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# SOYO COMPUTER CO., LTD.
5EA5/A5C
Processor CX 6X86/CX 6X86L/CX 6X86MX/AM K5/AM
K6/Pentium
Processor Speed 75/90/100/120/133/150/166/180/200/233/266MHz
Chip Set Unidentified
Video Chip Set None
Maximum Onboard 256MB (EDO supported)
Memory
Maximum Video None
Memory
Cache 512KB
BIOS Unidentified
Dimensions 254mm x 218mm
I/O Options 32-bit PCI slots (3), floppy drive interface,
green PC connector, IDE interfaces (2),
parallel port, PS/2 mouse port, serial ports
(2), IR connector, USB connector
NPU Options None
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| PS/2 mouse port | CN1 | Serial port 1 | CN9 |
|-------------------+----------+------------------+----------|
| Floppy drive | CN2 | Power LED & | J17 |
| interface | | keylock | |
|-------------------+----------+------------------+----------|
| USB connector | CN3 | Speaker | J18 |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN4 | Reset switch | J19 |
|-------------------+----------+------------------+----------|
| IR connector | CN5 | Green PC | J23 |
| | | connector | |
|-------------------+----------+------------------+----------|
| Parallel port | CN6 | IDE interface | J24 |
| | | LED | |
|-------------------+----------+------------------+----------|
| IDE interface 2 | CN7 | 32-bit PCI slots | PC1 - |
| | | | PC3 |
|-------------------+----------+------------------+----------|
| IDE interface 1 | CN8 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|----------------------------------+-------+-----------------|
| » | CMOS memory normal operation | JP5 | Pins 1 & 2 |
| | | | closed |
|---+------------------------------+-------+-----------------|
| | CMOS memory clear | JP5 | Pins 2 & 3 |
| | | | closed |
|---+------------------------------+-------+-----------------|
| » | PCI bus select synchronous | JP16 | Pins 1 & 2 |
| | | | closed |
|---+------------------------------+-------+-----------------|
| | PCI bus select asynchronous | JP16 | Pins 2 & 3 |
| | | | closed |
|---+------------------------------+-------+-----------------|
| | EMI signals disabled | JP25 | Closed |
|---+------------------------------+-------+-----------------|
| | EMI signals enabled | JP25 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|---------------+----------------------+---------------------|
| 8MB | (2) 1M x 36 | None |
|---------------+----------------------+---------------------|
| 16MB | (2) 2M x 36 | None |
|---------------+----------------------+---------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|---------------+----------------------+---------------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 |
|---------------+----------------------+---------------------|
| 32MB | (2) 4M x 36 | None |
|---------------+----------------------+---------------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 |
|---------------+----------------------+---------------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 |
|---------------+----------------------+---------------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 |
|---------------+----------------------+---------------------|
| 64MB | (2) 8M x 36 | None |
|---------------+----------------------+---------------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 |
|---------------+----------------------+---------------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 |
|---------------+----------------------+---------------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 |
|---------------+----------------------+---------------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 |
|---------------+----------------------+---------------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 |
|---------------+----------------------+---------------------|
| 128MB | (2) 16M x 36 | None |
|---------------+----------------------+---------------------|
| 136MB | (2) 16M x 36 | (2) 1M x 36 |
|---------------+----------------------+---------------------|
| 144MB | (2) 16M x 36 | (2) 2M x 36 |
|---------------+----------------------+---------------------|
| 160MB | (2) 16M x 36 | (2) 4M x 36 |
|---------------+----------------------+---------------------|
| 192MB | (2) 16M x 36 | (2) 8M x 36 |
|---------------+----------------------+---------------------|
| 256MB | (2) 16M x 36 | (2) 16M x 36 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. Banks are interchangeable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|----------------------------+-------------------------------|
| 8MB | (1) 1M x 64 |
|----------------------------+-------------------------------|
| 16MB | (1) 2M x 64 |
|----------------------------+-------------------------------|
| 32MB | (1) 4M x 64 |
|----------------------------+-------------------------------|
| 64MB | (1) 8M x 64 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 512KB | (2) 64K x 32 | (1) 16K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86/6X 86L) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier|JP10 |JP11 |JP12 | JP13 |JP14|
| | speed | | | | | | |
|---------+---------+----------+-----+-----+-----+------+----|
| 120MHz | 50MHz | 2x |2 & 3|2 & 3|2 & 3|Closed|Open|
|---------+---------+----------+-----+-----+-----+------+----|
| 133MHz | 55MHz | 2x |1 & 2|2 & 3|2 & 3|Closed|Open|
|---------+---------+----------+-----+-----+-----+------+----|
| 150MHz | 60MHz | 2x |1 & 2|2 & 3|2 & 3|Closed|Open|
|---------+---------+----------+-----+-----+-----+------+----|
| 166MHz | 66MHz | 2x |2 & 3|1 & 2|2 & 3|Closed|Open|
|---------+---------+----------+-----+-----+-----+------+----|
| 200MHz | 75MHz | 2x |1 & 2|2 & 3|1 & 2|Closed|Open|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86MX) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier|JP10 |JP11 |JP12 | JP13 | JP14 |
| speed | speed | | | | | | |
|-------+---------+----------+-----+-----+-----+------+------|
|166MHz | 66MHz | 2.5x |2 & 3|2 & 3|1 & 2|Closed|Closed|
|-------+---------+----------+-----+-----+-----+------+------|
|200MHz | 66MHz | 2.5x |2 & 3|1 & 2|2 & 3|Closed|Closed|
|-------+---------+----------+-----+-----+-----+------+------|
|233MHz | 66MHz | 3x |2 & 3|1 & 2|2 & 3| Open |Closed|
|-------+---------+----------+-----+-----+-----+------+------|
|233MHz | 75MHz | 2.5x |1 & 2|2 & 3|1 & 2|Closed|Closed|
|-------+---------+----------+-----+-----+-----+------+------|
|266MHz | 75MHz | 3x |1 & 2|2 & 3|1 & 2| Open |Closed|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier|JP10 |JP11 |JP12 | JP13 | JP14 |
| speed | speed | | | | | | |
|-------+---------+----------+-----+-----+-----+------+------|
| 75MHz | 50MHz | 1.5x |2 & 3|2 & 3|2 & 3| Open | Open |
|-------+---------+----------+-----+-----+-----+------+------|
| 90MHz | 60MHz | 1.5x |1 & 2|2 & 3|2 & 3| Open | Open |
|-------+---------+----------+-----+-----+-----+------+------|
|100MHz | 66MHz | 1.5x |2 & 3|1 & 2|2 & 3| Open | Open |
|-------+---------+----------+-----+-----+-----+------+------|
|120MHz | 60MHz | 1.5x |1 & 2|2 & 3|2 & 3| Open | Open |
|-------+---------+----------+-----+-----+-----+------+------|
|133MHz | 66MHz | 1.5x |2 & 3|1 & 2|2 & 3| Open | Open |
|-------+---------+----------+-----+-----+-----+------+------|
|150MHz | 60MHz | 2x |1 & 2|2 & 3|2 & 3|Closed| Open |
|-------+---------+----------+-----+-----+-----+------+------|
|166MHz | 66MHz | 2.5x |2 & 3|1 & 2|2 & 3|Closed|Closed|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier|JP10 |JP11 |JP12 | JP13 | JP14 |
| speed | speed | | | | | | |
|-------+---------+----------+-----+-----+-----+------+------|
|150MHz | 60MHz | 2x |1 & 2|2 & 3|2 & 3|Closed| Open |
|-------+---------+----------+-----+-----+-----+------+------|
|166MHz | 66MHz | 2.5x |2 & 3|1 & 2|2 & 3|Closed|Closed|
|-------+---------+----------+-----+-----+-----+------+------|
|200MHz | 66MHz | 3x |2 & 3|1 & 2|2 & 3| Open |Closed|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier|JP10 |JP11 |JP12 | JP13 | JP14 |
| speed | speed | | | | | | |
|-------+---------+----------+-----+-----+-----+------+------|
| 75MHz | 50MHz | 1.5x |2 & 3|2 & 3|2 & 3| Open | Open |
|-------+---------+----------+-----+-----+-----+------+------|
| 90MHz | 60MHz | 1.5x |1 & 2|2 & 3|2 & 3| Open | Open |
|-------+---------+----------+-----+-----+-----+------+------|
|100MHz | 66MHz | 1.5x |2 & 3|1 & 2|2 & 3| Open | Open |
|-------+---------+----------+-----+-----+-----+------+------|
|120MHz | 60MHz | 2x |1 & 2|2 & 3|2 & 3|Closed| Open |
|-------+---------+----------+-----+-----+-----+------+------|
|133MHz | 66MHz | 2x |2 & 3|1 & 2|2 & 3|Closed| Open |
|-------+---------+----------+-----+-----+-----+------+------|
|150MHz | 60MHz | 2.5x |1 & 2|2 & 3|2 & 3|Closed|Closed|
|-------+---------+----------+-----+-----+-----+------+------|
|166MHz | 66MHz | 2.5x |2 & 3|1 & 2|2 & 3|Closed|Closed|
|-------+---------+----------+-----+-----+-----+------+------|
|180MHz | 60MHz | 3x |1 & 2|2 & 3|2 & 3| Open |Closed|
|-------+---------+----------+-----+-----+-----+------+------|
|200MHz | 66MHz | 3x |2 & 3|1 & 2|2 & 3| Open |Closed|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (SINGLE) |
|------------------------------------------------------------|
| Voltage | JP30 | JP31 | JP32 |
|-------------------+----------+-----------------+-----------|
| | 3.3v | Open | 1 & 2, 3 & 4 | 1 & 2 |
|-------+-----------+----------+-----------------+-----------|
| » | 3.52v | Open | 1 & 2, 3 & 4 | 3 & 4 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (DUAL) |
|------------------------------------------------------------|
| Voltage | JP30 | JP31 | JP32 |
|-------------------+-----------------+----------+-----------|
| » | 2.8v | 1 & 2, 3 & 4 | Open | 5 & 6 |
|-------+-----------+-----------------+----------+-----------|
| | 2.9v | 1 & 2, 3 & 4 | Open | 7 & 8 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+