
DATAEXPERT CORPORATION

ATX431

Device Type         Mainboard
Processor           CX 6X86/CX 686MX/AM K5/AM K6/Pentium/Pentium MMX
Processor Speed     90/100/120/133/150/166/200/233MHz
Chip Set            Intel 430TX
Video Chip Set      None
Maximum Onboard     256MB (EDO & SDRAM supported)
Memory
Maximum Video MemoryNone
Cache               512KB
BIOS                AMI
Dimensions          305mm x 190mm
I/O Options         32-bit PCI slots (4), floppy drive interface, IDE
                    interfaces (2), parallel port, PS/2 mouse port, serial
                    ports (2), IR connectors (2), USB connectors (2), ATX
                    power connector

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  ATX power connector        ATX       IDE interface LED           J3

  Serial port 1              CN1       Reset switch                J4

  Parallel port              CN2       Turbo LED                   J5

  PS/2 mouse port            CN3       IR connector                J8

  Serial port 2              CN4       CIR connector               J9

  IDE interface 1            CN5       USB connector 1            J10

  IDE interface 2            CN6       USB connector 2            J11

  Floppy drive interface     CN7       32-bit PCI slots         PC1  PC4

  Power LED & keylock         J1       Soft off power supply      SW1

  Speaker                     J2

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     Flash BIOS voltage select 5v            JP3           Pins 2 & 3
                                                              closed

      Flash BIOS voltage select 12v           JP3           Pins 1 & 2
                                                              closed

     CMOS memory normal operation            JP6             Closed

      CMOS memory clear                       JP6              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

     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

          SIMM CONFIGURATION (CONT)

      Size          Bank 0          Bank 1

     128MB        (2) 16M x 36       None

     136MB        (2) 16M x 36   (2) 1M x 36

     144MB        (2) 16M x 36   (2) 2M x 36

     160MB        (2) 16M x 36   (2) 4M x 36

     192MB        (2) 16M x 36   (2) 8M x 36

     256MB        (2) 16M x 36   (2) 16M x 36

  Note: Board accepts EDO memory.

               DIMM CONFIGURATION

      Size          Bank 2          Bank 3

      8MB         (1) 1M x 64        None

      16MB        (1) 2M x 64        None

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

      24MB        (1) 2M x 64     (1) 1M x 64

      32MB        (1) 4M x 64        None

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

      40MB        (1) 4M x 64     (1) 1M x 64

      48MB        (1) 4M x 64     (1) 2M x 64

      64MB        (1) 8M x 64        None

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

      72MB        (1) 8M x 64     (1) 1M x 64

      80MB        (1) 8M x 64     (1) 2M x 64

      96MB        (1) 8M x 64     (1) 4M x 64

     128MB       (1) 16M x 64        None

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

     136MB       (1) 16M x 64     (1) 1M x 64

     144MB       (1) 16M x 64     (1) 2M x 64

     160MB       (1) 16M x 64     (1) 4M x 64

     192MB       (1) 16M x 64     (1) 8M x 64

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

            Note: Board accepts SDRAM memory.

      CACHE CONFIGURATION

      Size          Bank 0

     512KB       (2) 64K x 32

