COMPAQ COMPUTER CORPORATION
===========================

   DESKPRO 286 PORTABLE

   Processor             80286                                    
   Processor Speed       8MHz                                     
   Chip Set              ETEQ                                     
   Max. Onboard DRAM     640KB                                    
   Cache                 None                                     
   BIOS                  Compaq                                   
   Dimensions            330mm x 218mm                            
   I/O Options           None                                     
   NPU Options           80287                                    

<gopher://bitreich.org/I/th99/m/C-D/30717-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose              | Location | Purpose       | Location |
   |----------------------+----------+---------------+----------|
   | Speaker              |   J109   | Floppy drive  |   J114   |
   |                      |          | power         |          |
   |----------------------+----------+---------------+----------|
   | External battery     |   J110   | Floppy drive  |   J115   |
   |                      |          | power         |          |
   |----------------------+----------+---------------+----------|
   | Proprietary keyboard |   J111   | Main power    |   J116   |
   | connector            |          |               |          |
   |----------------------+----------+---------------+----------|
   | Monitor power        |   J112   | Keylock       |   J117   |
   |----------------------+----------+---------------+----------|
   | Fixed drive power    |   J113   | Onboard power |   LED1   |
   |                      |          | LED           |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | Monitor type select Compaq       |   ED   | pins 2 & 3 |
   |   | graphics/color                   |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select monochrome   |   ED   | pins 1 & 2 |
   |   | other than Compaq                |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |   EM   | pins 1 & 2 |
   |   | alter                            |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | CPU speed select switchable at   |   ES   | pins 1 & 2 |
   |   | keyboard                         |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | CPU speed select forced slow     |   ES   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |   Size    |    Bank 0     |     Bank 1     |   Jumper MS   |
   |-----------+---------------+----------------+---------------|
   |   256KB   |   (18) 4164   |   (18) 4164    |  pins 1 & 2   |
   |           |               |                |    closed     |
   |-----------+---------------+----------------+---------------|
   |   512KB   |     NONE      |   (18) 41256   |  pins 1 & 2   |
   |           |               |                |    closed     |
   |-----------+---------------+----------------+---------------|
   |   640KB   |   (18) 4164   |   (18) 41256   |  pins 2 & 3   |
   |           |               |                |    closed     |
   |------------------------------------------------------------|
   | Note: Boards that come from the manufacturer with 640KB    |
   | installed have a different memory PAL chip installed than  |
   | those that come with 256KB. This chip allows the user to   |
   | disable bank 0 and use only bank 1, thus enabling the      |
   | system to use older software that will not work on systems |
   | with more than 512KB.                                      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |           BIOS (ROM SET 1) JUMPER CONFIGURATION            |
   |------------------------------------------------------------|
   |   ROM type    |   Size   | Speed |     Jumper block E      |
   |---------------+----------+-------+-------------------------|
   |    | Static   |  8K x 8  | 250ns | pins 10 & 11, 13 & 14,  |
   |    |          |          |       |   and 16 & 17 closed    |
   |----+----------+----------+-------+-------------------------|
   |>>  | Static   | 16K x 8  | 250ns | pins 10 & 11, 14 & 15,  |
   |    |          |          |       |   and 16 & 17 closed    |
   |----+----------+----------+-------+-------------------------|
   |    | Static   | 32K x 8  | 250ns | pins 11 & 12, 14 & 15,  |
   |    |          |          |       |   and 16 & 17 closed    |
   |----+----------+----------+-------+-------------------------|
   |    | Dynamic  |  8K x 8  | 150ns | pins 10 & 11, 13 & 14,  |
   |    |          |          |       |   and 17 & 18 closed    |
   |----+----------+----------+-------+-------------------------|
   |    | Dynamic  | 16K x 8  | 150ns | pins 10 & 11, 14 & 15,  |
   |    |          |          |       |   and 17 & 18 closed    |
   |----+----------+----------+-------+-------------------------|
   |    | Dynamic  | 32K x 8  | 150ns | pins 11 & 12, 14 & 15,  |
   |    |          |          |       |   and 17 & 18 closed    |
   |------------------------------------------------------------|
   | Note: Settings are accomplished by cutting the conductors  |
   | on the bottom of the board and re-soldering the indicated  |
   | locations                                                  |
   |                                                            |
   | WARNING : Modifying the factory configurations will void   |
   | the manufacturers warranty!                                |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               ROM SET 2 JUMPER CONFIGURATION               |
   |------------------------------------------------------------|
   |   ROM type    |   Size   | Speed |     Jumper block E      |
   |---------------+----------+-------+-------------------------|
   |    | Static   |  8K x 8  | 250ns | pins 4 & 5, 7 & 8, and  |
   |    |          |          |       |     19 & 20 closed      |
   |----+----------+----------+-------+-------------------------|
   |    | Static   | 16K x 8  | 250ns | pins 4 & 5, 8 & 9, and  |
   |    |          |          |       |     19 & 20 closed      |
   |----+----------+----------+-------+-------------------------|
   |    | Static   | 32K x 8  | 250ns | pins 5 & 6, 8 & 9, and  |
   |    |          |          |       |     19 & 20 closed      |
   |----+----------+----------+-------+-------------------------|
   |    | Dynamic  |  8K x 8  | 150ns | pins 4 & 5, 7 & 8, and  |
   |    |          |          |       |     20 & 21 closed      |
   |----+----------+----------+-------+-------------------------|
   |    | Dynamic  | 16K x 8  | 150ns | pins 4 & 5, 8 & 9, and  |
   |    |          |          |       |     20 & 21 closed      |
   |----+----------+----------+-------+-------------------------|
   |>>  | Dynamic  | 32K x 8  | 150ns | pins 5 & 6, 8 & 9, and  |
   |    |          |          |       |     20 & 21 closed      |
   |------------------------------------------------------------|
   | Note: Settings are accomplished by cutting the conductors  |
   | on the bottom of the board and re-soldering the            |
   | connections at the indicated locations                     |
   |                                                            |
   | WARNING : Modifying the factory configurations will void   |
   | the manufacturers warranty!                                |
   +------------------------------------------------------------+