
LUCKY STAR TECHNOLOGY CO., LTD.

5V-1A (VER. 2.0)

Device Type     Mainboard
Processor       CX 6X86/CX 6X86L/CX 686MX/CX II/AM K5/AM K6/AM
                K6-2/Pentium/

                Pentium MMX
Processor Speed 75/90/100/120/133/150/166/180/200/233/266/300MHz
Chip Set        VIA Apollo VPX
Video Chip Set  None
Maximum Onboard 512MB (EDO & SDRAM supported)
Memory
Maximum Video   None
Memory
Cache           256/512KB
BIOS            Award
Dimensions      225mm x 220mm
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 connector, USB connectors
                (2)

[Image]

                                CONNECTIONS

  Purpose               Location       Purpose               Location

  IR connector             CN1         Turbo LED           CN10/pins 13 &
                                                                14

  PS/2 mouse               CN4         Green PC            CN10/pins 15 &
  interface                            connector                16

  USB connector            CN5         IDE interface LED   CN10/pins 17 &
                                                                18

  USB connector            CN6         IDE interface 2         CN12

  Parallel port            CN8         IDE interface 1         CN13

  Floppy drive             CN9         Serial port 2           CN14
  interface

  Power LED &         CN10/pins 1     Serial port 1           CN15
  keylock                   5

  Speaker             CN10/pins 6 -    32-bit PCI slots      PC1  PC4
                           10

  Reset switch        CN10/pins 11 &
                           12

                        USER CONFIGURABLE SETTINGS

                 Function                     Label          Position

     CMOS memory normal operation             JBAT          Pins 1 & 2
                                                              closed

      CMOS memory clear                        JBAT          Pins 2 & 3
                                                              closed

      PCI CLK select synchronous               JCK4          Pins 1 & 2
                                                              closed

      PCI CLK select asynchronous              JCK4          Pins 2 & 3
                                                              closed

      Flash BIOS voltage select 12v            JROM          Pins 2 & 3
                                                              closed

      Flash BIOS voltage select 5v             JROM          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

         128MB              (2) 16M x 36

         256MB              (2) 32M x 36

            Note: Board accepts EDO memory.

             DIMM CONFIGURATION

     Size          Bank 1        Bank 2

     16MB        (1) 2M x 64      None

     32MB        (1) 4M x 64      None

     32MB        (1) 2M x 64   (1) 2M x 64

           DIMM CONFIGURATION (CONT)

      Size          Bank 1          Bank 2

      48MB        (1) 4M x 64     (1) 2M x 64

      64MB        (1) 8M x 64        None

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

      80MB        (1) 8M x 64     (1) 2M x 64

      96MB        (1) 8M x 64     (1) 4M x 64

     128MB        (1) 8M x 64     (1) 8M x 64

            Note: Board accepts SDRAM memory.

               DIMM VOLTAGE CONFIGURATION

          Voltage                       JD1

            3.3v             Pins 5 & 7, 6 & 8 closed

             5v              Pins 1 & 3, 2 & 4 closed

                 CACHE CONFIGURATION

  Note: The location of the cache is unidentified.

                       CPU SPEED SELECTION (CX 6X86)

   CPU     Clock   Multiplier    JBFO    JBF1   JBF2   JCK1   JCK2   JCK3
  speed    speed

  120MHz   50MHz       2x       Closed   Open   Open   2 &    2 &     2 &
                                                        3      3      3

  133MHz   55MHz       2x       Closed   Open   Open   2 &    2 &     1 &
                                                        3      3      2

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

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

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (CX 6X86L)

   CPU     Clock   Multiplier    JBFO    JBF1   JBF2   JCK1   JCK2   JCK3
  speed    speed

  133MHz   55MHz       2x       Closed   Open   Open   2 &    2 &     1 &
                                                        3      3      2

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

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

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

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (CX 6X86MX)

   CPU     Clock   Multiplier    JBFO     JBF1    JBF2   JCK1   JCK2   JCK3
  speed    speed

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

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

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

  Note: Pins designated should be in the closed position.

                       CPU SPEED SELECTION (CX M II)

   CPU      Clock   Multiplier   JBFO   JBF1    JBF2   JCK1   JCK2   JCK3
  speed    speed

  300MHz   66MHz       3.5x      Open   Open    Open   2 &    1 &     2 &
                                                        3      2      3

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (AM K5)

   CPU     Clock   Multiplier    JBFO     JBF1    JBF2   JCK1   JCK2   JCK3
  speed    speed

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

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

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

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

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

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

  Note: Pins designated should be in the closed position.

                         CPU SPEED SELECTION (AM K6)

   CPU     Clock   Multiplier    JBFO     JBF1     JBF2    JCK1   JCK2   JCK3
  speed    speed

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

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

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

  266MHz   66MHz       4x       Closed    Open    Closed   2 &    1 &    2 &
                                                            3      2      3

  300MHz   66MHz      4.5x      Closed   Closed   Closed   2 &    1 &    2 &
                                                            3      2      3

  Note: Pins designated should be in the closed position.

                       CPU SPEED SELECTION (AM K6-2)

   CPU     Clock   Multiplier    JBFO    JBF1    JBF2    JCK1   JCK2   JCK3
  speed    speed

  266MHz   66MHz       4x       Closed   Open   Closed   2 &    1 &    2 &
                                                          3      2      3

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

   CPU     Clock   Multiplier    JBFO     JBF1    JBF2   JCK1   JCK2   JCK3
  speed    speed

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

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

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

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

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

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

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

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

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

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (INTEL MMX)

   CPU     Clock   Multiplier    JBFO     JBF1    JBF2   JCK1   JCK2   JCK3
  speed    speed

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

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

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

  Note: Pins designated should be in the closed position.

                      CPU VOLTAGE SELECTION (SINGLE)

       Voltage              JPW1               JV1              JV2

        3.3v           1 & 2, 5 & 6, 7        Open             1 & 2
                            & 8

     3.4v  3.6v       1 & 2, 3 & 4, 5        Open             1 & 2
                         & 6, 7 & 8

  Note: Pins designated should be in the closed position.

                       CPU VOLTAGE SELECTION (DUAL)

    Voltage         V core           JPW1           JV1           JV2

      3.3v           2.2v        1 & 2, 7 & 8    1 & 2, 3 &      2 & 3
                                                     4

      3.3v           2.8v           7 & 8        1 & 2, 3 &      1 & 2
                                                     4

      3.3v           2.9v        1 & 2, 7 & 8    1 & 2, 3 &      1 & 2
                                                     4

      3.3v           3.2v        5 & 6, 7 & 8    1 & 2, 3 &      1 & 2
                                                     4

  Note: Pins designated should be in the closed position.

