
UNIDENTIFIED

286A

Processor              80286
Processor Speed        12/16MHz
Chip Set               C & T
Max. Onboard DRAM      5MB
Cache                  None
BIOS                   AMI
Dimensions             310mm x 218mm
I/O Options            Floppy drive interface, game port, IDE interface,
                       parallel port, serial ports (2)
NPU Options            80287

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Serial port 2               J3       Reset switch                J11

  Serial port 1               J4       Speaker                     J12

  Game port                   J5       Power LED & keylock         J13

  Parallel port               J7       IDE interface               JP9

  Floppy drive interface      J8       Turbo switch               JP23

  Turbo LED                   J10      IDE interface LED          JP28

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

      Monitor type select monochrome          JP2           pins 1 & 2
                                                              closed

      Monitor type select color               JP2           pins 2 & 3
                                                              closed

      Floppy drive interface enabled          JP4           pins 1 & 2
                                                              closed

      Floppy drive interface disabled         JP4           pins 2 & 3
                                                              closed

      CPU low speed CLK select 1/2            JP22            Closed
      ATCLK

      CPU low speed CLK select 1/4            JP22             Open
      CLK2N

                            DRAM CONFIGURATION

   Size     Bank 0       P 0      Bank 1       P 1      Bank 2    Bank 3

  512KB       (4)        (2)       NONE       NONE       NONE      NONE
             44256      41256

  640KB       (4)        (2)      (4) 4464   (2) 4164    NONE      NONE
             44256      41256

   1MB        (4)        (2)        (4)        (2)       NONE      NONE
             44256      41256      44256      41256

   2MB        (4)        (2)        (4)        (2)        (2)       (2)
             44256      41256      44256      41256     256K x     256K x
                                                          9          9

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

   3MB        (4)        (2)        (4)        (2)      (2) 1M     NONE
             44256      41256      44256      41256      x 9

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

   5MB        (4)        (2)        (4)        (2)      (2) 1M     (2) 1M
             44256      41256      44256      41256      x 9        x 9

                            DRAM CONFIGURATION

    Setting        JP10     JP11      JP12     JP13      JP14      JP15

   SIMM set as    1 & 2     1 & 2    1 & 2     1 & 2     1 & 2     1 & 2
   Bank 0 & 1

   SIMM set as    2 & 3     2 & 3    2 & 3     2 & 3     2 & 3     2 & 3
   Bank 2 & 3

  Note: Pins designated should be in the closed position.

         IDE CONFIGURATION

  Setting      JP16        JP17

  Enabled     Closed      Closed

  Disabled     Open        Open

                 PARALLEL PORT CONFIGURATION

         LPT                 JP8                  JP9

        LPT1           pins 1 & 2 closed   pins 2 & 3 closed

        LPT2           pins 1 & 2 closed   pins 1 & 2 closed

        LPT3           pins 2 & 3 closed   pins 1 & 2 closed

      Disabled         pins 2 & 3 closed   pins 2 & 3 closed

                         SERIAL PORT CONFIGURATION

  Serial port     Serial port       JP5            JP6           JP7
       1              2

     COM1            COM2        pins 1 & 2     pins 1 & 2    pins 1 & 2
                                   closed        closed         closed

     COM1          Disabled      pins 1 & 2     pins 2 & 3    pins 1 & 2
                                   closed        closed         closed

     COM2            COM1        pins 2 & 3     pins 1 & 2    pins 1 & 2
                                   closed        closed         closed

   Disabled          COM1        pins 2 & 3     pins 1 & 2    pins 2 & 3
                                   closed        closed         closed

   Disabled          COM2        pins 1 & 2     pins 1 & 2    pins 2 & 3
                                   closed        closed         closed

     COM2          Disabled      pins 2 & 3     pins 2 & 3    pins 1 & 2
                                   closed        closed         closed

   Disabled        Disabled      pins 1 & 2     pins 2 & 3    pins 2 & 3
                                   closed        closed         closed

