
ASUS COMPUTER INTERNATIONAL

TXP4 (REV. 1.01)

Processor           CX 6X86/CX 6X86/CX 686MX/IBM 6X86/IBM 6X86MX/AM K5/ AM
                    K6/Pentium
Processor Speed     75/90/100/120/133/150/166/200/233MHz
Chip Set            Intel
Video Chip Set      None
Maximum Onboard     256MB
Memory
Maximum Video       None
Memory
Cache               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), IR connectors (2),
                    USB connector, ATX power connector
NPU Options         None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                 Location

  ATX power                ATX         CPU fan power              C5
  connector

  Power LED &          C1/pins 1 - 5   Power fan                  C6
  keylock

  Speaker               C1/pins 7 -    Serial port 2             CN1
                            10

  Message LED          C1/pins 12 &    Serial port 1             CN2
                            13

  Green PC connector   C1/pins 14 &    Parallel port             CN3
                            15

  Soft off power       C1/pins 16 &    Floppy drive              CN4
  supply                    17         interface

  Reset switch         C1/pins 19 &    IDE interface 1           CN5
                            20

  IDE interface LED         C2         IDE interface 2           CN6

  Chassis fan power         C3         USB, PS/2 mouse, IR       CN7
                                       connector

  IR connector              C4         32-bit PCI slots       PC1  PC4

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     Flash BIOS boot block write           BBL        Pins 1 & 2 closed
      protect disabled

      Flash BIOS boot block write           BBL        Pins 2 & 3 closed
      protect enabled

     Factory configured  do not           BF2          Unidentified
      alter

     CMOS memory normal operation          RTC        Pins 1 & 2 closed

      CMOS memory clear                     RTC        Pins 2 & 3 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

     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 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) 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

      CACHE CONFIGURATION

      Size          Bank 0

     512KB       (2) 64K x 32

                       CPU SPEED SELECTION (CX 6X86)

    CPU       Clock     Multiplier     BF0    BF1     FS0    FS1     FS2
   speed      speed

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

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (IBM 6X86)

    CPU       Clock     Multiplier     BF0    BF1     FS0    FS1     FS2
   speed      speed

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

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (CX 6X86MX)

    CPU       Clock     Multiplier     BF0    BF1     FS0    FS1     FS2
   speed      speed

  166MHz      60MHz        2.5x        2 &     2 &    1 &     2 &   2 & 3
                                        3      3       2      3

  200MHz      66MHz        2.5x        2 &     2 &    2 &     1 &   2 & 3
                                        3      3       3      2

  233MHz      66MHz         3x         1 &     2 &    2 &     1 &   2 & 3
                                        2      3       3      2

  Note: Pins designated should be in the closed position.

                     CPU SPEED SELECTION (IBM 6X86MX)

    CPU       Clock     Multiplier     BF0    BF1     FS0    FS1     FS2
   speed      speed

  166MHz      60MHz        2.5x        2 &     2 &    1 &     2 &   2 & 3
                                        3      3       2      3

  200MHz      66MHz        2.5x        2 &     2 &    2 &     1 &   2 & 3
                                        3      3       3      2

  233MHz      66MHz         3x         1 &     2 &    2 &     1 &   2 & 3
                                        2      3       3      2

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (AM K5)

    CPU       Clock     Multiplier     BF0    BF1     FS0    FS1     FS2
   speed      speed

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

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

  100MHz      66MHz        1.5x        1 &     1 &    2 &     1 &   2 & 3
                                        2      2       3      2

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

  133MHz      66MHz        1.5x        1 &     1 &    2 &     1 &   2 & 3
                                        2      2       3      2

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (AM K6)

    CPU       Clock     Multiplier     BF0    BF1     FS0    FS1     FS2
   speed      speed

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

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

  233MHz      66MHz        3.5x        1 &     1 &    2 &     1 &   2 & 3
                                        2      2       3      2

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

    CPU       Clock     Multiplier     BF0    BF1     FS0    FS1     FS2
   speed      speed

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

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

  100MHz      66MHz        1.5x        1 &     1 &    2 &     1 &   2 & 3
                                        2      2       3      2

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

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

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

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

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

  233MHz      66MHz        3.5x        1 &     1 &    2 &     1 &   2 & 3
                                        2      2       3      2

  Note: Pins designated should be in the closed position.

                      CPU VOLTAGE SELECTION (SINGLE)

     Voltage             VID0               VID1               VID2

       3.4v            Pins 2 & 3        Pins 2 & 3         Pins 2 & 3
                        closed             closed             closed

       3.5v            Pins 1 & 2        Pins 2 & 3         Pins 2 & 3
                        closed             closed             closed

                       CPU VOLTAGE SELECTION (DUAL)

     Voltage             VID0               VID1               VID2

       2.0v              Open            Pins 2 & 3            Open
                                           closed

       2.8v            Pins 2 & 3        Pins 2 & 3         Pins 2 & 3
                        closed             closed             closed

       2.9v            Pins 1 & 2        Pins 2 & 3         Pins 2 & 3
                        closed             closed             closed

       3.2v            Pins 2 & 3        Pins 2 & 3         Pins 1 & 2
                        closed             closed             closed

