UNIDENTIFIED

TURBO-640

Processor         8088
Processor Speed   8MHz
Chip Set          None
Max. Onboard DRAM 640KB
Cache             None
BIOS              Unidentified
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       8087

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Reset switch                JP1      Turbo LED                   JP4

  Keylock                     JP2      Speaker                     JP5

  Turbo switch                JP3

                        USER CONFIGURABLE SETTINGS

               Function                     Switch           Position

  »   Factory configured - do not            SW1/1              Off
      alter

  »   NPU disabled                           SW1/2              On

      NPU enabled                            SW1/2              Off

                       DRAM CONFIGURATION

    Size        Bank 0       Bank 1      Bank 2       Bank 3

    128KB     (9) 41256       NONE        NONE         NONE

    192KB     (9) 41256       NONE        NONE         NONE

    256KB     (9) 41256       NONE        NONE         NONE

    512KB     (9) 41256    (9) 41256      NONE         NONE

    576KB     (9) 41256    (9) 41256    (9) 4164       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      Off       Off

  512KB      Off       Off

  576KB      Off       Off

  640KB      Off       Off

                FLOPPY DRIVE CONFIGURATION

  Drives installed         SW1/7               SW1/8

         1                  On                  On

         2                  Off                 On

         3                  On                  Off

         4                  Off                 Off

                MONITOR CONFIGURATION

       Type             SW1/5             SW1/6

  None installed         On                On

  80 x 25 color          On                Off

    Monochrome           Off               Off