PC'S LIMITED, INC.

TURBO PC

Processor         8088-2
Processor Speed   7.33MHz
Chip Set          None
Max. Onboard DRAM 640KB
Cache             None
BIOS              PC's Ltd.
Dimensions        355mm x 304mm
I/O Options       None
NPU Options       8087

[Image]

                                CONNECTIONS

         Purpose           Location           Purpose            Location

  Speaker                    J2       Reset switch                 JP1

  Turbo LED & Power LED      J3       Alternate DC power plug      P3

  Note:P3 may not be present on all boards.

                        USER CONFIGURABLE SETTINGS

             Function                 Jumper/Switch          Position

      Factory configured - do               J5                 Open
      not alter

  »   CPU speed select fast                 J6               pins 1 & 2
                                                              closed

      CPU speed select slow                 J6               pins 2 & 3
                                                              closed

  »   Self-test disabled                  SW2/1                 On

      Self-test enabled                   SW2/1                 Off

  »   NPU disabled                        SW2/2                 On

      NPU enabled                         SW2/2                 Off

  »   Factory configured - do             SW2/4                 Off
      not alter

      Color adjust                         VC1               Variable

                DRAM CONFIGURATION

    Size        Bank 0       Bank 1      Bank 2

    256KB     (9) 41256       NONE        NONE

    640KB     (9) 41256    (9) 41256    (18) 4164

        DRAM JUMPER CONFIGURATION

        Size                  J4

        256KB         pins 2 & 3 closed

        640KB         pins 1 & 2 closed

                           DRAM SWITCH CONFIGURATION

  Size    SW2/3  SW3/1   SW3/2   SW3/3   SW3/4   SW3/5   SW3/6   SW3/7   SW3/8

  256KB    On     On      Off     On      Off     On     Off      On     Off

  640KB   Off     Off     On      Off     On     Off      On     Off      On

                     DRAM SWITCH CONFIGURATION (CON’T)

  Size    SW4/1   SW4/2    SW4/3   SW4/4   SW4/5   SW4/6    SW4/7   SW4/8

  256KB    On      Off      On     Off      On      Off      On      Off

  640KB    Off     On      Off      On      Off     On      Off      On

                FLOPPY DRIVE CONFIGURATION

  Drives installed         SW2/7               SW2/8

         1                  On                  On

         2                  Off                 On

         3                  On                  Off

         4                  Off                 Off

              MONITOR CONFIGURATION

      Type            SW2/5            SW2/6

   Monochrome          Off              Off

  40 x 25 color        Off               On

  80 x 25 color         On              Off