BIOSTAR MICROTECH INTERNATIONAL CORPORATION
===========================================

   MB-2500SX

   Processor        80386SX                                       
   Processor Speed  16/20/25MHz                                   
   Chip Set         C & T                                         
   Max. Onboard     16MB                                          
   DRAM             
   Cache            None                                          
   BIOS             AMI                                           
   Dimensions       284mm x 175mm                                 
   I/O Options      16-bit riser card slot, floppy drive          
                    interface, IDE interface, serial ports (2),   
                    parallel port/external floppy drive port      
   NPU Options      80387                                         

<gopher://bitreich.org/I/th99/m/A-B/31130-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose             | Location | Purpose        | Location |
   |---------------------+----------+----------------+----------|
   | External power      |   CN2    | IDE drive      |  JP1-4   |
   |                     |          | interface LED  |          |
   |---------------------+----------+----------------+----------|
   | Serial port 2       |   CN3    | Power LED      |  JP1-5   |
   |---------------------+----------+----------------+----------|
   | Serial port 1       |   CN4    | Network        |  JP1-6   |
   |                     |          | activity LED   |          |
   |---------------------+----------+----------------+----------|
   | Parallel            |   CN5    | Network        |  JP1-7   |
   | port/external       |          | activity LED   |          |
   | floppy drive port   |          |                |          |
   |---------------------+----------+----------------+----------|
   | IDE drive interface |   CN6    | Floppy drive   |  JP8-1   |
   |                     |          | interface LED  |          |
   |---------------------+----------+----------------+----------|
   | Floppy disk         |   CN7    | Floppy disk    |  JP8-2   |
   | interface           |          | eject button   |          |
   |---------------------+----------+----------------+----------|
   | 16-bit riser card   |   CN9    | Power switch   |   PW1    |
   |---------------------+----------+----------------+----------|
   | Turbo switch        |  JP1-1   | Floppy drive   |   PW2    |
   |                     |          | power          |          |
   |---------------------+----------+----------------+----------|
   | Turbo LED           |  JP1-2   | IDE drive      |   PW3    |
   |                     |          | power          |          |
   |---------------------+----------+----------------+----------|
   | Reset switch        |  JP1-3   |                |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |                Function                | Jumper | Position |
   |----------------------------------------+--------+----------|
   |>> | Battery type select internal       |   J4   |  Closed  |
   |---+------------------------------------+--------+----------|
   |   | Battery type select external       |   J4   |   Open   |
   |---+------------------------------------+--------+----------|
   |>> | Monitor type select color          | SW1/3  |    On    |
   |---+------------------------------------+--------+----------|
   |   | Monitor type select monochrome     | SW1/3  |   Off    |
   |---+------------------------------------+--------+----------|
   |>> | External floppy drive select A: /  | SW1/4  |    On    |
   |   | Internal floppy drive select B:    |        |          |
   |---+------------------------------------+--------+----------|
   |   | External floppy drive select B: /  | SW1/4  |   Off    |
   |   | Internal floppy drive select A:    |        |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       1MB        |    (2) 256K x 9    |    (2) 256K x 9    |
   |------------------+--------------------+--------------------|
   |       2MB        |     (2) 1M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       4MB        |     (2) 1M x 9     |     (2) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       8MB        |     (2) 4M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       10MB       |     (2) 4M x 9     |     (2) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       16MB       |     (2) 4M x 9     |     (2) 4M x 9     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                PARALLEL PORT CONFIGURATION                 |
   |------------------------------------------------------------|
   |      Setting       |       SW1/1       |       SW1/2       |
   |--------------------+-------------------+-------------------|
   |  LPT2 at 378-37F   |        On         |        Off        |
   |--------------------+-------------------+-------------------|
   |  LPT3 at 378-37F   |        Off        |        On         |
   +------------------------------------------------------------+