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# ELITEGROUP COMPUTER SYSTEMS, INC.
P5TX-APRO
Processor CX 6X86/CX 686MX/IBM 6X86/IBM 6X86MX/AM K5/AM
K6/Pentium
Processor Speed 75/90/100/120/133/150/166/200/233MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 256MB
Memory
Maximum Video None
Memory
Cache 256/512KB
BIOS Award
Dimensions 305mm x 244mm
I/O Options 32-bit PCI slots (4), floppy drive interface,
green PC connector, IDE interfaces (2),
parallel port, PS/2 mouse port, serial ports
(2), IR connector, USB connectors (2), ATX
power connector
NPU Options None
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-----------------+------------|
| ATX power | ATX | Power LED | J10/pins 1 |
| connector | | | - 3 |
|------------------+----------+-----------------+------------|
| Chassis fan | C1 | Green PC | J10/pins 4 |
| power | | connector | & 5 |
|------------------+----------+-----------------+------------|
| Chassis fan | C2 | Green PC LED | J10/pins 6 |
| power | | | - 8 |
|------------------+----------+-----------------+------------|
| Chassis fan | C3 | Reset switch | J10/pins 9 |
| power | | | & 10 |
|------------------+----------+-----------------+------------|
| Parallel port | CN1 | Keylock | J10/pins |
| | | | 11 & 12 |
|------------------+----------+-----------------+------------|
| Serial port 2 | CN2 | Speaker | J10/pins |
| | | | 13 - 16 |
|------------------+----------+-----------------+------------|
| Serial port 1 | CN3 | IDE interface | J10/pins |
| | | LED | 17 & 18 |
|------------------+----------+-----------------+------------|
| USB connector | CN4 | Soft off power | J10/pins |
| | | supply | 19 & 20 |
|------------------+----------+-----------------+------------|
| USB connector | CN5 | IR connector | J13 |
|------------------+----------+-----------------+------------|
| PS/2 mouse port | CN6 | Intrusion alarm | J18 |
|------------------+----------+-----------------+------------|
| IDE interface 2 | CN7 | Wake up | J19 |
| | | connector | |
|------------------+----------+-----------------+------------|
| IDE interface 1 | CN8 | 32-bit PCI | PC1 – PC4 |
| | | slots | |
|------------------+----------+-----------------+------------|
| Floppy drive | CN9 | | |
| interface | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|----------------------------------+-------+-----------------|
| » | CMOS memory normal operation | JP2 | Pins 2 & 3 |
| | | | closed |
|---+------------------------------+-------+-----------------|
| | CMOS memory clear | JP2 | Pins 1 & 2 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 8MB | (1) 1M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (1) 2M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (1) 1M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 24MB | (1) 2M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 24MB | (1) 1M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 32MB | (1) 4M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 32MB | (1) 2M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 40MB | (1) 4M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 48MB | (1) 4M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 48MB | (1) 2M x 64 | (1) 2M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 64MB | (1) 8M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 64MB | (1) 4M x 64 | (1) 4M x 64 | None |
|------------+---------------+---------------+---------------|
| 72MB | (1) 8M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 80MB | (1) 8M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 96MB | (1) 8M x 64 | (1) 4M x 64 | None |
|------------+---------------+---------------+---------------|
| 96MB | (1) 4M x 64 | (1) 4M x 64 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 128MB | (1) 16M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 128MB | (1) 8M x 64 | (1) 8M x 64 | None |
|------------+---------------+---------------+---------------|
| 136MB | (1) 16M x 64 | (1) 1M x 64 | None |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 144MB | (1) 16M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 160MB | (1) 16M x 64 | (1) 4M x 64 | None |
|------------+---------------+---------------+---------------|
| 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 EDO memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|----------------------------+-------------------------------|
| 256KB | (2) 32K x 32 |
|----------------------------+-------------------------------|
| 512KB | (2) 64K x 32 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86) |
|------------------------------------------------------------|
| CPU speed | Clock | Multiplier | JP1 |
| | speed | | |
|------------+--------+------------+-------------------------|
| 120MHz | 50MHz | 2x | 1 & 3, 4 & 6, 11 & 13, |
| | | | 19 & 20, 21 & 22 |
|------------+--------+------------+-------------------------|
| 133MHz | 55MHz | 2x | 1 & 3, 4 & 6, 11 & 13, |
| | | | 17 & 19, 20 & 22 |
|------------+--------+------------+-------------------------|
| 150MHz | 60MHz | 2x | 1 & 3, 4 & 6, 11 & 13, |
| | | | 17 & 19, 18 & 20 |
|------------+--------+------------+-------------------------|
| 166MHz | 66MHz | 2x | 1 & 3, 4 & 6, , 9 & 11, |
| | | | 17 & 19, 18 & 20 |
|------------+--------+------------+-------------------------|
| 200MHz | 75MHz | 2x | 1 & 3, 4 & 6, 9 & 11, |
| | | | 17 & 19, 20 & 22 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86MX) |
|------------------------------------------------------------|
| CPU speed | Clock | Multiplier | JP1 |
| | speed | | |
|------------+--------+------------+-------------------------|
| 150MHz | 75MHz | 2x | 1 & 3, 4 & 6, 9 & 11, |
| | | | 17 & 19, 20 & 22 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM 6X86) |
|------------------------------------------------------------|
| CPU speed | Clock | Multiplier | JP1 |
| | speed | | |
|------------+--------+------------+-------------------------|
| 120MHz | 50MHz | 2x | 1 & 3, 4 & 6, 11 & 13, |
| | | | 19 & 20, 21 & 22 |
|------------+--------+------------+-------------------------|
| 133MHz | 55MHz | 2x | 1 & 3, 4 & 6, 11 & 13, |
| | | | 17 & 19, 20 & 22 |
|------------+--------+------------+-------------------------|
| 150MHz | 60MHz | 2x | 1 & 3, 4 & 6, 11 & 13, |
| | | | 17 & 19, 18 & 20 |
|------------+--------+------------+-------------------------|
| 166MHz | 66MHz | 2x | 1 & 3, 4 & 6, 9 & 11, |
| | | | 17 & 19, 18 & 20 |
|------------+--------+------------+-------------------------|
| 200MHz | 75MHz | 2x | 1 & 3, 4 & 6, 9 & 11, |
| | | | 17 & 19, 20 & 22 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM 6X86MX) |
|------------------------------------------------------------|
| CPU speed | Clock | Multiplier | JP1 |
| | speed | | |
|------------+--------+------------+-------------------------|
| 150MHz | 75MHz | 2x | 1 & 3, 4 & 6, 9 & 11, |
| | | | 17 & 19, 20 & 22 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
| CPU speed | Clock | Multiplier | JP1 |
| | speed | | |
|------------+--------+------------+-------------------------|
| 75MHz | 50MHz | 1.5x | 1 & 3, 2 & 4, 11 & 13, |
| | | | 19 & 20, 21 & 22 |
|------------+--------+------------+-------------------------|
| 90MHz | 60MHz | 1.5x | 1 & 3, 2 & 4, 11 & 13, |
| | | | 17 & 19, 18 & 20 |
|------------+--------+------------+-------------------------|
| 100MHz | 66MHz | 1.5x | 1 & 3, 2 & 4, 9 & 11, |
| | | | 17 & 19, 18 & 20 |
|------------+--------+------------+-------------------------|
| 120MHz | 60MHz | 1.5x | 1 & 3, 2 & 4, 11 & 13, |
| | | | 17 & 19, 18 & 20 |
|------------+--------+------------+-------------------------|
| 133MHz | 66MHz | 1.5x | 1 & 3, 2 & 4, 9 & 11, |
| | | | 17 & 19, 18 & 20 |
|------------+--------+------------+-------------------------|
| 150MHz | 60MHz | 2x | 1 & 3, 4 & 6, 11 & 13, |
| | | | 17 & 19, 18 & 20 |
|------------+--------+------------+-------------------------|
| 166MHz | 66MHz | 2x | 1 & 3, 4 & 6, 9 & 11, |
| | | | 17 & 19, 18 & 20 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6) |
|------------------------------------------------------------|
| CPU speed | Clock | Multiplier | JP1 |
| | speed | | |
|------------+--------+------------+-------------------------|
| 200MHz | 66MHz | 3x | 2 & 4, 3 & 5, 9 & 11, |
| | | | 17 & 19, 18 & 20 |
|------------+--------+------------+-------------------------|
| 233MHz | 66MHz | 3.5x | 1 & 3, 2 & 4, 9 & 11, |
| | | | 17 & 19, 18 & 20 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
| CPU speed | Clock | Multiplier | JP1 |
| | speed | | |
|------------+---------+------------+------------------------|
| 75MHz | 50MHz | 1.5x | 1 & 3, 2 & 4, 11 & 13, |
| | | | 19 & 21, 20 & 22 |
|------------+---------+------------+------------------------|
| 90MHz | 60MHz | 1.5x | 1 & 3, 2 & 4, 11 & 13, |
| | | | 17 & 19, 18 & 20 |
|------------+---------+------------+------------------------|
| 100MHz | 66MHz | 1.5x | 1 & 3, 2 & 4, 9 & 11, |
| | | | 17 & 19, 18 & 20 |
|------------+---------+------------+------------------------|
| 120MHz | 60MHz | 2x | 1 & 3, 4 & 6, 11 & 13, |
| | | | 17 & 19, 18 & 20 |
|------------+---------+------------+------------------------|
| 133MHz | 66MHz | 2x | 1 & 3, 2 & 4, 9 & 11, |
| | | | 17 & 19, 18 & 20 |
|------------+---------+------------+------------------------|
| 150MHz | 60MHz | 2.5x | 3 & 5, 4 & 6, 11 & 13, |
| | | | 17 & 19, 18 & 20 |
|------------+---------+------------+------------------------|
| 166MHz | 66MHz | 2.5x | 3 & 5, 4 & 6, 9 & 11, |
| | | | 17 & 19, 18 & 20 |
|------------+---------+------------+------------------------|
| 200MHz | 66MHz | 3x | 2 & 4, 3 & 5, 9 & 11, |
| | | | 17 & 19, 18 & 20 |
|------------+---------+------------+------------------------|
| 233MHz | 66MHz | 3.5x | 1 & 3, 2 & 4, 9 & 11, |
| | | | 17 & 19, 18 & 20 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JP4 |
|----------------------------+-------------------------------|
| | 2.54v | Pins 1 & 2 closed |
|---+------------------------+-------------------------------|
| » | 2.84v | Pins 3 & 4 closed |
|---+------------------------+-------------------------------|
| | 2.94v | Pins 5 & 6 closed |
|---+------------------------+-------------------------------|
| | 3.24v | Pins 7 & 8 closed |
|---+------------------------+-------------------------------|
| | 3.34v | Pins 9 & 10 closed |
+------------------------------------------------------------+