
DATAEXPERT CORPORATION

EXP8851

Device Type          Mainboard
Processor            CX 6X86/AM K5/Pentium
Processor Speed      75/90/100/120/133/150/166/200MHz
Chip Set             Unidentified
Video Chip Set       None
Maximum Onboard      128MB
Memory
Maximum Video Memory None
Cache                256/512KB
BIOS                 AMI
Dimensions           290mm x 220mm
I/O Options          32-bit PCI slots (4), green PC connector, VRM
                     connector

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Serial port 2              CN1       Turbo LED                   J4

  Serial port 1              CN2       Parallel port               J5

  Floppy drive interface     CN3       Green PC connector         JP19

  IDE interface 2            CN4       IDE interface LED          JP20

  IDE interface 1            CN5       CPU fan power              JP30

  Power LED & keylock         J1       32-bit PCI slots         PC1  PC4

  Speaker                     J2       VRM connector              VRM

  Reset switch                J3

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     Cache type select write back            JP10             Open

      Cache type select write through         JP10            Closed

     CPU pipeline enabled                    JP11            Closed

      CPU pipeline disabled                   JP11             Open

     AT bus CLK select PCICLK/4              JP15          Pins 2 & 3
                                                              closed

      AT bus CLK select PCICLK/3              JP15          Pins 1 & 2
                                                              closed

     CMOS memory normal operation            JP18             Open

      CMOS memory clear                       JP18            Closed

     Parallel port mode select               JP23            Closed
      standard

      Parallel port mode select EPP           JP23             Open

             SIMM CONFIGURATION

     Size          Bank 0        Bank 1

      8MB        (2) 1M x 36      None

     16MB        (2) 2M x 36      None

     16MB        (2) 1M x 36   (2) 1M x 36

     24MB        (2) 2M x 36   (2) 1M x 36

     32MB        (2) 4M x 36      None

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

     40MB        (2) 4M x 36   (2) 1M x 36

     48MB        (2) 4M x 36   (2) 2M x 36

     64MB        (2) 8M x 36      None

     64MB        (2) 4M x 36   (2) 4M x 36

         SIMM CONFIGURATION (CONT)

     Size          Bank 0        Bank 1

     72MB        (2) 8M x 36   (2) 1M x 36

     80MB        (2) 8M x 36   (2) 2M x 36

     96MB        (2) 8M x 36   (2) 4M x 36

     128MB       (2) 8M x 36   (2) 8M x 36

                            CACHE CONFIGURATION

       Size             Bank 0           Bank 1               TAG

     256KB (A)       (2) 32K x 32         None               None

     256KB (B)           None         (8) 32K x 8     (1) 8K/16K/32K x 8

       512KB             None         (8) 64K x 8       (1) 16K/32K x 8

                        CACHE JUMPER CONFIGURATION

      Size              JP12               JP13               JP14

    256KB (B)         Pins 2 & 3        Pins 2 & 3      Pins 1 & 2 closed
                       closed             closed

      512KB           Pins 1 & 2        Pins 1 & 2      Pins 2 & 3 closed
                       closed             closed

                       CPU SPEED SELECTION (CX 6X86)

    CPU      Clock    Multiplier      JP5       JP16      JP17      JP31
  speed      speed

  120MHz     50MHz        2x         Closed     Open      Open      Open

  150MHz     60MHz        2x         Closed     Open     Closed     Open

  166MHz     66MHz        2x         Closed    Closed    Closed     Open

                        CPU SPEED SELECTION (AM K5)

    CPU       Clock     Multiplier     JP5     JP16      JP17      JP31
   speed     speed

   75MHz     50MHz         1.5x       Open     Open      Open      Open

   90MHz     60MHz         1.5x       Open     Open     Closed     Open

                        CPU SPEED SELECTION (INTEL)

    CPU      Clock    Multiplier     JP5       JP16      JP17      JP31
  speed     speed

  75MHz     50MHz        1.5x        Open      Open      Open      Open

  90MHz     60MHz        1.5x        Open      Open     Closed     Open

  100MHz    66MHz        1.5x        Open     Closed    Closed     Open

  120MHz    60MHz         2x        Closed     Open     Closed     Open

  133MHz    66MHz         2x        Closed    Closed    Closed     Open

  150MHz    60MHz        2.5x       Closed     Open     Closed    Closed

  166MHz    66MHz        2.5x       Closed    Closed    Closed    Closed

  200MHz    66MHz         3x         Open     Closed    Closed    Closed

                    DMA CHANNEL SELECTION

       Channel               JP27                 JP28

          1            Pins 2 & 3 closed   Pins 2 & 3 closed

          3            Pins 1 & 2 closed   Pins 1 & 2 closed

                              BIOS SELECTION

          Setting                    JP8                     JP9

           5v flash          Pins 2 & 3 closed       Pins 1 & 2 closed

           12v flash          Pins 2 & 3 closed       Pins 2 & 3 closed

             EPROM            Pins 1 & 2 closed       Pins 1 & 2 closed

                               IDE SELECTION

           Setting                     JP21                  JP22

        Normal operation       Pins 2 & 3 closed      Pins 2 & 3 closed

         Feature function       Pins 1 & 2 closed      Pins 1 & 2 closed

