
KT TECHNOLOGY PTE LTD.

KT333OP3C-WB/BI PQFP 386DX MAINBOARD

Processor         80386DX
Processor Speed   25/33/40MHz
Chip Set          VLSI
Max. Onboard DRAM 32MB
Cache             32/64/128/256KB
BIOS              AMI
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       80387DX/3167

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                 Location

  External battery            J17       Turbo LED & turbo          J22
                                        switch

  Power LED & keylock         J20       Reset switch               J23

  Speaker                     J21

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Normal operation                         W1              Open

      Manufacturer testing                     W1             Closed

     Monitor type select color                W2            pins 1 & 2
                                                              closed

      Monitor type select monochrome           W2            pins 2 & 3
                                                              closed

     Bus clock speed select 4                 W3            pins 1 & 2
                                                              closed

      Bus clock speed select 3                 W3            pins 2 & 3
                                                              closed

     Factory configured - do not alter        W4               N/A

     CMOS memory normal operation             W5            pins 1 & 2
                                                              closed

      CMOS memory clear                        W5            pins 2 & 3
                                                              closed

     NPU input clock select external          W6            pins 1 & 2
      oscillation for 80387                                   closed

      NPU input clock select internal          W6            pins 2 & 3
      oscillation for 80386                                   closed

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       NONE

      2MB         (4) 256K x 9   (4) 256K x 9

      4MB         (4) 1M x 9         NONE

      5MB         (4) 256K x 9    (4) 1M x 9

      8MB         (4) 1M x 9      (4) 1M x 9

      16MB        (4) 4M x 9         NONE

      20MB        (4) 1M x 9      (4) 4M x 9

      20MB        (4) 4M x 9      (4) 1M x 9

      32MB        (4) 4M x 9      (4) 4M x 9

                            CACHE CONFIGURATION

       Size              Bank 0            Bank 1              TAG

       32KB            (4) 8K x 8           NONE            (3) 4K x 4

       64KB            (4) 8K x 8        (4) 8K x 8         (3) 4K x 4

       128KB          (4) 32K x 8           NONE           (3) 16K x 4

       256KB          (4) 32K x 8        (4) 32K x 8       (3) 16K x 4

  Note: The location of Bank 0 and Bank 1 are unidentified. The location
  of the Tag is unidentified.

                  CACHE JUMPER CONFIGURATION

  Size      W7       W8       W9      W10      W11      W12

  32KB     1 & 2   1 & 2    1 & 2    1 & 2    1 & 2    1 & 2

  64KB     1 & 2   1 & 2    1 & 2    1 & 2    2 & 3    2 & 3

  128KB    2 & 3   2 & 3    1 & 2    1 & 2    2 & 3    2 & 3

  256KB    2 & 3   2 & 3    2 & 3    2 & 3    2 & 3    2 & 3

