
M TECHNOLOGY, INC.

R542 MUSTANG-ULTRA (VER. 2)

Device Type       Mainboard
Processor         CX 6X86/IBM 6X86/CX 6X86L/IBM 6X86L/CX 686MX/AM K5/

                  AM K6/Pentium/Pentium MMX
Processor Speed   90/100/120/133/150/166/180/200/233/266MHz
Chip Set          SIS
Video Chip Set    None
Maximum Onboard   192MB (EDO & SDRAM supported)
Memory
Maximum Video     None
Memory
Cache             512KB
BIOS              Award
Dimensions        280mm x 220mm
I/O Options       32-bit PCI slots (3), floppy drive interface, IDE
                  interfaces (2), parallel port, PS/2 mouse interface,
                  serial ports (2), IR connector, USB connectors (2), ATX
                  power connector
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  ATX power connector        ATX       Serial port 1              CN2

  Power LED & keylock         C1       IDE interface 1            CN3

  Speaker                     C2       Floppy drive               CN4
                                       interface

  Turbo switch                C3       Parallel port              CN5

  Turbo LED                   C4       IDE interface 2            CN6

  Reset switch                C5       IR connector               IR1

  PWRBT connector             C6       PS/ mouse interface         J1

  IDE interface LED           C7       32-bit PCI slots         PC1  PC3

  Soft off power supply       C8       USB connector 1            USB1

  Serial port 2              CN1       USB connector 2            USB2

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     Factory configured - do not          JP10          Unidentified
      alter

      CPU mode select togger               JP14              Open

      CPU mode select linear               JP14             Closed

     CMOS memory normal operation         JP18        Pins 1 & 2 closed

      CMOS memory clear                    JP18        Pins 2 & 3 closed

      On board video enabled               JP24        Pins 2 & 3 closed

      On board video disabled              JP24        Pins 1 & 2 closed

              SIMM CONFIGURATION

         Size                  Bank 0

          8MB                (2) 1M x 36

         16MB                (2) 2M x 36

         32MB                (2) 4M x 36

         64MB                (2) 8M x 36

            Note: Board accepts EDO memory.

                    DIMM CONFIGURATION

     Size          Bank 1         Bank 2        Bank 3

      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

                        DIMM CONFIGURATION (CONT)

       Size              Bank 0            Bank 1             Bank 2

       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

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

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

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

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

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

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

            Note: Board accepts SDRAM memory. To use the on board VGA,
            bank 1 must be filled.

               DIMM VOLTAGE CONFIGURATION

          Voltage                       JP1

            3.3v             Pins 5 & 6, 7 & 8 closed

             5v              Pins 1 & 2, 3 & 4 closed

      CACHE CONFIGURATION

      Size          Bank 0

     512KB       (2) 64K x 32

                       CPU SPEED SELECTION (CX 6X86)

   CPU     Clock    Multiplier    JP2      JP3      JP4     JP8     JP9
  speed    speed

  133MHz   55MHz       2x        Closed   Closed   Open     Open   Closed

  150MHz   60MHz       2x        Closed   Open     Open     Open   Closed

  166MHz   66MHz       2x        Open     Open     Open     Open   Closed

  200MHz   75MHz       2x        Open     Closed   Closed   Open   Closed

                      CPU SPEED SELECTION (IBM 6X86)

   CPU     Clock    Multiplier    JP2      JP3      JP4     JP8     JP9
  speed    speed

  133MHz   55MHz       2x        Closed   Closed   Open     Open   Closed

  150MHz   60MHz       2x        Closed   Open     Open     Open   Closed

  166MHz   66MHz       2x        Open     Open     Open     Open   Closed

  200MHz   75MHz       2x        Open     Closed   Closed   Open   Closed

                      CPU SPEED SELECTION (CX 6X86L)

   CPU     Clock    Multiplier    JP2      JP3      JP4     JP8     JP9
  speed    speed

  133MHz   55MHz       2x        Closed   Closed   Open     Open   Closed

  150MHz   60MHz       2x        Closed   Open     Open     Open   Closed

  166MHz   66MHz       2x        Open     Open     Open     Open   Closed

  200MHz   75MHz       2x        Open     Closed   Closed   Open   Closed

                      CPU SPEED SELECTION (IBM 6X86L)

   CPU     Clock    Multiplier    JP2      JP3      JP4     JP8     JP9
  speed    speed

  133MHz   55MHz       2x        Closed   Closed   Open     Open   Closed

  150MHz   60MHz       2x        Closed   Open     Open     Open   Closed

  166MHz   66MHz       2x        Open     Open     Open     Open   Closed

  200MHz   75MHz       2x        Open     Closed   Closed   Open   Closed

                      CPU SPEED SELECTION (CX 6X86MX)

   CPU     Clock   Multiplier    JP2      JP3      JP4      JP8      JP9
  speed    speed

  166MHz   60MHz      2.5x      Closed    Open     Open    Closed   Closed

  200MHz   66MHz      2.5x       Open     Open     Open    Closed   Closed

  233MHz   66MHz       3x        Open     Open     Open    Closed   Open

  233MHz   75MHz      2.5x       Open    Closed   Closed   Closed   Closed

  266MHz   66MHz      3.5x       Open     Open     Open    Open     Open

  266MHz   75MHz       3x        Open    Closed   Closed   Closed   Open

                        CPU SPEED SELECTION (AM K5)

   CPU      Clock   Multiplier     JP2     JP3    JP4     JP8       JP9
  speed    speed

  90MHz    60MHz       1.5x       Closed   Open   Open    Open     Open

  100MHz   66MHz       1.5x       Open     Open   Open    Open     Open

  166MHz   66MHz       2.5x       Open     Open   Open   Closed   Closed

                        CPU SPEED SELECTION (AM K6)

    CPU     Clock    Multiplier    JP2    JP3     JP4     JP8       JP9
  speed     speed

  166MHz    66MHz       2.5x       Open   Open    Open   Closed   Closed

  200MHz    66MHz        3x        Open   Open    Open   Closed    Open

  233MHz    66MHz       3.5x       Open   Open    Open    Open     Open

                        CPU SPEED SELECTION (INTEL)

   CPU      Clock   Multiplier     JP2     JP3    JP4     JP8       JP9
  speed    speed

  90MHz    60MHz       1.5x       Closed   Open   Open    Open     Open

  100MHz   66MHz       1.5x       Open     Open   Open    Open     Open

  120MHz   60MHz        2x        Closed   Open   Open    Open    Closed

  133MHz   66MHz        2x        Open     Open   Open    Open    Closed

  150MHz   60MHz       2.5x       Closed   Open   Open   Closed   Closed

  166MHz   66MHz       2.5x       Open     Open   Open   Closed   Closed

  180MHz   60MHz        3x        Closed   Open   Open   Closed    Open

  200MHz   66MHz        3x        Open     Open   Open   Closed    Open

                      CPU SPEED SELECTION (INTEL MMX)

    CPU     Clock    Multiplier    JP2    JP3     JP4     JP8       JP9
  speed     speed

  166MHz    66MHz       2.5x       Open   Open    Open   Closed   Closed

  200MHz    66MHz        3x        Open   Open    Open   Closed    Open

  233MHz    66MHz       3.5x       Open   Open    Open    Open     Open

                      CPU VOLTAGE SELECTION (SINGLE)

         Voltage                   JP6                      JP12

          3.4v             Pins 1 & 2, 3 & 4, 5      Pins 3 & 4 closed
                                & 6 closed

          3.5v             Pins 1 & 2, 3 & 4, 5      Pins 1 & 2 closed
                                & 6 closed

                       CPU VOLTAGE SELECTION (DUAL)

      Voltage            V core             JP6               JP12

        3.4v              2.5v             Open           Pins 11 & 12
                                                             closed

        3.4v              2.8v             Open            Pins 9 & 10
                                                             closed

        3.4v              2.9v             Open         Pins 7 & 8 closed

        3.4v              3.2v             Open         Pins 5 & 6 closed

                        BIOS SELECTION

        Type                 JP16                 JP17

        1M/5v          Pins 1 & 2 closed   Pins 2 & 3 closed

       1M/12v          Pins 2 & 3 closed   Pins 2 & 3 closed

