
INFORMTECH INTERNATIONAL, INC.

IT386LM CACHE


Processor         80386DX
Processor Speed   33/40MHz
Chip Set          Headland
Max. Onboard DRAM 32MB
Cache             32/128KB
BIOS              AMI
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       80387/3167


[Image]

                                CONNECTIONS

  Purpose                    Location   Purpose                  Location

  External battery            JP105     Turbo LED                  P3

  Auxiliary keyboard          JP107     Reset switch               P7

  Speaker                      P1       Turbo switch               P8

  Power LED & keylock          P2

                        USER CONFIGURABLE SETTINGS

                 Function                     Jumper         Position

     I/O recovery delay (for slower           JP13            Open
      cards) disabled

      I/O recovery delay (for slower           JP13           Closed
      cards) enabled

     CPU speed select 33MHz                  JP101          pins 1 & 2
                                                              closed

      CPU speed select 40MHz                  JP101          pins 2 & 3
                                                              closed

     NPU mode select synchronous with        JP102            Open
      CPU

      NPU mode select asynchronous with       JP102           Closed
      CPU

     CMOS memory normal operation            JP104            Open

      CMOS memory clear                       JP104           Closed

     Battery select internal 3.6VDC          JP106          pins 1 & 3
      with current limiting resistor                          closed

      Battery select internal 4.5VDC          JP106          pins 3 & 4
      alkaline                                                closed

      Battery select external 6VDC            JP106          pins 2 & 4
                                                              closed

      Battery select external 6VDC with       JP106          pins 1 & 2
      current limiting resistor                               closed

     Monitor type select color                 P4            Closed

      Monitor type select monochrome            P4             Open

  Note:Jumpers JP101 and JP102 may not be present on all board revisions.

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       NONE

      2MB         (4) 256K x 9   (4) 256K x 9

      4MB         (4) 1M x 9         NONE

      5MB         (4) 256K x 9    (4) 1M x 9

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

      16MB        (4) 4M x 9         NONE

      17MB        (4) 256K x 9    (4) 4M x 9

      20MB        (4) 1M x 9      (4) 4M x 9

      32MB        (4) 4M x 9      (4) 4M x 9

     CACHE CONFIGURATION

     Size          Bank 0

     32KB        (4) 8K x 8

     128KB      (4) 32K x 8

                   CACHE JUMPER CONFIGURATION

              Size                            JP10

              32KB                           Closed

             128KB                            Open

  Note:Jumper JP10 may be named JP100 on some board revisions.

