 2 |  open   | 2 & 3 | 1 & 2  |
   |-------+--------+--------+-------+---------+-------+--------|
   | 128KB | 2 & 3  | 1 & 2  | 2 & 3 | closed  | 2 & 3 | 1 & 2  |
   |-------+--------+--------+-------+---------+-------+--------|
   | 256KB | 2 & 3  | 2 & 3  | 2 & 3 | closed  | 1 & 2 | 1 & 2  |
   |------------------------------------------------------------|
   | Notes:Pins designated should be in the closed position.    |
   |                                                            |
   | Jumper J3 is present only on earlier versions of the main  |
   | board                                                      |
   +------------------------------------------------------------+