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# ASUS COMPUTER INTERNATIONAL
P/I-XP55T2P4 (REV. 3.00)
Processor CX M1/AM K5/Pentium
Processor Speed 75/90/100/120/133/150/166/200MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 256MB (EDO supported)
Memory
Maximum Video None
Memory
Cache 256/512KB
BIOS Unidentified
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 port, serial ports
(2), cache slot, IR connector, USB connector,
ATX power connector, MediaBus slot
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+---------------+-------------|
| ATX power | ATX | Power LED & | CN10 pins 1 |
| connector | | keylock | - 5 |
|-------------------+----------+---------------+-------------|
| Serial port 2 | CN1 | Speaker | CN10 pins 7 |
| | | | - 10 |
|-------------------+----------+---------------+-------------|
| Parallel port | CN2 | Power LED | CN10 pins |
| | | | 12 & 13 |
|-------------------+----------+---------------+-------------|
| PS/2 mouse port | CN3 | Green PC | CN10 pins |
| | | connector | 14 & 15 |
|-------------------+----------+---------------+-------------|
| Serial port 1 | CN4 | ATX power | CN10 pins |
| | | switch | 16 & 17 |
|-------------------+----------+---------------+-------------|
| Floppy drive | CN5 | Reset switch | CN10 pins |
| interface | | | 19 & 20 |
|-------------------+----------+---------------+-------------|
| IDE interface 2 | CN6 | USB connector | CN11 |
|-------------------+----------+---------------+-------------|
| IDE interface 1 | CN7 | 32-bit PCI | PC1 - PC4 |
| | | slots | |
|-------------------+----------+---------------+-------------|
| IR connector | CN8 | Cache slot | SL1 |
|-------------------+----------+---------------+-------------|
| IDE interface LED | CN9 | MediaBus slot | SL2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | Factory configured - do not | J1 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | On board I/O enabled | JP16 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | On board I/O disabled | JP16 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | CMOS memory normal operation | JP17 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | CMOS memory clear | JP17 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Flash BIOS write protect | JP18 | Pins 1 & 2 |
| | disabled | | closed |
|---+---------------------------------+-------+--------------|
| | Flash BIOS write protect | JP18 | Pins 2 & 3 |
| | enabled | | closed |
|---+---------------------------------+-------+--------------|
| » | Battery test mode normal | JP19 | Closed |
| | operation | | |
|---+---------------------------------+-------+--------------|
| | Battery test mode test mode | JP19 | Open |
| | enabled | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 36 | None |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 36 | None |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 4M x 36 | None |
|------------------+--------------------+--------------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 8M x 36 | None |
|------------------+--------------------+--------------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 128MB | (2) 16M x 36 | None |
|------------------+--------------------+--------------------|
| 136MB | (2) 16M x 36 | (2) 1M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON'T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|---------------+----------------------+---------------------|
| 144MB | (2) 16M x 36 | (2) 2M x 36 |
|---------------+----------------------+---------------------|
| 160MB | (2) 16M x 36 | (2) 4M x 36 |
|---------------+----------------------+---------------------|
| 192MB | (2) 16M x 36 | (2) 8M x 36 |
|---------------+----------------------+---------------------|
| 256MB | (2) 16M x 36 | (2) 16M x 36 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. Banks are interchangeable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|-----------+--------------+------------------+--------------|
| 256KB (A) | None | 256KB module | Unidentified |
| | | installed | |
|-----------+--------------+------------------+--------------|
| 256KB (B) | (2) 32K x 32 | Not installed | Unidentified |
|-----------+--------------+------------------+--------------|
| 512KB (A) | (2) 32K x 32 | 256KB module | Unidentified |
| | | installed | |
|-----------+--------------+------------------+--------------|
| 512KB (B) | None | 512KB module | Unidentified |
| | | installed | |
|-----------+--------------+------------------+--------------|
| 512KB (C) | (2) 64K x 32 | Not installed | Unidentified |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP14 |
|----------------------------+-------------------------------|
| 256KB (A) | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 256KB (B) | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 512KB (A) | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 512KB (B) | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 512KB (C) | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHEABLE SIZE CONFIGURATION |
|------------------------------------------------------------|
| Size | JP15 |
|----------------------------+-------------------------------|
| » | 64MB | Pins 1 & 2 closed |
|---+------------------------+-------------------------------|
| | 512MB | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CYRIX) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP9 | JP10 | JP12 | JP13 |
| speed | speed | | | | | |
|--------+---------+------------+-----+-------+-------+------|
| 166MHz | 66MHz | 2x | 1 & | 2 & 3 | 2 & 3 | 1 & |
| | | | 2 | | | 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AMD) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP9 | JP10 | JP12 | JP13 |
| speed | speed | | | | | |
|--------+---------+------------+-----+-------+-------+------|
| 75MHz | 50MHz | 1.5x | 2 & | 2 & 3 | 1 & 2 | 1 & |
| | | | 3 | | | 2 |
|--------+---------+------------+-----+-------+-------+------|
| 90MHz | 60MHz | 1.5x | 2 & | 1 & 2 | 1 & 2 | 1 & |
| | | | 3 | | | 2 |
|--------+---------+------------+-----+-------+-------+------|
| 100MHz | 66MHz | 1.5x | 1 & | 2 & 3 | 1 & 2 | 1 & |
| | | | 2 | | | 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP9 | JP10 | JP12 | JP13 |
| speed | speed | | | | | |
|--------+---------+------------+-----+-------+-------+------|
| 75MHz | 50MHz | 1.5x | 2 & | 2 & 3 | 1 & 2 | 1 & |
| | | | 3 | | | 2 |
|--------+---------+------------+-----+-------+-------+------|
| 90MHz | 60MHz | 1.5x | 2 & | 1 & 2 | 1 & 2 | 1 & |
| | | | 3 | | | 2 |
|--------+---------+------------+-----+-------+-------+------|
| 100MHz | 66MHz | 1.5x | 1 & | 2 & 3 | 1 & 2 | 1 & |
| | | | 2 | | | 2 |
|--------+---------+------------+-----+-------+-------+------|
| 120MHz | 60MHz | 2x | 2 & | 1 & 2 | 2 & 3 | 1 & |
| | | | 3 | | | 2 |
|--------+---------+------------+-----+-------+-------+------|
| 133MHz | 66MHz | 2x | 1 & | 2 & 3 | 2 & 3 | 1 & |
| | | | 2 | | | 2 |
|--------+---------+------------+-----+-------+-------+------|
| 150MHz | 60MHz | 2.5x | 2 & | 1 & 2 | 2 & 3 | 2 & |
| | | | 3 | | | 3 |
|--------+---------+------------+-----+-------+-------+------|
| 166MHz | 66MHz | 2.5x | 1 & | 2 & 3 | 2 & 3 | 2 & |
| | | | 2 | | | 3 |
|--------+---------+------------+-----+-------+-------+------|
| 200MHz | 66MHz | 3x | 1 & | 2 & 3 | 1 & 2 | 2 & |
| | | | 2 | | | 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (SINGLE) |
|------------------------------------------------------------|
| Voltage | JP1 |
|-------------------------------+----------------------------|
| 3.3v - 3.465v (STD) | Pins 1 & 2 closed |
|-------------------------------+----------------------------|
| 3.4v - 3.6v (VRE) | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (DUAL) |
|------------------------------------------------------------|
| Voltage | J2 |
|----------------------------+-------------------------------|
| 2.5v | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 2.7v | Pins 3 & 4 closed |
|----------------------------+-------------------------------|
| 2.8v | Pins 5 & 6 closed |
|----------------------------+-------------------------------|
| 2.9v | Pins 7 & 8 closed |
+------------------------------------------------------------+