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

   ELT-286B-160G

   Processor             80286                                    
   Processor Speed       16MHz                                    
   Chip Set              G-2                                      
   Max. Onboard DRAM     8MB                                      
   Cache                 None                                     
   BIOS                  AMI/Phoenix                              
   Dimensions            220mm x 220mm                            
   I/O Options           None                                     
   NPU Options           80287                                    

<gopher://bitreich.org/I/th99/m/U-Z/30998-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose          | Location | Purpose           | Location |
   |------------------+----------+-------------------+----------|
   | Turbo LED        |    J5    | External battery  |   J24    |
   |------------------+----------+-------------------+----------|
   | Power LED &      |   J18    | Turbo switch      |   J25    |
   | keylock          |          |                   |          |
   |------------------+----------+-------------------+----------|
   | Speaker          |   J19    | Reset switch      |   J30    |
   |------------------------------------------------------------|
   | Note:DRAM chip location and orientation on board is        |
   | unidentified.                                              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |           Function            | Jumper/Switch |  Position  |
   |-------------------------------+---------------+------------|
   |>> | NPU mode select           |      JNP      | pins 1 & 2 |
   |   | synchronous with CPU      |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | NPU mode select           |      JNP      | pins 2 & 3 |
   |   | asynchronous with CPU     |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | Factory configured - do   |      JP3      | pins 1 & 2 |
   |   | not alter                 |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | BIOS type select 27256    |      JP9      | pins 2 & 3 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | BIOS type select 27128    |      JP9      | pins 1 & 2 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | CPU speed select          |      J25      |    Open    |
   |   | switchable from keyboard  |               |            |
   |---+---------------------------+---------------+------------|
   |   | CPU speed select fast     |      J25      |   Closed   |
   |---+---------------------------+---------------+------------|
   |>> | Monitor type select color |     SW1/1     |     On     |
   |---+---------------------------+---------------+------------|
   |   | Monitor type select       |     SW1/1     |    Off     |
   |   | monochrome                |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Factory test disabled     |     SW1/2     |    Off     |
   |   | (AMI BIOS only)           |               |            |
   |---+---------------------------+---------------+------------|
   |   | Factory test enabled (AMI |     SW1/2     |     On     |
   |   | BIOS only)                |               |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |  Size   |   Bank 0   |   Bank 1   |   Bank 2   |  Bank 3   |
   |---------+------------+------------+------------+-----------|
   | 512KB 2 | (16) 41256 |    NONE    |    NONE    |   NONE    |
   |---------+------------+------------+------------+-----------|
   | 512KB 1 |    NONE    |    NONE    | (2) 256K x |   NONE    |
   |         |            |            |     9      |           |
   |---------+------------+------------+------------+-----------|
   |  1MB 2  | (16) 41256 | (16) 41256 |    NONE    |   NONE    |
   |---------+------------+------------+------------+-----------|
   |  1MB 1  |    NONE    |    NONE    | (2) 256K x | (2) 256K  |
   |         |            |            |     9      |    x 9    |
   |---------+------------+------------+------------+-----------|
   | 1.5MB 2 | (16) 41256 | (16) 41256 | (2) 256K x |   NONE    |
   |         |            |            |     9      |           |
   |---------+------------+------------+------------+-----------|
   |  2MB 2  | (16) 41256 | (16) 41256 | (2) 256K x | (2) 256K  |
   |         |            |            |     9      |    x 9    |
   |---------+------------+------------+------------+-----------|
   |  2MB 2  |    (16)    |    NONE    |    NONE    |   NONE    |
   |         |   411000   |            |            |           |
   |---------+------------+------------+------------+-----------|
   |  2MB 1  |    NONE    |    NONE    | (1)1M x 9  |   NONE    |
   |---------+------------+------------+------------+-----------|
   |  4MB 2  |    (16)    |    (16)    |    NONE    |   NONE    |
   |         |   411000   |   411000   |            |           |
   |---------+------------+------------+------------+-----------|
   |  4MB 1  |    NONE    |    NONE    | (1)1M x 9  | (1)1M x 9 |
   |---------+------------+------------+------------+-----------|
   |  5MB 2  | (16) 41256 | (16) 41256 | (1)1M x 9  | (1)1M x 9 |
   |---------+------------+------------+------------+-----------|
   |  5MB 2  |    (16)    |    (16)    | (2) 256K x | (2) 256K  |
   |         |   411000   |   411000   |     9      |    x 9    |
   |---------+------------+------------+------------+-----------|
   |  6MB 2  |    (16)    |    (16)    | (1)1M x 9  |   NONE    |
   |         |   411000   |   411000   |            |           |
   |---------+------------+------------+------------+-----------|
   |  8MB 2  |    (16)    |    (16)    | (1)1M x 9  | (1)1M x 9 |
   |         |   411000   |   411000   |            |           |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DRAM SWITCH CONFIGURATION                  |
   |------------------------------------------------------------|
   |    Size    |   SW1/3   |   SW1/4   |   SW1/5   |   SW1/6   |
   |------------+-----------+-----------+-----------+-----------|
   |  512KB 2   |    Off    |    Off    |    Off    |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |  512KB 1   |    Off    |    Off    |    Off    |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |   1MB 2    |    On     |    Off    |    Off    |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |   1MB 1    |    On     |    Off    |    Off    |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |  1.5MB 2   |    Off    |    On     |    Off    |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |   2MB 2    |    On     |    On     |    Off    |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |   2MB 2    |    Off    |    Off    |    On     |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |   2MB 1    |    Off    |    Off    |    On     |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |   4MB 2    |    On     |    Off    |    On     |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |   4MB 1    |    On     |    Off    |    On     |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |   5MB 2    |    On     |    On     |    Off    |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |   5MB 2    |    On     |    On     |    On     |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |   6MB 2    |    Off    |    Off    |    On     |    Off    |
   |------------+-----------+-----------+-----------+-----------|
   |   8MB 2    |    On     |    On     |    On     |    Off    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DRAM SWITCH CONFIGURATION                  |
   |------------------------------------------------------------|
   |  Size  |  JP1  |  JP2  |  JP3  | JP5  | JP6  | JP7  | JP8  |
   |--------+-------+-------+-------+------+------+------+------|
   | 512KB  | 2 & 3 | 2 & 3 | 1 & 2 | 2 &  | 2 &  | 2 &  | 2 &  |
   |   2    |       |       |       |  3   |  3   |  3   |  3   |
   |--------+-------+-------+-------+------+------+------+------|
   | 512KB  | 1 & 2 | 1 & 2 | 1 & 2 | 1 &  | 1 &  | 1 &  | 1 &  |
   |   1    |       |       |       |  2   |  2   |  2   |  2   |
   |--------+-------+-------+-------+------+------+------+------|
   | 1MB 2  | 2 & 3 | 2 & 3 | 1 & 2 | 2 &  | 2 &  | 2 &  | 2 &  |
   |        |       |       |       |  3   |  3   |  3   |  3   |
   |--------+-------+-------+-------+------+------+------+------|
   | 1MB 1  | 1 & 2 | 1 & 2 | 1 & 2 | 1 &  | 1 &  | 1 &  | 1 &  |
   |        |       |       |       |  2   |  2   |  2   |  2   |
   |--------+-------+-------+-------+------+------+------+------|
   | 1.5MB  | 2 & 3 | 2 & 3 | 1 & 2 | 2 &  | 2 &  | 2 &  | 2 &  |
   |   2    |       |       |       |  3   |  3   |  3   |  3   |
   |--------+-------+-------+-------+------+------+------+------|
   | 2MB 2  | 2 & 3 | 2 & 3 | 1 & 2 | 2 &  | 2 &  | 2 &  | 2 &  |
   |        |       |       |       |  3   |  3   |  3   |  3   |
   |--------+-------+-------+-------+------+------+------+------|
   | 2MB 2  | 2 & 3 | 2 & 3 | 1 & 2 | 2 &  | 2 &  | 2 &  | 2 &  |
   |        |       |       |       |  3   |  3   |  3   |  3   |
   |--------+-------+-------+-------+------+------+------+------|
   | 2MB 1  | 1 & 2 | 1 & 2 | 1 & 2 | 1 &  | 1 &  | 1 &  | 1 &  |
   |        |       |       |       |  2   |  2   |  2   |  2   |
   |--------+-------+-------+-------+------+------+------+------|
   | 4MB 2  | 2 & 3 | 2 & 3 | 1 & 2 | 2 &  | 2 &  | 2 &  | 2 &  |
   |        |       |       |       |  3   |  3   |  3   |  3   |
   |--------+-------+-------+-------+------+------+------+------|
   | 4MB 1  | 1 & 2 | 1 & 2 | 1 & 2 | 1 &  | 1 &  | 1 &  | 1 &  |
   |        |       |       |       |  2   |  2   |  2   |  2   |
   |--------+-------+-------+-------+------+------+------+------|
   | 5MB 2  | 2 & 3 | 2 & 3 | 2 & 3 | 2 &  | 2 &  | 2 &  | 2 &  |
   |        |       |       |       |  3   |  3   |  3   |  3   |
   |--------+-------+-------+-------+------+------+------+------|
   | 5MB 2  | 2 & 3 | 2 & 3 | 2 & 3 | 2 &  | 2 &  | 2 &  | 2 &  |
   |        |       |       |       |  3   |  3   |  3   |  3   |
   |--------+-------+-------+-------+------+------+------+------|
   | 6MB 2  | 2 & 3 | 2 & 3 | 1 & 2 | 2 &  | 2 &  | 2 &  | 2 &  |
   |        |       |       |       |  3   |  3   |  3   |  3   |
   |--------+-------+-------+-------+------+------+------+------|
   | 8MB 2  | 2 & 3 | 2 & 3 | 1 & 2 | 2 &  | 2 &  | 2 &  | 2 &  |
   |        |       |       |       |  3   |  3   |  3   |  3   |
   +------------------------------------------------------------+