TEXT View Source
# AUSTIN COMPUTER SYSTEMS
486 33VLI
Processor 80486SX/80486DX
Processor Speed 33MHz
Chip Set Symphony
Max. Onboard DRAM 32MB
Cache 64/128/256KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Options None
NPU Options 4167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| Speaker | JP1 | Turbo switch | JP10 |
|---------------------+----------+----------------+----------|
| Reset switch | JP2 | Turbo LED | JP11 |
|---------------------+----------+----------------+----------|
| Power LED & keylock | JP5 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Monitor type select color | JP6 | Closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | JP6 | Open |
|---+----------------------------------+--------+------------|
| » | CPU speed select iOSC/2 | JP27 | Open |
|---+----------------------------------+--------+------------|
| | CPU speed select iOSC/1 | JP27 | Closed |
|---+----------------------------------+--------+------------|
| » | Select 0 wait state | JP32 | Closed |
|---+----------------------------------+--------+------------|
| | Select 1 wait state | JP32 | Open |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP33 | pins 2 & 3 |
| | alter | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 1 | Bank 2 |
|------------------+--------------------+--------------------|
| 1MB | (4) 256K x 9 | NONE |
|------------------+--------------------+--------------------|
| 2MB | (4) 256K x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 4MB | (4) 1M x 9 | NONE |
|------------------+--------------------+--------------------|
| 5MB | (4) 256K x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 17MB | (4) 256K x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 20MB | (4) 1M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 32MB | (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 | JP22 | JP23 | JP24 | JP25 | JP26 | JP28 | JP34 |
|-------+------+------+------+------+--------+--------+------|
| 64KB | 1 & | 1 & | 1 & | 1 & | Open | Closed | 1 & |
| | 2 | 2 | 2 | 2 | | | 2 |
|-------+------+------+------+------+--------+--------+------|
| 128KB | 2 & | 1 & | 1 & | 1 & | Closed | Open | Open |
| | 3 | 2 | 2 | 2 | | | |
|-------+------+------+------+------+--------+--------+------|
| 256KB | 2 & | 2 & | 1 & | 1 & | Open | Closed | 2 & |
| | 3 | 3 | 2 | 2 | | | 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | JP35 | JP36 | JP37 | JP38 | JP39 |JP40 | JP41 |JP42 |
|------+------+------+------+------+------+-----+------+-----|
| 64KB |2 & 3 |2 & 3 |2 & 3 | Open |2 & 3 |2 & 3| Open |2 & 3|
|------+------+------+------+------+------+-----+------+-----|
|128KB |1 & 2 |1 & 2 |1 & 2 |Closed| Open |1 & 2|Closed|2 & 3|
|------+------+------+------+------+------+-----+------+-----|
|256KB |2 & 3 |2 & 3 |2 & 3 | Open |2 & 3 |2 & 3| Open |2 & 3|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP12 | JP13 | JP14 |
|--------------+------------+-------------------+------------|
| 80486SX | Open | pins 2 & 3 closed | Open |
|--------------+------------+-------------------+------------|
| 80486DX | Closed | pins 1 & 2 closed | Closed |
+------------------------------------------------------------+