
SOYO COMPUTER CO., LTD.

SY-5BT5 (VER. 1.1)

Device Type       Mainboard
Processor         CX 6X86/CX 6X86L/AM K5/AM K6/Pentium
Processor Speed   90/100/120/133/150/166/180/200/233/266MHz
Chip Set          Intel
Maximum Onboard   256MB (EDO & SDRAM supported)
Memory
Cache             512KB
BIOS              Unidentified
Dimensions        254mm x 218mm
I/O Options       32-bit PCI slots (4), floppy drive interface, IDE
                  interfaces (2), parallel port, PS/2 mouse port, serial
                  ports (2), IR connector, USB connector, ATX power
                  connector

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  ATX power connector        ATX       Power LED & keylock        J17

  Serial port                CN1       Speaker                    J18

  Serial port                CN2       Reset switch               J19

  Parallel port              CN3       IDE interface LED          J24

  Floppy drive interface     CN4       CPU cooling fan            JP43

  IDE interface              CN5       32-bit PCI slots         PC1  PC4

  IDE interface              CN6       Soft off power supply      PW2

  PS/2 mouse port            CN7       USB connector              USB

  IR connector               IR1

  USER CONFIGURABLE SETTINGS

  Function                                Label          Position

     CMOS memory normal operation        JP5            Pins 1 & 2
                                                         closed

      CMOS memory clear                   JP5            Pins 2 & 3
                                                         closed

     Factory configured - do not alter   JP40           Closed
      (CE test jumper)

     Factory configured - do not alter   SW2            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

     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.

              DIMM CONFIGURATION

      Size          Bank 2          Bank 3

      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

  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   SW1/1    SW1/2   SW1/3   SW1/4   SW1/5
  speed     speed

  133MHz    55MHz        2x        On      Off      On      On      Off

  150MHz    60MHz        2x        On      Off      On      Off     Off

  166MHz    66MHz        2x        On      Off     Off      Off     Off

  200MHz    75MHz        2x        On      Off     Off      On      Off

  CPU SPEED SELECTION (AM K5)

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

  90MHz    60MHz     1.5x         Off     Off      On      Off     Off

  100MHz   66MHz     1.5x         Off     Off      Off     Off     Off

  120MHz   60MHz     1.5x         Off     Off      On      Off     Off

  133MHz   66MHz     1.5x         Off     Off      Off     Off     Off

  150MHz   50MHz     2x           On      Off      On      Off     Off

  166MHz   66MHz     2.5x         On      On       Off     Off     Off

                        CPU SPEED SELECTION (AM K6)

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

  150MHz    50MHz        2x        On      Off      On      Off     Off

  166MHz    66MHz       2.5x       On       On     Off      Off     Off

  200MHz    66MHz        3x        Off      On     Off      Off     Off

  233MHz    66MHz       3.5x       Off     Off     Off      Off     Off

  266MHz    66MHz        4x        On      Off     Off      Off     Off

                        CPU SPEED SELECTION (INTEL)

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

  90MHz     60MHz       1.5x       Off     Off      On      Off     Off

  100MHz    66MHz       1.5x       Off     Off     Off      Off     Off

  120MHz    60MHz        2x        On      Off      On      Off     Off

  133MHz    66MHz        2x        On      Off     Off      Off     Off

  150MHz    60MHz       2.5x       On       On      On      Off     Off

  166MHz    66MHz       2.5x       On       On     Off      Off     Off

  180MHz    60MHz        3x        Off      On      On      Off     Off

  200MHz    66MHz        3x        Off      On     Off      Off     Off

  233MHz    66MHz       3.5x       Off     Off     Off      Off     Off

  CPU VOLTAGE SELECTION (SINGLE)

  Voltage                     JP30

  3.3v                        Pins 1 & 2, 7 & 8 closed

   3.52v                     Pins 1 & 2, 9 & 10 closed

               CPU VOLTAGE SELECTION (DUAL)

           Voltage                       JP30

            2.8v              Pins 1 & 2, 9 & 10 closed

            2.9v              Pins 3 & 4, 9 & 10 closed

            3.2v              Pins 5 & 6, 9 & 10 closed

  POWER SUPPLY SELECTION

  Setting            ATP1             JP44               PW3

   AT               Closed           Pins 1 & 2         Open
                                      closed

  ATX                Open             Pins 2 & 3         Closed
                                      closed

