NIAGARA SMD TECHNOLOGY, INC.

NT924

Processor            Pentium
Processor Speed      75/90/100/120/133/150/166MHz
Chip Set             Intel
Maximum Onboard      128MB (EDO DRAM supported)
Memory
Cache                256/512KB
BIOS                 Award/Phoenix
Dimensions           330mm x 218mm
I/O Options          32-bit PCI slots (4), floppy drive interface, green
                     PC connector, IDE interfaces (2), parallel port, PS/2
                     mouse interface, serial ports (2), VRM connector,
                     cache slot
NPU Options          None

[Image]

                                CONNECTIONS

        Function            Label            Function            Label

  IDE interface 1            IDE1      PS/2 mouse interface       J10

  IDE interface 2            IDE2      Floppy drive               J11
                                       interface

  Power LED & keylock         J1       Serial port 1              J13

  Speaker                     J2       Serial port 2              J14

  Reset switch                J3       Parallel port              J15

  Turbo switch                J4       IDE interface LED          JP5

  Turbo LED                   J5       32-bit PCI slots         PC1 - PC4

  Green PC LED                J6       VRM connector              VRM

  Chassis fan power           J7       Cache slot                 SL1

                        USER CONFIGURABLE SETTINGS

                 Setting                      Label          Position

  »   On board I/O enabled                     J24             Open

      On board I/O disabled                    J24            Closed

  »   IDE interface 1 IRQ select IRQ14         JP2          Pins 1 & 2
                                                              closed

      IDE interface 1 IRQ select none          JP2          Pins 2 & 3
                                                              closed

  »   IDE interface 2 IRQ select IRQ15         JP3          Pins 1 & 2
                                                              closed

      IDE interface 2 IRQ select none          JP3          Pins 2 & 3
                                                              closed

  »   Flash BIOS voltage select 5v             JP6          Pins 1 & 2
                                                              closed

      Flash BIOS voltage select 12v            JP6          Pins 2 & 3
                                                              closed

  »   Jumper information unavailable          JP13             N/A

  »   Jumper information unavailable          JP14             N/A

  »   Keyboard clock speed select 8MHz        JP15          Pins 1 & 2
                                                              closed

      Keyboard clock speed select 12MHz       JP15          Pins 2 & 3
                                                              closed

                    DRAM

     Size          Bank 0        Bank 1

      8MB        (2) 1M x 32      None

     16MB        (2) 2M x 32      None

     16MB        (2) 1M x 32   (2) 1M x 32

     24MB        (2) 2M x 32   (2) 1M x 32

     24MB        (2) 1M x 32   (2) 2M x 32

     32MB        (2) 4M x 32      None

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

     40MB        (2) 4M x 32   (2) 1M x 32

     40MB        (2) 1M x 32   (2) 4M x 32

     48MB        (2) 4M x 32   (2) 2M x 32

     48MB        (2) 2M x 32   (2) 4M x 32

     64MB        (2) 8M x 32      None

     64MB        (2) 4M x 32   (2) 4M x 32

                           DRAM (CON’T)

         Size                 Bank 0                Bank 1

         72MB              (2) 8M x 32            (2) 1M x 32

         72MB              (2) 1M x 32            (2) 8M x 32

         80MB              (2) 8M x 32            (2) 2M x 32

         80MB              (2) 2M x 32            (2) 8M x 32

         96MB              (2) 8M x 32            (2) 4M x 32

         96MB              (2) 4M x 32            (2) 8M x 32

        128MB              (2) 8M x 32            (2) 8M x 32

  Note: Board accepts EDO memory. Board also accepts x 36 SIMMs.

                                CACHE SIZE

       Size              Bank 0              TAG               SL1

     256KB (A)        (8) 32K x 8      (1) 8K/16K x 8     Not installed

     256KB (B)            None              None            Installed

     512KB (A)        (8) 64K x 8      (1) 16k/32K x 8    Not installed

     512KB (B)            None              None            Installed

               CACHE JUMPER

        Size                 JP10

     256KB (A/B)      Pins 1 & 2 closed

     512KB (A/B)      Pins 2 & 3 closed

                            CPU SPEED

  Setting      J25        JP7        JP9       JPS1       JPS2

   75MHz      1 & 2      2 & 3      2 & 3      Open       Open

   90MHz      2 & 3      2 & 3      2 & 3     Closed      Open

  100MHz      2 & 3      2 & 3      2 & 3     Closed     Closed

  120MHz      2 & 3      1 & 2      2 & 3     Closed      Open

  133MHz      2 & 3      1 & 2      2 & 3     Closed     Closed

  150MHz      2 & 3      1 & 2      1 & 2     Closed      Open

  166MHz      2 & 3      1 & 2      1 & 2     Closed     Closed

  Note: Pins designated should be in the closed position.

                 CPU TYPE

       Setting               JP1

        P54C          Pins 1 & 2 closed

        P55C          Pins 2 & 3 closed