
PACKARD BELL

PB300/PB320 (REV. A)

Processor             80386SX
Processor Speed       25MHz
Chip Set              ACC
Max. onboard DRAM     5MB
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

[Image]

                                CONNECTIONS

  Purpose               Location     Purpose                   Location

  External battery        JBT        Parallel port               JLPT

  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 LED       JHDI       Riser card                   S1

  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 disabled            JGAMS            pins 1 & 2
                                                               closed

      Onboard Game port enabled             JGAMS            pins 2 & 3
                                                               closed

     Onboard IDE interface enabled          JHDC            pins 1 & 2
                                                               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          Open
                                             closed

          Disabled            N/A           pins 2 & 3          N/A
                                             closed

                         SERIAL PORT CONFIGURATION

    Modem        Port B        ISA      JC13     JC24          JMOD
   (JMOD)       (JCOM2)       Modem

  Disabled        COM2        None       N/A     pins 1       Closed
                                                  & 2

  Disabled        COM2        COM1      pins 2   pins 1       Closed
                                         & 3      & 2

  Disabled        COM2        COM3      pins 1   pins 1       Closed
                                         & 2      & 2

    COM1          COM2        None      pins 1   pins 1   Daughterboard
                                         & 2      & 2

    COM3          COM2        None      pins 2   pins 1   Daughterboard
                                         & 3      & 2

  Disabled        COM4        None       N/A     pins 2       Closed
                                                  & 3

  Disabled        COM4        COM1      pins 2   pins 2       Closed
                                         & 3      & 3

  Disabled        COM4        COM3      pins 1   pins 2       Closed
                                         & 2      & 3

    COM1          COM4        None      pins 1   pins 2   Daughterboard
                                         & 2      & 3

    COM3          COM4        None      pins 2   pins 2   Daughterboard
                                         & 3      & 3

  Note: JMOD is closed using a special jumper, JMODJ, which 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         pins 2 & 3
                                           closed             closed

           LPT1            IRQ5           pins 1 & 2         pins 1 & 2
                                           closed             closed

           LPT2            IRQ7           pins 2 & 3         pins 2 & 3
                                           closed             closed

           LPT2            IRQ5           pins 2 & 3         pins 1 & 2
                                           closed             closed

                         DRAM CONFIGURATION

     Size        Bank 0        Bank 1        Bank 2        Bank 3

     1MB        (4) 44256     (4) 44256       NONE          NONE

     3MB        (4) 44256     (4) 44256    (2) 1M x 9       NONE

     5MB        (4) 44256     (4) 44256    (2) 1M x 9    (2) 1M x 9

  Note: Banks 0 & 1 are soldered to the board.

