
TYAN COMPUTER CORPORATION

S1684S

Device Type          Mainboard
Processor            Pentium Pro/Pentium II
Processor Speed      150/166/180/200/233/266/300MHz
Chip Set             Intel
Video Chip Set       None
Maximum Onboard      768MB (EDO supported)
Memory
Maximum Video Memory None
Cache                256/512KB (located on Pentium Pro/Pentium II CPU)
BIOS                 AMI, Award
Dimensions           305mm x 244mm
I/O Options          32-bit PCI slots (4), floppy drive interface, green
                     PC connector, IDE interfaces (2), parallel port, PS/2
                     mouse port, serial ports (2), IR connector, USB
                     connectors (2), ATX power connector
NPU Options          None

[Image]

                                CONNECTIONS

  Purpose               Location       Purpose                Location

  ATX power                ATX         CPU fan fail              J28
  connector                            warning

  Parallel port            CN1         IDE interface LED         J39

  Serial port 2            CN2         Soft off power            J45
                                       supply

  Serial port 1            CN3         Keylock               J49/pins 4 &
                                                                  5

  IDE interface 2          CN6         Soft off power        J50/pins 1 &
                                       supply                     2

  IDE interface 1          CN7         Green PC connector    J50/pins 3 &
                                                                  4

  Floppy drive             CN8         IR connector          J50/pins 8 -
  interface                                                      10

  PS/2 mouse port          J2          IDE interface LED    J50/pins 15 &
                                                                 16

  USB connector 1          J3          Power LED            J50/pins 18 -
                                                                 20

  USB connector 2          J3A         Reset switch         J50/pins 22 &
                                                                 23

  CPU fan power            J24         Speaker              J50/pins 24 -
                                                                 27

  CPU fan power            J25         32-bit PCI slots       PC1  PC4

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     Factory configured - do not          CON7          Unidentified
      alter

      Serial port used as serial            J12        Pins 1 & 2 closed
      port

      Serial port used as IR                J12        Pins 2 & 3 closed
      connector

     Factory configured - do not           J13          Unidentified
      alter

     Factory configured - do not           J17          Unidentified
      alter

     Factory configured - do not           J21          Unidentified
      alter

     Factory configured - do not           J22          Unidentified
      alter

     Factory configured - do not           J29          Unidentified
      alter

     Flash BIOS voltage select 5v          J36        Pins 1 & 2 closed

      Flash BIOS voltage select 12v         J36        Pins 2 & 3 closed

     Factory configured - do not           J46          Unidentified
      alter

     Factory configured - do not           J51          Unidentified
      alter

     CMOS memory normal operation          J52              Open

      CMOS memory clear                     J52             Closed

     Factory configured - do not           J53          Unidentified
      alter

     Factory configured - do not           J54          Unidentified
      alter

                      SIMM CONFIGURATION

      Size          Bank 0          Bank 1          Bank 2

      8MB         (2) 1M x 36        None            None

      16MB        (2) 1M x 36     (2) 1M x 36        None

      16MB        (2) 2M x 36        None            None

      24MB        (2) 1M x 36     (2) 1M x 36    (2) 1M x 36

      32MB        (2) 2M x 36     (2) 2M x 36        None

      32MB        (2) 4M x 36        None            None

      48MB        (2) 2M x 36     (2) 2M x 36    (2) 2M x 36

      64MB        (2) 4M x 36     (2) 4M x 36        None

      64MB        (2) 8M x 36        None            None

      96MB        (2) 4M x 36     (2) 4M x 36    (2) 4M x 36

     128MB        (2) 8M x 36     (2) 8M x 36        None

     128MB       (2) 16M x 36        None            None

     136MB       (2) 16M x 36     (2) 1M x 36        None

     144MB       (2) 16M x 36     (2) 1M x 36    (2) 1M x 36

     144MB       (2) 16M x 36     (2) 2M x 36        None

     160MB       (2) 16M x 36     (2) 2M x 36    (2) 2M x 36

     160MB       (2) 16M x 36     (2) 4M x 36        None

     192MB       (2) 16M x 36     (2) 4M x 36    (2) 4M x 36

     192MB       (2) 16M x 36     (2) 8M x 36        None

     192MB        (2) 8M x 36     (2) 8M x 36    (2) 8M x 36

     256MB       (2) 16M x 36     (2) 8M x 36    (2) 8M x 36

     256MB       (2) 16M x 36    (2) 16M x 36        None

     256MB       (2) 32M x 36        None            None

     264MB       (2) 32M x 36     (2) 1M x 36        None

     272MB       (2) 32M x 36     (2) 1M x 36    (2) 1M x 36

     272MB       (2) 32M x 36     (2) 2M x 36        None

     288MB       (2) 32M x 36     (2) 2M x 36    (2) 2M x 36

     288MB       (2) 32M x 36     (2) 4M x 36        None

     320MB       (2) 32M x 36     (2) 4M x 36    (2) 4M x 36

     320MB       (2) 32M x 36     (2) 8M x 36        None

     384MB       (2) 32M x 36     (2) 8M x 36    (2) 8M x 36

     384MB       (2) 32M x 36    (2) 16M x 36        None

                  SIMM CONFIGURATION (CONT)

      Size          Bank 0          Bank 1          Bank 2

     384MB       (2) 16M x 36    (2) 16M x 36    (2) 16M x 36

     512MB       (2) 32M x 36    (2) 16M x 36    (2) 16M x 36

     512MB       (2) 32M x 36    (2) 32M x 36        None

     768MB       (2) 32M x 36    (2) 32M x 36    (2) 32M x 36

            Note: Board accepts EDO memory.

                        SIMM VOLTAGE CONFIGURATION

     Voltage          J32            J33           J34           J35

         3.3v        Closed        Closed        Closed         Closed

         5v          Open          Open          Open           Open

                    SIMM VOLTAGE CONFIGURATION (CONT)

     Voltage          J41            J43           J47           J48

         3.3v         Open          Open          Open           Open

         5v         Closed        Closed        Closed         Closed

                           CACHE CONFIGURATION

  Note: 256KB/512KB cache is located on the Pentium Pro/Pentium II CPU.

                     CPU SPEED SELECTION (PENTIUM PRO)

    CPU      Clock     Multiplier      J30       J31      J37      J38
  speed      speed

  150MHz     60MHz        2.5x        Open     Closed     3 &     Closed
                                                           4

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

  180MHz     60MHz         3x         Open     Closed     3 &     Closed
                                                           4

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

  Note: Pins designated should be in the closed position.

                 CPU SPEED SELECTION (PENTIUM PRO, CONT)

  CPU speed     Clock     Multiplier       J40         J42         J44
               speed

   150MHz      60MHz         2.5x         Open       Closed      Closed

   166MHz      66MHz         2.5x         Open       Closed      Closed

   180MHz      60MHz          3x         Closed       Open       Closed

   200MHz      66MHz          3x         Closed       Open       Closed

                     CPU SPEED SELECTION (PENTIUM II)

    CPU      Clock     Multiplier      J30       J31      J37      J38
  speed      speed

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

  233MHz     66MHz        3.5x        Open     Closed     3 &     Closed
                                                           4

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

  300MHz     66MHz        4.5x        Open     Closed     3 &     Closed
                                                           4

  Note: Pins designated should be in the closed position.

                  CPU SPEED SELECTION (PENTIUM II, CONT)

  CPU speed     Clock     Multiplier       J40         J42         J44
               speed

   200MHz      66MHz          3x         Closed       Open       Closed

   233MHz      66MHz         3.5x         Open        Open       Closed

   266MHz      66MHz          4x         Closed      Closed       Open

   300MHz      66MHz         4.5x         Open       Closed       Open

