SAMSUNG ELECTRONICS, INC.

SD 550

Processor              80286 (exact location unidentified)
Processor Speed        12MHz
Chip Set               Unidentified
Maximum Onboard Memory 1MB
Cache                  None
BIOS                   Award
Dimensions             406mm x 406mm
I/O Options            Floppy drive interface, parallel port, serial ports
                       (2)
NPU Options            80287 (exact location unidentified)

[Image]

                               CONNECTIONS

         Function           Label            Function            Label

  Serial port                CN11     Power LED & keylock         J13

  Serial port                CN12     Speaker                     J14

  Parallel port              CN13     External battery            J15

  Keyboard connector         J11      Floppy drive interface      J17

                        USER CONFIGURABLE SETTINGS

                 Setting                      Label          Position

  »   Jumper information unavailable           J12             N/A

      Parallel port enabled                   JP11            Closed

      Parallel port disabled                  JP11             Open

      Floppy drive interface enabled          JP12            Closed

      Floppy drive interface disabled         JP12             Open

      Serial port 1 enabled                   JP13            Closed

      Serial port 1 disabled                  JP13             Open

      Serial port 2 enabled                   JP14            Closed

      Serial port 2 disabled                  JP14             Open

      BIOS type select 27256                  JP15            Closed

      BIOS type select 27128                  JP15             Open

      NPU speed select 16MHz                  JP17          Pins 1 & 2
                                                              closed

      NPU speed select 25MHz                  JP17          Pins 2 & 3
                                                              closed

      Drive type select dual speed            JP19            Closed

      Drive type select single speed          JP19             Open

      Precomp value select 187ns              JP20            Closed

      Precomp value select 125ns              JP20             Open

      Floppy drive address select             JP22            Closed
      secondary

      Floppy drive address select             JP22             Open
      primary

      Monitor type select color               SW10              Up

      Monitor type select monochrome          SW10             Down

                             DRAM

    Size       Bank 0       Bank 1       Bank 2       Bank 3

   640KB      (9) 41256    (9) 41256    (9) 4164     (9) 4164

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

  Note: The orientation of the banks is unidentified.

    DRAM JUMPER

   Size     JP16

  640KB    Closed

   1MB      Open

         DRAM WAIT STATE

     Setting           JP21

  0 wait states       Closed

  1 wait state         Open