MONOLITHIC SYSTEMS, INC. (COLORADO MSI)

MICROFRAME 486EX

Processor         80486DX
Processor Speed   25/33Mhz
Chip Set          C & T
Max. Onboard DRAM 64MB
Cache             None
BIOS              AMI
Dimensions        355mm x 304mm
I/O Options       None
NPU Options       4167

[Image]

                                CONNECTIONS

  Purpose                   Location     Purpose               Location

  External battery             J1        CPU ready LED            J9

  Power LED & keylock          J2        Auxiliary               J12
                                         keyboard

  Disk acess connector         J3        PS/2 mouse port         J13

  Front panel/ribbon           J7        Speaker                 J28
  cable connector

  Reset switch                 J8

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch        Position

  »   IRQ12 enabled for mouse                J11             pins 1 & 2
                                                              closed

      IRQ12 disabled                         J11             pins 2 & 3
                                                              closed

  »   CPU speed select 25MHz                 J29             pins 1 & 2
                                                              closed

      CPU speed select 33MHz                 J29             pins 2 & 3
                                                              closed

  »   Wait state enabled                     J30              Closed

      Wait state disabled                    J30               Open

  »   Factory configured - do not            J35               Open
      alter

  »   Factory configured - do not            J36               Open
      alter

  »   CMOS memory normal operation           J45               Open

      CMOS memory clear                      J45              Closed

  »   DMA active select high                 J46             pins 1 & 2
                                                              closed

      DMA active select low                  J46             pins 2 & 3
                                                              closed

  »   Factory configured - do not       SW1/switch 1            Off
      alter

  »   Factory configured - do not       SW1/switch 2            Off
      alter

      Factory configured - do not       SW1/switch 3            Off
      alter

  »   Monitor type select color         SW1/switch 4            On

      Monitor type select               SW1/switch 4            Off
      monochrome

                           DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2        Bank 3

     8MB        (2) 4M x 36       NONE           NONE          NONE

     16MB       (2) 4M x 36   (2) 4M x 36        NONE          NONE

     16MB          NONE       (2) 8M x 36        NONE          NONE

     24MB       (2) 4M x 36   (2) 4M x 36    (2) 4M x 36       NONE

     24MB          NONE       (2) 4M x 36    (2) 8M x 36       NONE

     32MB       (2) 4M x 36   (2) 4M x 36    (2) 4M x 36    (2) 4M x 36

     32MB          NONE       (2) 8M x 36    (2) 8M x 36       NONE

     32MB          NONE       (2) 4M x 36    (2) 4M x 36    (2) 8M x 36

     40MB          NONE       (2) 4M x 36    (2) 8M x 36    (2) 8M x 36

     40MB       (2) 4M x 36   (2) 4M x 36    (2) 4M x 36    (2) 8M x 36

     48MB       (2) 4M x 36   (2) 4M x 36    (2) 4M x 36    (2) 8M x 36

     48MB          NONE       (2) 8M x 36    (2) 8M x 36    (2) 8M x 36

     56MB       (2) 4M x 36   (2) 8M x 36    (2) 8M x 36    (2) 8M x 36

     64MB       (2) 8M x 36   (2) 8M x 36    (2) 8M x 36    (2) 8M x 36