
PC CHIPS MANUFACTURING, LTD.

M558

Device Type       Mainboard
Processor         CX 6X86/CX 6X86L/CX 6X86MX/IBM 6X86/IBM 6X86L/IBM
                  6X86MX/AM K5/AM K6/IDT C6/Pentium/Pentium MMX
Processor Speed   75/90/100/120/133/150/166/180/200/233MHz
Chip Set          Intel VX Pro II
Video Chip Set    None
Maximum Onboard   128MB (EDO 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, IDE
                  interfaces (2), parallel port, serial ports (2)
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  Serial port 1            CN1         IDE interface LED     CN7/pins 2 &
                                                                 10

  Serial port 2            CN2         Speaker               CN7/pins 5 -
                                                                  8

  Parallel port            CN3         Power LED &          CN7/pins 12 -
                                       keylock                   16

  Floppy drive             CN4         Chassis fan power         FAN
  interface

  IDE interface 1          CN5         IR connector              IR2

  IDE interface 2          CN6         32-bit PCI slots       PC1  PC4

  Reset switch         CN7/pins 1 &    USB connector            USB1
                            9

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     CMOS memory normal operation          J1         Pins 1 & 2 closed

      CMOS memory clear                     J1         Pins 2 & 3 closed

     Factory configured - do not           JP4          Unidentified
      alter

      Internal power good selector          JP7        Pins 1 & 2 closed

      External power good selector          JP7        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

            Note: Board accepts EDO memory.

                        CACHE CONFIGURATION

      Size            Bank 0           Bank 1            SL1

      256KB        (2) 32K x 32         None        Not installed

      512KB        (2) 32K x 32     (2) 32K x 32    Not installed

  Note: The location of banks 0 & 1 are unidentified.

        CACHE JUMPER CONFIGURATION

        Size                 JP9

        256KB         Pins 1 & 2 closed

        512KB         Pins 2 & 3 closed

                       CPU SPEED SELECTION (CX 6X86)

    CPU       Clock     Multiplier    JP1     JP2     JP3    JP5     JP6
   speed      speed

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

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

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

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (IBM 6X86)

    CPU       Clock     Multiplier    JP1     JP2     JP3    JP5     JP6
   speed      speed

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

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

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

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (CX 6X86L)

    CPU       Clock     Multiplier    JP1     JP2     JP3    JP5     JP6
   speed      speed

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

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

  200MHz      75MHz         2x        1 & 2  2 & 3   2 & 3   1 & 2   2 &
                                                                      3

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (IBM 6X86L)

    CPU       Clock     Multiplier    JP1     JP2     JP3    JP5     JP6
   speed      speed

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

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

  200MHz      75MHz         2x        1 & 2  2 & 3   2 & 3   1 & 2   2 &
                                                                      3

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (CX 6X86MX)

    CPU       Clock     Multiplier    JP1     JP2     JP3    JP5     JP6
   speed      speed

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

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

  233MHz      75MHz        2.5x       1 & 2  2 & 3   2 & 3   2 & 3   2 &
                                                                      3

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

  Note: Pins designated should be in the closed position.

                     CPU SPEED SELECTION (IBM 6X86MX)

    CPU       Clock     Multiplier    JP1     JP2     JP3    JP5     JP6
   speed      speed

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

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

  233MHz      75MHz        2.5x       1 & 2  2 & 3   2 & 3   2 & 3   2 &
                                                                      3

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

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (AM K5)

    CPU       Clock     Multiplier    JP1     JP2     JP3    JP5     JP6
   speed      speed

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

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

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

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

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

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

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

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

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

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (AM K6)

    CPU       Clock     Multiplier    JP1     JP2     JP3    JP5     JP6
   speed      speed

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

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

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

  Note: Pins designated should be in the closed position.

                       CPU SPEED SELECTION (IDT C6)

    CPU       Clock     Multiplier    JP1     JP2     JP3    JP5     JP6
   speed      speed

  150MHz      50MHz         3x        2 & 3  2 & 3   1 & 2   2 & 3   1 &
                                                                      2

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

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

    CPU       Clock     Multiplier    JP1     JP2     JP3    JP5     JP6
   speed      speed

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

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

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

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

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

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

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

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

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

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (INTEL MMX)

    CPU       Clock     Multiplier    JP1     JP2     JP3    JP5     JP6
   speed      speed

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

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

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

  Note: Pins designated should be in the closed position.

                    CPU TYPE SELECTION

        Type                         JP10

       AM K5          Pins 2 & 3 closed, Pins 5 & 6 closed

       AM K6          Pins 1 & 2 closed, Pins 4 & 5 closed

      CX 6X86         Pins 2 & 3 closed, Pins 5 & 6 closed

      CX 6X86L        Pins 1 & 2 closed, Pins 4 & 5 closed

     CX 6X86MX        Pins 1 & 2 closed, Pins 4 & 5 closed

      IBM 6X86        Pins 2 & 3 closed, Pins 5 & 6 closed

     IBM 6X86L        Pins 1 & 2 closed, Pins 4 & 5 closed

     IBM 6X86MX       Pins 1 & 2 closed, Pins 4 & 5 closed

       IDT C6         Pins 2 & 3 closed, Pins 5 & 6 closed

        P54C          Pins 2 & 3 closed, Pins 5 & 6 closed

        P55C          Pins 1 & 2 closed, Pins 4 & 5 closed

                      CPU VOLTAGE SELECTION

  Voltage     JP11A      JP11B      JP11C      JP11D     JP11E

   2.5v       Open       Open       Open       Open       Open

   2.8v       Open       Open       Open       Open      Closed

   2.9v       Open       Open       Open      Closed      Open

   3.2v       Open       Open      Closed      Open       Open

   3.3v       Open      Closed      Open       Open       Open

   3.5v      Closed      Open       Open       Open       Open

