
PACKARD BELL

PB 386-25 (REVISION D)

Processor          80386DX
Processor Speed    25MHz
Chip Set           Intel
Max. onboard DRAM  8MB
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

[Image]

                                CONNECTIONS

  Purpose               Location      Purpose                 Location

  Parallel port           J10A        Reset switch              J18

  Serial port 1 (9   J10B/pins 1-10   Speaker                   J19
  pin)

  Serial port 2 (9      J10B/pins     Keylock                   J20
  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 edge         JP1          pins 2 & 3
                                                               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 (J10B/1-10)       Port 2 (J10B/11-20 or      JP4        JP5
                                     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

