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# MITAC INTERNATIONAL CORPORATION
PB5400S
Processor Pentium
Processor Speed 75/90/100/120/133/150/166MHz
Chip Set SIS
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 port, serial ports
(2), VGA feature connector, VGA connector,
cache slot, IR connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| VGA feature | CO1 | Reset switch | J13 |
| connector | | | |
|-------------------+----------+------------------+----------|
| VGA connector | CO2 | Turbo LED | J14 |
|-------------------+----------+------------------+----------|
| PS/2 mouse port | J1 | Green PC | J15 |
| | | connector | |
|-------------------+----------+------------------+----------|
| Serial port 2 | J5 | IDE interface | J16 |
| | | LED | |
|-------------------+----------+------------------+----------|
| Serial port 1 | J6 | Turbo switch | J17 |
|-------------------+----------+------------------+----------|
| Parallel port | J7 | Speaker | J18 |
|-------------------+----------+------------------+----------|
| Floppy drive | J8 | Power LED & | J19 |
| interface | | keylock | |
|-------------------+----------+------------------+----------|
| IDE interface 2 | J9 | IR connector | JP1 |
|-------------------+----------+------------------+----------|
| IDE interface 1 | J10 | 32-bit PCI slots | PC1 - |
| | | | PC4 |
|-------------------+----------+------------------+----------|
| External battery | J12 | Cache slot | SL1 |
|------------------------------------------------------------|
| Note: J1 may not be present on all boards. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|----------------------------------+-------+-----------------|
| ยป | CMOS memory normal operation | JP14 | Pins 1 & 2 |
| | | | closed |
|---+------------------------------+-------+-----------------|
| | CMOS memory clear | JP14 | Pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|--------------+----------------------+----------------------|
| 2MB | (2) 256K x 32 | None |
|--------------+----------------------+----------------------|
| 4MB | (2) 512K x 32 | None |
|--------------+----------------------+----------------------|
| 4MB | (2) 256K x 32 | (2) 256K x 32 |
|--------------+----------------------+----------------------|
| 8MB | (2) 1M x 32 | None |
|--------------+----------------------+----------------------|
| 8MB | (2) 512K x 32 | (2) 512K x 32 |
|--------------+----------------------+----------------------|
| 16MB | (2) 2M x 32 | None |
|--------------+----------------------+----------------------|
| 16MB | (2) 1M x 32 | (2) 1M x 32 |
|--------------+----------------------+----------------------|
| 32MB | (2) 4M x 32 | None |
|--------------+----------------------+----------------------|
| 32MB | (2) 2M x 32 | (2) 2M x 32 |
|--------------+----------------------+----------------------|
| 64MB | (2) 8M x 32 | None |
|--------------+----------------------+----------------------|
| 64MB | (2) 4M x 32 | (2) 4M x 32 |
|--------------+----------------------+----------------------|
| 128MB | (2) 8M x 32 | (2) 8M x 32 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. Banks are interchangeable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | SL1 |
|--------------+--------------------+------------------------|
| 256KB | (2) 32K x 32 | Not installed |
|--------------+--------------------+------------------------|
| 256KB | None | 256KB module installed |
|--------------+--------------------+------------------------|
| 512KB | (2) 32K x 32 | 256KB module installed |
|------------------------------------------------------------|
| Note: The location of Bank 0 is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP5 |
|----------------------------+-------------------------------|
| 256KB | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 512KB | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP2 | JP3 | JP4 | JP10 |
| speed | speed | | | | | |
|--------+--------+------------+-------+------+------+-------|
| 75MHz | 50MHz | 1.5x | 2 & 3 | 2 & | Open | Open |
| | | | | 3 | | |
|--------+--------+------------+-------+------+------+-------|
| 90MHz | 60MHz | 1.5x | 1 & 2 | 2 & | Open | Open |
| | | | | 3 | | |
|--------+--------+------------+-------+------+------+-------|
| 100MHz | 66MHz | 1.5x | 2 & 3 | 1 & | Open | Open |
| | | | | 2 | | |
|--------+--------+------------+-------+------+------+-------|
| 120MHz | 60MHz | 2x | 1 & 2 | 2 & | Open | 1 & 3 |
| | | | | 3 | | |
|--------+--------+------------+-------+------+------+-------|
| 133MHz | 66MHz | 2x | 2 & 3 | 1 & | Open | 1 & 3 |
| | | | | 2 | | |
|--------+--------+------------+-------+------+------+-------|
| 150MHz | 60MHz | 2.5x | 1 & 2 | 2 & | Open | 1 & |
| | | | | 3 | | 3, 2 |
| | | | | | | & 4 |
|--------+--------+------------+-------+------+------+-------|
| 166MHz | 66MHz | 2.5x | 2 & 3 | 1 & | Open | 1 & |
| | | | | 2 | | 3, 2 |
| | | | | | | & 4 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JP11 |
|----------------------------+-------------------------------|
| STD/VR | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| VRE | Pins 1 & 2 closed |
+------------------------------------------------------------+