
MICRO-STAR INTERNATIONAL CO., LTD.

MS-5143 (VER. 2)

Processor            CX M1/AM K5/Pentium
Processor Speed      75/90/100/120/133/150/166/200MHz
Chip Set             Intel
Video Chip Set       None
Maximum Onboard      128MB (EDO supported)
Memory
Maximum Video Memory None
Cache                256/512KB
BIOS                 Unidentified
Dimensions           305mm x 235mm
I/O Options          32-bit PCI slots (4), floppy drive interface, green PC
                     connector, IDE interfaces (2), parallel port, PS/2
                     mouse port, serial ports (2), IR connector, USB
                     connector, ATX power connector
NPU Options          None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  ATX power                ATX         Speaker               JFP/pins 7 -
  connector                                                      10

  Serial port 2            CN1         Turbo LED            JFP/pins 12 &
                                                                 13

  Parallel port            CN2         Reset switch         JFP/pins 19 &
                                                                 20

  PS/2 mouse port          CN3         IDE interface LED    JFP/pins 21 &
                                                                 22

  Serial port 1            CN4         Chassis fan power        JFAN

  IDE interface 1          CN5         Green PC LED              JGL

  IDE interface 2          CN6         Green PC connector        JGS

  Floppy drive             CN7         Soft off power           JRMS
  interface                            supply

  Auxiliary keyboard        J1         Speaker                  JSPK
  mouse

  IR connector             IR1         32-bit PCI slots       PC1  PC4

  Power LED &          JFP/pins 1 -    USB connector             USB
  keylock                   5

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     Factory configured - do not           C1           Unidentified
      alter

     Factory configured - do not           JP1          Unidentified
      alter

     Factory configured - do not          JRTC          Unidentified
      alter

                         DIMM/DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2        Bank 3

     8MB        (2) 1M x 36       None           None          None

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

     16MB       (2) 2M x 36       None           None          None

     16MB          None           None       (1) 2M x 64       None

     16MB       (2) 1M x 36   (2) 1M x 36        None          None

     16MB       (2) 1M x 36       None       (1) 1M x 64       None

     24MB          None       (2) 2M x 36    (1) 1M x 64       None

     32MB       (2) 4M x 36       None           None          None

     32MB          None           None       (1) 4M x 64       None

     32MB       (2) 2M x 36       None       (1) 2M x 64       None

     40MB       (2) 4M x 36   (2) 1M x 36        None          None

     40MB       (2) 4M x 36       None       (1) 1M x 64       None

     48MB       (2) 2M x 36       None       (1) 4M x 64       None

     48MB       (2) 4M x 36   (2) 2M x 36        None          None

     64MB       (2) 8M x 36       None           None          None

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

     64MB       (2) 4M x 36   (2) 4M x 36        None          None

     64MB       (2) 4M x 36       None       (1) 4M x 64       None

     64MB          None           None       (1) 4M x 64    (1) 4M x 64

     72MB       (2) 8M x 36   (2) 1M x 36        None          None

                      DIMM/DRAM CONFIGURATION (CONT)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

     72MB        (2) 8M x 36       None       (1) 1M x 64        None

     80MB           None       (2) 2M x 36    (1) 8M x 64        None

     80MB        (2) 8M x 36   (2) 2M x 36        None           None

     80MB        (2) 8M x 36       None       (1) 2M x 64        None

     96MB        (2) 8M x 36   (2) 4M x 36        None           None

     96MB        (2) 8M x 36       None       (1) 4M x 64        None

     96MB           None       (2) 8M x 36    (1) 4M x 64        None

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

     128MB       (2) 8M x 36   (2) 8M x 36        None           None

     128MB       (2) 8M x 36       None       (1) 8M x 64        None

  Note: Board accepts EDO memory. Banks 0 & 1 and 2 & 3 are
  interchangeable.

               DIMM VOLTAGE CONFIGURATION

          Voltage                       JP2

            3.3v             Pins 1 & 3, 2 & 4 closed

             5v              Pins 3 & 5, 4 & 6 closed

                            CACHE CONFIGURATION

  Note: Board accepts 256KB/512Kb cache. The size of the chips and
  location are unidentified.

                          CPU SPEED SELECTION (AMD)

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

  75MHz    50MHz      1.5x       Off     Off     On      On     Off     Off

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

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

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

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

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

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

                         CPU SPEED SELECTION (CYRIX)

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

  120MHz   50MHz       2x        On      Off     On      On     Off     Off

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

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

  166MHz   66MHz       2x        On      Off     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

  75MHz    50MHz      1.5x       Off     Off     On      On     Off     Off

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

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

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

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

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

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

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

                      CPU VOLTAGE SELECTION (SINGLE)

   Voltage     JV1       JV2         JV3        JV4      JV5       JV6

    3.38v       3 &     Closed      Open       Open      Open      Open
               5, 4
               & 6

    3.52v       3 &      Open      Closed      Open      Open      Open
               5, 4
               & 6

  Note: Pins designated should be in the closed position.

                       CPU VOLTAGE SELECTION (DUAL)

  Voltage    V core   JV1     JV2     JV3      JV4       JV5       JV6

   3.3v      2.5v      1 &   Open    Open    Closed     Open       Open
                      3, 2
                      & 4

   3.3v      2.8v      1 &   Open    Open     Open     Closed      Open
                      3, 2
                      & 4

   3.3v      2.9v      1 &   Open    Open     Open      Open      Closed
                      3, 2
                      & 4

  Note: Pins designated should be in the closed position.

