
EDOM INTERNATIONAL CORPORATION

486VL3 (MV026)

Processor  CX486M6/80486SX/80487SX/CX486M7/80486DX/80486DX2/80486DX4/ Pentium
           Overdrive
Processor  25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set   OPTI
Max.       128MB
Onboard
DRAM
Cache      64/128/256KB
BIOS       AMI/Award
Dimensions 254mm x 220mm
I/O        32-bit VESA local bus slots (3), green PC connector
Options
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                 Location    Purpose                   Location

  External battery           J1       Speaker                     JP18

  Power LED & keylock        J2       Green PC connector          JP32

  Turbo switch              JP16      Reset switch                 S1

  Turbo LED                 JP17      32-bit VESA local bus    SL1 - SL3
                                      slots

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     CMOS memory normal operation            JP26          pins 2 & 3
                                                              closed

      CMOS memory clear                       JP26          pins 1 & 2
                                                              closed

     Cyrix M7 clock speed select 1x          JP27          pins 1 & 2
                                                              closed

      Cyrix M7 clock speed select 2x          JP27          pins 2 & 3
                                                              closed

      Other CPU types                         JP27             Open

     Monitor type select monochrome          JP30             Open

      Monitor type select color               JP30            Closed

     Factory configured - do not             JP37             N/A
      alter

                            DRAM CONFIGURATION

     Size          Bank 0        Bank 1         Bank 2         Bank 3

     2MB         (1) 256K x     (1) 256K x       NONE           NONE
                     36            36

     2MB         (1) 512K x       NONE           NONE           NONE
                     36

     4MB        (1) 1M x 36       NONE           NONE           NONE

     4MB         (1) 256K x     (1) 256K x     (1) 256K x   (1) 256K x 36
                     36            36             36

     4MB         (1) 512K x       NONE         (1) 512K x       NONE
                     36                           36

     8MB        (1) 1M x 36    (1) 1M x 36       NONE           NONE

     10MB        (1) 256K x     (1) 256K x    (1) 1M x 36    (1) 1M x 36
                     36            36

     10MB        (1) 512K x       NONE        (1) 2M x 36       NONE
                     36

     16MB       (1) 4M x 36       NONE           NONE           NONE

     16MB       (1) 1M x 36    (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

     16MB       (1) 2M x 36       NONE        (1) 2M x 36       NONE

     32MB       (1) 4M x 36       NONE        (1) 4M x 36       NONE

     32MB       (1) 4M x 36    (1) 4M x 36       NONE           NONE

     64MB       (1) 16M x 36      NONE           NONE           NONE

     64MB       (1) 4M x 36    (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

    128MB       (1) 16M x 36      NONE        (1) 16M x 36      NONE

    128MB       (1) 16M x 36   (1) 16M x 36      NONE           NONE

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

     64KB        (4) 8K x 8     (4) 8K x 8    (1) 8K x 8

     128KB      (4) 32K x 8        NONE       (1) 8K x 8

     256KB      (4) 32K x 8    (4) 32K x 8    (1) 16K x 8

     256KB      (4) 32K x 8    (4) 32K x 8    (1) 32K x 8

                        CACHE JUMPER CONFIGURATION

     Size          JP10          JP11           JP13            JP35

     64KB          Open          Open         pins 2 & 3      pins 1 & 2
                                               closed          closed

    128KB          Open         Closed        pins 1 & 2      pins 1 & 2
                                               closed          closed

    256KB         Closed        Closed        pins 2 & 3      pins 2 & 3
                                               closed          closed

    256KB         Closed        Closed        pins 2 & 3      pins 1 & 2
                                               closed          closed

                          CPU TYPE CONFIGURATION

      Type            JP3            JP5           JP8           JP9

     CX486M6          Open          Open        pins 2 & 3    pins 1 & 2
                                                 closed         closed

     80486SX          Open          Open        pins 2 & 3       Open
                                                 closed

     80487SX       pins 2 & 3     pins 2 & 3    pins 1 & 2       Open
                     closed        closed        closed

     CX486M7       pins 1 & 2     pins 2 & 3    pins 1 & 2       Open
                     closed        closed        closed

     80486DX       pins 1 & 2     pins 2 & 3    pins 1 & 2       Open
                     closed        closed        closed

    80486DX2       pins 1 & 2     pins 2 & 3    pins 1 & 2       Open
                     closed        closed        closed

    80486DX4       pins 1 & 2     pins 2 & 3    pins 1 & 2       Open
                     closed        closed        closed

      P24D         pins 1 & 2     pins 2 & 3    pins 1 & 2       Open
                     closed        closed        closed

     Pentium       pins 1 & 2     pins 2 & 3    pins 1 & 2    pins 2 & 3
    Overdrive        closed        closed        closed         closed

                      CPU TYPE CONFIGURATION (CONT)

      Type           JP12       JP22       JP23        JP45        JP50

     CX486M6         Open      1 & 2       Open        Open       2 & 3

     80486SX         Open      1 & 2       Open       Closed       Open

     80487SX         Open      1 & 2       Open       Closed       Open

     CX486M7         Open      1 & 2       Open        Open       2 & 3

     80486DX         Open      1 & 2       Open       Closed       Open

    80486DX2         Open      1 & 2       Open       Closed       Open

    80486DX4         Open      1 & 2       Open       Closed       Open

      P24D          Closed     1 & 2      Closed      Closed      1 & 2

     Pentium         Open      2 & 3       Open       Closed       Open
    Overdrive

  Note: Pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

       Type               JP24              JP25               JP36

  Non SL-enhanced         Open              Open               Open

    SL-enhanced          Closed            Closed             Closed

            PQFP CPU CONFIGURATION

    Type        JP1         JP6        JP7

  Disabled    Closed      Closed      Closed

  Enabled      Open        Open        Open

                          CPU SPEED CONFIGURATION

     Speed          JP38           JP39          JP40           JP48

     25MHz         Closed         Closed         Open         pins 1 & 2
                                                               closed

     33MHz         Closed          Open         Closed        pins 1 & 2
                                                               closed

     40MHz          Open          Closed        Closed        pins 1 & 2
                                                               closed

    50iMHz         Closed         Closed         Open         pins 2 & 3
                                                               closed

     50MHz         Closed         Closed        Closed        pins 1 & 2
                                                               closed

    66iMHz         Closed          Open          Open         pins 2 & 3
                                                               closed

    75iMHz         Closed         Closed         Open         pins 2 & 3
                                                               closed

    100iMHz        Closed          Open          Open         pins 2 & 3
                                                               closed

  CPU SPEED CONFIGURATION (80486DX4 ONLY)

        Speed                  JP43

          2x            pins 1 & 2 closed

         2.5x           pins 2 & 3 closed

          3x                   Open

               CPU VOLTAGE CONFIGURATION

           Speed                       JP44

           3.45v             pins 2 & 3, 5 & 6 closed

             5v              pins 1 & 2, 4 & 5 closed

  VESA WAIT STATE CONFIGURATION

   Wait states         JP33

  0 wait states        Open

  1 wait state        Closed

                   BUS SPEED CONFIGURATION

      CPU speed              JP34                 JP46

      <= 33MHz               Open          pins 2 & 3 closed

       > 33MHz              Closed         pins 1 & 2 closed

