
NIAGARA SMD TECHNOLOGY, INC.

NT924 REV-PB CACHE

Processor          CX M1/AM K5/IBM/SGS/Thompson/Pentium
Processor Speed    75/90/100/120/133/150/166/180/200MHz
Chip Set           Intel
Maximum Onboard    128MB
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), cache slot
NPU Options        None

[Image]

                                CONNECTIONS

        Function            Label            Function            Label

  IDE interface 1            IDE1      IDE interface LED          J13

  IDE interface 2            IDE2      Green PC LED               J14

  PS/2 mouse interface        J3       Turbo LED                  J15

  Serial port 1               J4       Reset switch               J16

  Serial port 2               J6       Speaker                    J17

  Floppy drive interface      J7       Power LED & keylock        J18

  Parallel port               J8       32-bit PCI slots         PC1 - PC4

  chassis fan power           J9       Cache slot                 SL1

  Green PC connector         J12

                        USER CONFIGURABLE SETTINGS

                 Setting                      Label          Position

      Jumper information unavailable           JP2             N/A

      Keyboard clock select depends on         JP4          Pins 1 & 2
      ISA clock                                               closed

      Keyboard clock select set at             JP4          Pins 2 & 3
      12MHz                                                   closed

      Jumper information unavailable           JP6             N/A

     Flash BIOS voltage select 5v             JP7          Pins 1 & 2
                                                              closed

      Flash BIOS voltage select 12v            JP7          Pins 2 & 3
                                                              closed

                       DRAM

      Size            Bank 0           Bank 1

       8MB         (2) 1M x 32          None

       8MB        (2) 512K x 32    (2) 512K x 32

      10MB         (2) 1M x 32     (2) 256K x 32

      10MB        (2) 256K x 32     (2) 1M x 32

      12MB         (2) 1M x 32     (2) 512K x 32

      12MB        (2) 512K x 32     (2) 1M x 32

      16MB         (2) 2M x 32          None

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

      18MB         (2) 2M x 32     (2) 256K x 32

      18MB        (2) 256K x 32     (2) 2M x 32

      20MB         (2) 2M x 32     (2) 512K x 32

      20MB        (2) 512K x 32     (2) 2M 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

      34MB         (2) 4M x 32     (2) 256K x 32

      34MB        (2) 256K x 32     (2) 4M x 32

      36MB         (2) 4M x 32     (2) 512K x 32

      36MB        (2) 512K x 32     (2) 4M 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

      66MB         (2) 8M x 32     (2) 256K x 32

      66MB        (2) 256K x 32     (2) 8M x 32

      68MB         (2) 8M x 32     (2) 512K x 32

      68MB        (2) 512K x 32     (2) 8M x 32

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

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

                               DRAM

         Size                 Bank 0                Bank 1

         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       Bank 1          TAG              SL1

  256KB (A)      256KB         None       (1) 8K/16K x    Not installed
                                               8

  256KB (B)       None         None          None           Installed

  512KB (A)      256KB        256KB      (1) 16K/32K x    Not installed
                                               8

  512KB (B)       None         None          None           Installed

  Note: The orientation of banks 0 & 1 is unidentified.

                         CACHE JUMPER

        Size                 JP10                 JP11

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

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

                                 CPU TYPE

               Setting                                JP8

                CX M1                          Pins 1 & 2 closed

                AM K5                          Pins 1 & 2 closed

                 P54C                          Pins 1 & 2 closed

  P55C (reserved for future upgrade)           Pins 2 & 3 closed

                        CPU SPEED (INTEL)

  Setting      JP3       JP12       JP13       JPS1       JPS2

   75MHz      1 & 2      2 & 3      2 & 3     Closed     Closed

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

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

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

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

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

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

  180MHz      2 & 3      1 & 2      2 & 3     Closed      Open

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

  Note: Pins designated should be in the closed position.

                CPU SPEED(CYRIX/IBM/SGS/THOMPSON)

  Setting      JP3       JP12       JP13       JPS1       JPS2

  100MHz      1 & 2      2 & 3      1 & 2     Closed     Closed

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

  133MHz      1 & 2      2 & 3      1 & 2      Open       Open

  Note: Pins designated should be in the closed position.

