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# NIAGARA SMD TECHNOLOGY, INC.
NT944
Processor IBM 6X86/CX M1/AM K5/Pentium
Processor Speed 75/90/100/120/133/150/166/180/200MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 512MB (EDO supported)
Memory
Maximum Video None
Memory
Cache 256/512KB
BIOS Award/Phoenix
Dimensions 330mm x 218mm
I/O Options 32-bit PCI slots (4), floppy drive interface,
IDE interfaces (2), parallel port, PS/2 mouse
port, serial ports (2), serial port, cache
slot, IR connector, USB connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+---------------+------------|
| IDE interface 2 | CN1 | IR connector | J26 |
|--------------------+----------+---------------+------------|
| IDE interface 1 | CN2 | Power LED & | JP27 pins |
| | | keylock | 1 - 5 |
|--------------------+----------+---------------+------------|
| PS/2 mouse port | J2 | Turbo LED | JP27 pins |
| | | | 7 & 17 |
|--------------------+----------+---------------+------------|
| Serial port | J5 | Reset switch | JP27 pins |
| | | | 8 & 18 |
|--------------------+----------+---------------+------------|
| Serial port | J6 | IDE interface | JP27 pins |
| | | LED | 10 & 20 |
|--------------------+----------+---------------+------------|
| Floppy drive | J7 | Speaker | JP27 pins |
| interface | | | 11 - 14 |
|--------------------+----------+---------------+------------|
| Chassis fan power | J9 | 32-bit PCI | PC1 – PC4 |
| | | slots | |
|--------------------+----------+---------------+------------|
| Parallel port | J21 | Cache slot | SL1 |
|--------------------+----------+---------------+------------|
| USB connector | J22 | | |
|------------------------------------------------------------|
| Note: The location of J9 is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | CMOS memory normal operation | JP2 | Open |
|---+---------------------------------+-------+--------------|
| | CMOS memory clear | JP2 | Closed |
|---+---------------------------------+-------+--------------|
| » | Flash BIOS voltage select 5v | JP3 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Flash BIOS voltage select 12v | JP3 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP4 | Closed |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP6 | Closed |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP7 | Closed |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP8 | Closed |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP9 | Unidentified |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 8MB | (2) 512K x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 36 | None |
|------------------+--------------------+--------------------|
| 10MB | (2) 256K x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 12MB | (2) 512K x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 36 | None |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 18MB | (2) 256K x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 20MB | (2) 512K x 36 | (2) 2M 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 |
|------------------+--------------------+--------------------|
| 34MB | (2) 256K x 36 | (2) 4M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|--------------+------------------------+--------------------|
| 36MB | (2) 512K x 36 | (2) 4M 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 |
|--------------+------------------------+--------------------|
| 66MB | (2) 256K x 36 | (2) 8M x 36 |
|--------------+------------------------+--------------------|
| 68MB | (2) 512K x 36 | (2) 8M 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 |
|--------------+------------------------+--------------------|
| 130MB | (2) 256K x 36 | (2) 16M x 36 |
|--------------+------------------------+--------------------|
| 132MB | (2) 512K x 36 | (2) 16M x 36 |
|--------------+------------------------+--------------------|
| 136MB | (2) 16M x 36 | (2) 1M x 36 |
|--------------+------------------------+--------------------|
| 144MB | (2) 16M x 36 | (2) 2M x 36 |
|--------------+------------------------+--------------------|
| 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 |
|--------------+------------------------+--------------------|
| 258MB | (2) 256K x 36 | (2) 32M x 36 |
|--------------+------------------------+--------------------|
| 260MB | (2) 512K x 36 | (2) 32M 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. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | SL1 |
|--------------+--------------------+------------------------|
| 256KB | (2) 32K x 32 | Not installed |
|--------------+--------------------+------------------------|
| 512KB | (2) 32K x 32 | 256KB module installed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP10 | JP11 | JP12 | JP13 |
|------------+-----------+-----------+-----------+-----------|
| 256KB | Open | Open | Closed | Open |
|------------+-----------+-----------+-----------+-----------|
| 512KB (A) | Closed | Closed | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier|SW1/1|SW1/2|SW1/3|SW1/4|SW1/5|
| | speed | | | | | | |
|---------+---------+----------+-----+-----+-----+-----+-----|
| 120MHz | 50MHz | 1.5x | On | On | Off | Off | Off |
|---------+---------+----------+-----+-----+-----+-----+-----|
| 150MHz | 60MHz | 1.5x | On | Off | Off | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CYRIX) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier|SW1/1|SW1/2|SW1/3|SW1/4|SW1/5|
| | speed | | | | | | |
|---------+---------+----------+-----+-----+-----+-----+-----|
| 120MHz | 50MHz | 1.5x | On | On | Off | Off | Off |
|---------+---------+----------+-----+-----+-----+-----+-----|
| 150MHz | 60MHz | 1.5x | On | Off | Off | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier|SW1/1|SW1/2|SW1/3|SW1/4|SW1/5|
| | speed | | | | | | |
|---------+---------+----------+-----+-----+-----+-----+-----|
| 75MHz | 50MHz | 1.5x | On | On | Off | Off | Off |
|---------+---------+----------+-----+-----+-----+-----+-----|
| 90MHz | 60MHz | 1.5x | On | Off | Off | Off | Off |
|---------+---------+----------+-----+-----+-----+-----+-----|
| 100MHz | 66MHz | 1.5x | Off | On | Off | Off | Off |
|---------+---------+----------+-----+-----+-----+-----+-----|
| 120MHz | 60MHz | 2x | On | Off | On | Off | Off |
|---------+---------+----------+-----+-----+-----+-----+-----|
| 133MHz | 66MHz | 2x | Off | On | On | Off | Off |
|---------+---------+----------+-----+-----+-----+-----+-----|
| 150MHz | 60MHz | 2.5x | On | Off | On | On | Off |
|---------+---------+----------+-----+-----+-----+-----+-----|
| 166MHz | 66MHz | 2.5x | Off | On | On | On | Off |
|---------+---------+----------+-----+-----+-----+-----+-----|
| 180MHz | 60MHz | 3x | On | Off | Off | On | Off |
|---------+---------+----------+-----+-----+-----+-----+-----|
| 200MHz | 66MHz | 3x | Off | On | Off | On | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP21 |
|----------------------------+-------------------------------|
| IBM 6X86 | All pins closed |
|----------------------------+-------------------------------|
| IBM M2 | All pins open |
|----------------------------+-------------------------------|
| CX M1 | All pins closed |
|----------------------------+-------------------------------|
| CX M2 | All pins open |
|----------------------------+-------------------------------|
| AM 5K86 | All pins closed |
|----------------------------+-------------------------------|
| AM K5 | All pins open |
|----------------------------+-------------------------------|
| P54C | All pins closed |
|----------------------------+-------------------------------|
| P55C | All pins open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JP5 |
|----------------------------+-------------------------------|
| | 3.3v | Pins 1 & 2 closed |
|---+------------------------+-------------------------------|
| » | 3.45v | Pins 3 & 4 closed |
|---+------------------------+-------------------------------|
| | 3.6v | Pins 5 & 6 closed |
+------------------------------------------------------------+