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# EPOX COMPUTER CO., LTD.
P55-TV
Processor CX M1/AM K5/Pentium
Processor Speed 75/90/100/120/133/150/166/180/200MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 128MB (EDO supported)
Memory
Maximum Video None
Memory
Cache 256/512KB
BIOS Award
Dimensions 330mm x 218mm
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), cache slot, IR connector
NPU Options None
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| PS/2 mouse | CN1 | Green PC | J3 |
| interface | | connector | |
|-------------------+----------+------------------+----------|
| Serial port 1 | CN2 | IDE interface | J4 |
| | | LED | |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN3 | Green PC LED | J5 |
|-------------------+----------+------------------+----------|
| Parallel port | CN4 | Turbo switch | J6 |
|-------------------+----------+------------------+----------|
| Floppy drive | CN5 | Reset switch | J7 |
| interface | | | |
|-------------------+----------+------------------+----------|
| IDE interface 1 | CN6 | Speaker | J8 |
|-------------------+----------+------------------+----------|
| IDE interface 2 | CN7 | Power LED & | J9 |
| | | keylock | |
|-------------------+----------+------------------+----------|
| IR connector | J1 | 32-bit PCI slots | PC1 - |
| | | | PC4 |
|-------------------+----------+------------------+----------|
| Chassis fan power | J2 | Cache slot | SL1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-----------------------------------+-------+----------------|
| | Clock rate set as ISA CLOCK | JP2 | Pins 1 & 2 |
| | | | closed |
|---+-------------------------------+-------+----------------|
| | Clock rate set as 12MHz | JP2 | Pins 2 & 3 |
| | | | closed |
|---+-------------------------------+-------+----------------|
| | Flash BIOS normal operation | JP7 | Pins 1 & 2 |
| | | | closed |
|---+-------------------------------+-------+----------------|
| | Flash BIOS flash mode | JP7 | Pins 2 & 3 |
| | | | closed |
|---+-------------------------------+-------+----------------|
| | Flash BIOS voltage select 5v | JP8 | Pins 1 & 2 |
| | | | closed |
|---+-------------------------------+-------+----------------|
| | Flash BIOS voltage select 12v | JP8 | Pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 8MB | None | None | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 8MB | (2) 1M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | None | None | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 16MB | None | (2) 1M x 36 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 16MB | (2) 2M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 24MB | None | (2) 2M x 36 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 24MB | None | (2) 1M x 36 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 32MB | None | None | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 32MB | None | (2) 2M x 36 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 32MB | (2) 4M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 40MB | None | (2) 4M x 36 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 40MB | None | (2) 1M x 36 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 48MB | None | (2) 2M x 36 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 48MB | None | (2) 4M x 36 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 48MB | (2) 2M x 36 | (2) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 64MB | None | None | (1) 8M x 64 |
|------------+---------------+---------------+---------------|
| 64MB | None | (2) 4M x 36 | (1) 4M x 64 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|---------+------------------+---------------+---------------|
| 64MB | (2) 8M x 36 | None | None |
|---------+------------------+---------------+---------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 | None |
|---------+------------------+---------------+---------------|
| 72MB | None | (2) 8M x 36 | (1) 1M x 64 |
|---------+------------------+---------------+---------------|
| 72MB | None | (2) 1M x 36 | (1) 8M x 64 |
|---------+------------------+---------------+---------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 | None |
|---------+------------------+---------------+---------------|
| 80MB | None | (2) 2M x 36 | (1) 8M x 64 |
|---------+------------------+---------------+---------------|
| 80MB | None | (2) 8M x 36 | (1) 2M x 64 |
|---------+------------------+---------------+---------------|
| 80MB | (2) 2M x 36 | (2) 8M x 36 | None |
|---------+------------------+---------------+---------------|
| 96MB | None | (2) 8M x 36 | (1) 4M x 64 |
|---------+------------------+---------------+---------------|
| 96MB | None | (2) 4M x 36 | (1) 8M x 64 |
|---------+------------------+---------------+---------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 | None |
|---------+------------------+---------------+---------------|
| 128MB | None | (2) 8M x 36 | (1) 8M x 64 |
|---------+------------------+---------------+---------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 | None |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. Board also accepts x 32 |
| SIMMs. Banks are interchangeable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | SL1 | TAG |
|-----------+--------------+------------------+--------------|
| 256KB (A) | (2) 32K x 32 | Not installed | Unidentified |
|-----------+--------------+------------------+--------------|
| 256KB (B) | None | 256KB module | Unidentified |
| | | installed | |
|-----------+--------------+------------------+--------------|
| 512KB (C) | (2) 32K x 32 | 256KB module | Unidentified |
| | | installed | |
|-----------+--------------+------------------+--------------|
| 512KB (A) | (2) 64K x 32 | Not installed | Unidentified |
|-----------+--------------+------------------+--------------|
| 512KB (B) | None | 512KB module | Unidentified |
| | | installed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP15 | JP16 |
|------------------+--------------------+--------------------|
| 256KB (A) | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 256KB (B) | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 512KB (C) | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 512KB (A) | Pins 1 & 2 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 512KB (B) | Pins 2 & 3 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CYRIX) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| JP3 | JP4 | JP5 |JP19 |JP20 |
| speed | speed | | | | | | |
|-------+---------+----------+-----+------+------+-----+-----|
|120MHz | 50MHz | 2x |1 & 2|Closed|Closed|1 & 2|2 & 3|
|-------+---------+----------+-----+------+------+-----+-----|
|133MHz | 55MHz | 2x |1 & 2| Open |Closed|1 & 2|2 & 3|
|-------+---------+----------+-----+------+------+-----+-----|
|150MHz | 60MHz | 2x |2 & 3|Closed| Open |1 & 2|2 & 3|
|-------+---------+----------+-----+------+------+-----+-----|
|166MHz | 66MHz | 2x |2 & 3| Open | Open |1 & 2|2 & 3|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
|CPU speed| Clock |Multiplier| JP3 | JP4 | JP5 |JP19 |JP20 |
| | speed | | | | | | |
|---------+-------+----------+-----+------+------+-----+-----|
| 75MHz | 50MHz | 1.5x |1 & 2|Closed|Closed|1 & 2|1 & 2|
|---------+-------+----------+-----+------+------+-----+-----|
| 90MHz | 60MHz | 1.5x |2 & 3|Closed| Open |1 & 2|1 & 2|
|---------+-------+----------+-----+------+------+-----+-----|
| 100MHz | 66MHz | 1.5x |2 & 3| Open | Open |1 & 2|1 & 2|
|---------+-------+----------+-----+------+------+-----+-----|
| 120MHz | 60MHz | 2x |2 & 3|Closed| Open |1 & 2|2 & 3|
|---------+-------+----------+-----+------+------+-----+-----|
| 133MHz | 66MHz | 2x |2 & 3| Open | Open |1 & 2|2 & 3|
|---------+-------+----------+-----+------+------+-----+-----|
| 150MHz | 60MHz | 2.5x |2 & 3|Closed| Open |2 & 3|2 & 3|
|---------+-------+----------+-----+------+------+-----+-----|
| 166MHz | 66MHz | 2.5x |2 & 3| Open | Open |2 & 3|2 & 3|
|---------+-------+----------+-----+------+------+-----+-----|
| 180MHz | 60MHz | 3x |2 & 3|Closed| Open |2 & 3|1 & 2|
|---------+-------+----------+-----+------+------+-----+-----|
| 200MHz | 66MHz | 3x |2 & 3| Open | Open |2 & 3|1 & 2|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP18A | JP18B | JP18C | JP18D |
|----------+------------+------------+-----------+-----------|
| CX M1 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & | Pins 1 & |
| | closed | closed | 2 closed | 2 closed |
|----------+------------+------------+-----------+-----------|
| AM K5 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & | Pins 1 & |
| | closed | closed | 2 closed | 2 closed |
|----------+------------+------------+-----------+-----------|
| P54C/CTB | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & | Pins 1 & |
| | closed | closed | 2 closed | 2 closed |
|----------+------------+------------+-----------+-----------|
| P55C | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & | Pins 2 & |
| | closed | closed | 3 closed | 3 closed |
+------------------------------------------------------------+