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# LUCKY STAR TECHNOLOGY CO., LTD.
5V-1A (VER. 2.0)
Device Type Mainboard
Processor CX 6X86/CX 6X86L/CX 686MX/CX II/AM K5/AM K6/AM
K6-2/Pentium/
Pentium MMX
Processor 75/90/100/120/133/150/166/180/200/233/266/300MHz
Speed
Chip Set VIA Apollo VPX
Video Chip None
Set
Maximum 512MB (EDO & SDRAM supported)
Onboard
Memory
Maximum Video None
Memory
Cache 256/512KB
BIOS Award
Dimensions 225mm x 220mm
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)
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-----------------+-------------+---------------+------------|
| IR connector | CN1 | Turbo LED | CN10/pins |
| | | | 13 & 14 |
|-----------------+-------------+---------------+------------|
| PS/2 mouse | CN4 | Green PC | CN10/pins |
| interface | | connector | 15 & 16 |
|-----------------+-------------+---------------+------------|
| USB connector | CN5 | IDE interface | CN10/pins |
| | | LED | 17 & 18 |
|-----------------+-------------+---------------+------------|
| USB connector | CN6 | IDE interface | CN12 |
| | | 2 | |
|-----------------+-------------+---------------+------------|
| Parallel port | CN8 | IDE interface | CN13 |
| | | 1 | |
|-----------------+-------------+---------------+------------|
| Floppy drive | CN9 | Serial port 2 | CN14 |
| interface | | | |
|-----------------+-------------+---------------+------------|
| Power LED & | CN10/pins 1 | Serial port 1 | CN15 |
| keylock | – 5 | | |
|-----------------+-------------+---------------+------------|
| Speaker | CN10/pins 6 | 32-bit PCI | PC1 – PC4 |
| | - 10 | slots | |
|-----------------+-------------+---------------+------------|
| Reset switch | CN10/pins | | |
| | 11 & 12 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-----------------------------------+-------+----------------|
| » | CMOS memory normal operation | JBAT | Pins 1 & 2 |
| | | | closed |
|---+-------------------------------+-------+----------------|
| | CMOS memory clear | JBAT | Pins 2 & 3 |
| | | | closed |
|---+-------------------------------+-------+----------------|
| | PCI CLK select synchronous | JCK4 | Pins 1 & 2 |
| | | | closed |
|---+-------------------------------+-------+----------------|
| | PCI CLK select asynchronous | JCK4 | Pins 2 & 3 |
| | | | closed |
|---+-------------------------------+-------+----------------|
| | Flash BIOS voltage select 12v | JROM | Pins 2 & 3 |
| | | | closed |
|---+-------------------------------+-------+----------------|
| | Flash BIOS voltage select 5v | JROM | Pins 1 & 2 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|----------------------------+-------------------------------|
| 256MB | (2) 32M x 36 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 1 | Bank 2 |
|------------------+--------------------+--------------------|
| 16MB | (1) 2M x 64 | None |
|------------------+--------------------+--------------------|
| 32MB | (1) 4M x 64 | None |
|------------------+--------------------+--------------------|
| 32MB | (1) 2M x 64 | (1) 2M x 64 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 1 | Bank 2 |
|------------------+--------------------+--------------------|
| 48MB | (1) 4M x 64 | (1) 2M x 64 |
|------------------+--------------------+--------------------|
| 64MB | (1) 8M x 64 | None |
|------------------+--------------------+--------------------|
| 64MB | (1) 4M x 64 | (1) 4M x 64 |
|------------------+--------------------+--------------------|
| 80MB | (1) 8M x 64 | (1) 2M x 64 |
|------------------+--------------------+--------------------|
| 96MB | (1) 8M x 64 | (1) 4M x 64 |
|------------------+--------------------+--------------------|
| 128MB | (1) 8M x 64 | (1) 8M x 64 |
|------------------------------------------------------------|
| Note: Board accepts SDRAM memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JD1 |
|----------------------------+-------------------------------|
| 3.3v | Pins 5 & 7, 6 & 8 closed |
|----------------------------+-------------------------------|
| 5v | Pins 1 & 3, 2 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Note: The location of the cache is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier| JBFO |JBF1|JBF2|JCK1 |JCK2 |JCK3 |
| speed |speed | | | | | | | |
|-------+------+----------+------+----+----+-----+-----+-----|
|120MHz |50MHz | 2x |Closed|Open|Open|2 & 3|2 & 3|2 & 3|
|-------+------+----------+------+----+----+-----+-----+-----|
|133MHz |55MHz | 2x |Closed|Open|Open|2 & 3|2 & 3|1 & 2|
|-------+------+----------+------+----+----+-----+-----+-----|
|150MHz |60MHz | 2x |Closed|Open|Open|1 & 2|2 & 3|2 & 3|
|-------+------+----------+------+----+----+-----+-----+-----|
|166MHz |66MHz | 2x |Closed|Open|Open|2 & 3|1 & 2|2 & 3|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86L) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier| JBFO |JBF1|JBF2|JCK1 |JCK2 |JCK3 |
| speed |speed | | | | | | | |
|-------+------+----------+------+----+----+-----+-----+-----|
|133MHz |55MHz | 2x |Closed|Open|Open|2 & 3|2 & 3|1 & 2|
|-------+------+----------+------+----+----+-----+-----+-----|
|150MHz |60MHz | 2x |Closed|Open|Open|1 & 2|2 & 3|2 & 3|
|-------+------+----------+------+----+----+-----+-----+-----|
|166MHz |66MHz | 2x |Closed|Open|Open|2 & 3|1 & 2|2 & 3|
|-------+------+----------+------+----+----+-----+-----+-----|
|200MHz |75MHz | 2x |Closed|Open|Open|1 & 2|2 & 3|1 & 2|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86MX) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier| JBFO | JBF1 |JBF2|JCK1 |JCK2|JCK3|
| speed |speed | | | | | | | |
|-------+------+----------+------+------+----+-----+----+----|
|166MHz |66MHz | 2x |Closed| Open |Open|2 & 3|1 & |2 & |
| | | | | | | | 2 | 3 |
|-------+------+----------+------+------+----+-----+----+----|
|200MHz |75MHz | 2x |Closed| Open |Open|1 & 2|2 & |1 & |
| | | | | | | | 3 | 2 |
|-------+------+----------+------+------+----+-----+----+----|
|233MHz |75MHz | 2.5x |Closed|Closed|Open|1 & 2|2 & |1 & |
| | | | | | | | 3 | 2 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX M II) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier|JBFO|JBF1|JBF2|JCK1 |JCK2 |JCK3 |
| speed | speed | | | | | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|300MHz | 66MHz | 3.5x |Open|Open|Open|2 & 3|1 & 2|2 & 3|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier| JBFO | JBF1 |JBF2|JCK1 |JCK2|JCK3|
| speed |speed | | | | | | | |
|-------+------+----------+------+------+----+-----+----+----|
| 75MHz |50MHz | 1.5x | Open | Open |Open|2 & 3|2 & |2 & |
| | | | | | | | 3 | 3 |
|-------+------+----------+------+------+----+-----+----+----|
| 90MHz |60MHz | 1.5x | Open | Open |Open|1 & 2|2 & |2 & |
| | | | | | | | 3 | 3 |
|-------+------+----------+------+------+----+-----+----+----|
|100MHz |66MHz | 1.5x | Open | Open |Open|2 & 3|1 & |2 & |
| | | | | | | | 2 | 3 |
|-------+------+----------+------+------+----+-----+----+----|
|120MHz |60MHz | 1.5x | Open | Open |Open|1 & 2|2 & |2 & |
| | | | | | | | 3 | 3 |
|-------+------+----------+------+------+----+-----+----+----|
|133MHz |66MHz | 1.5x | Open | Open |Open|2 & 3|1 & |2 & |
| | | | | | | | 2 | 3 |
|-------+------+----------+------+------+----+-----+----+----|
|166MHz |66MHz | 2.5x |Closed|Closed|Open|2 & 3|1 & |2 & |
| | | | | | | | 2 | 3 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6) |
|------------------------------------------------------------|
| CPU |Clock|Multiplier| JBFO | JBF1 | JBF2 |JCK1|JCK2|JCK3|
| speed |speed| | | | | | | |
|-------+-----+----------+------+------+------+----+----+----|
|166MHz |66MHz| 2.5x |Closed|Closed| Open |2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|-------+-----+----------+------+------+------+----+----+----|
|200MHz |66MHz| 3x | Open |Closed| Open |2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|-------+-----+----------+------+------+------+----+----+----|
|233MHz |66MHz| 3.5x | Open | Open | Open |2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|-------+-----+----------+------+------+------+----+----+----|
|266MHz |66MHz| 4x |Closed| Open |Closed|2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|-------+-----+----------+------+------+------+----+----+----|
|300MHz |66MHz| 4.5x |Closed|Closed|Closed|2 & |1 & |2 & |
| | | | | | | 3 | 2 | 3 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6-2) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier| JBFO |JBF1| JBF2 |JCK1 |JCK2|JCK3|
| speed |speed | | | | | | | |
|-------+------+----------+------+----+------+-----+----+----|
|266MHz |66MHz | 4x |Closed|Open|Closed|2 & 3|1 & |2 & |
| | | | | | | | 2 | 3 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier| JBFO | JBF1 |JBF2|JCK1 |JCK2|JCK3|
| speed |speed | | | | | | | |
|-------+------+----------+------+------+----+-----+----+----|
| 75MHz |50MHz | 1.5x | Open | Open |Open|2 & 3|2 & |2 & |
| | | | | | | | 3 | 3 |
|-------+------+----------+------+------+----+-----+----+----|
| 90MHz |60MHz | 1.5x | Open | Open |Open|1 & 2|2 & |2 & |
| | | | | | | | 3 | 3 |
|-------+------+----------+------+------+----+-----+----+----|
|100MHz |66MHz | 1.5x | Open | Open |Open|2 & 3|1 & |2 & |
| | | | | | | | 2 | 3 |
|-------+------+----------+------+------+----+-----+----+----|
|120MHz |60MHz | 2x |Closed| Open |Open|1 & 2|2 & |2 & |
| | | | | | | | 3 | 3 |
|-------+------+----------+------+------+----+-----+----+----|
|133MHz |66MHz | 2x |Closed| Open |Open|2 & 3|1 & |2 & |
| | | | | | | | 2 | 3 |
|-------+------+----------+------+------+----+-----+----+----|
|150MHz |60MHz | 2.5x |Closed|Closed|Open|1 & 2|2 & |2 & |
| | | | | | | | 3 | 3 |
|-------+------+----------+------+------+----+-----+----+----|
|166MHz |66MHz | 2.5x |Closed|Closed|Open|2 & 3|1 & |2 & |
| | | | | | | | 2 | 3 |
|-------+------+----------+------+------+----+-----+----+----|
|180MHz |60MHz | 3x | Open |Closed|Open|1 & 2|2 & |2 & |
| | | | | | | | 3 | 3 |
|-------+------+----------+------+------+----+-----+----+----|
|200MHz |66MHz | 3x | Open |Closed|Open|2 & 3|1 & |2 & |
| | | | | | | | 2 | 3 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL MMX) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier| JBFO | JBF1 |JBF2|JCK1 |JCK2|JCK3|
| speed |speed | | | | | | | |
|-------+------+----------+------+------+----+-----+----+----|
|166MHz |66MHz | 2.5x |Closed|Closed|Open|2 & 3|1 & |2 & |
| | | | | | | | 2 | 3 |
|-------+------+----------+------+------+----+-----+----+----|
|200MHz |66MHz | 3x | Open |Closed|Open|2 & 3|1 & |2 & |
| | | | | | | | 2 | 3 |
|-------+------+----------+------+------+----+-----+----+----|
|233MHz |66MHz | 3.5x | Open | Open |Open|2 & 3|1 & |2 & |
| | | | | | | | 2 | 3 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (SINGLE) |
|------------------------------------------------------------|
| Voltage | JPW1 | JV1 | JV2 |
|--------------+----------------------------+-------+--------|
| 3.3v | 1 & 2, 5 & 6, 7 & 8 | Open | 1 & 2 |
|--------------+----------------------------+-------+--------|
| 3.4v – 3.6v | 1 & 2, 3 & 4, 5 & 6, 7 & 8 | Open | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (DUAL) |
|------------------------------------------------------------|
| Voltage | V core | JPW1 | JV1 | JV2 |
|-----------+---------+--------------+--------------+--------|
| 3.3v | 2.2v | 1 & 2, 7 & 8 | 1 & 2, 3 & 4 | 2 & 3 |
|-----------+---------+--------------+--------------+--------|
| 3.3v | 2.8v | 7 & 8 | 1 & 2, 3 & 4 | 1 & 2 |
|-----------+---------+--------------+--------------+--------|
| 3.3v | 2.9v | 1 & 2, 7 & 8 | 1 & 2, 3 & 4 | 1 & 2 |
|-----------+---------+--------------+--------------+--------|
| 3.3v | 3.2v | 5 & 6, 7 & 8 | 1 & 2, 3 & 4 | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+