MODULAR CIRCUIT TECHNOLOGY

MCT-M386-20/25

Processor         80386SX
Processor Speed   20/25MHz
Chip Set          C & T
Max. Onboard DRAM 16MB (8MB on memory board)
Cache             None
BIOS              AMI
Dimensions        330mm x 218mm
I/O Options       32-bit external memory card
NPU Options       80387SX

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                  Location

  External battery           J2        Turbo switch                J8

  Speaker                    J6        Reset switch                J9

  Power LED & keylock        J7        32-bit external            SL1
                                       memory card

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Monitor type select CGA/EGA/VGA          J3            pins 1 & 2
                                                              closed

      Monitor type select monochrome           J3            pins 2 & 3
                                                              closed

  »   Normal CPU speed operation               J4            pins 2 & 3
                                                              closed

      Clock hard wired for a slower            J4            pins 1 & 2
      speed                                                   closed

  »   NPU disabled                             J5            pins 2 & 3
                                                              closed

      NPU enabled                              J5            pins 1 & 2
                                                              closed

  »   Power good signal detect from            J10              N/A
      power supply

      Power good signal detect from            J10              N/A
      board

                            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

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

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

     10MB       (4) 1M x 9     (4) 1M x 9     (4) 256K x 9  (4) 256K x 9

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

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