UNIDENTIFIED

XT TURBO 640K

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             305mm x 216mm
I/O Options            None
NPU Options            8087

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Speaker                     JP1      Turbo switch                Z14

  Reset switch                JP3

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

  »   Factory configured - do not           JP4          Unidentified
      alter (turbo BIOS)

  »   Factory configured - do not          SW1/1              Off
      alter

      NPU not installed                    SW1/2              On

      NPU installed                        SW1/2              Off

                      DRAM CONFIGURATION

    Size       Bank 0       Bank 1       Bank 2       Bank 3

   128KB      (9) 4164       None         None         None

   256KB      (9) 41256      None         None         None

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

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

              DRAM SWITCH CONFIGURATION

       Size             SW1/3             SW1/4

      128KB              Off               On

      192KB              On                Off

  256KB or above         Off               Off

                  FLOPPY DRIVE SELECTION

  Drives installed         SW1/7               SW1/8

         1                  On                  On

         2                  Off                 On

         3                  On                  Off

         4                  Off                 Off

                   MONITOR SELECTION

      Setting            SW1/5              SW1/6

       None                On                 On

  Color (40 x 20)         Off                 On

  Color (80 x 25)          On                Off

    Monochrome            Off                Off