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

   PB300/PB320 (REV. B)

   Processor    80386SX                                           
   Processor    25MHz                                             
   Speed        
   Chip Set     ACC                                               
   Max. onboard 5MB                                               
   DRAM         
   Cache        None                                              
   BIOS         Phoenix                                           
   Dimensions   230mm x 220mm                                     
   I/O Options  Fax/modem daughterboard, floppy drive interface,  
                game port, IDE interface, parallel port, PS/2     
                keyboard port, PS/2 mouse port, serial port, VGA  
                port                                              
   NPU Options  80387SX                                           

<gopher://bitreich.org/I/th99/m/P-R/31531-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose        | Location | Purpose             | Location |
   |----------------+----------+---------------------+----------|
   | External       |   JBT    | Parallel port       |   JLPT   |
   | battery        |          |                     |          |
   |----------------+----------+---------------------+----------|
   | Serial port    |  JCOM2   | Proprietary modem   |   JMOD   |
   |                |          | daughterboard       |          |
   |----------------+----------+---------------------+----------|
   | Floppy drive   |   JFDD   | PS/2 keyboard       |   JPKB   |
   | interface      |          |                     |          |
   |----------------+----------+---------------------+----------|
   | Game port      |   JGAM   | PS/2 mouse          |   JPMS   |
   |----------------+----------+---------------------+----------|
   | IDE interface  |   JHDD   | VGA port            |   JVGA   |
   |----------------+----------+---------------------+----------|
   | IDE interface  |   JHDI   | Riser card          |    S1    |
   | LED            |          |                     |          |
   |----------------+----------+---------------------+----------|
   | Front panel    |   JIND   |                     |          |
   | connector      |          |                     |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |           Function            | Jumper/Switch |  Position  |
   |-------------------------------+---------------+------------|
   |>> | Onboard floppy drive      |     JFDC      | pins 1 & 2 |
   |   | interface enabled         |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | Onboard floppy drive      |     JFDC      | pins 2 & 3 |
   |   | interface disabled        |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | Onboard Game port         |     JGAMS     | pins 1 & 2 |
   |   | disabled                  |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | Onboard Game port enabled |     JGAMS     | pins 2 & 3 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | Onboard IDE interface     |     JHDC      | pins 1 & 2 |
   |   | enabled                   |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | Onboard IDE interface     |     JHDC      | pins 2 & 3 |
   |   | disabled                  |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | PS/2 mouse port enabled   |     JMRQ      |   Closed   |
   |   | (IRQ12)                   |               |            |
   |---+---------------------------+---------------+------------|
   |   | PS/2 mouse port disabled  |     JMRQ      |    Open    |
   |---+---------------------------+---------------+------------|
   |>> | Pipeline mode disabled    |     JPIP      |    Open    |
   |---+---------------------------+---------------+------------|
   |   | Pipeline mode enabled     |     JPIP      |   Closed   |
   |---+---------------------------+---------------+------------|
   |>> | Monitor type select color |      JVD      | pins 2 & 3 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | Monitor type select       |      JVD      | pins 1 & 2 |
   |   | monochrome                |               |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                ONBOARD VIDEO CONFIGURATION                 |
   |------------------------------------------------------------|
   |  Onboard Video   |   IRQ   |       JVGAS       |   JVRQ    |
   |------------------+---------+-------------------+-----------|
   |>>  |   Enabled   |  IRQ9   | pins 1 & 2 closed |  Closed   |
   |----+-------------+---------+-------------------+-----------|
   |    |   Enabled   |  None   | pins 1 & 2 closed |   Open    |
   |----+-------------+---------+-------------------+-----------|
   |    |  Disabled   |   N/A   | pins 2 & 3 closed |    N/A    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 SERIAL PORT CONFIGURATION                  |
   |------------------------------------------------------------|
   |   Modem   |  Port B  |  ISA  | JC13 | JC24 |     JMOD      |
   |  (JMOD)   | (JCOM2)  | Modem |      |      |               |
   |-----------+----------+-------+------+------+---------------|
   | Disabled  |   COM2   | None  | N/A  | pins |    Closed     |
   |           |          |       |      | 1 &  |               |
   |           |          |       |      |  2   |               |
   |-----------+----------+-------+------+------+---------------|
   | Disabled  |   COM2   | COM1  | pins | pins |    Closed     |
   |           |          |       | 2 &  | 1 &  |               |
   |           |          |       |  3   |  2   |               |
   |-----------+----------+-------+------+------+---------------|
   | Disabled  |   COM2   | COM3  | pins | pins |    Closed     |
   |           |          |       | 1 &  | 1 &  |               |
   |           |          |       |  2   |  2   |               |
   |-----------+----------+-------+------+------+---------------|
   |   COM1    |   COM2   | None  | pins | pins | Daughterboard |
   |           |          |       | 1 &  | 1 &  |               |
   |           |          |       |  2   |  2   |               |
   |-----------+----------+-------+------+------+---------------|
   |   COM3    |   COM2   | None  | pins | pins | Daughterboard |
   |           |          |       | 2 &  | 1 &  |               |
   |           |          |       |  3   |  2   |               |
   |-----------+----------+-------+------+------+---------------|
   | Disabled  |   COM4   | None  | N/A  | pins |    Closed     |
   |           |          |       |      | 2 &  |               |
   |           |          |       |      |  3   |               |
   |-----------+----------+-------+------+------+---------------|
   | Disabled  |   COM4   | COM1  | pins | pins |    Closed     |
   |           |          |       | 2 &  | 2 &  |               |
   |           |          |       |  3   |  3   |               |
   |-----------+----------+-------+------+------+---------------|
   | Disabled  |   COM4   | COM3  | pins | pins |    Closed     |
   |           |          |       | 1 &  | 2 &  |               |
   |           |          |       |  2   |  3   |               |
   |-----------+----------+-------+------+------+---------------|
   |   COM1    |   COM4   | None  | pins | pins | Daughterboard |
   |           |          |       | 1 &  | 2 &  |               |
   |           |          |       |  2   |  3   |               |
   |-----------+----------+-------+------+------+---------------|
   |   COM3    |   COM4   | None  | pins | pins | Daughterboard |
   |           |          |       | 2 &  | 2 &  |               |
   |           |          |       |  3   |  3   |               |
   |------------------------------------------------------------|
   |         Note: JMOD is closed using a special jumper,       |
   |         JMODJ, that connects pins 10 and 11. Permanent     |
   |         damage to the board will occur if the JMODJ jumper |
   |         is installed improperly.                           |
   |                                                            |
   |      Pins designated should be in the closed position.     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                PARALLEL PORT CONFIGURATION                 |
   |------------------------------------------------------------|
   |    LPT     |  IRQ  |       JLPS        |       JLRQ        |
   |------------+-------+-------------------+-------------------|
   |>> |  LPT1  | IRQ7  | pins 1 & 2 closed | pins 2 & 3 closed |
   |---+--------+-------+-------------------+-------------------|
   |   |  LPT1  | IRQ5  | pins 1 & 2 closed | pins 1 & 2 closed |
   |---+--------+-------+-------------------+-------------------|
   |   |  LPT2  | IRQ7  | pins 2 & 3 closed | pins 2 & 3 closed |
   |---+--------+-------+-------------------+-------------------|
   |   |  LPT2  | IRQ5  | pins 2 & 3 closed | pins 1 & 2 closed |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |     Size     |        Bank 0         |       Bank 1        |
   |--------------+-----------------------+---------------------|
   |    512KB     |     (2) 256K x 9      |        NONE         |
   |--------------+-----------------------+---------------------|
   |     1MB      |     (2) 256K x 9      |    (2) 256K x 9     |
   |--------------+-----------------------+---------------------|
   |     2MB      |      (2) 1M x 9       |        NONE         |
   |--------------+-----------------------+---------------------|
   |    2.5MB     |      (2) 1M x 9       |    (2) 256K x 9     |
   |--------------+-----------------------+---------------------|
   |     4MB      |      (2) 1M x 9       |     (2) 1M x 9      |
   |--------------+-----------------------+---------------------|
   |     8MB      |      (2) 4M x 9       |        NONE         |
   |--------------+-----------------------+---------------------|
   |     12MB     |      (2) 4M x 9       |     (2) 1M x 9      |
   |--------------+-----------------------+---------------------|
   |     16MB     |      (2) 4M x 9       |     (2) 4M x 9      |
   |------------------------------------------------------------|
   |      Note:256K x 9 SIMMs may not be supported on certain   |
   |      boards. Board contains traces for additional SIMM     |
   |      banks. Additional SIMM sockets will not function if   |
   |      installed. A few boards had all 8 SIMM sockets        |
   |      factory installed, in which case BANKS 2 & 3 are      |
   |      non-functional.                                       |
   +------------------------------------------------------------+