
SOYO COMPUTER CO., LTD.

SY-5STM

Device Type   Mainboard
Processor     CX 6X86/CX 686MX/CX MII/AM K5/AM K6/Pentium/Pentium MMX
Processor     90/100/120/133/150/166/180/200/225/233/240/266/300MHz
Speed
Chip Set      SIS 5598
Video Chip    Unidentified
Set
Maximum       256MB (SDRAM supported) Unified Memory Architecture (UMA)
Onboard
Memory
Cache         Unidentified
BIOS          Award
Dimensions    244mm x 190mm
I/O Options   32-bit PCI slots (2), floppy drive interface, IDE interfaces
              (2), parallel port, PS/2 mouse port, serial ports (2), VGA
              port, IR connector, USB connectors (2), ATX power connector,
              line in, line out, microphone in, audio in  CD-ROMs (2),
              wake on LAN connector

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  ATX power connector        ATX       Parallel port              CN7

  Reset switch                C1       USB connector 1            CN8

  Soft off power supply       C2       USB connector 2            CN9

  Turbo LED                   C3       PS/2 mouse port            CN10

  IDE interface LED           C4       IDE interface 2            CN11

  Power LED & keylock         C5       IDE interface 1            CN12

  Speaker                     C6       Floppy drive               CN13
                                       interface

  CPU fan power               C7       Serial port 2              CN14

  Game/MIDI port             CN1       IR connector               IR1

  Microphone in              CN2       Audio in  CD-ROM          JP1

  Line in                    CN3       Audio in  CD-ROM          JP2

  Line out                   CN4       Wake on LAN connector      JP44

  VGA port                   CN5       32-bit PCI slots         PC1  PC2

  Serial port 1              CN6

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     Factory configured - do not           J2           Unidentified
      alter

     Factory configured - do not           J4           Unidentified
      alter

     Factory configured - do not           J5           Unidentified
      alter

     CMOS memory normal operation          JP5        Pins 1 & 2 closed

      CMOS memory clear                     JP5        Pins 2 & 3 closed

     Factory configured - do not          JP22          Unidentified
      alter

             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

           DIMM CONFIGURATION (CONT)

      Size          Bank 0          Bank 1

      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

            Note: Board accepts SDRAM memory.

                 CACHE CONFIGURATION

  Note: The location of the cache is unidentified.

                       CPU SPEED SELECTION (CX 6X86)

    CPU        Clock     Multiplier     JP10     JP11     JP12      JP13
   speed      speed

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

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

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

  Note: Pins designated should be in the closed position.

                   CPU SPEED SELECTION (CX 6X86, CONT)

  CPU speed     Clock      Multiplier      JP14        JP15       JP16
                speed

   150MHz       60MHz          2x          Open        Open      Closed

   166MHz       66MHz          2x          Open        Open      Closed

   200MHz       66MHz          2x         Closed       Open      Closed

                      CPU SPEED SELECTION (CX 6X86MX)

    CPU        Clock     Multiplier     JP10     JP11     JP12      JP13
   speed      speed

  166MHz      60MHz         2.5x       2 & 3    2 & 3     1 & 2    1 & 2

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

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

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

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

  266MHz      83MHz         2.5x       1 & 2    1 & 2     2 & 3    2 & 3

  Note: Pins designated should be in the closed position.

                  CPU SPEED SELECTION (CX 6X86MX, CONT)

  CPU speed     Clock      Multiplier      JP14        JP15       JP16
                speed

   166MHz       60MHz         2.5x        Closed       Open      Closed

   166MHz       66MHz          2x          Open        Open      Closed

   200MHz       66MHz         2.5x        Closed       Open      Closed

   200MHz       75MHz          2x          Open        Open      Closed

   233MHz       75MHz         2.5x        Closed       Open      Closed

   266MHz       83MHz         2.5x        Closed       Open      Closed

                       CPU SPEED SELECTION (CX MII)

    CPU        Clock     Multiplier     JP10     JP11     JP12      JP13
   speed      speed

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

  Note: Pins designated should be in the closed position.

                    CPU SPEED SELECTION (CX MII, CONT)

  CPU speed      Clock      Multiplier      JP14       JP15        JP16
                 speed

   300MHz        66MHz         3.5x         Open       Open        Open

                       CPU SPEED SELECTION (IDT C6)

    CPU        Clock     Multiplier     JP10     JP11     JP12      JP13
   speed      speed

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

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

  225MHz      75MHz          3x        1 & 2    2 & 3     1 & 2    1 & 2

  240MHz      60MHz          4x        2 & 3    2 & 3     1 & 2    1 & 2

  Note: Pins designated should be in the closed position.

                    CPU SPEED SELECTION (IDT C6, CONT)

  CPU speed     Clock     Multiplier      JP14        JP15        JP16
               speed

   180MHz      60MHz          3x         Closed       Open        Open

   200MHz      66MHz          3x         Closed       Open        Open

   225MHz      75MHz          3x         Closed       Open        Open

   240MHz      60MHz          4x          Open       Closed      Closed

                        CPU SPEED SELECTION (AM K5)

    CPU        Clock     Multiplier     JP10     JP11     JP12      JP13
   speed      speed

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

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

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

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

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

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

  Note: Pins designated should be in the closed position.

                    CPU SPEED SELECTION (AM K5, CONT)

  CPU speed     Clock      Multiplier      JP14        JP15       JP16
                speed

   90MHz        60MHz         1.5x         Open        Open       Open

   100MHz       66MHz         1.5x         Open        Open       Open

   120MHz       60MHz          2x          Open        Open      Closed

   133MHz       66MHz          2x          Open        Open      Closed

   150MHz       60MHz         2.5x        Closed       Open      Closed

   166MHz       66MHz         2.5x        Closed       Open      Closed

                        CPU SPEED SELECTION (AM K6)

    CPU        Clock     Multiplier     JP10     JP11     JP12      JP13
   speed      speed

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

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

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

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

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

  Note: Pins designated should be in the closed position.

                    CPU SPEED SELECTION (AM K6, CONT)

  CPU speed     Clock     Multiplier      JP14        JP15        JP16
               speed

   166MHz      66MHz         2.5x        Closed       Open       Closed

   200MHz      66MHz          3x         Closed       Open        Open

   233MHz      66MHz         3.5x         Open        Open        Open

   266MHz      66MHz          4x          Open       Closed      Closed

   300MHz      66MHz         4.5x        Closed      Closed      Closed

                       CPU SPEED SELECTION (AM K6-2)

    CPU        Clock     Multiplier     JP10     JP11     JP12      JP13
   speed      speed

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

  Note: Pins designated should be in the closed position.

                   CPU SPEED SELECTION (AM K6-2, CONT)

  CPU speed     Clock      Multiplier     JP14        JP15        JP16
                speed

   266MHz       66MHz          4x         Open       Closed      Closed

                        CPU SPEED SELECTION (INTEL)

    CPU        Clock     Multiplier     JP10     JP11     JP12      JP13
   speed      speed

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

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

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

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

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

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

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

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

  Note: Pins designated should be in the closed position.

                    CPU SPEED SELECTION (INTEL, CONT)

  CPU speed     Clock      Multiplier      JP14        JP15       JP16
                speed

   90MHz        60MHz         1.5x         Open        Open       Open

   100MHz       66MHz         1.5x         Open        Open       Open

   120MHz       60MHz          2x          Open        Open      Closed

   133MHz       66MHz          2x          Open        Open      Closed

   150MHz       60MHz         2.5x        Closed       Open      Closed

   166MHz       66MHz         2.5x        Closed       Open      Closed

   180MHz       60MHz          3x         Closed       Open       Open

   200MHz       66MHz          3x         Closed       Open       Open

                      CPU SPEED SELECTION (INTEL MMX)

    CPU        Clock     Multiplier     JP10     JP11     JP12      JP13
   speed      speed

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

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

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

  Note: Pins designated should be in the closed position.

                  CPU SPEED SELECTION (INTEL MMX, CONT)

  CPU speed      Clock      Multiplier      JP14        JP15       JP16
                speed

   180MHz       60MHz           3x         Closed       Open       Open

   200MHz       66MHz           3x         Closed       Open       Open

   233MHz       66MHz          3.5x         Open        Open       Open

                           CPU VOLTAGE SELECTION

                Voltage                                JP17

                  Single                              Open

                    Dual                     Pins 1 & 2, 3 & 4 closed

                           CPU VOLTAGE SELECTION

  Voltage    JP30/pins   JP30/pins    JP30/pins    JP30/pins    JP30/pins

               1 & 2       3 & 4        5 & 6        7 & 8       9 & 10

   2.2v        Open         Open         Open       Closed        Open

   2.8v        Open        Closed        Open        Open         Open

   2.9v        Open        Closed        Open        Open        Closed

   3.2v        Open        Closed       Closed       Open         Open

   3.52v       Open        Closed       Closed      Closed       Closed

