
TYAN COMPUTER CORPORATION

S1672

Processor                Pentium Pro
Processor Speed          150/166/180/200MHz
Chip Set                 Intel
Video Chip Set           None
Maximum Onboard Memory   768MB (EDO supported)
Maximum Video Memory     None
Cache                    256/512KB (located on Pentium Pro CPU)
BIOS                     AMI/Award
Dimensions               330mm 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 connectors
                         (2), ATX power connector, soft on power supply
NPU Options              None

[Image]

                                CONNECTIONS

  Purpose                Location     Purpose                 Location

  ATX power                ATX        Soft on power          J26 pins 1 &
  connector                           supply                      2

  Serial port 1            CN1        IR connector           J26 pins 6 -
                                                                 11

  Parallel port            CN2        IDE interface LED     J26 pins 15 &
                                                                 16

  PS/2 mouse port          CN3        Power LED             J26 pins 18 &
                                                                 20

  Serial port 2            CN4        Reset switch          J26 pins 22 &
                                                                 23

  Floppy drive             CN5        Speaker               J26 pins 24 -
  interface                                                      27

  IDE interface 1          CN6        Keylock                    JP1

  IDE interface 2          CN7        32-bit PCI slots        PC1 - PC4

  IR connector             CON7       USB connector             USB1

  Chassis fan power        J14        USB connector             USB2

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     Power supply select ATX               J4               Open

      Power supply select AT                J4              Closed

      SMC I/O chip type select 665IR        J10        Pins 1 & 2 closed

      SMC I/O chip type select 669IR        J10        Pins 2 & 3 closed

     Factory configured - do not           J21          Unidentified
      alter

     Factory configured - do not           J28          Unidentified
      alter

     Factory configured - do not           J29          Unidentified
      alter

     CMOS memory normal operation          J42              Open

      CMOS memory clear                     J42             Closed

     Flash BIOS voltage select 5v          J43        Pins 1 & 2 closed

      Flash BIOS voltage select 12v         J43        Pins 2 & 3 closed

                      DRAM CONFIGURATION

      Size          Bank 0          Bank 1          Bank 2

      8MB         (2) 1M x 32        None            None

      16MB        (2) 2M x 32        None            None

      16MB        (2) 1M x 32     (2) 1M x 32        None

      32MB        (2) 4M x 32        None            None

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

      64MB        (2) 8M x 32        None            None

      64MB        (2) 4M x 32     (2) 4M x 32        None

     128MB        (2) 8M x 32     (2) 8M x 32        None

     128MB       (2) 16M x 32        None            None

     192MB        (2) 8M x 32     (2) 8M x 32    (2) 8M x 32

     256MB       (2) 16M x 32    (2) 16M x 32        None

     256MB       (2) 32M x 32        None            None

     384MB       (2) 16M x 32    (2) 16M x 32    (2) 16M x 32

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

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

  Note: Board accepts EDO memory.

                      CACHE CONFIGURATION

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

                            CPU SPEED SELECTION

  Speed     J6     J19       J20       J30       J31      J32       J33

  150MHz    3 &   Closed     Open    Closed    Closed    Closed    Open
             4

  166MHz    1 &    Open     Closed   Closed    Closed    Closed    Open
             2

  180MHz    3 &   Closed     Open    Closed    Closed     Open     Closed
             4

  200MHz    1 &    Open     Closed   Closed    Closed     Open     Closed
             2

                           CPU VOLTAGE SELECTION

                 Voltage                                J23

                Auto select                            Open

                     2.1v                              1 & 5

                     2.2v                              2 & 6

                     2.3v                           1 & 5, 2 & 6

                     2.4v                              3 & 7

                     2.5v                           1 & 5, 3 & 7

                     2.6v                           2 & 6, 3 & 7

                     2.7v                       1 & 5, 2 & 6, 3 & 7

                     2.8v                              4 & 8

                     2.9v                           1 & 5, 4 & 8

                     3.0v                           2 & 6, 4 & 8

                     3.1v                       1 & 5, 2 & 6, 4 & 8

                     3.2v                           3 & 7, 4 & 8

                     3.3v                       1 & 5, 3 & 7, 4 & 8

                     3.4v                       2 & 6, 3 & 7, 4 & 8

                     3.5v                    1 & 5, 2 & 6, 3 & 7, 4 & 8

  Note: Pins designated should be in the closed position.

