
SOYO COMPUTER CO., LTD.

5EA5/A5C

Processor        CX 6X86/CX 6X86L/CX 6X86MX/AM K5/AM K6/Pentium
Processor Speed  75/90/100/120/133/150/166/180/200/233/266MHz
Chip Set         Unidentified
Video Chip Set   None
Maximum Onboard  256MB (EDO supported)
Memory
Maximum Video    None
Memory
Cache            512KB
BIOS             Unidentified
Dimensions       254mm x 218mm
I/O Options      32-bit PCI slots (3), floppy drive interface, green PC
                 connector, IDE interfaces (2), parallel port, PS/2 mouse
                 port, serial ports (2), IR connector, USB connector
NPU Options      None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  PS/2 mouse port            CN1       Serial port 1              CN9

  Floppy drive interface     CN2       Power LED & keylock        J17

  USB connector              CN3       Speaker                    J18

  Serial port 2              CN4       Reset switch               J19

  IR connector               CN5       Green PC connector         J23

  Parallel port              CN6       IDE interface LED          J24

  IDE interface 2            CN7       32-bit PCI slots         PC1 - PC3

  IDE interface 1            CN8

                        USER CONFIGURABLE SETTINGS

                 Function                     Label          Position

     CMOS memory normal operation             JP5           Pins 1 & 2
                                                              closed

      CMOS memory clear                        JP5           Pins 2 & 3
                                                              closed

     PCI bus select synchronous               JP16          Pins 1 & 2
                                                              closed

      PCI bus select asynchronous              JP16          Pins 2 & 3
                                                              closed

      EMI signals disabled                     JP25           Closed

      EMI signals enabled                      JP25            Open

                      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

        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. Banks are interchangeable.

      DIMM CONFIGURATION

     Size          Bank 0

      8MB       (1) 1M x 64

     16MB       (1) 2M x 64

     32MB       (1) 4M x 64

     64MB       (1) 8M x 64

              CACHE CONFIGURATION

      Size          Bank 0           TAG

     512KB        (2) 64K x 32   (1) 16K x 8

                   CPU SPEED SELECTION (CX 6X86/6X 86L)

    CPU      Clock   Multiplier    JP10    JP11    JP12    JP13     JP14
  speed     speed

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

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

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

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

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

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (CX 6X86MX)

    CPU     Clock    Multiplier    JP10   JP11    JP12    JP13     JP14
  speed     speed

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

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

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

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

  266MHz    75MHz        3x        1 &     2 &    1 &     Open     Closed
                                    2      3       2

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (AM K5)

    CPU     Clock    Multiplier    JP10   JP11    JP12    JP13     JP14
  speed     speed

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

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

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

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

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

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

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

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (AM K6)

    CPU     Clock    Multiplier    JP10   JP11    JP12    JP13     JP14
  speed     speed

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

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

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

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

    CPU     Clock    Multiplier    JP10   JP11    JP12    JP13     JP14
  speed     speed

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

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

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

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

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

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

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

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

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

  Note: Pins designated should be in the closed position.

                      CPU VOLTAGE SELECTION (SINGLE)

        Voltage              JP30            JP31              JP32

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

          3.52v             Open        1 & 2, 3 & 4          3 & 4

  Note: Pins designated should be in the closed position.

                       CPU VOLTAGE SELECTION (DUAL)

       Voltage               JP30             JP31             JP32

          2.8v          1 & 2, 3 & 4         Open             5 & 6

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

  Note: Pins designated should be in the closed position.

