
UNIDENTIFIED

286LX-A

Processor         80286
Processor Speed   10/12MHz
Chip Set          VLSI
Max. Onboard DRAM 4MB
Cache             None
BIOS              AMI
Dimensions        330mm x 220mm
I/O Options       None
NPU Options       80287

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  Power LED & keylock         J18       Reset switch               J29

  External battery            J22       Turbo LED                 J103

  Speaker                     J23       Turbo switch              J104

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch         Position

     Battery select internal                J28             pins 1 & 2
                                                               closed

      Battery select external                J28             pins 2 & 3
                                                               closed

     Timing mode select fast                J30             pins 1 & 2
                                                               closed

      Timing mode select slow                J30             pins 2 & 3
                                                               closed

     CPU speed select 12MHz                J102             pins 1 & 2
                                                               closed

      CPU speed select 10MHz                J102             pins 2 & 3
                                                               closed

     Monitor type select color             SW1/4                On

      Monitor type select                   SW1/4               Off
      monochrome

             DRAM CONFIGURATION

     Size          Bank 0        Bank 1

     512KB       (18) 41256       NONE

     640KB       (18) 41256     (18) 4164

      1MB        (18) 41256    (18) 41256

      2MB        (18) 411000      NONE

      4MB        (18) 411000   (18) 411000

                      DRAM SPEED CONFIGURATION

         Speed                  J10                    J31

  100ns/0 wait states    pins 1 & 2 closed            Closed

  120ns/1 wait state     pins 2 & 3 closed             Open

      DRAM JUMPER CONFIGURATION

  Size     SW1/1    SW1/2    SW1/3

  512KB     On        On       On

  640KB     Off       On       On

   1MB      On       Off       On

   2MB      Off      Off       On

   4MB      On        On      Off

