
NIAGARA SMD TECHNOLOGY, INC.

NT928SPP

Processor         Pentium Pro
Processor Speed   150/166/180/200/210/233/240/266/270/300MHz
Chip Set          Intel
Video Chip Set    None
Maximum Onboard   512MB (EDO supported)
Memory
Maximum Video     None
Memory
Cache             256/512KB (located on Pentium Pro CPU)
BIOS              AMI/Award/Phoenix
Dimensions        305mm x 244mm
I/O Options       32-bit PCI slots (4), floppy drive interface, green PC
                  connector, IDE interfaces (2), Ultra-SCSI Wide interface,
                  SCSI interface, parallel port, PS/2 mouse port, serial
                  ports (2), ATX power connector, USB connector, IR
                  connector
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  ATX power                ATX         Speaker             J31 pins 1 - 4
  connector

  Serial port              CN1         Power LED &          J31 pins 6 -
                                       keylock                   10

  Parallel port            CN2         Reset switch         J31 pins 11 &
                                                                 12

  PS/2 mouse port          CN3         SCSI LED             J31 pins 13 &
                                                                 14

  Serial port              CN4         IDE interface LED    J31 pins 15 &
                                                                 16

  Floppy drive             CN5         Green PC connector   J31 pins 17 &
  interface                                                      18

  IDE interface            CN6         Turbo LED            J31 pins 19 &
                                                                 20

  IDE interface            CN7         Power on/off             JP7
                                       switch

  SCSI interface           CN8         Remote power             JP8
                                       switch

  Ultra-SCSI Wide          CN9         32-bit PCI slots      PC1  PC4
  interface

  Note: The location of the IR &USB connectors are unidentified.

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     Factory configured - do not           J32          Unidentified
      alter

      Wide SCSI enabled                     J33             Closed

      Wide SCSI disabled                    J33              Open

     Auto power enabled                    JP5             Closed

      Auto power disabled                   JP5              Open

     Factory configured - do not           JP6          Unidentified
      alter

      SCSI chip enabled                    JP11        Pins 1 & 2 closed

      SCSI chip disabled                   JP11        Pins 2 & 3 closed

     Factory configured - do not          JP14          Unidentified
      alter

     Factory configured - do not          JP15          Unidentified
      alter

              DRAM 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

      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

     128MB        (2) 16M x 36       None

     136MB        (2) 16M x 36   (2) 1M x 36

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

                        DRAM CONFIGURATION (CONT)

          Size                    Bank 0                   Bank 1

          160MB                (2) 16M x 36             (2) 4M x 36

          192MB                (2) 16M x 36             (2) 8M x 36

          256MB                (2) 32M x 36                 None

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

          264MB                (2) 32M x 36             (2) 1M x 36

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

          288MB                (2) 32M x 36             (2) 4M x 36

          320MB                (2) 32M x 36             (2) 8M x 36

          384MB                (2) 32M x 36             (2) 16M x 36

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

            Note: Board accepts EDO memory. Board also accepts x 32
            SIMMs. The location of banks 0 & 1 are unidentified.

                      CACHE CONFIGURATION

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

             CPU SPEED SELECTION

         Speed                  JP17

        150MHz           Pins 1 & 2 closed

        166MHz           Pins 3 & 4 closed

        180MHz           Pins 5 & 6 closed

        200MHz           Pins 7 & 8 closed

        210MHz           Pins 9 & 10 closed

        233MHz          Pins 11 & 12 closed

        240MHz          Pins 13 & 14 closed

        266MHz          Pins 15 & 16 closed

        270MHz          Pins 17 & 18 closed

        300MHz          Pins 19 & 20 closed

                    VOLTAGE SOURCE SELECTION

            Setting                           JP1

  3.3v from on board regulator     Pins 3 & 5, 4 & 6 closed

   3.3v from ATX power supply      Pins 1 & 3, 2 & 4 closed

                     SCSI TERMINATION SELECTION (LOW)

                 Setting                                JP16

        Low byte controlled by BIOS             Pins 2 & 3 closed

            Low byte terminator on               Pins 1 & 2 closed

           Low byte terminator off                      Open

                     SCSI TERMINATION SELECTION (HIGH)

                 Setting                                JP18

          High byte terminator on               Pins 1 & 2 closed

           High byte terminator off                     Open

         High byte controlled by BIOS            Pins 2 & 3 closed

