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# MICRO-STAR INTERNATIONAL CO., LTD.
MS-5143
Processor CX M1/AM K5/Pentium
Processor Speed 75/90/100/120/133/150/166/200MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 128MB (EDO supported)
Memory
Maximum Video None
Memory
Cache 256/512KB
BIOS Unidentified
Dimensions 305mm x 235mm
I/O Options 32-bit PCI slots (4), floppy drive interface,
green PC connector, IDE interfaces (2),
parallel port, PS/2 mouse port, PS/2 mouse
interface, serial ports (2), IR connector,
USB connector, ATX power connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+------------------+-----------|
| ATX power | ATX | Speaker | JFP pins |
| connector | | | 7 - 10 |
|------------------+----------+------------------+-----------|
| Serial port 2 | CN1 | Turbo LED | JFP pins |
| | | | 12 & 13 |
|------------------+----------+------------------+-----------|
| Parallel port | CN2 | Reset switch | JFP pins |
| | | | 19 & 20 |
|------------------+----------+------------------+-----------|
| PS/2 mouse port | CN3 | IDE interface | JFP pins |
| | | LED | 21 & 22 |
|------------------+----------+------------------+-----------|
| Serial port 1 | CN4 | IR connector | JIR1 |
|------------------+----------+------------------+-----------|
| IDE interface 1 | CN5 | Green PC LED | JGL |
|------------------+----------+------------------+-----------|
| IDE interface 2 | CN6 | Green PC | JGS |
| | | connector | |
|------------------+----------+------------------+-----------|
| Floppy drive | CN7 | Remote power | JRMS |
| interface | | switch | |
|------------------+----------+------------------+-----------|
| Auxiliary | J1 pins | Speaker | JSPK |
| keyboard | 1 – 4 | | |
| connector | | | |
|------------------+----------+------------------+-----------|
| PS/2 mouse | J1 pins | 32-bit PCI slots | PC1 – PC4 |
| interface | 5 - 8 | | |
|------------------+----------+------------------+-----------|
| Chassis fan | JFAN | USB port | USB |
| power | | | |
|------------------+----------+------------------+-----------|
| Power LED & | JFP pins | | |
| keylock | 1 - 5 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | Factory configured - do not | JP1 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP2 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JRTC | Unidentified |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM/DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 8MB | (2) 1M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 8MB | None | (2) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 8MB | None | None | (1) 1M x | None |
| | | | 64 | |
|------+-------------+-------------+------------+------------|
| 16MB | (2) 2M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | None | None | (1) 2M x | None |
| | | | 64 | |
|------+-------------+-------------+------------+------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | (2) 1M x 36 | None | None | (1) 1M x |
| | | | | 64 |
|------+-------------+-------------+------------+------------|
| 16MB | None | None | (1) 1M x | (1) 1M x |
| | | | 64 | 64 |
|------+-------------+-------------+------------+------------|
| 24MB | (2) 1M x 36 | None | (1) 1M x | (1) 1M x |
| | | | 64 | 64 |
|------+-------------+-------------+------------+------------|
| 24MB | None | (2) 2M x 36 | (1) 1M x | None |
| | | | 64 | |
|------+-------------+-------------+------------+------------|
| 32MB | (2) 4M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 32MB | None | None | (1) 4M x | None |
| | | | 64 | |
|------+-------------+-------------+------------+------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 40MB | (2) 4M x 36 | None | None | (1) 1M x |
| | | | | 64 |
|------+-------------+-------------+------------+------------|
| 48MB | (2) 2M x 36 | None | None | (1) 4M x |
| | | | | 64 |
|------+-------------+-------------+------------+------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 48MB | (2) 4M x 36 | None | None | (1) 2M x |
| | | | | 64 |
|------+-------------+-------------+------------+------------|
| 64MB | (2) 8M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 64MB | None | None | None | (1) 8M x |
| | | | | 64 |
|------+-------------+-------------+------------+------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 | None | None |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM/DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 64MB | (2) 4M x 36 | None | None | (1) 4M x |
| | | | | 64 |
|-------+-------------+------------+------------+------------|
| 64MB | None | None | (1) 4M x | (1) 4M x |
| | | | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 64MB | None | (2) 4M x | (1) 4M x | None |
| | | 36 | 64 | |
|-------+-------------+------------+------------+------------|
| 72MB | (2) 8M x 36 | (2) 1M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 72MB | (2) 8M x 36 | None | None | (1) 1M x |
| | | | | 64 |
|-------+-------------+------------+------------+------------|
| 80MB | (2) 8M x 36 | (2) 2M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 96MB | (2) 4M x 36 | None | None | (1) 8M x |
| | | | | 64 |
|-------+-------------+------------+------------+------------|
| 96MB | (2) 8M x 36 | (2) 4M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 96MB | (2) 8M x 36 | None | None | (1) 4M x |
| | | | | 64 |
|-------+-------------+------------+------------+------------|
| 96MB | None | (2) 8M x | (1) 4M x | None |
| | | 36 | 64 | |
|-------+-------------+------------+------------+------------|
| 128MB | None | None | (1) 8M x | (1) 8M x |
| | | | 64 | 64 |
|-------+-------------+------------+------------+------------|
| 128MB | (2) 8M x 36 | (2) 8M x | None | None |
| | | 36 | | |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JP2 |
|----------------------------+-------------------------------|
| 3.3v | Pins 1 & 3, 2 & 4 closed |
|----------------------------+-------------------------------|
| 5v | Pins 3 & 5, 4 & 6 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Note: The location of the banks is unidentified. The size |
| of the chips is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CYRIX) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier|SW/1|SW/2|SW/3|SW/4|SW/5|SW/6|
| | speed | | | | | | | |
|---------+---------+----------+----+----+----+----+----+----|
| 120MHz | 50MHz | 2x | On |Off | On | On |Off |Off |
|---------+---------+----------+----+----+----+----+----+----|
| 133MHz | 55MHz | 2x | On |Off |Off | On |Off |Off |
|---------+---------+----------+----+----+----+----+----+----|
| 150MHz | 60MHz | 2x | On |Off | On |Off |Off |Off |
|---------+---------+----------+----+----+----+----+----+----|
| 166MHz | 66MHz | 2x | On |Off |Off |Off |Off |Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AMD) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier|SW/1|SW/2|SW/3|SW/4|SW/5|SW/6|
| | speed | | | | | | | |
|---------+---------+----------+----+----+----+----+----+----|
| 75MHz | 50MHz | 1.5x |Off |Off | On | On |Off |Off |
|---------+---------+----------+----+----+----+----+----+----|
| 90MHz | 60MHz | 1.5x |Off |Off | On |Off |Off |Off |
|---------+---------+----------+----+----+----+----+----+----|
| 100MHz | 66MHz | 1.5x |Off |Off |Off |Off |Off |Off |
|---------+---------+----------+----+----+----+----+----+----|
| 120MHz | 60MHz | 2x | On |Off | On |Off |Off |Off |
|---------+---------+----------+----+----+----+----+----+----|
| 133MHz | 66MHz | 2x | On |Off |Off |Off |Off |Off |
|---------+---------+----------+----+----+----+----+----+----|
| 150MHz | 60MHz | 2.5x | On | On | On |Off |Off |Off |
|---------+---------+----------+----+----+----+----+----+----|
| 166MHz | 66MHz | 2.5x | On | On |Off |Off |Off |Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier|SW/1|SW/2|SW/3|SW/4|SW/5|SW/6|
| | speed | | | | | | | |
|---------+---------+----------+----+----+----+----+----+----|
| 75MHz | 50MHz | 1.5x |Off |Off | On | On |Off |Off |
|---------+---------+----------+----+----+----+----+----+----|
| 90MHz | 60MHz | 1.5x |Off |Off | On |Off |Off |Off |
|---------+---------+----------+----+----+----+----+----+----|
| 100MHz | 66MHz | 1.5x |Off |Off |Off |Off |Off |Off |
|---------+---------+----------+----+----+----+----+----+----|
| 120MHz | 60MHz | 2x | On |Off | On |Off |Off |Off |
|---------+---------+----------+----+----+----+----+----+----|
| 133MHz | 66MHz | 2x | On |Off |Off |Off |Off |Off |
|---------+---------+----------+----+----+----+----+----+----|
| 150MHz | 60MHz | 2.5x | On | On | On |Off |Off |Off |
|---------+---------+----------+----+----+----+----+----+----|
| 166MHz | 66MHz | 2.5x | On | On |Off |Off |Off |Off |
|---------+---------+----------+----+----+----+----+----+----|
| 200MHz | 66MHz | 3x |Off | On |Off |Off |Off |Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (SINGLE) |
|------------------------------------------------------------|
| Voltage | JV1 | JV2 | JV3 | JV4 | JV5 | JV6 |
|---------+-----------+--------+--------+------+------+------|
| 3.38v | 3 & 5, 4 | Closed | Open | Open | Open | Open |
| | & 6 | | | | | |
|---------+-----------+--------+--------+------+------+------|
| 3.52v | 3 & 5, 4 | Open | Closed | Open | Open | Open |
| | & 6 | | | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (DUAL) |
|------------------------------------------------------------|
| Voltage | V | JV1 | JV2 | JV3 | JV4 | JV5 | JV6 |
| | core | | | | | | |
|---------+------+------+------+------+------+--------+------|
| 3.3v | 2.8v | 1 & | Open | Open | Open | Closed | Open |
| | | 3, 2 | | | | | |
| | | & 4 | | | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+