PACKARD BELL
============

   PB800/900 (REVISION D)

   Processor         80286                                        
   Processor Speed   8/10MHz                                      
   Chip Set          C & T                                        
   Max. onboard DRAM 2MB                                          
   SRAM Cache        None                                         
   BIOS              Phoenix                                      
   Dimensions        330mm x 240mm                                
   I/O Options       32-bit memory expansion slot                 
   NPU Options       80287                                        

<gopher://bitreich.org/I/th99/m/P-R/31551-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose            | Location | Purpose         | Location |
   |--------------------+----------+-----------------+----------|
   | Diagnostics header |   DIAG   | 32-bit memory   |    S1    |
   |                    |          | expansion slot  |          |
   |--------------------+----------+-----------------+----------|
   | Keyboard           |   KBD    | Speaker         |   SPK    |
   |--------------------+----------+-----------------+----------|
   | Power LED &        |   KLK    | Turbo LED       |   TLD    |
   | keylock            |          |                 |          |
   |--------------------+----------+-----------------+----------|
   | Reset              |   RST    |                 |          |
   |------------------------------------------------------------|
   |      Note:The diagnostics header is used in preproduction, |
   |      and no aftermarket technical information is available |
   |      on its usage.                                         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |           Function            | Jumper/Switch |  Position  |
   |-------------------------------+---------------+------------|
   |>> | Monitor type select color |      C/M      | pins 1 & 2 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | Monitor type select       |      C/M      | pins 2 & 3 |
   |   | monochrome                |               |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    SPEED CONFIGURATION                     |
   |------------------------------------------------------------|
   |      Speed       |        U17         |        J19         |
   |------------------+--------------------+--------------------|
   |       8MHz       |       Empty        | pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |      10MHz       |  30-32MHz crystal  | pins 3 & 4 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size |  Bank 0   |   Parity 0   |  Bank 1   |   Parity 1   |
   |      |           |     (P0)     |           |     (P1)     |
   |------+-----------+--------------+-----------+--------------|
   | 1MB  | (8) 44256 |  (4) 41256   |   NONE    |     NONE     |
   |------+-----------+--------------+-----------+--------------|
   | 2MB  | (8) 44256 |  (4) 41256   | (8) 44256 |  (4) 41256   |
   |------------------------------------------------------------|
   | Note:Banks are soldered to the board.                      |
   +------------------------------------------------------------+