
KADATCO CO., LTD.

AM-438VX

Device Type         Mainboard
Processor           CX 6X86/AM K5/Pentium
Processor Speed     75/90/100/120/133/150/166/180/200MHz
Chip Set            Unidentified
Video Chip Set      None
Maximum Onboard     128MB (EDO & SDRAM supported)
Memory
Maximum Video       None
Memory
Cache               256/512KB
BIOS                Unidentified
Dimensions          254mm x 218mm
I/O Options         32-bit PCI slots (4), floppy drive interface, green PC
                    connector, IDE interfaces (2), parallel port, PS/2
                    mouse interface, serial ports (2), cache slot, IR
                    connector, USB connector
NPU Options         None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  IDE interface LED           C1       Floppy drive               CN3
                                       interface

  Reset switch                C2       Serial port 2              CN4

  Speaker                     C3       IDE interface 1            CN5

  Power LED & keylock         C4       IDE interface 2            CN6

  CPU fan power               C5       PS/2 mouse interface       CN7

  Green PC connector          C6       32-bit PCI slots         PC1  PC4

  IR connector                C7       Cache slot                 SL1

  Serial port 1              CN1       USB connector              USB

  Parallel port              CN2

                        USER CONFIGURABLE SETTINGS

                  Function                       Label        Position

      Flash BIOS type select                      JP9        Pins 1 & 2
      SST/Winbond/ATMEL/MMX                                    closed

      Flash BIOS type select Intel                JP9        Pins 2 & 3
                                                               closed

      Flash BIOS voltage select 12v              JP10        Pins 2 & 3
                                                               closed

      Flash BIOS voltage select 5v               JP10        Pins 1 & 2
                                                               closed

     CMOS memory normal operation               JP16           Open

      CMOS memory clear                          JP16          Closed

              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

            Note: Board accepts EDO memory.

               DIMM CONFIGURATION

      Size          Bank 0          Bank 1

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

            Note: Board accepts SDRAM memory.

                            CACHE CONFIGURATION

          Size                   Bank 0                     SL1

         256KB                    None            256KB module installed

         256KB                    256KB                Not installed

         512KB                    None            512KB module installed

         512KB                    512KB                Not installed

         512KB                    256KB           256KB module installed

  Note: The size and location of bank 0 is unidentified.

                        CPU SPEED SELECTION (CYRIX)

  CPU speed     Clock     Multiplier     JP3      JP4      JP6      JP7
               speed

   120MHz      50MHz          2x        2 & 3    1 & 2    2 & 3    2 & 3

   133MHz      55MHz          2x        2 & 3    1 & 2    2 & 3    1 & 2

   150MHz      60MHz          2x        2 & 3    1 & 2    1 & 2    2 & 3

   166MHz      66MHz          2x        2 & 3    1 & 2    1 & 2    1 & 2

   200MHz      66MHz         1.5x       1 & 2    1 & 2    2 & 3    2 & 3

  Note: Pins designated should be in the closed position.

                         CPU SPEED SELECTION (AMD)

  CPU speed     Clock     Multiplier     JP3      JP4      JP6      JP7
               speed

   75MHz       50MHz         1.5x       1 & 2    1 & 2    2 & 3    2 & 3

   90MHz       60MHz         1.5x       1 & 2    1 & 2    1 & 2    2 & 3

   100MHz      66MHz         1.5x       1 & 2    1 & 2    1 & 2    1 & 2

   120MHz      60MHz         1.5x       1 & 2    1 & 2    1 & 2    2 & 3

   133MHz      66MHz         1.5x       1 & 2    1 & 2    1 & 2    1 & 2

   150MHz      60MHz          2x        2 & 3    1 & 2    1 & 2    2 & 3

   166MHz      66MHz          2x        2 & 3    1 & 2    1 & 2    1 & 2

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

  CPU speed     Clock     Multiplier     JP3      JP4      JP6      JP7
               speed

   75MHz       50MHz         1.5x       1 & 2    1 & 2    2 & 3    2 & 3

   90MHz       60MHz         1.5x       1 & 2    1 & 2    1 & 2    2 & 3

   100MHz      66MHz         1.5x       1 & 2    1 & 2    1 & 2    1 & 2

   120MHz      60MHz          2x        2 & 3    1 & 2    1 & 2    2 & 3

   133MHz      66MHz          2x        2 & 3    1 & 2    1 & 2    1 & 2

   150MHz      60MHz         2.5x       2 & 3    2 & 3    1 & 2    2 & 3

   166MHz      66MHz         2.5x       2 & 3    2 & 3    1 & 2    1 & 2

   180MHz      60MHz          3x        1 & 2    2 & 3    1 & 2    2 & 3

   200MHz      66MHz          3x        1 & 2    2 & 3    1 & 2    1 & 2

  Note: Pins designated should be in the closed position.

                            CPU TYPE SELECTION

    Type           J13            J14            J15             J16

    Cyrix       Pins 2 & 3     Pins 2 & 3     Pins 2 & 3      Pins 2 & 3
                 closed          closed         closed         closed

  AMD (B, C,    Pins 2 & 3     Pins 2 & 3     Pins 2 & 3      Pins 2 & 3
     F)          closed          closed         closed         closed

  AMD (H, J,    Pins 1 & 2     Pins 1 & 2     Pins 1 & 2      Pins 1 & 2
     K)          closed          closed         closed         closed

    P54C        Pins 2 & 3     Pins 2 & 3     Pins 2 & 3      Pins 2 & 3
                 closed          closed         closed         closed

    P55C        Pins 1 & 2     Pins 1 & 2     Pins 1 & 2      Pins 1 & 2
                 closed          closed         closed         closed

          CPU VOLTAGE SELECTION

       Voltage               JP17

         STD          Pins 2 & 3 closed

         VRE          Pins 1 & 2 closed

           CPU VOLTAGE SELECTION

       Voltage                 JP5

         2.5v           Pins 1 & 2 closed

         2.7v           Pins 3 & 4 closed

        2.93v           Pins 5 & 6 closed

        3.38v           Pins 7 & 8 closed

        3.52v          Pins 9 & 10 closed

