UNIDENTIFIED

EAT-12

Processor         80286
Processor Speed   12MHz
Chip Set          None
Max. onboard DRAM 2MB
Cache             None
BIOS              Unknown
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       80287

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  Turbo LED                   JP1       Reset                     JP10

  Power LED & keylock         JP4       Turbo switch              JP12

  External battery            JP8       Speaker                   JP13

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch         Position

  »   BIOS type select 27256                 JP2             pins 1 & 2
                                                               closed

      BIOS type select 27128                 JP2             pins 2 & 3
                                                               closed

  »   Monitor type select color              JP3             pins 2 & 3
                                                               closed

      Monitor type select                    JP3             pins 1 & 2
      monochrome                                               closed

  »   Speed select via keyboard              JP5             pins 1 & 2
      enabled                                                  closed

      Speed select via keyboard              JP5             pins 2 & 3
      disabled                                                 closed

  »   Battery type select onboard            JP7             pins 2 & 3
                                                               closed

      Battery type select external           JP7             pins 1 & 2
                                                               closed

  »   Power good signal detect               JP9             pins 1 & 2
      from board                                               closed

      Power good signal detect               JP9             pins 2 & 3
      from power supply                                        closed

  »   Parity check disabled                 JP14             pins 2 & 3
                                                               closed

      Parity check enabled                  JP14             pins 1 & 2
                                                               closed

  »   Factory configured - do not       SW1/switch 3            Off
      alter

  »   RAM select 0 wait states          SW1/switch 4            Off

      RAM select 1 wait state           SW1/switch 4             On

                      DRAM CONFIGURATION

    Size       Bank 0       Bank 1       Bank 2       Bank 3

   512KB      (4) 44256      NONE         NONE         NONE

   640KB      (4) 44256    (4) 4464       NONE         NONE

   1024KB     (4) 44256    (4) 44256      NONE         NONE

   1152KB     (4) 44256    (4) 44256    (4) 4464       NONE

   1536KB     (4) 44256    (4) 44256   (4) 44256       NONE

   1664KB     (4) 44256    (4) 44256   (4) 44256     (4) 4464

   2048KB     (4) 44256    (4) 44256   (4) 44256    (4) 44256

                         DRAM SWITCH CONFIGURATION

     Size        System RAM     Extended RAM      SW1/1          SW1/2

     512KB          512KB           0KB             On            On

     640KB          640KB           0KB             On            Off

    1024KB          640KB          384KB            On            Off

    1152KB          640KB          512KB           Off            On

    1536KB          640KB          896KB           Off            On

    1664KB          640KB          1024KB          Off            Off

    2048KB          640KB          1408KB          Off            Off