
UNIDENTIFIED

8MHZ SYSTEM BOARD

Processor              8088
Processor Speed        4.77/8MHz
Chip Set               Unidentified
Video Chip Set         None
Maximum Onboard Memory 640KB
Maximum Video Memory   None
Cache                  None
BIOS                   Unidentified
Dimensions             330mm x 218mm
I/O Options            None
NPU Options            8087

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Reset switch                JP1      Speaker                     JP4

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     Factory configured - do not alter      SW1/1             Off

      NPU not installed                      SW1/2              On

      NPU installed                          SW1/2             Off

                            DRAM CONFIGURATION

  Note: The location of the banks are unidentified. The number and type
  of memory chips is unidentified.

  DRAM SWITCH CONFIGURATION

   Size     SW1/3     SW1/4

  128KB      Off       On

  192KB       On       Off

  256KB      Off       Off

                   DRAM JUMPER CONFIGURATION

              Size                            JP3

      4164 chips installed             Pins 2 & 3 closed

  41256 & 4164 chips installed         Pins 1 & 2 closed

  CPU SPEED SELECTION

   Speed        JP2

  4.77MHz      Closed

    8MHz        Open

                  FLOPPY DRIVE SELECTION

  Drives installed         SW1/7               SW1/8

         1                  On                  On

         2                  Off                 On

         3                  On                  Off

         4                  Off                 Off

                   MONITOR SELECTION

    Multiplier           SW1/5              SW1/6

       None                On                 On

  Color (40 x 20)         Off                 On

  Color (80 x 25)          On                Off

    Monochrome            Off                Off

