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# SHUTTLE COMPUTER INTERNATIONAL, INC.
HOT-555
Processor CX M1/AM K5/Pentium
Processor Speed 66/75/90/100/120/125/133/150/166/180/200MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 128MB (EDO supported)
Memory
Maximum Video None
Memory
Cache 256KB
BIOS Award
Dimensions 230mm x 220mm
I/O Options 32-bit PCI slots (3), floppy drive interface,
green PC connector, IDE interfaces (2),
parallel port, PS/2 mouse interface, serial
ports (2), IR connector, USB connector (2)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Floppy drive | CN1 | Power LED & | J14 |
| interface | | keylock | |
|-------------------+----------+------------------+----------|
| Serial port 1 | CN2 | PS/2 mouse | J99 |
| | | interface | |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN3 | Chassis fan | JP1 |
| | | power | |
|-------------------+----------+------------------+----------|
| Parallel port | CN4 | IR connector | JP3 |
|-------------------+----------+------------------+----------|
| IDE interface 1 | J6 | Reset switch | JP12 |
|-------------------+----------+------------------+----------|
| IDE interface 2 | J7 | Green PC | JP15 |
| | | connector | |
|-------------------+----------+------------------+----------|
| USB connector | J10 | Green PC LED | JP17 |
|-------------------+----------+------------------+----------|
| USB connector | J11 | IDE interface | JP22 |
| | | LED | |
|-------------------+----------+------------------+----------|
| Speaker | J12 | 32-bit PCI slots | PC1 - |
| | | | PC4 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|------------------------------------+-------+---------------|
| | Monitor type select monochrome | JP7 | Open |
|---+--------------------------------+-------+---------------|
| | Monitor type select EGA/CGA | JP7 | Closed |
|---+--------------------------------+-------+---------------|
| | Monitor type select VGA | JP7 | Any setting |
|---+--------------------------------+-------+---------------|
| » | Password normal operation | JP9 | Open |
|---+--------------------------------+-------+---------------|
| | Password clear | JP9 | Closed |
|---+--------------------------------+-------+---------------|
| | Flash BIOS voltage select 12v | JP18 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| | Flash BIOS voltage select 5v | JP18 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| » | CMOS memory normal operation | JP21 | Open |
|---+--------------------------------+-------+---------------|
| | CMOS memory clear | JP21 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 8MB | (2) 1M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 8MB | None | None | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 16MB | None | None | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 16MB | (2) 2M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 32MB | (2) 4M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 64MB | (2) 8M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 | None |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. Banks 0 & 1 are |
| interchangeable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 256KB | (2) 32K x 32 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CYRIX) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier|JP23 |JP24 | JP27 | JP28 |
|---------+-----------+----------+-----+-----+-------+-------|
| 120MHz | 50MHz | 2x |Open |Open |Closed |Closed |
|---------+-----------+----------+-----+-----+-------+-------|
| 133MHz | 55MHz | 2x |Open |Open | Open | Open |
|---------+-----------+----------+-----+-----+-------+-------|
| 150MHz | 60MHz | 2x |Open |Open |Closed | Open |
|---------+-----------+----------+-----+-----+-------+-------|
| 166MHz | 66MHz | 2x |Open |Open | Open |Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AMD) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier| JP23 |JP24 | JP27 | JP28 |
|---------+-----------+----------+-------+-----+------+------|
| 66MHz | 50MHz | 1 |Closed |Open | Open |Closed|
|---------+-----------+----------+-------+-----+------+------|
| 75MHz | 60MHz | 1.5x | Open |Open |Closed|Closed|
|---------+-----------+----------+-------+-----+------+------|
| 90MHz | 66MHz | 1.5x | Open |Open |Closed| Open |
|---------+-----------+----------+-------+-----+------+------|
| 100MHz | 60MHz | 1.5x | Open |Open | Open |Closed|
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier| JP23 | JP24 | JP27 | JP28 |
|---------+-----------+----------+------+------+------+------|
| 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 |
|---------+-----------+----------+------+------+------+------|
| 125MHz | 50MHz | 2.5x |Closed|Closed|Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 133MHz | 66MHz | 2x |Closed| Open | Open |Closed|
|---------+-----------+----------+------+------+------+------|
| 150MHz | 60MHz | 2.5x |Closed|Closed|Closed| Open |
|---------+-----------+----------+------+------+------+------|
| 150MHz | 50MHz | 3x | Open |Closed|Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 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 (SINGLE) |
|------------------------------------------------------------|
| Voltage(VIO = | JP4 | JP10 | JP13 | JP36 |
| VCORE) | | | | |
|------------------+------------+------+--------+------------|
| 3.3v | Pins 5 & 6 | Open | Closed | Pins 1 & 2 |
| | closed | | | closed |
|------------------+------------+------+--------+------------|
| 3.45v | Pins 3 & 4 | Open | Closed | Pins 1 & 2 |
| | closed | | | closed |
|------------------+------------+------+--------+------------|
| 3.6v | Pins 1 & 2 | Open | Closed | Pins 1 & 2 |
| | closed | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (DUAL) |
|------------------------------------------------------------|
| Voltage (VIO) | JP4 | JP13 |
|--------------------+--------------------+------------------|
| 3.3v | Pins 5 & 6 closed | Open |
|--------------------+--------------------+------------------|
| 3.45v | Pins 3 & 4 closed | Open |
|--------------------+--------------------+------------------|
| 3.6v | Pins 1 & 2 closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (DUAL) |
|------------------------------------------------------------|
| Voltage (VCORE) | JP10 | JP36 |
|-----------------+-------------------+----------------------|
| 2.5v | Open | Pins 3 & 4, 5 & 6 |
| | | closed |
|-----------------+-------------------+----------------------|
| 2.6v | Open | Pins 3 & 4, 7 & 8 |
| | | closed |
|-----------------+-------------------+----------------------|
| 2.7v | Pins 1 & 2 closed | Pins 3 & 4 closed |
|-----------------+-------------------+----------------------|
| 2.8v | Pins 3 & 4 closed | Pins 3 & 4 closed |
|-----------------+-------------------+----------------------|
| 2.9v | Pins 5 & 6 closed | Pins 3 & 4 closed |
|-----------------+-------------------+----------------------|
| 3v | Pins 7 & 8 closed | Pins 3 & 4 closed |
+------------------------------------------------------------+