
MICRO-STAR INTERNATIONAL CO., LTD.

MS-5156

Processor          CX 6X86/CX 6X86L/CX 6X86MX/AM K5/AM K6/Pentium
Processor Speed    90/100/120/133/150/166/200/233/266MHz
Chip Set           Intel
Video Chip Set     None
Maximum Onboard    256MB (EDO supported)
Memory
Maximum Video      None
Memory
Cache              512KB
BIOS               Unidentified
Dimensions         250mm x 220mm
I/O Options        32-bit PCI slots (5), floppy drive interface, green PC
                   connector, IDE IDE interfaces (2), parallel port, PS/2
                   mouse port, PS/2 mouse interface, serial ports (2), IR
                   connector, USB connector, ATX power connector
NPU Options        None

[Image]

                                CONNECTIONS

  Purpose               Location       Purpose                Location

  ATX power                ATX         Turbo switch        JFP1/pins 15 -
  connector                                                      17

  Serial port 2            CN1         Reset switch        JFP1/pins 19 &
                                                                 20

  Serial port 1            CN2         IDE interface LED   JFP1/pins 21 &
                                                                 22

  Floppy drive             CN3         Green PC LED             JGL1
  interface

  Parallel port            CN4         Green PC                 JGS1
                                       connector

  IDE interface 2          CN5         IR connector             JIR1

  IDE interface 1          CN6         PS/2 mouse               JMS1
                                       interface

  CPU fan                 JFAN1        Power fan               JPFAN

  CPU fan                 JFAN2        Chassis fan power       JSFAN

  Power LED &         JFP1/pins 1 -    32-bit PCI slots      PC1  PC5
  keylock                   5

  Speaker             JFP1/pins 7 -    USB connector            USB
                           10

  Turbo LED           JFP1/pins 12 &
                           13

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     Factory configured - do not           J10          Unidentified
      alter

     CMOS memory normal operation         JBAT1       Pins 1 & 2 closed

      CMOS memory clear                    JBAT1       Pins 2 & 3 closed

     Factory configured - do not          JRMC1         Unidentified
      alter

     Factory configured - do not          JRMS1         Unidentified
      alter

     Factory configured - do not          JRMS2         Unidentified
      alter

     Factory configured - do not           JV8          Unidentified
      alter

              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

                        SIMM CONFIGURATION (CONT)

          Size                    Bank 0                   Bank 1

          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. Do not install SIMMs & DIMMs at the
  same time. If both are used, DIMMs must be 5v.

              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

               DIMM VOLTAGE CONFIGURATION

          Voltage                       JV1

            3.3v             Pins 1 & 2, 3 & 4 closed

             5v              Pins 5 & 6, 7 & 8 closed

               CACHE CONFIGURATION

          Size                    Bank 0

          512KB                (2) 64K x 32

  Note: The location of bank 0 is unidentified.

                     CPU SPEED SELECTION (CX 6X86/6X86L)

   CPU     Clock   Multiplier   SW1/1   SW1/2   SW1/3   SW1/4   SW1/5   SW1/6
  speed    speed

  133MHz   55MHz       2x        On      Off     Off     On      On     Off

  150MHz   60MHz       2x        On      Off     Off     On     Off     Off

  166MHz   66MHz       2x        On      Off     Off    Off     Off     Off

                       CPU SPEED SELECTION (CX 6X86MX)

   CPU     Clock   Multiplier   SW1/1   SW1/2   SW1/3   SW1/4   SW1/5   SW1/6
  speed    speed

  166MHz   60MHz      2.5x       On      On      Off     On     Off     Off

  166MHz   66MHz       2x        On      Off     Off    Off     Off     Off

  200MHz   75MHz       2x        On      Off     Off    Off      On     Off

  200MHz   66MHz      2.5x       On      On      Off    Off     Off     Off

  233MHz   66MHz       3x        Off     On      Off    Off     Off     Off

  233MHz   75MHz      2.5x       On      On      Off    Off      On     Off

  266MHz   66MHz      3.5x       Off     Off     Off    Off     Off     Off

  266MHz   75MHz       3x        Off     On      Off    Off      On     Off

                         CPU SPEED SELECTION (AM K6)

   CPU     Clock   Multiplier   SW1/1   SW1/2   SW1/3   SW1/4   SW1/5   SW1/6
  speed    speed

  166MHz   66MHz      2.5x       On      On      Off    Off     Off     Off

  200MHz   66MHz       3x        Off     On      Off    Off     Off     Off

  233MHz   66MHz      3.5x       Off     Off     Off    Off     Off     Off

                         CPU SPEED SELECTION (AM K5)

   CPU     Clock   Multiplier   SW1/1   SW1/2   SW1/3   SW1/4   SW1/5   SW1/6
  speed    speed

  90MHz    60MHz      1.5x       Off     Off     Off     On     Off     Off

  100MHz   66MHz      1.5x       Off     Off     Off    Off     Off     Off

  120MHz   60MHz       2x        On      Off     Off     On     Off     Off

  133MHz   66MHz       2x        On      Off     Off    Off     Off     Off

  150MHz   66MHz       2x        On      Off     Off    Off     Off     Off

  166MHz   66MHz      2.5x       On      On      Off    Off     Off     Off

                         CPU SPEED SELECTION (INTEL)

   CPU     Clock   Multiplier   SW1/1   SW1/2   SW1/3   SW1/4   SW1/5   SW1/6
  speed    speed

  90MHz    60MHz      1.5x       Off     Off     Off     On     Off     Off

  100MHz   66MHz      1.5x       Off     Off     Off    Off     Off     Off

  120MHz   60MHz       2x        On      Off     Off     On     Off     Off

  133MHz   66MHz       2x        On      Off     Off    Off     Off     Off

  150MHz   60MHz      2.5x       On      On      Off     On     Off     Off

  166MHz   66MHz      2.5x       On      On      Off    Off     Off     Off

  200MHz   66MHz       3x        Off     On      Off    Off     Off     Off

  233MHz   66MHz      3.5x       Off     Off     Off    Off     Off     Off

            CPU VOLTAGE SELECTION (SINGLE)

  Voltage     JV2        JV3        JV4        JV5

   3.3v      Closed      Open     Closed     Closed

   3.5v      Closed     Closed    Closed     Closed

                  CPU VOLTAGE SELECTION (DUAL)

  Voltage    V core       JV2        JV3        JV4       JV5

   3.3v       2.1v      Closed      Open       Open       Open

   3.3v       2.2v       Open      Closed      Open       Open

   3.3v       2.3v      Closed     Closed      Open       Open

   3.3v       2.4v       Open       Open      Closed      Open

   3.3v       2.5v      Closed      Open      Closed      Open

   3.3v       2.6v       Open      Closed     Closed      Open

   3.3v       2.7v      Closed     Closed     Closed      Open

   3.3v       2.8v       Open       Open      Closed     Closed

   3.3v       2.9v      Closed      Open       Open      Closed

   3.3v       3.2v       Open       Open      Closed     Closed

                           FLASH BIOS SELECTION

         Setting                    JP1                     JP2

              5v             Pins 1 & 2 closed       Pins 1 & 2 closed

            12v             Pins 2 & 3 closed       Pins 2 & 3 closed

