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# BCM ADVANCED RESEARCH, INC.
SQ591
Processor 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 128MB (EDO supported)
Memory
Maximum Video None
Memory
Cache 256/512KB
BIOS Award
Dimensions 254mm 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), IR connector, USB connectors (2)
NPU Options None
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+-----------+-----------------+-----------|
| Power LED & | J1 pins 1 | IDE interface 1 | J8 |
| keylock | - 5 | | |
|------------------+-----------+-----------------+-----------|
| Green PC LED | J1 pins 7 | USB connector 2 | J10 |
| | & 8 | | |
|------------------+-----------+-----------------+-----------|
| IDE interface | J1 pins | USB connector 1 | J11 |
| LED | 10 - 13 | | |
|------------------+-----------+-----------------+-----------|
| Speaker | J1 pins | Parallel port | J12 |
| | 14 - 17 | | |
|------------------+-----------+-----------------+-----------|
| Green PC | J1 pins | IDE interface 2 | J13 |
| connector | 19 & 20 | | |
|------------------+-----------+-----------------+-----------|
| Turbo LED | J1 pins | Serial port 1 | J18 |
| | 22 & 23 | | |
|------------------+-----------+-----------------+-----------|
| Reset switch | J1 pins | Serial port 2 | J19 |
| | 25 & 26 | | |
|------------------+-----------+-----------------+-----------|
| PS/2 mouse | J2 | IR connector | J21 |
| interface | | | |
|------------------+-----------+-----------------+-----------|
| Floppy drive | J7 | 32-bit PCI | PC1 – PC4 |
| interface | | slots | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+---------+------------|
| » | CMOS memory normal operation | JP3 | Open |
|---+---------------------------------+---------+------------|
| | CMOS memory clear | JP3 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. Banks are interchangeable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|----------------------------+-------------------------------|
| 256KB | (2) 32K x 32 |
|----------------------------+-------------------------------|
| 512KB | (2) 64K x 32 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CYRIX) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier| JP4 | JP6 | JP7 | JP8 |
|---------+-----------+----------+-------+-----+------+------|
| 120MHz | 50MHz | 2x |Closed |Open |Closed|Closed|
|---------+-----------+----------+-------+-----+------+------|
| 133MHz | 60MHz | 2x |Closed |Open | Open | Open |
|---------+-----------+----------+-------+-----+------+------|
| 150MHz | 66MHz | 2x |Closed |Open |Closed| Open |
|---------+-----------+----------+-------+-----+------+------|
| 166MHz | 60MHz | 2x |Closed |Open | Open |Closed|
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AMD) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier| JP4 | JP6 | JP7 | JP8 |
|---------+-----------+----------+------+------+------+------|
| 75MHz | 50MHz | 1.5x | Open | Open |Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 90MHz | 60MHz | 1.5x | Open | Open |Closed| Open |
|---------+-----------+----------+------+------+------+------|
| 100MHz | 66MHz | 1.5x | Open | Open | Open |Closed|
|---------+-----------+----------+------+------+------+------|
| 120MHz | 60MHz | 2x |Closed| Open |Closed| Open |
|---------+-----------+----------+------+------+------+------|
| 133MHz | 66MHz | 2x |Closed| Open | Open |Closed|
|---------+-----------+----------+------+------+------+------|
| 150MHz | 60MHz | 2.5x |Closed|Closed|Closed| Open |
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2.5x |Closed|Closed| Open |Closed|
|---------+-----------+----------+------+------+------+------|
| 180MHz | 60MHz | 3x | Open |Closed|Closed| Open |
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 3x | Open |Closed| Open |Closed|
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier| JP4 | JP6 | JP7 | JP8 |
|---------+-----------+----------+------+------+------+------|
| 75MHz | 50MHz | 1.5x | Open | Open |Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 90MHz | 60MHz | 1.5x | Open | Open |Closed| Open |
|---------+-----------+----------+------+------+------+------|
| 100MHz | 66MHz | 1.5x | Open | Open | Open |Closed|
|---------+-----------+----------+------+------+------+------|
| 120MHz | 60MHz | 2x |Closed| Open |Closed| Open |
|---------+-----------+----------+------+------+------+------|
| 133MHz | 66MHz | 2x |Closed| Open | Open |Closed|
|---------+-----------+----------+------+------+------+------|
| 150MHz | 60MHz | 2.5x |Closed|Closed|Closed| Open |
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2.5x |Closed|Closed| Open |Closed|
|---------+-----------+----------+------+------+------+------|
| 180MHz | 60MHz | 3x | Open |Closed|Closed| Open |
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 3x | Open |Closed| Open |Closed|
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (CYRIX) |
|------------------------------------------------------------|
| CPU type | Voltage | JP1 | JP2 | JP5 |
|-------------+-------------+--------+--------+--------------|
| STD | 3.15v – | Open | Closed | 1 & 2, 3 & |
| | 3.6v | | | 4, 5 & 6 |
|-------------+-------------+--------+--------+--------------|
| VRE | 3.4v – 3.6v | Open | Open | 1 & 2, 3 & |
| | | | | 4, 5 & 6 |
|-------------+-------------+--------+--------+--------------|
| N/A (future | 2.5v | Closed | Closed | Open |
| use) | | | | |
|-------------+-------------+--------+--------+--------------|
| N/A (future | 2.8v | Open | Closed | Open |
| use) | | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (AMD) |
|------------------------------------------------------------|
| CPU type | Voltage | JP1 | JP2 | JP5 |
|-------------+--------------+------+--------+---------------|
| AM K5 (STD) | 3.155v – | Open | Closed | 1 & 2, 3 & 4, |
| | 3.6v | | | 5 & 6 |
|-------------+--------------+------+--------+---------------|
| AM K5 (VRE) | 3.4v – 3.6v | Open | Open | 1 & 2, 3 & 4, |
| | | | | 5 & 6 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (INTEL, SINGLE) |
|------------------------------------------------------------|
| CPU type | Voltage | JP1 | JP2 | JP5 |
|------------+---------------+------+--------+---------------|
| P54C (STD) | 3.155v – 3.6v | Open | Closed | 1 & 2, 3 & 4, |
| | | | | 5 & 6 |
|------------+---------------+------+--------+---------------|
| P54C (VRE) | 3.4v – 3.6v | Open | Open | 1 & 2, 3 & 4, |
| | | | | 5 & 6 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (INTEL, DUAL) |
|------------------------------------------------------------|
| CPU type | Voltage | V core | JP1 | JP2 | JP5 |
|----------+----------+----------+---------+---------+-------|
| P55C | 3.38v | 2.5v | Closed | Closed | Open |
|----------+----------+----------+---------+---------+-------|
| P55C | 3.38v | 2.8v | Open | Closed | Open |
+------------------------------------------------------------+