UNIDENTIFIED
============

   ACE - 386SX - AR1

   Processor         80386SX (exact location unknown)             
   Processor Speed   16/20/25/33MHz                               
   Chip Set          Acer                                         
   Max. Onboard DRAM 16MB                                         
   Cache             None                                         
   BIOS              AMI                                          
   Dimensions        220mm x 220mm                                
   I/O Options       None                                         
   NPU Options       80387SX (exact location unknown)             

<gopher://bitreich.org/I/th99/m/U-Z/32632-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose          | Location | Purpose           | Location |
   |------------------+----------+-------------------+----------|
   | External battery |    J4    | Turbo switch      | J8 pins  |
   |                  |          |                   |  1 - 3   |
   |------------------+----------+-------------------+----------|
   | Reset switch     |    J6    | Turbo LED         | J8 pins  |
   |                  |          |                   |  4 - 5   |
   |------------------+----------+-------------------+----------|
   | Speaker          |    J7    | Power LED &       |    J9    |
   |                  |          | keylock           |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | ADS delay disabled               |   J5   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | ADS delay enabled                |   J5   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | NPU synchronous with CPU         |  JP2   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | NPU asynchronous with CPU        |  JP2   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JP3   |    N/A     |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Monitor type select monochrome   |  JP4   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select color        |  JP4   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Parity check disabled            |  JP6   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | Parity check enabled             |  JP6   |   Closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size  |   Bank 0    |   Bank 1   |   Bank 2   |   Bank 3   |
   |-------+-------------+------------+------------+------------|
   | 512KB | (1) 256K x  | (1) 256K x |    NONE    |    NONE    |
   |       |      9      |     9      |            |            |
   |-------+-------------+------------+------------+------------|
   |  1MB  | (1) 256K x  | (1) 256K x | (1) 256K x | (1) 256K x |
   |       |      9      |     9      |     9      |     9      |
   |-------+-------------+------------+------------+------------|
   |  2MB  | (1) 1M x 9  | (1) 1M x 9 |    NONE    |    NONE    |
   |-------+-------------+------------+------------+------------|
   |  4MB  | (1) 1M x 9  | (1) 1M x 9 | (1) 1M x 9 | (1) 1M x 9 |
   |-------+-------------+------------+------------+------------|
   |  8MB  | (1) 4M x 9  | (1) 4M x 9 |    NONE    |    NONE    |
   |-------+-------------+------------+------------+------------|
   | 16MB  | (1) 4M x 9  | (1) 4M x 9 | (1) 4M x 9 | (1) 4M x 9 |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |      Speed       |        JP1         |        JP5         |
   |------------------+--------------------+--------------------|
   |      16MHz       | pins 1 & 2 closed  | pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |      20MHz       | pins 2 & 3 closed  | pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |      25MHz       | pins 1 & 2 closed  | pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |      33MHz       | pins 2 & 3 closed  | pins 2 & 3 closed  |
   +------------------------------------------------------------+