
LEADING EDGE PRODUCTS, INC.

MODEL D3/25

Processor              80386DX
Processor Speed        25MHz
Chip Set               Unknown
Max. Onboard DRAM      8MB
Cache                  32KB
BIOS                   Phoenix
Dimensions             330mm x 218mm
I/O Options            16-bit external memory card slot, bus mouse port,
                       floppy drive interface (2),

                       IDE interface, parallel port, serial ports (2)
NPU Options            80387DX

[Image]

                                CONNECTIONS

  Purpose               Location     Purpose                   Location

  Bus mouse port          J11        Reset switch/LED            JP7

  Serial port 1           J12        Keylock                     JP8

  Serial port 2           J13        Floppy drive                J23
                                     interface

  Parallel port           J14        Floppy drive                J24
                                     interface

  Speaker                 J15        16-bit external              S1
                                     memory card slot

  Note:The exact locations of J11 - J15, JP7, JP8, JP23 and JP24 are
  unknown.

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Monitor type select monochrome           J1           pins 2 & 3
                                                              closed

      Monitor type select color                J1           pins 1 & 2
                                                              closed

     Floppy drive interface enabled           J3             Closed

      Floppy drive interface disabled          J3              Open

     NPU disabled                            J10           pins 7 & 8
                                                              closed

      NPU enabled                             J10           pins 5 & 6
                                                              closed

     Bus mouse port enabled                  JPA             Closed

      Bus mouse port disabled                 JPA              Open

     Factory configured - do not             JP1              N/A
      alter

     Factory configured - do not             JP2              N/A
      alter

     Factory configured - do not             JP3              N/A
      alter

     Factory configured - do not             JP11             Open
      alter

     Factory configured - do not             JP12            Closed
      alter

     Factory configured - do not             JP13            Closed
      alter

     Factory configured - do not             JP14            Closed
      alter

  Note:The exact locations of J1, J3, J10, JPA, JP12, JP13, and JP14 are
  unknown.

                      DRAM CONFIGURATION

        Size                Bank 0               Bank 1

         4MB              (4) 1M x 9              NONE

         8MB              (4) 1M x 9           (4) 1M x 9

        16MB              (4) 4M x 9              NONE

  Note:The exact locations of Bank 0 and Bank 1 are unknown.

             EXTERNAL MEMORY CONFIGURATION

       Size          JP10/pins 1 & 2   JP10/pins 3 & 4

        4MB              Closed              Open

        8MB               Open              Closed

       16MB              Closed             Closed

                      BUS MOUSE IRQ INTERRUPT SELECT

                 IRQ                                   J2

                  IRQ5                         pins 1 & 5 closed

                   IRQ3                         pins 2 & 6 closed

                   IRQ4                         pins 3 & 7 closed

                   IRQ9                         pins 4 & 8 closed

  Note:The exact location of J2 is unknown.

