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# TMC RESEARCH CORPORATION
SI5TT (VER. 1.0)
Device Type Mainboard
Processor CX 6X86L/CX 686MX/AM K5/AM K6/Pentium/Pentium
MMX
Processor Speed 90/100/120/133/150/166/180/200/233/266/300MHz
Chip Set Intel 430TX
Video Chip Set Chips and Technology
Maximum Onboard 128MB (EDO supported)
Memory
Maximum Video 1MB
Memory
Cache 512KB
BIOS Award
Dimensions 203mm x 146mm
I/O Options Ethernet 10BaseT connector, floppy drive
interface, green PC connector, IDE interfaces
(2), parallel port, serial ports (4), VGA
port, IR connector, USB connector, PC/104
connectors (2)
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+------------+-----------------+----------|
| PC/104 connector | CN1 | Serial port 2 | J7 |
|------------------+------------+-----------------+----------|
| PC/104 connector | CN2 | Parallel port | J8 |
|------------------+------------+-----------------+----------|
| Speaker | J1/pins 1 | Serial port 3 | J9 |
| | - 4 | | |
|------------------+------------+-----------------+----------|
| Green PC | J1/pins 6 | Serial port 4 | J10 |
| connector | & 16 | | |
|------------------+------------+-----------------+----------|
| Turbo LED | J1/pins 8 | Keyboard/mouse | J11 |
| | & 18 | connector | |
|------------------+------------+-----------------+----------|
| Reset switch | J1/pins 9 | CPU fan power | J12 |
| | & 19 | | |
|------------------+------------+-----------------+----------|
| IDE interface | J1/pins 10 | USB connector | J14 |
| LED | & 20 | | |
|------------------+------------+-----------------+----------|
| Power LED & | J1/pins 11 | Floppy drive | J15 |
| keylock | - 15 | interface | |
|------------------+------------+-----------------+----------|
| IDE interface 1 | J2 | IR connector | J16 |
|------------------+------------+-----------------+----------|
| IDE interface 2 | J3 | LCD panel | LCD |
| | | connector | |
|------------------+------------+-----------------+----------|
| Ethernet 10BaseT | J4 | Power connector | P1 |
| connector | | | |
|------------------+------------+-----------------+----------|
| Serial port 1 | J5 | Power connector | P2 |
|------------------+------------+-----------------+----------|
| VGA interface | J6 | PCI connector | PCI1 |
|------------------------------------------------------------|
| Note: The location of J1 is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| | DISK address select D0000 | J13 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | DISK address select D8000 | J13 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | CMOS memory normal operation | JP2 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | CMOS memory clear | JP2 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | LCD voltage select 3.3v | JP4 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | LCD voltage select 5v | JP4 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP5 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP6 | Unidentified |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|----------------------------+-------------------------------|
| 8MB | (2) 1M x 36 |
|----------------------------+-------------------------------|
| 16MB | (2) 2M x 36 |
|----------------------------+-------------------------------|
| 32MB | (2) 4M x 36 |
|----------------------------+-------------------------------|
| 64MB | (2) 8M x 36 |
|----------------------------+-------------------------------|
| 128MB | (2) 16M x 36 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. |
+------------------------------------------------------------+
+--------------------------------------------------+
| CACHE CONFIGURATION |
|--------------------------------------------------|
| Note: The location of the cache is unidentified. |
+--------------------------------------------------+
+---------------------------------------------------------+
| VIDEO MEMORY CONFIGURATION |
|---------------------------------------------------------|
| Note: The location of the video memory is unidentified. |
+---------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86L) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier|JP1 |SW1/1|SW1/2|SW1/3|SW1/4|
| | speed | | | | | | |
|---------+----------+----------+----+-----+-----+-----+-----|
| 150MHz | 60MHz | 2x |Open| On | On | On | Off |
|---------+----------+----------+----+-----+-----+-----+-----|
| 166MHz | 66MHz | 2x |Open| Off | Off | On | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86MX) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier| JP1 |SW1/1|SW1/2|SW1/3|SW1/4|
| | speed | | | | | | |
|---------+--------+----------+------+-----+-----+-----+-----|
| 166MHz | 60MHz | 2.5x | Open | On | On | On | On |
|---------+--------+----------+------+-----+-----+-----+-----|
| 200MHz | 66MHz | 2.5x | Open | Off | Off | On | On |
|---------+--------+----------+------+-----+-----+-----+-----|
| 200MHz | 75MHz | 2x |Closed| Off | Off | On | Off |
|---------+--------+----------+------+-----+-----+-----+-----|
| 233MHz | 66MHz | 3x | Open | Off | Off | Off | On |
|---------+--------+----------+------+-----+-----+-----+-----|
| 233MHz | 75MHz | 2.5x |Closed| Off | Off | On | On |
|---------+--------+----------+------+-----+-----+-----+-----|
| 300MHz | 66MHz | 3.5x | Open | Off | Off | Off | Off |
|---------+--------+----------+------+-----+-----+-----+-----|
| 300MHz | 75MHz | 3x |Closed| Off | Off | Off | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IDT C6) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier|JP1 |SW1/1|SW1/2|SW1/3|SW1/4|
| | speed | | | | | | |
|---------+----------+----------+----+-----+-----+-----+-----|
| 180MHz | 60MHz | 3x |Open| On | On | Off | On |
|---------+----------+----------+----+-----+-----+-----+-----|
| 200MHz | 66MHz | 3x |Open| Off | Off | Off | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier|JP1 |SW1/1|SW1/2|SW1/3|SW1/4|
| | speed | | | | | | |
|---------+----------+----------+----+-----+-----+-----+-----|
| 100MHz | 66MHz | 1.5x |Open| Off | Off | Off | Off |
|---------+----------+----------+----+-----+-----+-----+-----|
| 133MHz | 66MHz | 1.5x |Open| Off | Off | On | Off |
|---------+----------+----------+----+-----+-----+-----+-----|
| 166MHz | 66MHz | 1.75x |Open| Off | Off | On | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier| JP1 |SW1/1|SW1/2|SW1/3|SW1/4|
| | speed | | | | | | |
|---------+--------+----------+------+-----+-----+-----+-----|
| 166MHz | 66MHz | 1.75x | Open | Off | Off | On | On |
|---------+--------+----------+------+-----+-----+-----+-----|
| 200MHz | 66MHz | 3x | Open | Off | Off | Off | On |
|---------+--------+----------+------+-----+-----+-----+-----|
| 233MHz | 66MHz | 3.5x | Open | Off | Off | Off | Off |
|---------+--------+----------+------+-----+-----+-----+-----|
| 266MHz | 66MHz | 4x |Closed| Off | Off | On | Off |
|---------+--------+----------+------+-----+-----+-----+-----|
| 300MHz | 66MHz | 4.5x |Closed| Off | Off | On | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier|JP1 |SW1/1|SW1/2|SW1/3|SW1/4|
| | speed | | | | | | |
|---------+----------+----------+----+-----+-----+-----+-----|
| 90MHz | 60MHz | 1.5x |Open| On | On | Off | Off |
|---------+----------+----------+----+-----+-----+-----+-----|
| 100MHz | 66MHz | 1.5x |Open| Off | Off | Off | Off |
|---------+----------+----------+----+-----+-----+-----+-----|
| 120MHz | 60MHz | 2x |Open| On | On | On | Off |
|---------+----------+----------+----+-----+-----+-----+-----|
| 133MHz | 66MHz | 2x |Open| Off | Off | On | Off |
|---------+----------+----------+----+-----+-----+-----+-----|
| 150MHz | 60MHz | 2.5x |Open| On | On | On | On |
|---------+----------+----------+----+-----+-----+-----+-----|
| 166MHz | 66MHz | 2.5x |Open| Off | Off | On | On |
|---------+----------+----------+----+-----+-----+-----+-----|
| 200MHz | 66MHz | 3x |Open| Off | Off | Off | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL MMX) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier|JP1 |SW1/1|SW1/2|SW1/3|SW1/4|
| | speed | | | | | | |
|---------+----------+----------+----+-----+-----+-----+-----|
| 166MHz | 66MHz | 2.5x |Open| Off | Off | On | On |
|---------+----------+----------+----+-----+-----+-----+-----|
| 200MHz | 66MHz | 3x |Open| Off | Off | Off | On |
|---------+----------+----------+----+-----+-----+-----+-----|
| 233MHz | 66MHz | 3.5x |Open| Off | Off | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (SINGLE) |
|------------------------------------------------------------|
| Voltage | SW2/1 | SW2/2 | SW2/3 | SW2/4 |
|------------+-----------+-----------+-----------+-----------|
| 3.5v | On | On | On | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (DUAL) |
|------------------------------------------------------------|
| Voltage | V core | SW2/1 | SW2/2 | SW2/3 | SW2/4 |
|----------+----------+---------+---------+---------+--------|
| 3.3v | 2.0v | Off | Off | Off | Off |
|----------+----------+---------+---------+---------+--------|
| 3.3v | 2.1v | On | Off | Off | Off |
|----------+----------+---------+---------+---------+--------|
| 3.3v | 2.2v | Off | On | Off | Off |
|----------+----------+---------+---------+---------+--------|
| 3.3v | 2.3v | On | On | Off | Off |
|----------+----------+---------+---------+---------+--------|
| 3.3v | 2.4v | Off | Off | On | Off |
|----------+----------+---------+---------+---------+--------|
| 3.3v | 2.5v | On | Off | On | Off |
|----------+----------+---------+---------+---------+--------|
| 3.3v | 2.6v | Off | On | On | Off |
|----------+----------+---------+---------+---------+--------|
| 3.3v | 2.7v | On | On | On | Off |
|----------+----------+---------+---------+---------+--------|
| 3.3v | 2.8v | Off | Off | Off | On |
|----------+----------+---------+---------+---------+--------|
| 3.3v | 2.9v | On | Off | Off | On |
|----------+----------+---------+---------+---------+--------|
| 3.3v | 3.0v | Off | On | Off | On |
|----------+----------+---------+---------+---------+--------|
| 3.3v | 3.2v | Off | Off | On | On |
|----------+----------+---------+---------+---------+--------|
| 3.3v | 3.5v | On | On | On | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 SELECTION |
|------------------------------------------------------------|
| Setting | JP3 |
|---------+--------------------------------------------------|
| RS-232 | Open |
|---------+--------------------------------------------------|
| RS-422 | Pins 1 & 2, 3 & 4, 5 & 6, 7 & 8, 11 & 12, 15 & |
| | 16, 17 & 18, 19 & 20, 23 & 24 closed |
|---------+--------------------------------------------------|
| RS-485 | Pins 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & |
| | 12, 13 & 14, 15 & 16, 17 & 18, 19 & 20, 21 & 22, |
| | 23 & 24 closed |
+------------------------------------------------------------+