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# 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
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+---------------+------------|
| ATX power | ATX | Speaker | J31 pins 1 |
| connector | | | - 4 |
|--------------------+----------+---------------+------------|
| 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 | J31 pins |
| | | LED | 15 & 16 |
|--------------------+----------+---------------+------------|
| Floppy drive | CN5 | Green PC | J31 pins |
| interface | | connector | 17 & 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 | PC1 – PC4 |
| interface | | slots | |
|------------------------------------------------------------|
| 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 (CON’T) |
|------------------------------------------------------------|
| 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 |
+------------------------------------------------------------+