
DATAEXPERT CORPORATION

EXP4045

Processor  CX486M6/80486SX/CX486M7/AM486DX/80486DX/SL80486DX/AM486DX2/
           80486DX2/SL80486DX2/80486DX4/P24D/Pentium Overdrive
Processor  25/33/40/50(internal)/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set   Unidentified
Max.       128MB
Onboard
DRAM
Cache      128/256/512KB
BIOS       Award
Dimensions 249mm x 218mm
I/O        32-bit VESA local bus slots (3), green PC connector
Options
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Power LED & keylock         J1       Turbo LED                   J5

  Speaker                     J2       External battery           JP40

  Reset switch                J3       32-bit VESA local bus   SL1 - SL3
                                       slots

  Turbo switch                J4

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Factory configured - do not             JP5              N/A
      alter

     Factory configured - do not             JP10             N/A
      alter

     Factory configured - do not             JP11             N/A
      alter

     Factory configured - do not             JP12             N/A
      alter

     Factory configured - do not             JP13             N/A
      alter

     Factory configured - do not             JP14             N/A
      alter

     Factory configured - do not             JP15             N/A
      alter

     Factory configured - do not             JP35             N/A
      alter

     Factory configured - do not             JP37             N/A
      alter

     Factory configured - do not             JP38             N/A
      alter

     Monitor type select color               JP39            Closed

      Monitor type select monochrome          JP39             Open

                            DRAM CONFIGURATION

     Size          Bank 0         Bank 1         Bank 2         Bank 3

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

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

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

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

     12MB        (1) 1M x 36    (1) 1M x 36    (1) 1M x 36       NONE

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

     12MB        (1) 1M x 36       NONE        (1) 2M x 36       NONE

      8MB        (1) 2M x 36       NONE           NONE           NONE

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

     24MB        (1) 2M x 36    (1) 2M x 36    (1) 2M x 36       NONE

     32MB        (1) 2M x 36    (1) 2M x 36    (1) 2M x 36   (1) 2M x 36

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

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

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

     32MB        (1) 8M x 36       NONE           NONE           NONE

     128MB       (1) 8M x 36    (1) 8M x 36    (1) 8M x 36   (1) 8M x 36

              CACHE CONFIGURATION

      Size          Bank 0           TAG

     128KB        (4) 32K x 8    (1) 32K x 8

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

     512KB        (4) 128K x 8   (1) 32K x 8

                        CACHE JUMPER CONFIGURATION

    Size           JP1            JP2            JP3             JP4

    128KB          Open           Open        pins 2 & 3      pins 1 & 2
                                                closed         closed

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

    512KB       pins 2 & 3       Closed       pins 1 & 2      pins 2 & 3
                  closed                        closed         closed

                          CPU TYPE CONFIGURATION

      Type         JP6       JP16         JP17        JP19        JP20

    CX486M6       2 & 3     2 & 3, 4      Open       2 & 3       Closed
                              & 5

    80486SX       1 & 2      1 & 2        Open       1 & 2        Open

    CX486M7       2 & 3     2 & 3, 4     Closed      2 & 3       Closed
                              & 5

    AM486DX       1 & 2      1 & 2       Closed      1 & 2        Open

    80486DX       1 & 2      1 & 2       Closed      1 & 2        Open

   SL80486DX      1 & 2      1 & 2       Closed      1 & 2       Closed

    AM486DX2      1 & 2      1 & 2       Closed      1 & 2        Open

    80486DX2      1 & 2      1 & 2       Closed      1 & 2        Open

   SL80486DX2     1 & 2      1 & 2       Closed      1 & 2       Closed

    80486DX4      1 & 2      1 & 2       Closed      1 & 2       Closed

      P24D        1 & 2     1 & 2, 3     Closed      1 & 2       Closed
                              & 4

      P24T        1 & 2      1 & 2       Closed      1 & 2       Closed

  Note: Pins designated should be in the closed position.

                      CPU TYPE CONFIGURATION (CONT)

      Type          JP21        JP22        JP23       JP24        JP25

     CX486M6       2 & 3, 4    Closed       Open       Open      2 & 3, 4
                     & 5                                           & 5

     80486SX        Open       Closed       Open       Open      1 & 2, 3
                                                                   & 4

     CX486M7       2 & 3, 4    Closed       Open       Open      2 & 3, 4
                     & 5                                           & 5

     AM486DX        Open       Closed       Open       Open      1 & 2, 3
                                                                   & 4

     80486DX        Open       Closed       Open       Open      1 & 2, 3
                                                                   & 4

    SL80486DX       Open       Closed       Open       Open      1 & 2, 3
                                                                   & 4

    AM486DX2        Open       Closed       Open       Open      1 & 2, 3
                                                                   & 4

    80486DX2        Open       Closed       Open       Open      1 & 2, 3
                                                                   & 4

   SL80486DX2       Open       Closed       Open       Open      1 & 2, 3
                                                                   & 4

    80486DX4        Open       Closed       Open       Open      1 & 2, 3
                                                                   & 4

      P24D          Open        Open        1 & 2      1 & 2     1 & 2, 3
                                                                   & 4

      P24T          Open        Open        Open       Open      1 & 2, 3
                                                                   & 4

  Note: Pins designated should be in the closed position.

                      CPU TYPE CONFIGURATION (CONT)

     Type         JP26        JP27       JP28         JP29        JP30

   CX486M6        Open        Open       2 & 3        Open        Open

   80486SX        Open        Open       2 & 3        Open        Open

   CX486M7       Closed       Open       1 & 2       Closed      Closed

   AM486DX       Closed       Open       1 & 2       Closed      Closed

   80486DX       Closed       Open       1 & 2       Closed      Closed

  SL80486DX      Closed       Open       1 & 2       Closed      Closed

   AM486DX2      Closed       Open       1 & 2       Closed      Closed

   80486DX2      Closed       Open       1 & 2       Closed      Closed

  SL80486DX2     Closed       Open       1 & 2       Closed      Closed

   80486DX4      Closed       Open       1 & 2       Closed      Closed

     P24D        Closed       Open       1 & 2       Closed      Closed

     P24T        Closed       1 & 2      1 & 2       Closed       Open

  Note: Pins designated should be in the closed position.

                   CPU TYPE CONFIGURATION (CONT)

     Type         JP31          JP32          JP34          JP36

   CX486M6        Open          Open         Closed        Closed

   80486SX        Open          Open          Open          Open

   CX486M7        Open          Open         Closed        Closed

   AM486DX        Open          Open          Open          Open

   80486DX        Open          Open          Open          Open

  SL80486DX       Open          Open          Open         Closed

   AM486DX2       Open          Open          Open          Open

   80486DX2       Open          Open          Open          Open

  SL80486DX2      Open          Open          Open         Closed

   80486DX4       Open         Closed         Open         Closed

     P24D         Open         Closed         Open         Closed

     P24T         Open         Closed         Open         Closed

          CPU SPEED CONFIGURATION

   Speed      JP7        JP8        JP9

   25MHz      Open       Open     Closed

   33MHz     Closed     Closed    Closed

   40MHz      Open      Closed    Closed

  50iMHz      Open       Open     Closed

  66iMHz     Closed     Closed    Closed

  75iMHz      Open       Open     Closed

  100iMHz    Closed     Closed    Closed

  CPU SPEED CONFIGURATION (80486DX4 ONLY)

        Speed                  JP16

          2x            pins 7 & 8 closed

         2.5x           pins 8 & 9 closed

          3x                   Open

  CPU VOLTAGE CONFIGURATION

  Speed      JP18     JP33

   3.3v      Open     Open

    5v      Closed   Closed

