JC INFORMATION SYSTEMS CORPORATION

HIGH PERFORMANCE 386 (NON-CACHE)

Processor         80386DX
Processor Speed   20/25MHz
Chip Set          C & T
Max. Onboard DRAM 8MB
Cache             None
BIOS              Phoenix
Dimensions        330mm x 218mm
I/O Options       32-bit external memory card slot
NPU Options       80387/3167

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                  Location

  Speaker                    J1        Turbo LED                   J4

  Reset switch               J2        External battery            J9

  Power LED & keylock        J3        32-bit external             S1
                                       memory card

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper          Position

  »   Battery select internal                 J9        pins 3 & 4 closed

      Battery select external                 J9             Closed

  »   Monitor type select color              JP1             Closed

      Monitor type select monochrome         JP1              Open

  »   NPU disabled                           JP2              Open

      NPU enabled                            JP2        pins 1 & 2, 3 & 4
                                                             closed

  »   Factory configured - do not            JP3               N/A
      alter

                      DRAM CONFIGURATION

      Size          Bank 0            P-0           Bank 1

      1MB          (8) 44256       (4) 41256         NONE

      1MB            NONE            NONE        (4) 256K x 9

      2MB          (8) 44256       (4) 41256     (4) 256K x 9

      4MB         (8) 441000      (4) 411000         NONE

      4MB            NONE            NONE         (4) 1M x9

      5MB         (8) 441000      (4) 411000     (4) 256K x 9

      5MB          (8) 44256       (4) 41256      (4) 1M x9

      8MB         (8) 441000      (4) 411000      (4) 1M x9

                         DRAM JUMPER CONFIGURATION

      Function             JP4               JP6               JP7

  Bank 0 as DIPP        pins 1 & 2        pins 3 & 4        pins 2 & 3
  memory                  closed           closed             closed

  Bank 0 as SIMM        pins 3 & 4        pins 1 & 2        pins 1 & 2
  memory                  closed           closed             closed

  Note : When using both DIPP & SIMM together, the DIPPs must be set as
  Bank 0.