MINI MICRO SUPPLY COMPANY

SYSTEM MICRO 386

Processor              80386DX
Processor Speed        16/20MHz
Chip Set               C & T
Max. Onboard DRAM      2MB
Cache                  None
BIOS                   Phoenix
Dimensions             355mm x 304mm
I/O Options            32-bit external memory card, parallel ports (2),
                       serial ports (2), video connector
NPU Options            80287/80387DX

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  VGA connector               J1       Parallel port (LPT2)        J9

  Power LED & keylock         J2       Serial port (COM1)         J10

  Speaker                     J3       Serial port (COM2)         J11

  Parallel port (LPT1)        J6       Light pen connector        J12

  Reset switch                J7       32-bit external             S1
                                       memory card

  External battery            J8

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch         Position

  »   Onboard EGA enabled               SW2/switch 1             On

  »   Onboard EGA disabled              SW2/switch 1            Off

  »   Monitor type select color         SW2/switch 4             On

      Monitor type select               SW2/switch 4            Off
      monochrome

  »   NPU select 80287 or none          SW2/switch 5             On

      NPU select 80387                  SW2/switch 5            Off

  »   Factory configured - do not       SW1/switch 6            Off
      alter

  »   Gate SRED On video connector           W1              pins 1 & 2
                                                               closed

      Gate ground On video                   W1              pins 2 & 3
      connector pin                                            closed

  »   BIOS type select 27128                 W2              pins 1 & 2
                                                               closed

      BIOS type select 27256                 W2              pins 2 & 3
                                                               closed

                            DRAM CONFIGURATION

    Onboard     Bank 0      Bank 1       Exernal       SW2/2      SW2/3
     DRAM                                memory

     1MB          (36)       NONE         NONE          On         On
                 41256

     2MB          (36)      (4) 256K      NONE          On         On
                 41256        x 9

     2MB          (36)      (4) 256K       2MB          Off        On
                 41256        x 9

     2MB          (36)      (4) 256K       8MB          On         Off
                 41256        x 9

     1MB          (36)       NONE         16MB          Off        Off
                 41256

  Note: When external memory is installed, system memory is disabled.

                            SERIAL PORT CONFIGURATION

    COM1       COM2    Interrupt   SW1/1   SW1/2   SW1/5   SW1/6   SW1/7   SW1/8
   (J10)      (J11)

  enabled    enabled      N/A       On      On      On      On      On      On

  enabled    disabled    IRQ4       On      Off     Off    Off     Off      On

  enabled    disabled    IRQ3       On      Off     Off    Off      On     Off

  disabled   enabled     IRQ4       Off     On      On     Off     Off     Off

  disabled   enabled     IRQ3       Off     On      Off     On     Off     Off

  disabled   disabled     N/A       Off     Off     Off    Off     Off     Off

                        PARALLEL PORT CONFIGURATION

       LPT2             LPT3           SW1/Switch 3       SW1/Switch 4

     Enabled           Enabled              On                 On

     Enabled          Disabled             Off                 On

     Disabled          Enabled              On                 Off

     Disabled         Disabled             Off                 Off

  Note:If there is no monochrome adapter then LPT2 will be recognized as
  LPT1 and LPT3 as LPT2.

                        DISPLAY TYPE CONFIGURATION

    Display Type        Primary     Mode   SW3/1   SW3/2    SW3/3   SW3/4
                       Adapter

  Color/monochrome       EGA        80 x    Off     Off     Off      On
      adapter                       25

  Color/monochrome       EGA        40 x    On      Off     Off      On
      adapter                       25

   EGA/monochrome        EGA        CGA     On      On       On     Off
      adapter

   EGA/monochrome        EGA        EGA     Off     On       On     Off
      adapter

   Multi-sync/mono       EGA        EGA     On      On      Off     Off
      adapter

  Color/monochrome    Monochrome    80 x    Off     Off      On      On
      adapter                       25

  Color/monochrome    Monochrome    40 x    On      Off     Off      On
      adapter                       25

  Color/monochrome    Monochrome    CGA     On      On       On     Off
      adapter

   EGA/monochrome     Monochrome    EGA     Off     On       On     Off
      adapter

   Multi-sync/mono    Monochrome    EGA     On      On      Off     Off
      adapter

  EGA/Color adapter      EGA        80 x    Off     Off      On      On
                                    25

  EGA/Color adapter      EGA        40 x    Off     On      Off      On
                                    25

  EGA/Color adapter     Color       80 x    Off     Off     Off      On
                                    25

  EGA/Color adapter     Color       40 x    On      On       On     Off
                                    25