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# EPOX COMPUTER CO., LTD.
P55-VP
Processor CX M1/AM K5/Pentium
Processor Speed 75/90/100/120/133/150/166/180/200MHz
Chip Set VIA
Video Chip Set None
Maximum Onboard 192MB (EDO supported)
Memory
Maximum Video None
Memory
Cache 256/512KB
BIOS Award
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 interface, serial
ports (2), IR connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+------------------+-----------|
| Serial port 1 | CN1 | Power LED & | J5/pins 1 |
| | | keylock | – 5 |
|------------------+----------+------------------+-----------|
| Serial port 2 | CN2 | Speaker | J5/pins 7 |
| | | | - 10 |
|------------------+----------+------------------+-----------|
| Floppy drive | CN3 | Reset switch | J5/pins |
| interface | | | 12 & 13 |
|------------------+----------+------------------+-----------|
| Parallel port | CN4 | Green PC | J5/pins |
| | | connector | 15 & 16 |
|------------------+----------+------------------+-----------|
| IDE interface 2 | CN5 | Turbo LED | J5/pins |
| | | | 18 & 19 |
|------------------+----------+------------------+-----------|
| IDE interface 1 | CN6 | IDE interface | J5/pins |
| | | LED | 21 & 22 |
|------------------+----------+------------------+-----------|
| PS/2 mouse | J1 | Green PC LED | J5/pins |
| interface | | | 24 & 25 |
|------------------+----------+------------------+-----------|
| IR connector | J2 | 32-bit PCI slots | PC1 – PC3 |
|------------------+----------+------------------+-----------|
| Chassis fan | J3 | | |
| power | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-----------------------------------+-------+----------------|
| | Flash BIOS voltage select 12v | JP1 | Pins 2 & 3 |
| | | | closed |
|---+-------------------------------+-------+----------------|
| | Flash BIOS voltage select 5v | JP1 | Pins 1 & 2 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM/DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 8MB | (2) 1M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 8MB | None | None | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 16MB | (2) 2M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 16MB | None | None | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 16MB | (2) 1M x 36 | None | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 24MB | (2) 1M x 36 | None | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 24MB | (2) 2M x 36 | None | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 24MB | (2) 1M x 36 | (2) 1M x 36 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 32MB | (2) 4M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 32MB | None | None | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 32MB | (2) 2M x 36 | None | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 40MB | (2) 1M x 36 | None | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 40MB | (2) 4M x 36 | None | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 48MB | (2) 2M x 36 | None | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 48MB | (2) 4M x 36 | None | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 48MB | (2) 2M x 36 | (2) 2M x 36 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 64MB | (2) 8M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 64MB | None | None | (1) 8M x 64 |
|------------+---------------+---------------+---------------|
| 64MB | (2) 4M x 36 | None | (1) 4M x 64 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM/DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 72MB | (2) 1M x 36 | None | (1) 8M x 64 |
|------------+---------------+---------------+---------------|
| 72MB | (2) 8M x 36 | None | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 80MB | (2) 2M x 36 | None | (1) 8M x 64 |
|------------+---------------+---------------+---------------|
| 80MB | (2) 8M x 36 | None | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 96MB | (2) 4M x 36 | None | (1) 8M x 64 |
|------------+---------------+---------------+---------------|
| 96MB | (2) 8M x 36 | None | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 96MB | (2) 4M x 36 | (2) 4M x 36 | (2) 4M x 36 |
|------------+---------------+---------------+---------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 | None |
|------------+---------------+---------------+---------------|
| 128MB | (2) 8M x 36 | None | (1) 8M x 64 |
|------------+---------------+---------------+---------------|
| 192MB | (2) 8M x 36 | (2) 8M x 36 | (1) 8M x 64 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 256KB | (2) 32K x 32 | Unidentified |
|------------------+--------------------+--------------------|
| 512KB | (2) 64K x 32 | Unidentified |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CYRIX) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| JP2A | JP2B | JP2C | JP7 | JP8 |
| speed | speed | | | | | | |
|-------+--------+----------+------+------+------+-----+-----|
|120MHz | 50MHz | 2x |Closed|Closed|Closed|2 & 3|1 & 2|
|-------+--------+----------+------+------+------+-----+-----|
|133MHz | 55MHz | 2x |Closed|Closed| Open |2 & 3|1 & 2|
|-------+--------+----------+------+------+------+-----+-----|
|150MHz | 60MHz | 2x | Open |Closed|Closed|2 & 3|1 & 2|
|-------+--------+----------+------+------+------+-----+-----|
|166MHz | 66MHz | 2x |Closed| Open |Closed|2 & 3|1 & 2|
|-------+--------+----------+------+------+------+-----+-----|
|200MHz | 75MHz | 2x | Open |Closed| Open |2 & 3|1 & 2|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AMD) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| JP2A | JP2B | JP2C | JP7 | JP8 |
| speed | speed | | | | | | |
|-------+--------+----------+------+------+------+-----+-----|
| 75MHz | 50MHz | 1.5x |Closed|Closed|Closed|1 & 2|1 & 2|
|-------+--------+----------+------+------+------+-----+-----|
| 90MHz | 60MHz | 1.5x | Open |Closed|Closed|1 & 2|1 & 2|
|-------+--------+----------+------+------+------+-----+-----|
|100MHz | 66MHz | 1.5x |Closed| Open |Closed|1 & 2|1 & 2|
|-------+--------+----------+------+------+------+-----+-----|
|120MHz | 60MHz | 2x | Open |Closed|Closed|2 & 3|1 & 2|
|-------+--------+----------+------+------+------+-----+-----|
|133MHz | 66MHz | 2x |Closed| Open |Closed|2 & 3|1 & 2|
|-------+--------+----------+------+------+------+-----+-----|
|150MHz | 60MHz | 2.5x | Open |Closed|Closed|2 & 3|2 & 3|
|-------+--------+----------+------+------+------+-----+-----|
|166MHz | 66MHz | 2.5x |Closed| Open |Closed|2 & 3|2 & 3|
|-------+--------+----------+------+------+------+-----+-----|
|180MHz | 60MHz | 3x | Open |Closed|Closed|1 & 2|2 & 3|
|-------+--------+----------+------+------+------+-----+-----|
|200MHz | 66MHz | 3x |Closed| Open |Closed|1 & 2|2 & 3|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| JP2A | JP2B | JP2C | JP7 | JP8 |
| speed | speed | | | | | | |
|-------+--------+----------+------+------+------+-----+-----|
| 75MHz | 50MHz | 1.5x |Closed|Closed|Closed|1 & 2|1 & 2|
|-------+--------+----------+------+------+------+-----+-----|
| 90MHz | 60MHz | 1.5x | Open |Closed|Closed|1 & 2|1 & 2|
|-------+--------+----------+------+------+------+-----+-----|
|100MHz | 66MHz | 1.5x |Closed| Open |Closed|1 & 2|1 & 2|
|-------+--------+----------+------+------+------+-----+-----|
|120MHz | 60MHz | 2x | Open |Closed|Closed|2 & 3|1 & 2|
|-------+--------+----------+------+------+------+-----+-----|
|133MHz | 66MHz | 2x |Closed| Open |Closed|2 & 3|1 & 2|
|-------+--------+----------+------+------+------+-----+-----|
|150MHz | 60MHz | 2.5x | Open |Closed|Closed|2 & 3|2 & 3|
|-------+--------+----------+------+------+------+-----+-----|
|166MHz | 66MHz | 2.5x |Closed| Open |Closed|2 & 3|2 & 3|
|-------+--------+----------+------+------+------+-----+-----|
|180MHz | 60MHz | 3x | Open |Closed|Closed|1 & 2|2 & 3|
|-------+--------+----------+------+------+------+-----+-----|
|200MHz | 66MHz | 3x |Closed| Open |Closed|1 & 2|2 & 3|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP4A | JP4B | JP4C | JP6 |
|-----------+-------------+------------+------------+--------|
| CX6X86 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Open |
| | closed | closed | closed | |
|-----------+-------------+------------+------------+--------|
| CX6X86L | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Open |
| | closed | closed | closed | |
|-----------+-------------+------------+------------+--------|
| AM K5 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Closed |
| | closed | closed | closed | |
|-----------+-------------+------------+------------+--------|
| AM K6 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Closed |
| | closed | closed | closed | |
|-----------+-------------+------------+------------+--------|
| Intel | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Closed |
| | closed | closed | closed | |
|-----------+-------------+------------+------------+--------|
| Intel MMX | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Closed |
| | closed | closed | closed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JP3 |
|----------------------------+-------------------------------|
| » | 2.5v | Pins 1 & 2 closed |
|---+------------------------+-------------------------------|
| | 2.8v | Pins 2 & 3 closed |
|---+------------------------+-------------------------------|
| | 2.9v | Open |
+------------------------------------------------------------+