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# AUSTIN COMPUTER SYSTEMS
3486LE WINSTATION
Processor 80386DX/80486SX/80487SX/80486DX/80486DX2
Processor Speed 20/25/33/40/50(internal)/50/66(internal) MHz
Chip Set OPTI
Max. Onboard DRAM 32MB
SRAM Cache 64/128/256KB
BIOS AMI
Dimensions 310mm x 218mm
I/O Options 32-bit local bus slot
NPU Options 80387DX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Power LED & | J1 | External battery | JP18 |
| keylock | | | |
|-------------------+----------+------------------+----------|
| Speaker | J2 | 32-bit local bus | S1 |
|-------------------+----------+------------------+----------|
| Reset switch | J5 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| | Unused jumper pad | J3 | Open |
|---+----------------------------------+--------+------------|
| | Unused jumper pad | J4 | Open |
|---+----------------------------------+--------+------------|
| » | Monitor type select color | JP17 | Closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | JP17 | Open |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | JP18 | pins 2 & 3 |
| | (Internal Battery) | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory normal operation | JP18 | pins 1 & 4 |
| | (External Battery) | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP18 | pins 3 & 4 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 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 |
|------------------+--------------------+--------------------|
| 20MB | (4) 4M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP6 | JP7 | JP12 | JP13 |
|---------+----------+---------+---------+-------------------|
| 64KB | Open | Open | Open | pins 2 & 3 closed |
|---------+----------+---------+---------+-------------------|
| 128KB | Open | Closed | Closed | pins 1 & 2 closed |
|---------+----------+---------+---------+-------------------|
| 256KB | Closed | Closed | Closed | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Cache | Location | TAG |
|------------+---------------+---------------+---------------|
| 64KB | (8) 8K x 8 | Banks 0 & 1 | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | Bank 0 | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (8) 32K x 8 | Banks 0 & 1 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| CPU | JP1 | JP2 | JP3 | JP4 |JP5 | JP20 | JP21 |JP24 |
|----------+------+-----+-----+-----+----+------+------+-----|
| 80386DX | N/A | N/A |2 & 3| N/A |1 & | Open |Closed|1 & 2|
| PQFP | | | | | 2 | | | |
|----------+------+-----+-----+-----+----+------+------+-----|
| 80486SX | N/A | N/A |1 & 2| N/A |2 & | Open | Open |2 & 3|
| PQFP | | | | | 3 | | | |
|----------+------+-----+-----+-----+----+------+------+-----|
| 80486SX | Open |2 & 3|1 & 2|Open |2 & |Closed|Closed|2 & 3|
| PGA | | | | | 3 | | | |
|----------+------+-----+-----+-----+----+------+------+-----|
| 80487SX |Closed|1 & 2|1 & 2|2 & 3|2 & |Closed|Closed|2 & 3|
| PGA | | | | | 3 | | | |
|----------+------+-----+-----+-----+----+------+------+-----|
| 80486DX |Closed|1 & 2|1 & 2|1 & 2|2 & |Closed|Closed|2 & 3|
| PGA | | | | | 3 | | | |
|----------+------+-----+-----+-----+----+------+------+-----|
| ODP486SX |Closed|1 & 2|1 & 2|2 & 3|2 & |Closed|Closed|2 & 3|
| PGA | | | | | 3 | | | |
|----------+------+-----+-----+-----+----+------+------+-----|
| 80486DX2 |Closed|1 & 2|1 & 2|1 & 2|2 & |Closed|Closed|2 & 3|
| PGA | | | | | 3 | | | |
|------------------------------------------------------------|
|Note:Pins designated should be in the closed postion. |
| |
|The locations of jumpers JP1 and JP2 are unknown. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| CPU |Speed|Type|JP14| JP15 | JP16 | JP22 | JP51 | JP52 |
|---------+-----+----+----+------+------+------+------+------|
| 80486SX |25MHz|PGA |pins| N/A | N/A | N/A |Closed| Open |
| | | |1 & | | | | | |
| | | | 2 | | | | | |
|---------+-----+----+----+------+------+------+------+------|
| 80486DX |25MHz|PGA |pins| N/A | N/A | N/A |Closed| Open |
| | | |1 & | | | | | |
| | | | 2 | | | | | |
|---------+-----+----+----+------+------+------+------+------|
| 80486SX |25MHz|PQFP|pins| Open |Closed| N/A | N/A | N/A |
| | | |1 & | | | | | |
| | | | 2 | | | | | |
|---------+-----+----+----+------+------+------+------+------|
|80486DX2 | 50i |PGA |pins| Open |Closed| N/A | N/A | N/A |
| | MHz | |1 & | | | | | |
| | | | 2 | | | | | |
|---------+-----+----+----+------+------+------+------+------|
|80386/DLC|33MHz|PQFP|pins| N/A | N/A |Closed|Closed| Open |
| | | |2 & | | | | | |
| | | | 3 | | | | | |
|---------+-----+----+----+------+------+------+------+------|
| 80486SX |33MHz|PGA |pins| N/A | N/A | N/A | Open |Closed|
| | | |1 & | | | | | |
| | | | 2 | | | | | |
|---------+-----+----+----+------+------+------+------+------|
| 80486DX |33MHz|PGA |pins| N/A | N/A | N/A | Open |Closed|
| | | |1 & | | | | | |
| | | | 2 | | | | | |
|---------+-----+----+----+------+------+------+------+------|
| 80486SX |33MHz|PQFP|pins|Closed| Open | N/A | N/A | N/A |
| | | |1 & | | | | | |
| | | | 2 | | | | | |
|---------+-----+----+----+------+------+------+------+------|
|80486DX2 | 66i |PGA |pins|Closed| Open | N/A | N/A | N/A |
| | MHz | |1 & | | | | | |
| | | | 2 | | | | | |
|---------+-----+----+----+------+------+------+------+------|
|80386/DLC|40MHz|PQFP|pins| N/A | N/A | Open | Open | Open |
| | | |2 & | | | | | |
| | | | 3 | | | | | |
|---------+-----+----+----+------+------+------+------+------|
| 80486DX |50MHz|PGA |pins| N/A | N/A | N/A |Closed| Open |
| | | |2 & | | | | | |
| | | | 3 | | | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed postion. |
| |
|The locations of jumpers JP15 and JP16 are unknown. |
+------------------------------------------------------------+