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# ASUS COMPUTER INTERNATIONAL
P/I-P55TP4XE (VER. 2.4)
Processor Pentium
Processor Speed 75/90/100/120/133/150/166MHz
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, VRM
connector, MediaBus slot
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+------------+----------------+-----------|
| Serial port 1 | CN1 | Power LED & | CN8 pins |
| | | keylock | 11 - 15 |
|------------------+------------+----------------+-----------|
| Serial port 2 | CN2 | Speaker | CN8 pins |
| | | | 17 - 20 |
|------------------+------------+----------------+-----------|
| Parallel port | CN3 | IDE interface | JP17 |
| | | LED | |
|------------------+------------+----------------+-----------|
| Floppy drive | CN4 | Chassis fan | JP30 |
| interface | | power | |
|------------------+------------+----------------+-----------|
| IDE interface 1 | CN5 | IR connector | JP31 |
|------------------+------------+----------------+-----------|
| IDE interface 2 | CN6 | 32-bit PCI | PC1 - PC4 |
| | | slots | |
|------------------+------------+----------------+-----------|
| PS/2 mouse | CN7 | MediaBus slot | SL1 |
| interface | | | |
|------------------+------------+----------------+-----------|
| Turbo LED | CN8 pins 2 | Cache slot | SL2 |
| | & 3 | | |
|------------------+------------+----------------+-----------|
| Green PC | CN8 pins 4 | VRM connector | VRM |
| connector | & 5 | | |
|------------------+------------+----------------+-----------|
| Reset switch | CN8 pins 9 | | |
| | & 10 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|------------------------------------+---------+-------------|
| » | On board multi I/O enabled | JP4 | Pins 1 & 2 |
| | | | closed |
|----+-------------------------------+---------+-------------|
| | On board multi I/O disabled | JP4 | Pins 2 & 3 |
| | | | closed |
|----+-------------------------------+---------+-------------|
| » | PS/2 mouse disabled | JP7 | Pins 2 & 3 |
| | | | closed |
|----+-------------------------------+---------+-------------|
| | PS/2 mouse enabled | JP7 | Pins 1 & 2 |
| | | | closed |
|----+-------------------------------+---------+-------------|
| » | CMOS memory normal operation | JP13 | Open |
|----+-------------------------------+---------+-------------|
| | CMOS memory clear | JP13 | Closed |
|------------------------------------------------------------|
| Note: If the multi I/O chip is a UM8669F, JP4 is not used. |
| It is enabled or disabled through the BIOS. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 32 | None |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 32 | None |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 32 | (2) 1M x 32 |
|------------------+--------------------+--------------------|
| 24MB | (2) 1M x 32 | (2) 2M x 32 |
|------------------+--------------------+--------------------|
| 24MB | (2) 2M x 32 | (2) 1M x 32 |
|------------------+--------------------+--------------------|
| 32MB | None | (2) 4M x 32 |
|------------------+--------------------+--------------------|
| 32MB | (2) 2M x 32 | (2) 2M x 32 |
|------------------+--------------------+--------------------|
| 40MB | (2) 1M x 32 | (2) 4M x 32 |
|------------------+--------------------+--------------------|
| 40MB | (2) 4M x 32 | (2) 1M x 32 |
|------------------+--------------------+--------------------|
| 48MB | (2) 2M x 32 | (2) 4M x 32 |
|------------------+--------------------+--------------------|
| 48MB | (2) 4M x 32 | (2) 2M x 32 |
|------------------+--------------------+--------------------|
| 64MB | (2) 4M x 32 | (2) 4M x 32 |
|------------------+--------------------+--------------------|
| 72MB | (2) 1M x 32 | (2) 8M x 32 |
|------------------+--------------------+--------------------|
| 72MB | (2) 8M x 32 | (2) 1M x 32 |
|------------------+--------------------+--------------------|
| 80MB | (2) 2M x 32 | (2) 8M x 32 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 80MB | (2) 8M x 32 | (2) 2M x 32 |
|------------------+--------------------+--------------------|
| 96MB | (2) 4M x 32 | (2) 8M x 32 |
|------------------+--------------------+--------------------|
| 96MB | (2) 8M x 32 | (2) 4M x 32 |
|------------------+--------------------+--------------------|
| 128MB | (2) 8M x 32 | (2) 8M x 32 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. Memory banks are |
| interchangeable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG | SL2 |
|-------+---------+---------+-------------+------------------|
| 256KB | (4) 32K | (4) 32K | (1) | Not installed |
| (A) | x 8 | x 8 | 8K/16/K/32K | |
| | | | x 8 | |
|-------+---------+---------+-------------+------------------|
| 256KB | None | None | None | 256KB module |
| (B) | | | | Installed |
|-------+---------+---------+-------------+------------------|
| 512KB | (4) 64K | (4) 64K | (1) 16K/32K | Not installed |
| (A) | x 8 | x 8 | x 8 | |
|-------+---------+---------+-------------+------------------|
| 512KB | None | None | None | 512KB module |
| (B) | | | | Installed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP16 |
|-------------------------------+----------------------------|
| Asynchronous cache enabled | Pins 1 & 2 closed |
|-------------------------------+----------------------------|
| Asynchronous cache disabled | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP12 |
|----------------------------+-------------------------------|
| 256KB (A) | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 512KB (A) | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JP8 | JP9 | JP10 | JP11 |
|---------------+-----------+----------+----------+----------|
| Mixed voltage | Closed | Closed | Open | Open |
|---------------+-----------+----------+----------+----------|
| 3.3v | Open | Open | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| JP14 | JP15 |JP26 |JP27 |JP28 |
| speed | speed | | | | | | |
|-------+---------+----------+------+------+-----+-----+-----|
| 75MHz | 50MHz | 1.5x | Open | Open |1 & 2|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|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JP22 | JP23 | JP24 |
|-------------------+--------------+-------------+-----------|
| 3.3v (STD/VR) | Closed | Open | Open |
|-------------------+--------------+-------------+-----------|
| 3.4v - 3.6v (VRE) | Open | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Setting | JP18 | JP19 | JP20 | JP21 |
|-------------------+----------+---------+---------+---------|
| VRM not installed | Closed | Closed | Closed | Closed |
|-------------------+----------+---------+---------+---------|
| VRM installed | Open | Open | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 SELECTION |
|------------------------------------------------------------|
| Setting | JP1 | JP2 |
|------------------------+-----------------+-----------------|
| » | Used as COM2 | Pins 1 & 2 | Pins 1 & 2 |
| | | closed | closed |
|---+--------------------+-----------------+-----------------|
| | Used as IR | Pins 2 & 3 | Pins 2 & 3 |
| | connector | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLASH BIOS SELECTION |
|------------------------------------------------------------|
| Setting | JP5 | JP6 |
|----------------------------------+------------+------------|
| » | Flash BIOS write protect | Pins 1 & 2 | Pins 2 & 3 |
| | enabled | closed | closed |
|---+------------------------------+------------+------------|
| | Flash BIOS write protect | Pins 2 & 3 | Pins 2 & 3 |
| | disabled | closed | closed |
+------------------------------------------------------------+