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# EFA CORPORATION
P5V580-AT-C
Device Type Mainboard
Processor CX 6X86/CX 6X86L/CX 686MX/AM K5/AM
K6/Pentium/Pentium MMX
Processor Speed 75/90/100/120/133/150/166/200/233MHz
Chip Set VIA
Video Chip Set None
Maximum Onboard 256MB (EDO supported)
Memory
Maximum Video None
Memory
Cache 256/512KB
BIOS Award
Dimensions 230mm x 220mm
I/O Options 32-bit PCI slots (3), floppy drive interface,
green PC connector, IDE interfaces (2),
parallel port, PS/2 mouse interface, serial
ports (2), IR connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+---------------+------------|
| Serial port 1 | CN1 | Power LED & | J7/pins |
| | | keylock | 1/3/5/7/9 |
|--------------------+----------+---------------+------------|
| Serial port 2 | CN2 | Speaker | J7/pins |
| | | | 2/4/6/8 |
|--------------------+----------+---------------+------------|
| Floppy drive | CN3 | Turbo LED | J7/pins 11 |
| interface | | | & 12 |
|--------------------+----------+---------------+------------|
| Parallel port | CN4 | Green PC | J7/pins 13 |
| | | connector | & 14 |
|--------------------+----------+---------------+------------|
| IDE interface 2 | CN5 | IDE interface | J7/pins 15 |
| | | LED | & 16 |
|--------------------+----------+---------------+------------|
| IDE interface 1 | CN6 | Reset switch | J7/pins 17 |
| | | | & 18 |
|--------------------+----------+---------------+------------|
| PS/2 mouse | J2 | 32-bit PCI | PC1 – PC3 |
| interface | | slots | |
|--------------------+----------+---------------+------------|
| IR connector | J6 | | |
|------------------------------------------------------------|
| Note: The location of J6 is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | Factory configured - do not | J4 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | J5 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP4 | Unidentified |
| | alter (CMOS memory) | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP11 | Unidentified |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 1 | Bank 2 |
|------------------+--------------------+--------------------|
| 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 1 | Bank 2 |
|------------------+--------------------+--------------------|
| 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. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|----------------------------+-------------------------------|
| 256KB | (2) 32K x 32 |
|----------------------------+-------------------------------|
| 512KB | (2) 64K x 32 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier|JP2 | JP3 | JP6 | JP7 | JP8 |
| | speed | | | | | | |
|---------+---------+----------+----+------+-----+-----+-----|
| 120MHz | 50MHz | 2x |Open|Closed|2 & 3|2 & 3|2 & 3|
|---------+---------+----------+----+------+-----+-----+-----|
| 133MHz | 55MHz | 2x |Open|Closed|1 & 2|2 & 3|2 & 3|
|---------+---------+----------+----+------+-----+-----+-----|
| 150MHz | 60MHz | 2x |Open|Closed|2 & 3|2 & 3|1 & 2|
|---------+---------+----------+----+------+-----+-----+-----|
| 166MHz | 66MHz | 2x |Open|Closed|2 & 3|1 & 2|2 & 3|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86L) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier| JP2 | JP3 | JP6 | JP7 | JP8 |
| | speed | | | | | | |
|---------+-------+----------+------+------+-----+-----+-----|
| 166MHz | 66MHz | 2x | Open |Closed|2 & 3|1 & 2|2 & 3|
|---------+-------+----------+------+------+-----+-----+-----|
| 200MHz | 75MHz | 2.5x |Closed|Closed|1 & 2|2 & 3|1 & 2|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86MX) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier| JP2 | JP3 | JP6 | JP7 | JP8 |
| | speed | | | | | | |
|---------+-------+----------+------+------+-----+-----+-----|
| 166MHz | 60MHz | 2.5x |Closed|Closed|2 & 3|2 & 3|1 & 2|
|---------+-------+----------+------+------+-----+-----+-----|
| 166MHz | 66MHz | 2x | Open |Closed|2 & 3|1 & 2|2 & 3|
|---------+-------+----------+------+------+-----+-----+-----|
| 200MHz | 66MHz | 2.5x |Closed|Closed|2 & 3|1 & 2|2 & 3|
|---------+-------+----------+------+------+-----+-----+-----|
| 200MHz | 75MHz | 2x | Open |Closed|1 & 2|2 & 3|1 & 2|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier| JP2 | JP3 | JP6 | JP7 | JP8 |
| | speed | | | | | | |
|---------+-------+----------+------+------+-----+-----+-----|
| 75MHz | 50MHz | 1.5x | Open | Open |2 & 3|2 & 3|2 & 3|
|---------+-------+----------+------+------+-----+-----+-----|
| 90MHz | 60MHz | 1.5x | Open | Open |2 & 3|2 & 3|1 & 2|
|---------+-------+----------+------+------+-----+-----+-----|
| 100MHz | 66MHz | 1.5x | Open | Open |2 & 3|1 & 2|2 & 3|
|---------+-------+----------+------+------+-----+-----+-----|
| 120MHz | 60MHz | 1.5x | Open | Open |2 & 3|2 & 3|1 & 2|
|---------+-------+----------+------+------+-----+-----+-----|
| 133MHz | 66MHz | 1.5x | Open | Open |2 & 3|1 & 2|2 & 3|
|---------+-------+----------+------+------+-----+-----+-----|
| 150MHz | 60MHz | 2.5x |Closed|Closed|2 & 3|2 & 3|1 & 2|
|---------+-------+----------+------+------+-----+-----+-----|
| 166MHz | 66MHz | 2.5x |Closed|Closed|2 & 3|1 & 2|2 & 3|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier| JP2 | JP3 | JP6 | JP7 | JP8 |
| | speed | | | | | | |
|---------+-------+----------+------+------+-----+-----+-----|
| 166MHz | 66MHz | 2.5x |Closed|Closed|2 & 3|1 & 2|2 & 3|
|---------+-------+----------+------+------+-----+-----+-----|
| 200MHz | 66MHz | 3x |Closed| Open |2 & 3|1 & 2|2 & 3|
|---------+-------+----------+------+------+-----+-----+-----|
| 233MHz | 66MHz | 3.5x | Open | Open |2 & 3|1 & 2|2 & 3|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier| JP2 | JP3 | JP6 | JP7 | JP8 |
| | speed | | | | | | |
|---------+-------+----------+------+------+-----+-----+-----|
| 75MHz | 50MHz | 1.5x | Open | Open |2 & 3|2 & 3|2 & 3|
|---------+-------+----------+------+------+-----+-----+-----|
| 90MHz | 60MHz | 1.5x | Open | Open |2 & 3|2 & 3|1 & 2|
|---------+-------+----------+------+------+-----+-----+-----|
| 100MHz | 66MHz | 1.5x | Open | Open |2 & 3|1 & 2|2 & 3|
|---------+-------+----------+------+------+-----+-----+-----|
| 120MHz | 60MHz | 2x | Open |Closed|2 & 3|2 & 3|1 & 2|
|---------+-------+----------+------+------+-----+-----+-----|
| 133MHz | 66MHz | 2x | Open |Closed|2 & 3|1 & 2|2 & 3|
|---------+-------+----------+------+------+-----+-----+-----|
| 150MHz | 60MHz | 2.5x |Closed|Closed|2 & 3|2 & 3|1 & 2|
|---------+-------+----------+------+------+-----+-----+-----|
| 166MHz | 66MHz | 2.5x |Closed|Closed|2 & 3|1 & 2|2 & 3|
|---------+-------+----------+------+------+-----+-----+-----|
| 200MHz | 66MHz | 3x |Closed| Open |2 & 3|1 & 2|2 & 3|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL MMX) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier| JP2 | JP3 | JP6 | JP7 | JP8 |
| | speed | | | | | | |
|---------+-------+----------+------+------+-----+-----+-----|
| 166MHz | 66MHz | 2.5x |Closed|Closed|2 & 3|1 & 2|2 & 3|
|---------+-------+----------+------+------+-----+-----+-----|
| 200MHz | 66MHz | 3x |Closed| Open |2 & 3|1 & 2|2 & 3|
|---------+-------+----------+------+------+-----+-----+-----|
| 233MHz | 66MHz | 3.5x | Open | Open |2 & 3|1 & 2|2 & 3|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP5 | JP10 |
|-----------------------+--------------------+---------------|
| AMD | Pins 1 & 2 closed | Open |
|-----------------------+--------------------+---------------|
| Cyrix | Pins 1 & 2 closed | Closed |
|-----------------------+--------------------+---------------|
| CX 6X86L-200 | Pins 2 & 3 closed | Closed |
|-----------------------+--------------------+---------------|
| CX 6X86MX-200 (75MHz) | Pins 2 & 3 closed | Closed |
|-----------------------+--------------------+---------------|
| Intel | Pins 1 & 2 closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JP1 | JP9A | JP9B | JP9C | JP9D | JP9E |
|---------+------+-------+--------+--------+--------+--------|
| 2.1v | * | Open | Open | Open | Open | Closed |
|---------+------+-------+--------+--------+--------+--------|
| 2.8v | 3 & | Open | Closed | Open | Open | Open |
| | 5, 4 | | | | | |
| | & 6 | | | | | |
|---------+------+-------+--------+--------+--------+--------|
| 2.9v | 3 & | Open | Closed | Open | Open | Closed |
| | 5, 4 | | | | | |
| | & 6 | | | | | |
|---------+------+-------+--------+--------+--------+--------|
| 3.2v | 3 & | Open | Closed | Closed | Open | Open |
| | 5, 4 | | | | | |
| | & 6 | | | | | |
|---------+------+-------+--------+--------+--------+--------|
| 3.3v | 1 & | Open | Closed | Closed | Open | Closed |
| | 3, 2 | | | | | |
| | & 4 | | | | | |
|---------+------+-------+--------+--------+--------+--------|
| 3.5v | 1 & | Open | Closed | Closed | Closed | Closed |
| | 3, 2 | | | | | |
| | & 4 | | | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. * |
| = Reserved for future CPUs. |
+------------------------------------------------------------+