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# ATRONICS INTERNATIONAL, INC.
ATI-386/B2
Processor 80386DX
Processor Speed 25/33/40MHz
Chip Set SIS
Max. Onboard DRAM 32MB
Cache 32/64/128KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Options 32-bit external memory card slot
NPU Options 80387/3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Power LED & | JP2 | Speaker | LS1 |
| keylock | | | |
|-------------------+----------+------------------+----------|
| External battery | JP21 | 32-bit external | S1 |
| | | memory card | |
|-------------------+----------+------------------+----------|
| Turbo switch | JP25 | Reset switch | SW1 |
|-------------------+----------+------------------+----------|
| Turbo LED | JP26 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Factory configured - do not | J1 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J2 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Monitor type select color | JP7 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | JP7 | pins 2 & 3 |
| | | | 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) 1M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG (U107) | TAG (U112) |
|-------+-------------+------------+------------+------------|
| 32KB | (4) 8K x 8 | NONE | (1) 8K x 8 | NONE |
|-------+-------------+------------+------------+------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 | (1) 8K x 8 |
|-------+-------------+------------+------------+------------|
| 128KB | (4) 32K x 8 | NONE | (1) 32K x | NONE |
| | | | 8 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP16 |
|----------------------------+-------------------------------|
| 32KB | pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 64KB | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 128KB | pins 1 & 2 closed |
+------------------------------------------------------------+