UNIDENTIFIED

VLSI 89402-1

Processor              80286
Processor Speed        12MHz
Chip Set               VLSI
Video Chip Set         None
Maximum Onboard Memory 4MB
Maximum Video Memory   None
Cache                  None
BIOS                   AMI/Award
Dimensions             330mm x 218mm
I/O Options            None
NPU Options            80287

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                   Location

  Turbo LED                  JP10      Power LED & keylock        JP15

  Turbo switch               JP11      External battery           JP17

  Speaker                    JP14      Reset switch               JP21

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

      Monitor type select color             JP4             Closed

      Monitor type select monochrome        JP4              Open

      Turbo enabled                        JP11             Closed

      Turbo disabled & switchable          JP11              Open
      through keyboard (CRTL, ALT,
      +/-)

      ROM wait state select 2 wait          JP9             Closed
      states

      ROM wait state select 1 wait          JP9              Open
      state

  »   Battery type select internal         JP16             Closed

      Battery type select external         JP16              Open

  »   BIOS type select 27128               JP18              Open

      BIOS type select 27256               JP18             Closed

  »   Fast mode enabled                    JP19             Closed

      Fast mode disabled                   JP19              Open

      Wait state select 0 wait             JP20             Closed
      states

      Wait state select 1 wait state       JP20              Open

  »   Factory configured - do not          JP22          Unidentified
      alter

  »   Factory configured - do not          JP23          Unidentified
      alter

      Parity check disabled                JP24        Pins 1 & 2 closed

      Parity check enabled                 JP24        Pins 2 & 3 closed

                            DRAM CONFIGURATION

     Size          Bank 0         Bank 1         Bank 2         Bank 3

    512KB        (18) 41256        None           None           None

    512KB           None           None         (2) 256K x       None
                                                    9

    640KB        (18) 41256      (18) 4164        None           None

     1MB         (18) 41256     (18) 41256        None           None

     1MB            None           None         (2) 256K x    (2) 256K x
                                                    9             9

     2MB            None           None        (2) 1M x 9        None

     2MB        (18) 411000        None           None           None

     4MB        (18) 411000     (18) 411000       None           None

     4MB            None           None        (2) 1M x 9     (2) 1M x 9

  Note: The location of banks 0, 1, 2 & 3 are unidentified.

       DRAM JUMPER CONFIGURATION

   Size      JP1       JP2       JP3

  512KB     Closed   Closed    Closed

  640KB     Closed    Open     Closed

   1MB      Closed   Closed     Open

   2MB      Closed    Open      Open

   4MB       Open    Closed    Closed

  CPU SPEED SELECTION

   Speed        JP12

  6/12MHz       Open

  8/12MHz      Closed