
TYAN COMPUTER CORPORATION

S1471

Device Type          Mainboard
Processor            CX 6X86/IBM 6X86/SGS 6X86/CX M1/Pentium
Processor Speed      75/90/100/120/133/150/166/200MHz
Chip Set             Intel
Video Chip Set       None
Maximum Onboard      128MB (EDO & SDRAM supported)
Memory
Maximum Video Memory None
Cache                256/512KB
BIOS                 AMI, Award
Dimensions           330mm x 218mm
I/O Options          32-bit PCI slots (5), floppy drive interface, IDE
                     interfaces (2), parallel port, PS/2 mouse interface,
                     serial ports (2), IR connector (2), USB connectors (2)
NPU Options          None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Serial port 2              CN1       Reset switch               J41

  Serial port 1              CN2       Speaker                    J42

  Floppy drive interface     CN3       IDE interface LED          J43

  Parallel port              CN4       Power LED & keylock        J47

  IDE interface 2            CN5       Turbo LED                  J48

  IDE interface 1            CN6       Turbo switch               J49

  PS/2 mouse interface       CN7       32-bit PCI slots         PC1  PC5

  IR connector               CON9      USB connector 1            USB1

  IR connector              CON10      USB connector 2            USB2

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     Factory configured - do not           J16          Unidentified
      alter

     Factory configured - do not           J18          Unidentified
      alter

     Factory configured - do not           J19          Unidentified
      alter

     Factory configured - do not           J31          Unidentified
      alter

     Factory configured - do not           J32          Unidentified
      alter

     Factory configured - do not           J36          Unidentified
      alter

     Factory configured - do not           J37          Unidentified
      alter

     CMOS memory normal operation          J45              Open

      CMOS memory clear                     J45             Closed

     Factory configured - do not           J46          Unidentified
      alter

     Factory configured - do not           J50        Pins 1 & 2 closed
      alter

     Factory configured - do not           JP4          Unidentified
      alter

     Factory configured - do not           JP5          Unidentified
      alter

             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

         SIMM CONFIGURATION (CONT)

     Size          Bank 0        Bank 1

     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

  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) 8M x 64     (1) 8M x 64

            Note: Board accepts SDRAM memory.

                        DIMM VOLTAGE CONFIGURATION

   Voltage         J3          J5          J6          J7          J8

       3.3v      Closed       Open       Closed       Open       Closed

       5v        Open       Closed       Open       Closed       Open

                    DIMM VOLTAGE CONFIGURATION (CONT)

    Voltage          J9           J11         JP1        JP2       JP3

        3.3v        Open          Open       2 & 3      2 & 3     2 & 3

        5v        Closed        Closed      1 & 2      1 & 2     1 & 2

  Note: Pins designated should be in the closed position.

              CACHE CONFIGURATION

      Size          Bank 0           TAG

     256KB        (2) 32K x 32   Unidentified

     512KB        (2) 64K x 32   Unidentified

                       CPU SPEED SELECTION (CX 6X86)

  CPU speed      Clock      Multiplier      J15        J39        J40
                speed

   120MHz       50MHz           2x         1 & 2,     Open       Closed
                                           3 & 4

   150MHz       60MHz           2x         3 & 4      Open       Closed

   166MHz       66MHz           2x         1 & 2      Open       Closed

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (IBM 6X86)

  CPU speed      Clock      Multiplier      J15        J39        J40
                speed

   120MHz       50MHz           2x         1 & 2,     Open       Closed
                                           3 & 4

   150MHz       60MHz           2x         3 & 4      Open       Closed

   166MHz       66MHz           2x         1 & 2      Open       Closed

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (SGS 6X86)

  CPU speed      Clock      Multiplier      J15        J39        J40
                speed

   120MHz       50MHz           2x         1 & 2,     Open       Closed
                                           3 & 4

   150MHz       60MHz           2x         3 & 4      Open       Closed

   166MHz       66MHz           2x         1 & 2      Open       Closed

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (CX M1)

  CPU speed      Clock      Multiplier      J15        J39        J40
                speed

   120MHz       50MHz           2x         1 & 2,     Open       Closed
                                           3 & 4

   150MHz       60MHz           2x         3 & 4      Open       Closed

   166MHz       66MHz           2x         1 & 2      Open       Closed

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

  CPU speed     Clock      Multiplier      J15        J39          J40
                speed

   75MHz        50MHz         1.5x        1 & 2,      Open        Open
                                          3 & 4

   90MHz        60MHz         1.5x        3 & 4       Open        Open

   100MHz       66MHz         1.5x        1 & 2       Open        Open

   120MHz       60MHz          2x         3 & 4       Open       Closed

   133MHz       66MHz          2x         1 & 2       Open       Closed

   150MHz       60MHz         2.5x        3 & 4      Closed      Closed

   166MHz       66MHz         2.5x        1 & 2      Closed      Closed

   200MHz       66MHz          3x         1 & 2      Closed       Open

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (INTEL MMX)

  CPU speed      Clock     Multiplier      J15        J39          J40
                speed

   166MHz       66MHz         2.5x        1 & 2      Closed      Closed

   200MHz       66MHz          3x         1 & 2      Closed       Open

  Note: Pins designated should be in the closed position.

                            CPU TYPE SELECTION

     Type        J20       J21       J22      J23       J24        J35

      Cyrix     Open      Closed    Open     Closed     Open       Open

       IBM      Open      Closed    Open     Closed     Open       Open

       SGS      Open      Closed    Open     Closed     Open       Open

     Intel    Closed      Open     Open      Open     Closed     Closed

      Intel   Closed      Open     Open      Open     Closed     Closed
       MMX

                         SERIAL PORT SELECTION

        Setting                   J13                     J14

  Used as serial port      Pins 1 & 2 closed       Pins 1 & 2 closed

  Used as IR connector     Pins 2 & 3 closed       Pins 2 & 3 closed

