
PACKARD BELL

PB301 386SXIIE & 386SXIIES (REVISION C) AND PB301-V252

Processor             80386DX
Processor Speed       16/20/25MHz
Chip Set              ACC
Max. onboard DRAM     3MB
SRAM Cache            None
BIOS                  Phoenix
Dimensions            220mm 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           80837SX

[Image]

                                CONNECTIONS

  Purpose               Location     Purpose                   Location

  External battery        BATT       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       Speaker                     JSPK

  IDE interface LED       JHDI       VGA port                    JVGA

  Front panel             JIND       Riser card                   S1
  connector

  Keylock                 JKL

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch         Position

     Onboard battery enabled                JBTS               Open

      Onboard battery disabled               JBTS              Closed

     Onboard floppy drive                   JFDC            pins 1 & 2
      interface select primary                                 closed
      address

      Onboard floppy drive                   JFDC            pins 2 & 3
      interface select secondary                               closed
      address

     Onboard Game port enabled             JGAMS            pins 1 & 2
                                                               closed

      Onboard Game port disabled            JGAMS            pins 2 & 3
                                                               closed

     Onboard IDE interface select           JHDC            pins 1 & 2
      primary address                                          closed

      Onboard IDE interface select           JHDC            pins 2 & 3
      secondary address                                        closed

     PS/2 mouse port enabled                JMRQ              Closed
      (IRQ12)

      PS/2 mouse port disabled               JMRQ               Open

     Pipeline mode enabled                  JPIP              Closed

      Pipeline mode disabled                 JPIP               Open

     Onboard speaker enabled               JSPKS            pins 1 & 2
                                                               closed

      Onboard speaker disabled              JSPKS            pins 2 & 3
                                                               closed

     Monitor type select color              JVD               Closed

      Monitor type select                    JVD                Open
      monochrome

  Note: Some boards have the game port jumper (JGAMS) reversed.

                            DRAM CONFIGURATION

      Size              Bank 0             Bank 1             Bank 2

       1MB            (4) 44256           (4) 44256            NONE

       3MB            (4) 44256           (4) 44256         (2) 1M x 9

  Note:256K x 9 and 4M x 9 SIMMs are not supported. Banks 0 & 1 are
  soldered to the board and should not be altered.

                            VRAM CONFIGURATION

     Size         Bank 0        Parity 0        Bank 1         Parity 1

    256KB        (2) 44256      (2) 41256        NONE         (2) 41256

    512KB        (2) 44256      (2) 41256      (2) 44256      (2) 41256

  Note: Parity sockets are not present on all boards. Bank 0 is soldered
  to the board and should not be altered.

                            VIDEO CONFIGURATION

      Mode         IRQ         Monitor        JINLC     JVGAS      JVRQ

      Enabled     IRQ9      Interlaced       Closed    pins 1    Closed
                                                         & 2

       Enabled     None      Interlaced       Closed    pins 1     Open
                                                         & 2

       Enabled     IRQ9    Non-Interlaced      Open     pins 1    Closed
                                                         & 2

       Enabled     None    Non-Interlaced      Open     pins 1     Open
                                                         & 2

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

                         SERIAL PORT CONFIGURATION

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

   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      Open
                                             & 2       & 2

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

     COM3           COM4         None       pins 2    pins 2      Open
                                             & 3       & 3

  Note:* JMODJ is a special block placed on JMOD itself, connecting pins
  10 and 11 together diagonally. 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 1 & 2
                                           closed             closed

           LPT1            IRQ5           pins 1 & 2         pins 2 & 3
                                           closed             closed

           LPT2            IRQ7           pins 2 & 3         pins 1 & 2
                                           closed             closed

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

