
SAMSUNG ELECTRONICS, INC.

S 500

Processor                  80286
Processor Speed            16/20MHz
Chip Set                   Unidentified
Video Chip Set             None
Maximum Onboard Memory     1MB
Maximum Video Memory       None
Cache                      None
BIOS                       Unidentified
Dimensions                 355mm x 304mm
I/O Options                Floppy drive interface, parallel port, serial
                           ports (2)
NPU Options                80287

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Parallel port               CN1      External battery            JP2

  Serial port 1               CN2      Keyboard connector         JP17

  Serial port 2               CN3      Power LED & keylock        JP18

  Floppy drive interface      CN4      Speaker                    JP20

                        USER CONFIGURABLE SETTINGS

                Function                    Label          Position

      Parallel port enabled                  JP1            Closed

      Parallel port disabled                 JP1             Open

      Serial port 1 enabled                  JP3            Closed

      Serial port 1 disabled                 JP3             Open

      Serial port 2 enabled                  JP4            Closed

      Serial port 2 disabled                 JP4             Open

      Floppy drive secondary address         JP5            Closed
      enabled

      Floppy drive primary address           JP5             Open
      enabled

      Floppy drive speed select dual         JP7            Closed
      speed

      Floppy drive speed select single       JP7             Open
      speed

      Precompensation value select           JP8            Closed
      187ns

      Precompensation value select           JP8             Open
      125ns

      DMA CLOCK = DMA CLOCK                 JP13       Pins 1 & 2 closed

      DMA CLOCK = SYS CLOCK                 JP13       Pins 2 & 3 closed

      BIOS type select 27256                JP14       Pins 1 & 2 closed

      BIOS type select 27128                JP14       Pins 2 & 3 closed

      ROM enable signal select XMER         JP15       Pins 1 & 2 closed
      signal

      ROM enable signal select LCSROM       JP15       Pins 2 & 3 closed
      signal

     Factory configured - do not           JP19         Unidentified
      alter

      Monitor type select color              SW1              Up

      Monitor type select monochrome         SW1             Down

                      DRAM CONFIGURATION

    Size       Bank 0       Bank 1       Bank 2       Bank 3

   256KB      (9) 41256      None         None         None

   512KB      (9) 41256    (9) 41256      None         None

   640KB      (9) 41256    (9) 41256    (9) 4164       None

    1MB       (9) 41256    (9) 41256   (9) 41256    (9) 41256

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

                  DRAM JUMPER CONFIGURATION

        Size                 JP10                 JP11

        256KB          Pins 2 & 3 closed   Pins 2 & 3 closed

        512KB          Pins 2 & 3 closed   Pins 1 & 2 closed

        640KB          Pins 1 & 2 closed   Pins 2 & 3 closed

         1MB           Pins 1 & 2 closed   Pins 1 & 2 closed

                     CPU SPEED SELECTION

             Speed                          JP16

             16MHz                          Open

             20MHz                   Pins 1 & 2 closed

  16/20MHz (through keyboard)        Pins 2 & 3 closed

  ON BOARD FLOPPY DRIVE SELECTION

  Setting       JP6         JP9

  Enabled      Closed     Closed

  Disabled      Open       Open

