(TXT) View Source
# EPOX COMPUTER CO., LTD.
P55KTX
Device Type Mainboard
Processor CX 6X86L/IBM 6X86L/CX 686MX/IBM 6X86MX/AM K5/
AM K6/Pentium/Pentium MMX
Processor Speed 90/100/120/133/150/166/200/233/266/300/333MHz
Chip Set VIA
Video Chip Set None
Maximum Onboard 256MB (SDRAM supported)
Memory
Maximum Video None
Memory
Cache 512KB
BIOS Award
Dimensions 305mm x 244mm
I/O Options 32-bit PCI slots (4), floppy drive interface,
IDE interfaces (2), parallel port, PS/2 mouse
port, serial ports (2), IR connector, USB
connector, ATX power connector
NPU Options None
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| ATX power | ATX | CPU fan power | J6 |
| connector | | | |
|-------------------+----------+------------------+----------|
| USB connector | CN1 | Power LED & | J12A |
| | | keylock | |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN2 | Speaker | J12B |
|-------------------+----------+------------------+----------|
| Parallel port | CN3 | Reset switch | J12C |
|-------------------+----------+------------------+----------|
| PS/2 mouse port | CN4 | Green PC LED | J12D |
|-------------------+----------+------------------+----------|
| Serial port 1 | CN5 | Turbo LED | J12E |
|-------------------+----------+------------------+----------|
| Floppy drive | CN6 | IDE interface | J12F |
| interface | | LED | |
|-------------------+----------+------------------+----------|
| IDE interface 1 | CN7 | Soft off power | J12G |
| | | supply | |
|-------------------+----------+------------------+----------|
| IDE interface 2 | CN8 | 32-bit PCI slots | PC1 – |
| | | | PC4 |
|-------------------+----------+------------------+----------|
| IR connector | J3 | | |
|------------------------------------------------------------|
| Note: The location of J3 is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|--------------------------------+-------+-------------------|
| | Keyboard power on disabled | J1 | Pins 1 & 2 closed |
|---+----------------------------+-------+-------------------|
| | Keyboard power on enabled | J1 | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 8MB | (1) 1M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (1) 1M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 16MB | (1) 2M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 24MB | (1) 1M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 32MB | (1) 2M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 32MB | (1) 4M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 48MB | (1) 2M x 64 | (1) 2M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 64MB | (1) 4M x 64 | (1) 4M x 64 | None |
|------------+---------------+---------------+---------------|
| 64MB | (1) 8M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 96MB | (1) 4M x 64 | (1) 4M x 64 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 128MB | (1) 8M x 64 | (1) 8M x 64 | None |
|------------+---------------+---------------+---------------|
| 128MB | (1) 16M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 164MB | (1) 16M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 144MB | (1) 16M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 144MB | (1) 16M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 160MB | (1) 16M x 64 | (1) 2M x 64 | (1) 2M x 64 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 160MB | (1) 16M x 64 | (1) 4M x 64 | None |
|------------+---------------+---------------+---------------|
| 192MB | (1) 16M x 64 | (1) 4M x 64 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 192MB | (1) 16M x 64 | (1) 8M x 64 | None |
|------------+---------------+---------------+---------------|
| 192MB | (1) 8M x 64 | (1) 8M x 64 | (1) 8M x 64 |
|------------+---------------+---------------+---------------|
| 256MB | (1) 16M x 64 | (1) 16M x 64 | None |
|------------------------------------------------------------|
| Note: Board accepts SDRAM memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|----------------------------+-------------------------------|
| 512KB | (1) 64K x 64 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86L) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | J7 | J8 | J9 | J11 |
| speed | speed | | | | | |
|--------+----------+------------+-------+-----+-----+-------|
| 150MHz | 60MHz | 2.5x | 1 & 2 | 1 & | 2 & | 1 & 2 |
| | | | | 2 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 166MHz | 66MHz | 2.5x | 1 & 2 | 1 & | 2 & | Open |
| | | | | 2 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 200MHz | 75MHz | 3x | 1 & 2 | 1 & | 2 & | 3 & 4 |
| | | | | 2 | 3 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM 6X86L) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | J7 | J8 | J9 | J11 |
| speed | speed | | | | | |
|--------+----------+------------+-------+-----+-----+-------|
| 150MHz | 60MHz | 2.5x | 1 & 2 | 1 & | 2 & | 1 & 2 |
| | | | | 2 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 166MHz | 66MHz | 2.5x | 1 & 2 | 1 & | 2 & | Open |
| | | | | 2 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 200MHz | 75MHz | 3x | 1 & 2 | 1 & | 2 & | 3 & 4 |
| | | | | 2 | 3 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86MX) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | J7 | J8 | J9 | J11 |
| speed | speed | | | | | |
|--------+----------+------------+-------+-----+-----+-------|
| 166MHz | 66MHz | 2x | 1 & 2 | 1 & | 2 & | Open |
| | | | | 2 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 166MHz | 60MHz | 2.5x | 1 & 2 | 2 & | 2 & | 1 & 2 |
| | | | | 3 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 200MHz | 75MHz | 2x | 1 & 2 | 1 & | 2 & | 3 & 4 |
| | | | | 2 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 200MHz | 66MHz | 2.5x | 1 & 2 | 2 & | 2 & | Open |
| | | | | 3 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 233MHz | 75MHz | 2.5x | 1 & 2 | 2 & | 2 & | 3 & 4 |
| | | | | 3 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 233MHz | 66MHz | 3x | 1 & 2 | 2 & | 1 & | Open |
| | | | | 3 | 2 | |
|--------+----------+------------+-------+-----+-----+-------|
| 266MHz | 75MHz | 3x | 1 & 2 | 2 & | 1 & | 3 & 4 |
| | | | | 3 | 2 | |
|--------+----------+------------+-------+-----+-----+-------|
| 266MHz | 66MHz | 3.5x | 1 & 2 | 1 & | 1 & | Open |
| | | | | 2 | 2 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM 6X86MX) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | J7 | J8 | J9 | J11 |
| speed | speed | | | | | |
|--------+----------+------------+-------+-----+-----+-------|
| 166MHz | 66MHz | 2x | 1 & 2 | 1 & | 2 & | Open |
| | | | | 2 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 166MHz | 60MHz | 2.5x | 1 & 2 | 2 & | 2 & | 1 & 2 |
| | | | | 3 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 200MHz | 75MHz | 2x | 1 & 2 | 1 & | 2 & | 3 & 4 |
| | | | | 2 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 200MHz | 66MHz | 2.5x | 1 & 2 | 2 & | 2 & | Open |
| | | | | 3 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 233MHz | 75MHz | 2.5x | 1 & 2 | 2 & | 2 & | 3 & 4 |
| | | | | 3 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 233MHz | 66MHz | 3x | 1 & 2 | 2 & | 1 & | Open |
| | | | | 3 | 2 | |
|--------+----------+------------+-------+-----+-----+-------|
| 266MHz | 75MHz | 3x | 1 & 2 | 2 & | 1 & | 3 & 4 |
| | | | | 3 | 2 | |
|--------+----------+------------+-------+-----+-----+-------|
| 266MHz | 66MHz | 3.5x | 1 & 2 | 1 & | 1 & | Open |
| | | | | 2 | 2 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | J7 | J8 | J9 | J11 |
| speed | speed | | | | | |
|--------+----------+------------+-------+-----+-----+-------|
| 90MHz | 60MHz | 1.5x | 1 & 2 | 1 & | 1 & | 1 & 2 |
| | | | | 2 | 2 | |
|--------+----------+------------+-------+-----+-----+-------|
| 100MHz | 66MHz | 1.5x | 1 & 2 | 1 & | 1 & | Open |
| | | | | 2 | 2 | |
|--------+----------+------------+-------+-----+-----+-------|
| 120MHz | 60MHz | 2x | 1 & 2 | 1 & | 2 & | 1 & 2 |
| | | | | 2 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 133MHz | 66MHz | 2x | 1 & 2 | 1 & | 2 & | Open |
| | | | | 2 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 150MHz | 60MHz | 2.5x | 1 & 2 | 2 & | 2 & | 1 & 2 |
| | | | | 3 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 166MHz | 66MHz | 2.5x | 1 & 2 | 2 & | 2 & | Open |
| | | | | 3 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 200MHz | 66MHz | 3x | 1 & 2 | 2 & | 1 & | Open |
| | | | | 3 | 2 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | J7 | J8 | J9 | J11 |
| speed | speed | | | | | |
|--------+---------+------------+-------+-------+-----+------|
| 166MHz | 66MHz | 2.5x | 1 & 2 | 2 & 3 | 2 & | Open |
| | | | | | 3 | |
|--------+---------+------------+-------+-------+-----+------|
| 200MHz | 66MHz | 3x | 1 & 2 | 2 & 3 | 1 & | Open |
| | | | | | 2 | |
|--------+---------+------------+-------+-------+-----+------|
| 233MHz | 66MHz | 3.5x | 1 & 2 | 1 & 2 | 1 & | Open |
| | | | | | 2 | |
|--------+---------+------------+-------+-------+-----+------|
| 266MHz | 66MHz | 4x | 2 & 3 | 1 & 2 | 2 & | Open |
| | | | | | 3 | |
|--------+---------+------------+-------+-------+-----+------|
| 300MHz | 66MHz | 4.5x | 2 & 3 | 2 & 3 | 2 & | Open |
| | | | | | 3 | |
|--------+---------+------------+-------+-------+-----+------|
| 333MHz | 66MHz | 5x | 2 & 3 | 2 & 3 | 1 & | Open |
| | | | | | 2 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | J7 | J8 | J9 | J11 |
| speed | speed | | | | | |
|--------+----------+------------+-------+-----+-----+-------|
| 90MHz | 60MHz | 1.5x | 1 & 2 | 1 & | 1 & | 1 & 2 |
| | | | | 2 | 2 | |
|--------+----------+------------+-------+-----+-----+-------|
| 100MHz | 66MHz | 1.5x | 1 & 2 | 1 & | 1 & | Open |
| | | | | 2 | 2 | |
|--------+----------+------------+-------+-----+-----+-------|
| 120MHz | 60MHz | 2x | 1 & 2 | 1 & | 2 & | 1 & 2 |
| | | | | 2 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 133MHz | 66MHz | 2x | 1 & 2 | 1 & | 2 & | Open |
| | | | | 2 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 150MHz | 60MHz | 2.5x | 1 & 2 | 2 & | 2 & | 1 & 2 |
| | | | | 3 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 166MHz | 66MHz | 2.5x | 1 & 2 | 2 & | 2 & | Open |
| | | | | 3 | 3 | |
|--------+----------+------------+-------+-----+-----+-------|
| 200MHz | 66MHz | 3x | 1 & 2 | 2 & | 1 & | Open |
| | | | | 3 | 2 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL MMX) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | J7 | J8 | J9 | J11 |
| speed | speed | | | | | |
|--------+---------+------------+-------+-------+-----+------|
| 166MHz | 66MHz | 2.5x | 1 & 2 | 2 & 3 | 2 & | Open |
| | | | | | 3 | |
|--------+---------+------------+-------+-------+-----+------|
| 200MHz | 66MHz | 3x | 1 & 2 | 2 & 3 | 1 & | Open |
| | | | | | 2 | |
|--------+---------+------------+-------+-------+-----+------|
| 233MHz | 66MHz | 3.5x | 1 & 2 | 1 & 2 | 1 & | Open |
| | | | | | 2 | |
|--------+---------+------------+-------+-------+-----+------|
| 266MHz | 66MHz | 4x | 2 & 3 | 1 & 2 | 2 & | Open |
| | | | | | 3 | |
|--------+---------+------------+-------+-------+-----+------|
| 300MHz | 66MHz | 4.5x | 2 & 3 | 2 & 3 | 2 & | Open |
| | | | | | 3 | |
|--------+---------+------------+-------+-------+-----+------|
| 333MHz | 66MHz | 5x | 2 & 3 | 2 & 3 | 1 & | Open |
| | | | | | 2 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | J10 |
|----------------------------+-------------------------------|
| 2.0v | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 2.8v | Pins 3 & 4 closed |
|----------------------------+-------------------------------|
| 2.9v | Pins 5 & 6 closed |
|----------------------------+-------------------------------|
| 3.2v | Pins 7 & 8 closed |
|----------------------------+-------------------------------|
| 3.5v | Pins 9 & 10 closed |
+------------------------------------------------------------+