
DATAEXPERT CORPORATION

EXP4044

Device     Mainboard
Type
Processor  CXM6/80486SX/CXM7/AM486DX/AM486DXL/80486DX2/80486DX4/

           P24T
Processor  25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set   OPTI
Maximum    64MB
Onboard
Memory
Cache      64/128/256KB
BIOS       Award
Dimensions 254mm x 218mm
I/O        32-bit VESA local bus slots (3), green PC connector
Options

[Image]

                                CONNECTIONS

  Purpose                 Location    Purpose                   Location

  Power LED & keylock        J1       Turbo LED                   JP2

  Speaker                    J2       Green PC connector          JP20

  Reset switch               J3       Turbo switch                JP35

  External battery           J4       32-bit VESA local bus    SL1  SL3
                                      slots

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     Monitor type select color               JP32            Closed

      Monitor type select monochrome          JP32             Open

     CMOS memory normal operation            JP33          Pins 2 & 3
                                                              closed

      CMOS memory clear                       JP33          Pins 1 & 2
                                                              closed

     L2 write through                        JP34          Pins 2 & 3
                                                              closed

      L2 write back                           JP34          Pins 1 & 2
                                                              closed

                       SIMM CONFIGURATION 1

      Size            Bank 0           Bank 1          Bank 2

       2MB         (4) 256K x 9         None        (1) 256K x 36

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

       2MB             None        (1) 512K x 36        None

       4MB          (4) 1M x 9          None            None

       4MB             None         (1) 1M x 36         None

       5MB         (4) 256K x 9         None         (1) 1M x 36

       5MB             None        (1) 256K x 36     (1) 1M x 36

       8MB          (4) 1M x 9          None         (1) 1M x 36

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

       8MB             None         (1) 2M x 36         None

      16MB          (4) 4M x 9          None            None

      16MB             None             None         (1) 4M x 36

      17MB         (4) 256K x 9         None         (1) 4M x 36

      17MB             None        (1) 256K x 36     (1) 4M x 36

      20MB          (4) 1M x 9          None         (1) 4M x 36

      20MB             None         (1) 1M x 36      (1) 4M x 36

      32MB          (4) 4M x 9          None         (1) 4M x 36

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

      32MB             None         (1) 8M x 36         None

      64MB         (4) 16M x 9          None            None

                       SIMM CONFIGURATION 2

      Size            Bank 0           Bank 1          Bank 2

       2MB             None        (1) 512K x 36        None

       4MB          (4) 1M x 9          None            None

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

       8MB             None         (1) 2M x 36         None

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

      16MB          (4) 4M x 9          None            None

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

      32MB             None         (1) 8M x 36         None

      64MB         (4) 16M x 9          None            None

      64MB             None         (1) 8M x 36      (1) 8M x 36

                         SIMM JUMPER CONFIGURATION

             Configuration                             JP41

                      1                         Pins 2 & 3 closed

                       2                         Pins 1 & 2 closed

                    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) 32K x 8

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

                        CACHE JUMPER CONFIGURATION

     Size          JP13            JP27           JP28           JP29

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

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

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

            CPU SPEED SELECTION

   Speed      JP3        JP4       JP17

   25MHz     Closed     Closed     Open

   33MHz     Closed      Open     Closed

   40MHz      Open      Closed    Closed

  50iMHz     Closed     Closed     Open

   50MHz     Closed     Closed    Closed

  66iMHz     Closed      Open     Closed

  75iMHz     Closed     Closed     Open

  100iMHz    Closed      Open     Closed

                            CPU TYPE SELECTION

    Type      JP5     JP6      JP8     JP19     JP24     JP39      JP43

   CX M6     2 & 3    Open    Open     1 & 2    1 & 2   1 & 2      Open

  80486SX    2 & 3    Open    Open     1 & 2    Open    2 & 3      Open

  AM486DX    1 & 2    2 & 3   1 & 2    1 & 2    Open    2 & 3      Open

  AM486DXL   1 & 2    2 & 3   1 & 2    1 & 2    Open    2 & 3      Open

  80486DX    1 & 2    2 & 3   1 & 2    1 & 2    Open    2 & 3      Open

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

    P24T     1 & 2    2 & 3   1 & 2    2 & 3    2 & 3   2 & 3      Open

   CX M7     1 & 2    2 & 3   1 & 2    1 & 2    1 & 2   1 & 2      Open

  Note: Pins designated should be in the closed position.

                      CPU TYPE SELECTION (PQFP ONLY)

        Setting               JP11            JP12              JP25

          Enabled             Open            Open             Closed

         Disabled           Closed          Closed             Open

       CPU MULTIPLIER SELECTION (80486DX4 ONLY)

  Multiplier      JP36          JP37          JP38

      2x          Open         Closed         Open

     2.5x         Open          Open         Closed

      3x         Closed         Open          Open

                           CPU VOLTAGE SELECTION

      Voltage              JP44              JP45              JP46

          3.3v             Open             Closed          Pins 1 & 2
                                                              closed

          6v             Closed             Open           Pins 2 & 3
                                                              closed

                          VL BUS SPEED SELECTION

                 Speed                                 JP40

                 <= 33MHz                      Pins 2 & 3 closed

                  >33 MHz                       Pins 1 & 2 closed

                            GREEN PC SELECTION

           Setting                     JP9                   JP10

             Enabled                 Closed                 Closed

            Disabled                 Open                   Open

