
DATAEXPERT CORPORATION

MLX8440

Device Type              Mainboard
Processor                Pentium II/Celeron
Processor Speed          233/266/300/333MHz
Chip Set                 Intel 440LX
Maximum Onboard Memory   384MB (EDO & SDRAM supported)
Cache                    0/128/256/512KB (located on the CPU)
BIOS                     Award
Dimensions               305mm x 180mm
I/O Options              32-bit PCI slots (4), floppy drive interface,
                         green PC connector, IDE interfaces (2), parallel
                         port, PS/2 mouse port, serial ports (2), IR
                         connector, USB connector, ATX power connector,
                         AGP slot

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  AGP slot                 AGP         Green PC LED          J1/pins 7 &
                                                                 17

  ATX power                ATX         Green PC connector    J1/pins 8 &
  connector                                                      18

  Serial port 2            CN1         Soft off power        J1/pins 9 &
                                       supply                    19

  Parallel port            CN2         Reset switch          J1/pins 10 &
                                                                 20

  PS/2 mouse port          CN3         Speaker               J1/pins 11 -
                                                                 14

  Serial port 1            CN4         IR connector              IR1

  IDE interface 2          CN5         Chassis fan power         J5

  IDE interface 1          CN6         CPU fan power             JX1

  Floppy drive             CN7         Thermistor                RT1
  interface                            connector

  Power LED &           J1/pins 1 -    32-bit PCI slots       PC1 - PC4
  keylock                   5

  IDE interface LED     J1/pins 6 &    USB connector             USB
                            16

                    DIMM CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2

      8MB       (1) 1M x 64        None          None

     16MB       (1) 2M x 64        None          None

     16MB       (1) 1M x 64    (1) 1M x 64       None

     24MB       (1) 2M x 64    (1) 1M x 64       None

     24MB       (1) 1M x 64    (1) 1M x 64    (1) 1M x 64

     32MB       (1) 4M x 64        None          None

     32MB       (1) 2M x 64    (1) 1M x 64    (1) 1M x 64

     32MB       (1) 2M x 64    (1) 2M x 64       None

     40MB       (1) 4M x 64    (1) 1M x 64       None

     40MB       (1) 2M x 64    (1) 2M x 64    (1) 1M x 64

     48MB       (1) 4M x 64    (1) 1M x 64    (1) 1M x 64

     48MB       (1) 4M x 64    (1) 2M x 64       None

     48MB       (1) 2M x 64    (1) 2M x 64    (1) 2M x 64

     56MB       (1) 4M x 64    (1) 2M x 64    (1) 1M x 64

     64MB       (1) 8M x 64        None          None

     64MB       (1) 4M x 64    (1) 2M x 64    (1) 2M x 64

     64MB       (1) 4M x 64    (1) 4M x 64       None

     72MB       (1) 8M x 64    (1) 1M x 64       None

     72MB       (1) 4M x 64    (1) 4M x 64    (1) 1M x 64

     80MB       (1) 8M x 64    (1) 1M x 64    (1) 1M x 64

     80MB       (1) 8M x 64    (1) 2M x 64       None

     80MB       (1) 4M x 64    (1) 4M x 64    (1) 2M x 64

     88MB       (1) 8M x 64    (1) 2M x 64    (1) 1M x 64

     96MB       (1) 8M x 64    (1) 2M x 64    (1) 2M x 64

     96MB       (1) 8M x 64    (1) 4M x 64       None

     96MB       (1) 4M x 64    (1) 4M x 64    (1) 4M x 64

                  DIMM CONFIGURATION (CON'T)

      Size          Bank 0          Bank 1          Bank 2

     104MB        (1) 8M x 64     (1) 4M x 64    (1) 1M x 64

     112MB        (1) 8M x 64     (1) 4M x 64    (1) 2M x 64

     128MB       (1) 16M x 64        None            None

     128MB        (1) 8M x 64     (1) 4M x 64    (1) 4M x 64

     128MB        (1) 8M x 64     (1) 8M x 64        None

     136MB       (1) 16M x 64     (1) 1M x 64        None

     136MB        (1) 8M x 64     (1) 8M x 64    (1) 1M x 64

     144MB       (1) 16M x 64     (1) 1M x 64    (1) 1M x 64

     144MB       (1) 16M x 64     (1) 2M x 64        None

     144MB        (1) 8M x 64     (1) 8M x 64    (1) 2M x 64

     152MB       (1) 16M x 64     (1) 2M x 64    (1) 1M x 64

     160MB       (1) 16M x 64     (1) 2M x 64    (1) 2M x 64

     160MB       (1) 16M x 64     (1) 4M x 64        None

     160MB        (1) 8M x 64     (1) 8M x 64    (1) 4M x 64

     168MB       (1) 16M x 64     (1) 4M x 64    (1) 1M x 64

     176MB       (1) 16M x 64     (1) 4M x 64    (1) 2M x 64

     192MB       (1) 16M x 64     (1) 4M x 64    (1) 4M x 64

     192MB       (1) 16M x 64     (1) 8M x 64        None

     192MB        (1) 8M x 64     (1) 8M x 64    (1) 8M x 64

     200MB       (1) 16M x 64     (1) 8M x 64    (1) 1M x 64

     208MB       (1) 16M x 64     (1) 8M x 64    (1) 2M x 64

     224MB       (1) 16M x 64     (1) 8M x 64    (1) 4M x 64

     256MB       (1) 16M x 64     (1) 8M x 64    (1) 8M x 64

     384MB       (1) 16M x 64    (1) 16M x 64    (1) 16M x 64

  Note: Board accepts EDO & SDRAM memory.

                            CACHE CONFIGURATION

  Note: 256KB/512KB cache is located on the Pentium II CPU. 128KB cache
  is located on the Celeron 300A & 333 CPU.

                            CPU SPEED SELECTION

  CPU speed      Clock      Multiplier      JPXA       JPXB        JPXC
                 speed

   233MHz        66MHz         3.5x         2 & 3      2 & 3      2 & 3

   266MHz        66MHz          4x          2 & 3      2 & 3      2 & 3

   300MHz        66MHz         4.5x         2 & 3      2 & 3      2 & 3

   333MHz        66MHz          5x          2 & 3      2 & 3      2 & 3

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (CON'T)

    CPU      Clock    Multiplier     JP1A      JP1B      JP1C      JP1D
  speed     speed

  233MHz    66MHz        3.5x        Open      Open     Closed    Closed

  266MHz    66MHz         4x        Closed    Closed     Open     Closed

  300MHz    66MHz        4.5x        Open     Closed     Open     Closed

  333MHz    66MHz         5x        Closed     Open      Open     Closed

