
TYAN COMPUTER CORPORATION

S1662S (REV. 1.2)

Processor                Pentium Pro
Processor Speed          150/166/180/200MHz
Chip Set                 Intel
Video Chip Set           None
Maximum Onboard Memory   1GB (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 (5), floppy drive interface, IDE
                         interfaces (2), parallel port, PS/2 mouse
                         interface, serial ports (2), IR connectors (2),
                         VRM connector, USB connectors (2)
NPU Options              None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Serial port 2              CN1       Turbo switch               J30

  Serial port 1              CN2       Power LED & keylock        J31

  Floppy drive interface     CN3       Speaker                    J33

  Parallel port              CN4       IDE interface LED          J43

  IDE interface 2            CN5       Reset switch               J46

  IDE interface 1            CN6       32-bit PCI slots         PC1 - PC5

  PS/2 mouse interface       CN7       USB connector              UBS1

  IR connector               CON6      USB connector              USB2

  IR connector               CON7      VRM connector              VRM0

  Turbo LED                  J29

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     CMOS memory normal operation          J5               Open

      CMOS memory clear                     J5              Closed

     Flash BIOS voltage select 5v          J9         Pins 1 & 2 closed

      Flash BIOS voltage select 12v         J9         Pins 2 & 3 closed

      Factory configured - do not           J17          Unidentified
      alter

      SMC I/O chip type select 665IR        J34        Pins 1 & 2 closed

      SMC I/O chip type select 669IR        J34        Pins 2 & 3 closed

                            DRAM CONFIGURATION

     Size          Bank 0         Bank 1         Bank 2         Bank 3

      8MB        (2) 1M x 36       None           None           None

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

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

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

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

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

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

     64MB        (2) 8M x 36       None           None           None

     128MB       (2) 16M x 36      None           None           None

     128MB       (2) 4M x 36   (2) 4M x 36    (2) 4M x 36    (2) 4M x 36

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

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

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

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

     256MB       (2) 32M x 36      None           None           None

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

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

                        DRAM CONFIGURATION (CONT)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

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

     640MB       (2) 32M x 36  (2) 16M x 36   (2) 16M x 36   (2) 16M x 36

     768MB       (2) 32M x 36  (2) 32M x 36   (2) 32M x 36       None

     768MB       (2) 32M x 36  (2) 32M x 36   (2) 16M x 36   (2) 16M x 36

     832MB       (2) 32M x 36  (2) 32M x 36   (2) 32M x 36   (2) 8M x 36

     896MB       (2) 32M x 36  (2) 32M x 36   (2) 32M x 36   (2) 16M x 36

    1024MB       (2) 32M x 36  (2) 32M x 36   (2) 32M x 36   (2) 32M x 36

  Note: Board accepts EDO memory. Board also accepts x 32 SIMMs.

                           DRAM VOLTAGE CONFIGURATION

  Voltage    J20     J21      J22      J23      J44      J45      J47      J48

   3.3v     Closed  Closed   Closed   Closed    Open    Open     Open     Open

    5v      Open     Open     Open     Open    Closed   Closed   Closed   Closed

                      CACHE CONFIGURATION

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

                            CPU SPEED SELECTION

  Speed      J14      J15       J24       J25      J27       J28     J32

  150MHz    Open     Closed    Closed    Closed    Open     Closed    3 &
                                                                      4

  166MHz    Closed    Open     Closed    Closed    Open     Closed    1 &
                                                                      2

  180MHz    Open     Closed    Open      Closed   Closed    Closed    3 &
                                                                      4

  200MHz    Closed    Open     Open      Closed   Closed    Closed    1 &
                                                                      2

  Note: Pins designated should be in the closed position.

                           CPU VOLTAGE SELECTION

                 Voltage                                J10

                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.

                           SERIAL PORT SELECTION

           Setting                     J18                    J19

       Used and COM 1 or 2     Pins 1 & 2 closed      Pins 1 & 2 closed

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

