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# UNIDENTIFIED
OPTI 386-25/386-33
Processor 80386DX (Exact location is unknown)
Processor Speed 25/33MHz
Chip Set OPTi
Max. Onboard DRAM 8MB
Cache None
BIOS AMI
Dimensions 330mm x 218mm
I/O Options 32-bit external memory card
NPU Options 80387DX/3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| Turbo LED | CR4 | Power LED & | J23 |
| | | keylock | |
|------------------+----------+-------------------+----------|
| External battery | J10 | Reset switch | SW1 |
|------------------+----------+-------------------+----------|
| Speaker | J22 | Turbo switch | SW2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+---------+-----------|
| ยป | Monitor type select color | JP1 | Closed |
|---+----------------------------------+---------+-----------|
| | Monitor type select monochrome | JP1 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|--------+------------+-----------+-------------+------------|
| 1MB | (4) 256K x | NONE | NONE | NONE |
| | 9 | | | |
|--------+------------+-----------+-------------+------------|
| 2MB | (4) 256K x | (4) 256K | NONE | NONE |
| | 9 | x 9 | | |
|--------+------------+-----------+-------------+------------|
| 3MB | (4) 256K x | (4) 256K | (36) 41256 | NONE |
| | 9 | x 9 | | |
|--------+------------+-----------+-------------+------------|
| 4MB | (4) 256K x | (4) 256K | (36) 41256 | (36) 41256 |
| | 9 | x 9 | | |
|--------+------------+-----------+-------------+------------|
| 4MB | (4) 1M x 9 | NONE | NONE | NONE |
|--------+------------+-----------+-------------+------------|
| 5MB | (4) 256K x | (4) 1M x | NONE | NONE |
| | 9 | 9 | | |
|--------+------------+-----------+-------------+------------|
| 8MB | (4) 1M x 9 | NONE | (36) 411000 | NONE |
|--------+------------+-----------+-------------+------------|
| 8MB | (4) 1M x 9 | (4) 1M x | NONE | NONE |
| | | 9 | | |
|--------+------------+-----------+-------------+------------|
| 16MB | (4) 1M x 9 | (4) 1M x | (36) 411000 | (36) |
| | | 9 | | 411000 |
|------------------------------------------------------------|
| Note:The locations of Bank 2 & Bank 3 can be found on the |
| external memory card. |
+------------------------------------------------------------+
IMG IMG 2