TEXT View Source
# NIAGARA SMD TECHNOLOGY, INC.
NT924 (REV. 2)
Processor AM K5/CX M1/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, IR connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| 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 | J7 | Power LED & | J18 |
| interface | | keylock | |
|----------------------+-------+--------------------+--------|
| Parallel port | J8 | IR connector | JP2 |
|----------------------+-------+--------------------+--------|
| Chassis fan power | J9 | 32-bit PCI slots | PC1 - |
| | | | PC4 |
|----------------------+-------+--------------------+--------|
| Green PC connector | J12 | Cache slot | SL1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|---------------------------------------+-------+------------|
| | Keyboard clock select depends on | JP4 | Pins 1 & 2 |
| | ISA clock | | closed |
|---+-----------------------------------+-------+------------|
| | Keyboard clock select set at | JP4 | Pins 2 & 3 |
| | 12MHz | | closed |
|---+-----------------------------------+-------+------------|
| | BIOS type select normal operation | JP6 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | BIOS type select flash mode | JP6 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| ยป | Flash BIOS voltage select 5v | JP7 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Flash BIOS voltage select 12v | JP7 | Pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| 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 CONFIGURATION |
|------------------------------------------------------------|
| 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. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG | SL1 |
|-------+---------+---------+-----------+--------------------|
| 256KB | (2) 32K | None | (1) | Not installed |
| (A) | x 32 | | 8K/16K x | |
| | | | 8 | |
|-------+---------+---------+-----------+--------------------|
| 256KB | None | None | None | 256KB module |
| (B) | | | | installed |
|-------+---------+---------+-----------+--------------------|
| 512KB | (2) 32K | (2) 32K | (1) | Not installed |
| (A) | x 32 | x 32 | 16K/32K x | |
| | | | 8 | |
|-------+---------+---------+-----------+--------------------|
| 512KB | None | None | None | 512KB module |
| (B) | | | | installed |
|------------------------------------------------------------|
| Note: The location of banks 0 & 1 are unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| 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 SPEED SELECTION (CYRIX) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier| JP3 |JP12 |JP13 | JPS1 | JPS2 |
| | speed | | | | | | |
|---------+-------+----------+-----+-----+-----+------+------|
| 120MHz | 50MHz | 2x |1 & 2|2 & 3|1 & 2|Closed|Closed|
|---------+-------+----------+-----+-----+-----+------+------|
| 150MHz | 60MHz | 2x |2 & 3|2 & 3|1 & 2|Closed| Open |
|---------+-------+----------+-----+-----+-----+------+------|
| 166MHz | 66MHz | 2x |2 & 3|2 & 3|1 & 2| Open |Closed|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier| JP3 |JP12 |JP13 | JPS1 | JPS2 |
| | speed | | | | | | |
|---------+-------+----------+-----+-----+-----+------+------|
| 75MHz | 50MHz | 1.5x |1 & 2|2 & 3|2 & 3|Closed|Closed|
|---------+-------+----------+-----+-----+-----+------+------|
| 90MHz | 60MHz | 1.5x |2 & 3|2 & 3|2 & 3|Closed| Open |
|---------+-------+----------+-----+-----+-----+------+------|
| 100MHz | 66MHz | 1.5x |2 & 3|2 & 3|2 & 3| Open |Closed|
|---------+-------+----------+-----+-----+-----+------+------|
| 120MHz | 60MHz | 2x |2 & 3|2 & 3|1 & 2|Closed| Open |
|---------+-------+----------+-----+-----+-----+------+------|
| 133MHz | 66MHz | 2x |2 & 3|2 & 3|1 & 2| Open |Closed|
|---------+-------+----------+-----+-----+-----+------+------|
| 150MHz | 60MHz | 2.5x |2 & 3|1 & 2|1 & 2|Closed| Open |
|---------+-------+----------+-----+-----+-----+------+------|
| 166MHz | 66MHz | 2.5x |2 & 3|1 & 2|1 & 2| Open |Closed|
|---------+-------+----------+-----+-----+-----+------+------|
| 180MHz | 60MHz | 3x |2 & 3|1 & 2|2 & 3|Closed| Open |
|---------+-------+----------+-----+-----+-----+------+------|
| 200MHz | 66MHz | 3x |2 & 3|1 & 2|2 & 3| Open |Closed|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Setting | JP8A | JP8B | JP8C | JP8D |
|----------+------------+------------+-----------+-----------|
| CX M1 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & | Pins 1 & |
| | closed | closed | 2 closed | 2 closed |
|----------+------------+------------+-----------+-----------|
| AM K5 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & | Pins 1 & |
| | closed | closed | 2 closed | 2 closed |
|----------+------------+------------+-----------+-----------|
| P54C/CTB | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & | Pins 1 & |
| | closed | closed | 2 closed | 2 closed |
|----------+------------+------------+-----------+-----------|
| P55C | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & | Pins 2 & |
| | closed | closed | 3 closed | 3 closed |
+------------------------------------------------------------+