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# AMERICAN DIGICOM CORPORATION
486WB
Processor 80486SX/80486DX
Processor Speed 33/50MHz
Chip Set OPTI
Max. Onboard DRAM 32MB
Cache 64/256KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Options 32-bit external memory card slot
NPU Options 4167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| External battery | J10 | 32-bit external | S1 |
| | | memory card | |
|-------------------+----------+------------------+----------|
| Power LED & | J23 | Reset switch | SW1 |
| keylock | | | |
|-------------------+----------+------------------+----------|
| Speaker | J24 | Turbo switch | SW2 |
|-------------------+----------+------------------+----------|
| Turbo LED | JP12 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|------------------------------------+--------+--------------|
| » | Monitor type select color | JP1 | Closed |
|---+--------------------------------+--------+--------------|
| | Monitor type select monochrome | JP1 | Open |
|---+--------------------------------+--------+--------------|
| » | CMOS memory normal operation | JP2 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | CMOS memory clear | JP2 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| » | Bus speed select ATCLK/6 | JP3 | Closed |
|---+--------------------------------+--------+--------------|
| | Bus speed select ATCLK/4 | JP3 | Open |
|---+--------------------------------+--------+--------------|
| » | CPU speed select OSC/2 | JP4 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | CPU speed select OSC/1 | JP4 | pins 1 & 2 |
| | | | 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) 256K 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | U33 (TAG) | U34 (TAG) |
|---------+----------------+----------------+----------------|
| 64KB | (8) 8K x 8 | (1) 64K x 1 | (1) 8K x 8 |
|---------+----------------+----------------+----------------|
| 256KB | (8) 32K x 8 | (1) 64K x 1 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP8 | JP9 | JP10 | JP11 |
|---------+-------------+------------+----------+------------|
| 64KB | Open | Open | Open | Open |
|---------+-------------+------------+----------+------------|
| 256KB | Closed | Closed | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP5 | JP6 | JP7 |
|----------+-------------------+-------------------+---------|
| 80486SX | Open | pins 2 & 3 closed | Open |
|----------+-------------------+-------------------+---------|
| 80486DX | pins 2 & 3 closed | pins 1 & 2 closed | Closed |
+------------------------------------------------------------+