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

   PB 386-25 (REVISION D)

   Processor    80386DX                                           
   Processor    25MHz                                             
   Speed        
   Chip Set     Intel                                             
   Max. onboard 8MB                                               
   DRAM         
   Cache        None                                              
   BIOS         Phoenix                                           
   Dimensions   330mm x 240mm                                     
   I/O Options  32-bit expansion slots (2), parallel port, serial 
                ports (2)                                         
   NPU Options  80387/3167                                        

<gopher://bitreich.org/I/th99/m/P-R/31539-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose        |  Location  | Purpose          | Location  |
   |----------------+------------+------------------+-----------|
   | Parallel port  |    J10A    | Reset switch     |    J18    |
   |----------------+------------+------------------+-----------|
   | Serial port 1  | J10B/pins  | Speaker          |    J19    |
   | (9 pin)        |    1-10    |                  |           |
   |----------------+------------+------------------+-----------|
   | Serial port 2  | J10B/pins  | Keylock          |    J20    |
   | (9 pin)        |   11-20    |                  |           |
   |----------------+------------+------------------+-----------|
   | Serial port 2  |    J10C    | 32-bit expansion |  S1 & S2  |
   | (25 pin)       |            | slots            |           |
   |------------------------------------------------------------|
   | Note: J10C is a 25-pin version of serial port 2 (J10B pins |
   | 11-20). Either connector may be used, but not both.        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | Printer acknowledge trailing     |  JP1   | pins 2 & 3 |
   |   | edge                             |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Printer acknowledge leading edge |  JP1   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | NPU disabled                     |  JP6   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | NPU enabled                      |  JP6   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Keyboard reset disabled          |  JP7   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Keyboard reset enabled           |  JP7   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | System type select DOS           |  JP8   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | System type select UNIX          |  JP8   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Monitor type select color        |  JP9   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select monochrome   |  JP9   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | BIOS type select 2764            |  JP10  | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | BIOS type select 27128           |  JP10  | pins 2 & 3 |
   |   |                                  |        |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 SERIAL PORT CONFIGURATION                  |
   |------------------------------------------------------------|
   |      Port 1      | Port 2 (J10B/11-20 or |  JP4   |  JP5   |
   |   (J10B/1-10)    |         J10C)         |        |        |
   |------------------+-----------------------+--------+--------|
   |>>   | COM1/IRQ4  |       COM2/IRQ3       | pins 1 | pins 1 |
   |     |            |                       |  & 2   |  & 2   |
   |-----+------------+-----------------------+--------+--------|
   |     | COM1/IRQ4  |       Disabled        | pins 1 | pins 2 |
   |     |            |                       |  & 2   |  & 3   |
   |-----+------------+-----------------------+--------+--------|
   |     |  Disabled  |       COM2/IRQ3       | pins 2 | pins 1 |
   |     |            |                       |  & 3   |  & 2   |
   |-----+------------+-----------------------+--------+--------|
   |     |  Disabled  |       Disabled        | pins 2 | pins 2 |
   |     |            |                       |  & 3   |  & 3   |
   |------------------------------------------------------------|
   | Note: Pins designated should be in the closed position.    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             PARALLEL PORT (J10A) CONFIGURATION             |
   |------------------------------------------------------------|
   |       LPT        |        JP2         |        JP3         |
   |------------------+--------------------+--------------------|
   |>> |     LPT1     | pins 1 & 2 closed  | pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   |     LPT2     | pins 2 & 3 closed  | pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |   Disabled   | pins 2 & 3 closed  | pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size | Bank 0 | Bank 1 |  JP17  |  JP18  | JP13A  | JP13B  |
   |------+--------+--------+--------+--------+--------+--------|
   | 1MB  |  (4)   |  NONE  | pins 1 | pins 1 |  Open  |  Open  |
   |      | 256K x |        |  & 2   |  & 2   |        |        |
   |      |   9    |        |        |        |        |        |
   |------+--------+--------+--------+--------+--------+--------|
   | 2MB  |  (4)   |  (4)   | pins 1 | pins 1 |  Open  | Closed |
   |      | 256K x | 256K x |  & 2   |  & 2   |        |        |
   |      |   9    |   9    |        |        |        |        |
   |------+--------+--------+--------+--------+--------+--------|
   | 4MB  | (4) 1M |  NONE  | pins 2 | pins 2 | Closed |  Open  |
   |      |  x 9   |        |  & 3   |  & 3   |        |        |
   |------+--------+--------+--------+--------+--------+--------|
   | 8MB  | (4) 1M | (4) 1M | pins 2 | pins 2 | Closed | Closed |
   |      |  x 9   |  x 9   |  & 3   |  & 3   |        |        |
   |------------------------------------------------------------|
   | Note: Pins designated should be in the closed position.    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   RAM TYPE CONFIGURATION                   |
   |------------------------------------------------------------|
   |          Type          |      JP11       |      JP12       |
   |------------------------+-----------------+-----------------|
   |   |      RAS/CAS       |      Open       |      Open       |
   |---+--------------------+-----------------+-----------------|
   |>> |     Fast Paged     |     Closed      |     Closed      |
   |---+--------------------+-----------------+-----------------|
   |   |   Static Column    |      Open       |     Closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  RAM SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |       Speed        |       JP15        |       JP16        |
   |--------------------+-------------------+-------------------|
   |  100ns or faster   | pins 1 & 2 closed | pins 1 & 2 closed |
   |--------------------+-------------------+-------------------|
   | Slower than 100ns  | pins 2 & 3 closed | pins 2 & 3 closed |
   +------------------------------------------------------------+