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# BCM ADVANCED RESEARCH, INC.
SQ588
Processor Pentium
Processor Speed 75/90/100MHz
Chip Set SIS
Video Chip Set None
Maximum Onboard 128MB (EDO supported)
Memory
Maximum Video None
Memory
Cache 256/512/1024KB
BIOS AMI/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)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| PS/2 mouse | J1 | Standby | J18 |
| interface | | connector | |
|-------------------+----------+------------------+----------|
| Green PC | J5 | Turbo LED | J20 |
| connector | | | |
|-------------------+----------+------------------+----------|
| Serial port 2 | J6 | IDE interface | J21 |
| | | LED | |
|-------------------+----------+------------------+----------|
| Floppy drive | J7 | Power LED & | J22 |
| interface | | keylock | |
|-------------------+----------+------------------+----------|
| IDE interface 1 | J8 | Reset switch | J23 |
|-------------------+----------+------------------+----------|
| Serial port 1 | J9 | Speaker | J24 |
|-------------------+----------+------------------+----------|
| Parallel port | J10 | 32-bit PCI slots | PC1 – |
| | | | PC4 |
|-------------------+----------+------------------+----------|
| IDE interface 2 | J11 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | Flash BIOS normal operation | J12 | Open |
|---+---------------------------------+-------+--------------|
| | Flash BIOS programming mode | J12 | Closed |
|---+---------------------------------+-------+--------------|
| » | CMOS memory normal operation | J27 | Open |
|---+---------------------------------+-------+--------------|
| | CMOS memory clear | J27 | Closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | J28 | Open |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | J30 | Open |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP1 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| | IDE interface enabled | JP11 | Open |
|---+---------------------------------+-------+--------------|
| | IDE interface disabled | JP11 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|----------------+---------------------+---------------------|
| 2MB | (2) 256K x 36 | None |
|----------------+---------------------+---------------------|
| 4MB | (2) 512K x 36 | None |
|----------------+---------------------+---------------------|
| 4MB | (2) 256K x 36 | (2) 256K x 36 |
|----------------+---------------------+---------------------|
| 8MB | (2) 1M x 36 | None |
|----------------+---------------------+---------------------|
| 8MB | (2) 512K x 36 | (2) 512K x 36 |
|----------------+---------------------+---------------------|
| 16MB | (2) 2M x 36 | None |
|----------------+---------------------+---------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|----------------+---------------------+---------------------|
| 20MB | (2) 512K x 36 | (2) 2M x 36 |
|----------------+---------------------+---------------------|
| 32MB | (2) 4M x 36 | None |
|----------------+---------------------+---------------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 |
|----------------+---------------------+---------------------|
| 36MB | (2) 512K x 36 | (2) 4M x 36 |
|----------------+---------------------+---------------------|
| 40MB | (2) 1M x 36 | (2) 4M x 36 |
|----------------+---------------------+---------------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 |
|----------------+---------------------+---------------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 |
|----------------+---------------------+---------------------|
| 64MB | (2) 8M x 36 | None |
|----------------+---------------------+---------------------|
| 80MB | (2) 2M x 36 | (2) 8M x 36 |
|----------------+---------------------+---------------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. Board also accepts x 32 |
| SIMMs. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J26 |
|----------------------------+-------------------------------|
| Single sided | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| Double sided | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 256KB | (8) 32K x 8 | (1) 32K x 8 |
|------------------+--------------------+--------------------|
| 512KB | (8) 64K x 8 | (1) 32K x 8 |
|------------------+--------------------+--------------------|
| 1MB | (8) 128K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J16 | J17 |
|------------------+--------------------+--------------------|
| 256KB | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 512KB | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 1MB | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier| J13 | J14 | J15 | J31 |
|---------+-----------+----------+-------+------+------+-----|
| 75MHz | 50MHz | 1.5x | Open | Open |Closed|1 & 2|
|---------+-----------+----------+-------+------+------+-----|
| 90MHz | 60MHz | 1.5x |Closed | Open | Open |1 & 2|
|---------+-----------+----------+-------+------+------+-----|
| 100MHz | 66MHz | 1.5x | Open |Closed| Open |2 & 3|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+