AMERICAN MEGATRENDS, INC.

286 MOTHERBOARD

Processor              80286
Processor Speed        8/10/12MHz
Chip Set               Unidentified
Video Chip Set         None
Maximum Onboard Memory 1MB
Maximum Video Memory   None
Cache                  None
BIOS                   AMI
Dimensions             330mm x 218mm
I/O Options            None
NPU Options            80287

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  Speaker                   J24        Reset switch        J29 pins 1 & 2

  Power LED & keylock       J26        Turbo LED           J29 pins 3 & 4

  Reset switch              J28

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

  »   Factory configured - do not           J15          Unidentified
      alter

      ROM wait state select 2 wait          J17             Closed
      states

      ROM wait state select 1 wait          J17              Open
      state

      Monitor type select color             J23             Closed

      Monitor type select monochrome        J23              Open

      I/O wait state enabled                J27             Closed

      I/O wait state disabled               J27              Open

                   DRAM CONFIGURATION

       Size             Bank 0             Bank 1

      512KB           (18) 41256            None

      640KB           (18) 41256         (18) 4164

       1MB            (18) 41256         (18) 41256

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

  DRAM JUMPER CONFIGURATION

   Size      J21       J22

  512KB     Closed   Closed

  640KB      Open    Closed

   1MB      Closed    Open

        RAM WAIT STATE SELECTION

  Wait state       J16          J18

      0           Open         Closed

      1          Closed         Open

                        BIOS SELECTION

        Type                 J30                  J31

        27128          Pins 1 & 2 closed   Pins 1 & 2 closed

        27256                Open          Pins 1 & 2 closed

        27512          Pins 2 & 3 closed   Pins 2 & 3 closed