DIAMOND FLOWER, INC.

RACER-286

Processor         80286 (exact location unknown)
Processor Speed   6/12.5MHz
Chip Set          Suntac
Max. Onboard DRAM 4MB
Cache             None
BIOS              Unidentified
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       80287

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Power LED & keylock         J20      External battery           JP12

  Turbo LED                   JP8      Reset switch                JP6

  Speaker                    JP10

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch        Position

  »   Wait state select 0 wait               JP5              Closed
      states

      Wait state select 1 wait               JP5               Open
      state

  »   Clock speed control keyboard           JP9             pins 1 & 2
                                                              closed

      Clock speed control DIP                JP9             pins 2 & 3
      switch                                                  closed

  »   On board battery enabled              JP11              Closed

      On board battery disabled             JP11               Open

  »   Monitor type select color             SW1/2               On

      Monitor type select                   SW1/2               Off
      monochrome

  »   Parity check enabled                  SW1/3               On

      Parity check disabled                 SW1/3               Off

  »   Port address select 0E8H              SW1/4               On

      Port address select 098H              SW1/4               Off

  »   BIOS type select 27128                SW1/5               On

      BIOS type select 27256                SW1/5               Off

                            DRAM CONFIGURATION

     Size         Bank 0          Bank 1         Bank 2         Bank 3

    512KB       (16) 41256         NONE           NONE           NONE

    512KB          NONE            NONE        (4) 44256         NONE

    640KB       (16) 41256      (16) 4164         NONE           NONE

     1MB        (16) 41256      (16) 41256        NONE           NONE

     1MB           NONE            NONE        (4) 44256      (4) 44256

     2MB        (16) 411000        NONE           NONE

     4MB        (16) 411000    (16) 411000        NONE           NONE

  Note: When installing the above chips, do not use sockets IC9, IC21,
  IC36 & IC45.

                  DRAM CONFIGURATION (PARITY CHIP)

     Size       IC9, IC21    IC36, IC45    U38 - U39     U40 - U41

    512KB       (2) 41256       NONE          NONE          NONE

    512KB         NONE          NONE       (2) 41256        NONE

    640KB       (2) 41256     (2) 4164        NONE          NONE

     1MB        (2) 41256     (2) 41256       NONE          NONE

     1MB          NONE          NONE       (2) 41256     (2) 41256

     2MB       (2) 411000       NONE          NONE          NONE

     4MB       (2) 411000    (2) 411000       NONE          NONE

  Note:This section is used only if parity chips are installed.

                         DRAM SWITCH CONFIGURATION

  Size    SW1/6    SW1/7    SW1/8    Conventional   Extended    Expanded

  512KB     On       On      On         512KB          0KB         0KB

  640KB     On       On      Off        640KB          0KB         0KB

   1MB      On      Off      On         640KB         384KB        0KB

   1MB      On      Off      Off        640KB          0KB        384KB

   2MB     Off       On      On         640KB        1408KB        0KB

   2MB     Off       On      Off        640KB          0KB       1408KB

   4MB     Off      Off      On         640KB        3456KB        0KB

   4MB     Off      Off      Off        640KB          0KB       3456KB

    CPU SPEED CONFIGURATION

   Speed      JP7       SW1/1

   6MHz       Open       On

  12.5MHz    Closed      Off

                  KEYBOARD BIOS CONFIGURATION

  Connector      JP1          JP2          JP3          JP4

    8742        pin 32       pin 27      pin 23        pin30