
POSITIVE CORPORATION

PC340

Processor         80386DX
Processor Speed   33/40MHz
Chip Set          OPTI
Max. Onboard DRAM 64MB
Cache             32/64/128/256KB
BIOS              AMI/MR
Dimensions        330mm x 218mm
I/O Options       External memory card
NPU Options       80387DX/3167

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  External battery            J10      External memory card        SL1

  Power LED & keylock         J23      Reset switch                SW1

  Speaker                     J24      Turbo switch                SW2

  Turbo LED                   JP4

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

     Password disabled (MR BIOS only)        JP1              Open

      Password enabled (MR BIOS only)         JP1             Closed

     CMOS memory normal operation            JP2           pins 2 & 3
                                                              closed

      CMOS memory clear                       JP2           pins 1 & 2
                                                              closed

     I/O bus speed select ATCLK/6            JP3              Open

      I/O bus speed select ATCLK/8            JP3             Closed

                            DRAM CONFIGURATION

     Size         Bank 0          Bank 1         Bank 2         Bank 3

     1MB        (4) 256K x 9       NONE           NONE           NONE

     2MB        (4) 256K x 9   (4) 256K x 9       NONE           NONE

     4MB        (4) 1M x 9         NONE           NONE           NONE

     5MB        (4) 256K x 9    (4) 1M x 9        NONE           NONE

     8MB        (4) 1M x 9      (4) 1M x 9        NONE           NONE

     12MB       (4) 1M x 9      (4) 1M x 9     (4) 1M x 9        NONE

     16MB       (4) 1M x 9      (4) 1M x 9     (4) 1M x 9     (4) 1M x 9

     16MB       (4) 4M x 9         NONE           NONE           NONE

     20MB       (4) 1M x 9      (4) 4M x 9        NONE           NONE

     20MB       (4) 4M x 9      (4) 1M x 9        NONE           NONE

     24MB       (4) 1M x 9      (4) 1M x 9     (4) 4M x 9        NONE

     24MB       (4) 1M x 9      (4) 4M x 9     (4) 1M x 9        NONE

     24MB       (4) 4M x 9      (4) 1M x 9     (4) 1M x 9        NONE

     28MB       (4) 1M x 9      (4) 1M x 9     (4) 4M x 9     (4) 1M x 9

     28MB       (4) 1M x 9      (4) 4M x 9     (4) 1M x 9     (4) 1M x 9

     28MB       (4) 4M x 9      (4) 1M x 9     (4) 1M x 9     (4) 1M x 9

     32MB       (4) 4M x 9      (4) 4M x 9        NONE           NONE

     36MB       (4) 1M x 9      (4) 4M x 9     (4) 4M x 9        NONE

     36MB       (4) 4M x 9      (4) 1M x 9     (4) 4M x 9        NONE

     36MB       (4) 4M x 9      (4) 4M x 9     (4) 1M x 9        NONE

     40MB       (4) 1M x 9      (4) 1M x 9     (4) 4M x 9     (4) 4M x 9

     40MB       (4) 1M x 9      (4) 4M x 9     (4) 4M x 9     (4) 1M x 9

     40MB       (4) 4M x 9      (4) 1M x 9     (4) 4M x 9     (4) 1M x 9

     40MB       (4) 4M x 9      (4) 4M x 9     (4) 1M x 9     (4) 1M x 9

     48MB       (4) 4M x 9      (4) 4M x 9     (4) 4M x 9        NONE

     52MB       (4) 1M x 9      (4) 4M x 9     (4) 4M x 9     (4) 4M x 9

     52MB       (4) 4M x 9      (4) 1M x 9     (4) 4M x 9     (4) 4M x 9

     52MB       (4) 4M x 9      (4) 4M x 9     (4) 4M x 9     (4) 1M x 9

     64MB       (4) 4M x 9      (4) 4M x 9     (4) 4M x 9     (4) 4M x 9

  Note: Banks 2 & 3 are located on the external memory card.

                           CACHE CONFIGURATION

     Size          Bank 0         Bank 1         TAG 0          TAG 1

     32KB        (4) 8K x 8        NONE       (2) 16K x 4    (1) 16K x 1

     64KB        (4) 8K x 8     (4) 8K x 8    (2) 16K x 4    (1) 16K x 1

     128KB      (4) 32K x 8        NONE       (2) 16K x 4    (1) 16K x 1

     256KB      (4) 32K x 8    (4) 32K x 8    (2) 16K x 4    (1) 16K x 1

                     CACHE JUMPER CONFIGURATION

   Size      JP5      JP6       JP7       JP8      JP9       JP10

   32KB     1 & 2    1 & 2     1 & 2     Open     2 & 3     2 & 3

   64KB     2 & 3    1 & 2     1 & 2     Open     2 & 3     1 & 2

  128KB     2 & 3    1 & 2     2 & 3     Closed   2 & 3     1 & 2

  256KB     2 & 3    2 & 3     2 & 3     Closed   1 & 2     1 & 2

  Note: Pins designated should be in the closed position.

