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

   ALI 386 SYSTEM BOARD (3DIAD-1.1)

   Processor         AM386SX/80386SX/CX486DLC                     
   Processor Speed   33/40MHz                                     
   Chip Set          ALI                                          
   Max. Onboard DRAM 32MB                                         
   Cache             64/128/256KB                                 
   BIOS              AMI                                          
   Dimensions        254mm x 218 mm                               
   I/O Options       None                                         
   NPU Options       80387SX/3167                                 

<gopher://bitreich.org/I/th99/m/U-Z/32912-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose                | Location | Purpose     | Location |
   |------------------------+----------+-------------+----------|
   | Reset switch           |    J5    | Power LED & |    J8    |
   |                        |          | keylock     |          |
   |------------------------+----------+-------------+----------|
   | Speaker                |    J6    | External    |    J4    |
   |                        |          | battery     |          |
   |------------------------+----------+-------------+----------|
   | Turbo switch/LED       |    J7    |             |          |
   | connector              |          |             |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | Monitor type select color        |  JP1   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select monochrome   |  JP1   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JP2   | pins 2 & 3 |
   |   | alter                            |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JP3   |    Open    |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JP7   | pins 1 & 2 |
   |   | alter                            |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JP8   | pins 2 & 3 |
   |   | alter                            |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | NPU type select 80387            |  JP9   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | NPU type select Weitek 3167      |  JP9   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |------------------------------------------------------------|
   | Note: The locations of JP2, JP3, JP7, and JP8 are          |
   | unidentified.                                              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     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        |
   |------------------+--------------------+--------------------|
   |       8MB        |     (4) 1M x 9     |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       16MB       |     (4) 4M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |    Size    |    Bank 0     |    Bank 1     |      TAG      |
   |------------+---------------+---------------+---------------|
   |    64KB    |  (4) 8K x 8   |  (4) 8K x 8   |  (1) 8K x 8   |
   |------------+---------------+---------------+---------------|
   |   128KB    |  (4) 32K x 8  |     NONE      |  (1) 8K x 8   |
   |------------+---------------+---------------+---------------|
   |   256KB    |  (4) 32K x 8  |  (4) 32K x 8  |  (1) 32K x 8  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   | Size  |              JP5               |        JP6        |
   |-------+--------------------------------+-------------------|
   | 64KB  |              Open              | pins 1 & 2 closed |
   |-------+--------------------------------+-------------------|
   | 128KB |    pins 1 & 2, 3 & 4 closed    | pins 2 & 3 closed |
   |-------+--------------------------------+-------------------|
   | 256KB |    pins 1 & 2, 3 & 4, 5 & 6    | pins 1 & 2 closed |
   |       |             closed             |                   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     NPU CONFIGURATION                      |
   |------------------------------------------------------------|
   |    Select     |     JP10     |     JP11     |     JP12     |
   |---------------+--------------+--------------+--------------|
   |   Installed   |    Closed    |    Closed    |    Closed    |
   |---------------+--------------+--------------+--------------|
   | Not installed |     Open     |     Open     |     Open     |
   +------------------------------------------------------------+