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# PRECISION AMERICA, INC.
BABY-386
Processor 80386DX
Processor Speed 16/20/25MHz
Chip Set C & T
Max. Onboard DRAM 32MB
Cache None
BIOS AMI
Dimensions 330mm x 218mm
I/O Options 32-bit external memory card slot
NPU Options 80287/80387/3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| External battery | J12 | Turbo switch | J39 |
|-------------------+----------+------------------+----------|
| Reset switch | J34 | Turbo LED | J42 |
|-------------------+----------+------------------+----------|
| Power LED & | J37 | 32-bit external | S1 |
| keylock | | memory card | |
|-------------------+----------+------------------+----------|
| Speaker | J38 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | NPU type select 80387 or 3167 | J35 | Closed |
|---+----------------------------------+--------+------------|
| | NPU type select 80287 or none | J35 | Open |
|---+----------------------------------+--------+------------|
| » | Monitor type select color | J36 | Closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | J36 | Open |
|---+----------------------------------+--------+------------|
| » | CPU speed select forced slow | J39 | Closed |
|---+----------------------------------+--------+------------|
| | CPU speed select switchable at | J39 | Open |
| | keyboard | | |
|---+----------------------------------+--------+------------|
| » | NPU enabled (80387 or 3167) | J40 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | NPU enabled (80287) | J40 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | NPU mode select synchronous with | J41 | pins 1 & 2 |
| | CPU | | closed |
|---+----------------------------------+--------+------------|
| | NPU mode select asynchronous | J41 | pins 2 & 3 |
| | with CPU | | closed |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | J44 | Open |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | J44 | 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) 1 M 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 |
+------------------------------------------------------------+