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# SHUTTLE COMPUTER INTERNATIONAL, INC.
HOT-541
Processor Pentium
Processor 75/90/100/120/133/150/180MHz
Speed
Chip Set Intel
Max. Onboard 128MB
DRAM
Cache 256/512KB
BIOS Award
Dimensions 280mm x 220mm
I/O Options PS/2 mouse port, parallel port, serial ports (2),
32-bit PCI slots (4), green PC connector, floppy
drive interface, IDE interfaces (2), VRM
connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| VRM connector | CN1 | Turbo LED | JP14 |
|-------------------+----------+------------------+----------|
| Floppy drive | J1 | Green PC | JP19 |
| interface | | connector | |
|-------------------+----------+------------------+----------|
| IDE interface 2 | J2 | IDE interface | JP20 |
| | | LED | |
|-------------------+----------+------------------+----------|
| IDE interface 1 | J3 | PS/2 mouse port | JP52 |
|-------------------+----------+------------------+----------|
| Speaker | JP7 | Parallel port | P1 |
|-------------------+----------+------------------+----------|
| Power LED & | JP8 | 32-bit PCI slots | PC1 - |
| keylock | | | PC4 |
|-------------------+----------+------------------+----------|
| Reset switch | JP12 | Serial port 2 | S1 |
|-------------------+----------+------------------+----------|
| Turbo switch | JP13 | Serial port 1 | S2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|-----------------------------------+--------+---------------|
| » | Flash BIOS voltage select 5v | JP9 | pins 1 & 2 |
| | | | closed |
|---+-------------------------------+--------+---------------|
| | Flash BIOS voltage select 12v | JP9 | pins 2 & 3 |
| | | | closed |
|---+-------------------------------+--------+---------------|
| » | CMOS memory normal operation | JP11 | Open |
|---+-------------------------------+--------+---------------|
| | CMOS memory clear | JP11 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 36 | NONE |
|------------------+--------------------+--------------------|
| 8MB | NONE | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 36 | NONE |
|------------------+--------------------+--------------------|
| 16MB | NONE | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 24MB | (2) 1M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 4M x 36 | NONE |
|------------------+--------------------+--------------------|
| 32MB | NONE | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 1M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 2M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 8M x 36 | NONE |
|------------------+--------------------+--------------------|
| 64MB | NONE | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 72MB | (2) 1M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 80MB | (2) 2M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 96MB | (2) 4M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 256KB | (8) 32K x 8 | (1) 32K x 8 |
|------------------+--------------------+--------------------|
| 512KB | (8) 64K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP4 | JP5 | JP6 |
|-------+-----------------+-----------------+----------------|
| None | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|-------+-----------------+-----------------+----------------|
| 256KB | pins 2 & 3 | pins 2 & 3 | pins 1 & 2 |
| | closed | closed | closed |
|-------+-----------------+-----------------+----------------|
| 512KB | pins 1 & 2 | pins 1 & 2 | pins 2 & 3 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| System clock | JP15 | JP16 |
|--------------------+-------------------+-------------------|
| 50MHz | Open | Open |
|--------------------+-------------------+-------------------|
| 60MHz | Closed | Closed |
|--------------------+-------------------+-------------------|
| 66MHz | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU BUS CLOCK CONFIGURATION |
|------------------------------------------------------------|
| System clock | AT bus clock | JP18 |
|-------------------+-------------------+--------------------|
| 50MHz | 6.25MHz | pins 2 & 3 closed |
|-------------------+-------------------+--------------------|
| 50MHz | 8.33MHz | pins 1 & 2 closed |
|-------------------+-------------------+--------------------|
| 60MHz | 7.50MHz | pins 2 & 3 closed |
|-------------------+-------------------+--------------------|
| 60MHz | 10.0MHz | pins 1 & 2 closed |
|-------------------+-------------------+--------------------|
| 66MHz | 8.25MHz | pins 2 & 3 closed |
|-------------------+-------------------+--------------------|
| 66MHz | 11.0MHz | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU BUS RATIO CONFIGURATION |
|------------------------------------------------------------|
| Bus/core ratio | CQA/fraction | JP3 | JP58 |
|----------------+---------------+-------------+-------------|
| 2/3 | 50MHz/75MHz | Open | Open |
|----------------+---------------+-------------+-------------|
| 2/3 | 60MHz/90MHz | Open | Open |
|----------------+---------------+-------------+-------------|
| 2/3 | 66MHz/100MHz | Open | Open |
|----------------+---------------+-------------+-------------|
| 1/2 | 50MHz/100MHz | Closed | Open |
|----------------+---------------+-------------+-------------|
| 1/2 | 60MHz/120MHz | Closed | Open |
|----------------+---------------+-------------+-------------|
| 1/2 | 66MHz/133MHz | Closed | Open |
|----------------+---------------+-------------+-------------|
| 1/3 | 33MHz/100MHz | Open | Closed |
|----------------+---------------+-------------+-------------|
| 1/3 | 50MHz/150MHz | Open | Closed |
|----------------+---------------+-------------+-------------|
| 1/3 | 60MHz/180MHz | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | J8 | J9 | J10 |
|---------------+--------------+--------------+--------------|
| 3.3v | Open | Closed | Open |
|---------------+--------------+--------------+--------------|
| 3.45v | Open | Open | Closed |
|---------------+--------------+--------------+--------------|
| 3.6v | Closed | Open | Open |
+------------------------------------------------------------+