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.