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# AUSTIN COMPUTER SYSTEMS
PREDATOR
Processor 80386DX/80486SX/80487SX/80486DX/80486DX2
Processor Speed 20/25/33/40/50(internal)/50/66(internal)MHz
Chip Set Symphony
Max. Onboard 64MB
DRAM
Cache 64/128/256KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Options Floppy drive interface, IDE interface,
parallel port, serial ports (2)
NPU Options 80387
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+----------------+------------|
| Serial port 2 | J2 | Turbo switch | J24 pins 1 |
| | | | & 2 |
|-------------------+----------+----------------+------------|
| Serial port 1 | J3 | Turbo LED | J24 pins 3 |
| | | | & 4 |
|-------------------+----------+----------------+------------|
| Mouse port | J5 | Speaker | J25 |
|-------------------+----------+----------------+------------|
| Parallel port | J14 | Reset switch | J26 |
|-------------------+----------+----------------+------------|
| Floppy interface | J21 | IDE interface | J27 |
| | | LED | |
|-------------------+----------+----------------+------------|
| IDE interface | J22 | CPU speed LED | J28 |
|-------------------+----------+----------------+------------|
| Power LED & | J23 | | |
| keylock | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | IRQ12 select mouse port | JP1 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | IRQ12 disabled | JP1 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | IRQ5 select serial port 1 | JP2 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | IRQ5 select serial port 2 | JP2 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | IRQ5 disabled | JP2 | pins 3 & 4 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Flash BIOS write enabled | JP3 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Flash BIOS write disabled | JP3 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | BIOS select standard address | JP4 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | BIOS select Flash address | JP4 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | IRQ4 select serial port 1 | JP5 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | IRQ4 select serial port 2 | JP5 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | IRQ4 disabled | JP5 | pins 3 & 4 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | IRQ3 select serial port 1 | JP6 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | IRQ3 select serial port 2 | JP6 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | IRQ3 disabled | JP6 | pins 3 & 4 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | IRQ9 select serial port 1 | JP7 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | IRQ9 select serial port 2 | JP7 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | IRQ9 disabled | JP7 | pins 3 & 4 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Parallel port IRQ select IRQ7 | JP8 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Parallel port IRQ select IRQ5 | JP8 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Parallel port IRQ select no | JP8 | pins 3 & 4 |
| | interrupt | | closed |
|---+----------------------------------+--------+------------|
| » | Monitor type select color | JP14 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | JP14 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Real time clock select normal | JP17 | pins 1 & 2 |
| | operation | | closed |
|---+----------------------------------+--------+------------|
| | Real time clock reset | JP17 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | NPU mode select synchronous with | JP22 | pins 1 & 2 |
| | CPU | | closed |
|---+----------------------------------+--------+------------|
| | NPU mode select asynchronous | JP22 | pins 2 & 3 |
| | with CPU | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP28 | pins 2 & 3 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Expansion bus enabled | JP33 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Expansion bus disabled | JP33 | pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 1MB | (4) 256K x | NONE | NONE | NONE |
| | 9 | | | |
|------+-------------+-------------+------------+------------|
| 2MB | (4) 256K x | (4) 256K x | NONE | NONE |
| | 9 | 9 | | |
|------+-------------+-------------+------------+------------|
| 3MB | (4) 256K x | (4) 256K x | (4) 256K x | NONE |
| | 9 | 9 | 9 | |
|------+-------------+-------------+------------+------------|
| 4MB | (4) 256K x | (4) 256K x | (4) 256K x | (4) 256K x |
| | 9 | 9 | 9 | 9 |
|------+-------------+-------------+------------+------------|
| 4MB | (4) 1M x 9 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 5MB | (4) 1M x 9 | (4) 256K x | NONE | NONE |
| | | 9 | | |
|------+-------------+-------------+------------+------------|
| 6MB | (4) 1M x 9 | (4) 256K x | (4) 256K x | NONE |
| | | 9 | 9 | |
|------+-------------+-------------+------------+------------|
| 7MB | (4) 1M x 9 | (4) 256K x | (4) 256K x | (4) 256K x |
| | | 9 | 9 | 9 |
|------+-------------+-------------+------------+------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 9MB | (4) 1M x 9 | (4) 1M x 9 | (4) 256K x | NONE |
| | | | 9 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 10MB | (4) 1M x 9 | (4) 1M x 9 | (4) 256K x | (4) 256K x |
| | | | 9 | 9 |
|------+-------------+-------------+------------+------------|
| 12MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
|------+-------------+-------------+------------+------------|
| 16MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
|------+-------------+-------------+------------+------------|
| 16MB | (4) 4M x 9 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 17MB | (4) 4M x 9 | (4) 256K x | NONE | NONE |
| | | 9 | | |
|------+-------------+-------------+------------+------------|
| 18MB | (4) 4M x 9 | (4) 256K x | (4) 256K x | NONE |
| | | 9 | 9 | |
|------+-------------+-------------+------------+------------|
| 19MB | (4) 4M x 9 | (4) 256K x | (4) 256K x | (4) 256K x |
| | | 9 | 9 | 9 |
|------+-------------+-------------+------------+------------|
| 20MB | (4) 4M x 9 | (4) 1M x 9 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 21MB | (4) 4M x 9 | (4) 1M x 9 | (4) 256K x | NONE |
| | | | 9 | |
|------+-------------+-------------+------------+------------|
| 22MB | (4) 4M x 9 | (4) 1M x 9 | (4) 256K x | (4) 256K x |
| | | | 9 | 9 |
|------+-------------+-------------+------------+------------|
| 24MB | (4) 4M x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
|------+-------------+-------------+------------+------------|
| 28MB | (4) 4M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
|------+-------------+-------------+------------+------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 33MB | (4) 4M x 9 | (4) 4M x 9 | (4) 256K x | NONE |
| | | | 9 | |
|------+-------------+-------------+------------+------------|
| 34MB | (4) 4M x 9 | (4) 4M x 9 | (4) 256K x | (4) 256K x |
| | | | 9 | 9 |
|------+-------------+-------------+------------+------------|
| 36MB | (4) 4M x 9 | (4) 4M x 9 | (4) 1M x 9 | NONE |
|------+-------------+-------------+------------+------------|
| 37MB | (4) 256K x | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 |
| | 9 | | | |
|------+-------------+-------------+------------+------------|
| 40MB | (4) 4M x 9 | (4) 4M x 9 | (4) 1M x 9 | (4) 1M x 9 |
|------+-------------+-------------+------------+------------|
| 48MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | NONE |
|------+-------------+-------------+------------+------------|
| 49MB | (4) 256K x | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 |
| | 9 | | | |
|------+-------------+-------------+------------+------------|
| 52MB | (4) 4M x 9 | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 |
|------+-------------+-------------+------------+------------|
| 64MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | NONE | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP12 | JP13 | JP15 | JP16 | JP18 | JP19 |JP20 |JP21 |
|------+------+------+------+------+------+------+-----+-----|
| 64KB |1 & 2 |1 & 2 |1 & 2 |1 & 2 |1 & 2 |1 & 2 |1 & 2|1 & 2|
|------+------+------+------+------+------+------+-----+-----|
|128KB |2 & 3 |2 & 3 |2 & 3 |2 & 3 |2 & 3 |2 & 3 |2 & 3|2 & 3|
|------+------+------+------+------+------+------+-----+-----|
|256KB |1 & 2 |1 & 2 |1 & 2 |1 & 2 |1 & 2 |3 & 4 |3 & 4|3 & 4|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION WITH 64KB CACHE |
|------------------------------------------------------------|
| CPU | CPU |JP9 |JP10 |JP11 |JP23 |JP25 |JP26 |JP29 |JP31|
| type |speed | | | | | | | | |
| | | | | |JP24 | |JP27 |JP30 |JP32|
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80386DX|25MHz |1 & |1 & 2|1 & 2|1 & 2| N/A | N/A |2 & 3|1 & |
| | | 2 | | | | | | | 2 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80386DX|33MHz |7 & |1 & 2|1 & 2|1 & 2| N/A | N/A |2 & 3|1 & |
| | | 8 | | | | | | | 2 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80386DX|40MHz |3 & |1 & 2|1 & 2|1 & 2| N/A | N/A |2 & 3|1 & |
| | | 4 | | | | | | | 2 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80486SX|20MHz |5 & |1 & 2|1 & 2|1 & 2|3 & 4|3 & 4|1 & 2|2 & |
| | | 6 | | | | | | | 3 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80486SX|25MHz |1 & |1 & 2|1 & 2|1 & 2|3 & 4|3 & 4|1 & 2|2 & |
| | | 2 | | | | | | | 3 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80487SX|20MHz |5 & |1 & 2|1 & 2|1 & 2|2 & 3|2 & 3|1 & 2|2 & |
| | | 6 | | | | | | | 3 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80487SX|25MHz |1 & |1 & 2|1 & 2|1 & 2|2 & 3|2 & 3|1 & 2|2 & |
| | | 2 | | | | | | | 3 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80486DX|25MHz |1 & |1 & 2|1 & 2|1 & 2|1 & 2|1 & 2|1 & 2|2 & |
| | | 2 | | | | | | | 3 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80486DX|33MHz |7 & |1 & 2|1 & 2|1 & 2|1 & 2|1 & 2|1 & 2|2 & |
| | | 8 | | | | | | | 3 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80486DX|50MHz |1 & |2 & 3|2 & 3|2 & 3|1 & 2|1 & 2|1 & 2|2 & |
| | | 2 | | | | | | | 3 |
|------------------------------------------------------------|
|Note: Speeds indicate the external speed of the CPU. Pins |
|designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION WITH 128KB CACHE |
|------------------------------------------------------------|
| CPU | CPU |JP9 |JP10 |JP11 |JP23 |JP25 |JP26 |JP29 |JP31|
| type |speed | | | | | | | | |
| | | | | |JP24 | |JP27 |JP30 |JP32|
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80386DX|25MHz |1 & |1 & 2|1 & 2|1 & 2| N/A | N/A |1 & 2|1 & |
| | | 2 | | | | | | | 2 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80386DX|33MHz |7 & |1 & 2|1 & 2|1 & 2| N/A | N/A |1 & 2|1 & |
| | | 8 | | | | | | | 2 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80386DX|40MHz |3 & |1 & 2|1 & 2|1 & 2| N/A | N/A |1 & 2|1 & |
| | | 4 | | | | | | | 2 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80486SX|20MHz |5 & |1 & 2|1 & 2|1 & 2|3 & 4|3 & 4|1 & 2|2 & |
| | | 6 | | | | | | | 3 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80486SX|25MHz |1 & |1 & 2|1 & 2|1 & 2|3 & 4|3 & 4|1 & 2|2 & |
| | | 2 | | | | | | | 3 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80487SX|20MHz |5 & |1 & 2|1 & 2|1 & 2|2 & 3|2 & 3|1 & 2|2 & |
| | | 6 | | | | | | | 3 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80487SX|25MHz |1 & |1 & 2|1 & 2|1 & 2|2 & 3|2 & 3|1 & 2|2 & |
| | | 2 | | | | | | | 3 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80486DX|25MHz |1 & |1 & 2|1 & 2|1 & 2|1 & 2|1 & 2|1 & 2|2 & |
| | | 2 | | | | | | | 3 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80486DX|33MHz |7 & |1 & 2|1 & 2|1 & 2|1 & 2|1 & 2|1 & 2|2 & |
| | | 8 | | | | | | | 3 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80486DX|50MHz |1 & |2 & 3|2 & 3|2 & 3|1 & 2|1 & 2|1 & 2|2 & |
| | | 2 | | | | | | | 3 |
|------------------------------------------------------------|
|Note: Speeds indicate the external speed of the CPU. Pins |
|designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION WITH 256KB CACHE |
|------------------------------------------------------------|
| CPU | CPU |JP9 |JP10 |JP11 |JP23 |JP25 |JP26 |JP29 |JP31|
| type |speed | | | | | | | | |
| | | | | |JP24 | |JP27 |JP30 |JP32|
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80386DX|25MHz |1 & |1 & 2|1 & 2|1 & 2| N/A | N/A |2 & 3|1 & |
| | | 2 | | | | | | | 2 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80386DX|33MHz |7 & |1 & 2|1 & 2|1 & 2| N/A | N/A |2 & 3|1 & |
| | | 8 | | | | | | | 2 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80386DX|40MHz |3 & |1 & 2|1 & 2|1 & 2| N/A | N/A |2 & 3|1 & |
| | | 4 | | | | | | | 2 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80486SX|20MHz |5 & |1 & 2|1 & 2|1 & 2|3 & 4|3 & 4|1 & 2|2 & |
| | | 6 | | | | | | | 3 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80486SX|25MHz |1 & |1 & 2|1 & 2|1 & 2|3 & 4|3 & 4|1 & 2|2 & |
| | | 2 | | | | | | | 3 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80487SX|20MHz |5 & |1 & 2|1 & 2|1 & 2|2 & 3|2 & 3|1 & 2|2 & |
| | | 6 | | | | | | | 3 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80487SX|25MHz |1 & |1 & 2|1 & 2|1 & 2|2 & 3|2 & 3|1 & 2|2 & |
| | | 2 | | | | | | | 3 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80486DX|25MHz |1 & |1 & 2|1 & 2|1 & 2|1 & 2|1 & 2|1 & 2|2 & |
| | | 2 | | | | | | | 3 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80486DX|33MHz |7 & |1 & 2|1 & 2|1 & 2|1 & 2|1 & 2|1 & 2|2 & |
| | | 8 | | | | | | | 3 |
|-------+------+----+-----+-----+-----+-----+-----+-----+----|
|80486DX|50MHz |1 & |1 & 2|2 & 3|2 & 3|1 & 2|1 & 2|1 & 2|2 & |
| | | 2 | | | | | | | 3 |
|------------------------------------------------------------|
|Note: Speeds indicate the external speed of the CPU. Pins |
|designated should be in the closed position. |
+------------------------------------------------------------+