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# UNIDENTIFIED
386-20/25
Processor 80386SX (exact location unidentified)
Processor Speed 20/25MHz
Chip Set Unidentified
Maximum Onboard Memory 10MB (on external memory card)
Cache None
BIOS Unidentified
Dimensions 228mm x 220mm
I/O Options External memory card
NPU Options 80387SX (exact location unidentified)
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|---------------------+-------+----------------------+-------|
| External battery | X1 | Turbo LED | x8 |
|---------------------+-------+----------------------+-------|
| Reset switch | X4 | Speaker | X17 |
|---------------------+-------+----------------------+-------|
| Status port | X5 | Turbo switch | X22 |
|---------------------+-------+----------------------+-------|
| Power LED & keylock | x6 | External memory card | SL1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|---------------------------------------+-------+------------|
| » | Speed select through keyboard | S1 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Speed select through turbo switch | S1 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | I/O slot wait state select 4 wait | S2 | Pins 1 & 2 |
| | states | | closed |
|---+-----------------------------------+-------+------------|
| | I/O slot wait state select 6 wait | S2 | Pins 2 & 3 |
| | states | | closed |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | S5 | N/A |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | SW1/1 | N/A |
|---+-----------------------------------+-------+------------|
| » | NPU disabled | SW1/2 | Off |
|---+-----------------------------------+-------+------------|
| | NPU enabled | SW1/2 | On |
|---+-----------------------------------+-------+------------|
| » | Floppy drive speed does not | SW1/3 | Off |
| | affect CPU speed | | |
|---+-----------------------------------+-------+------------|
| | Floppy drive speed at CPU speed | SW1/3 | On |
| | 8MHz | | |
|---+-----------------------------------+-------+------------|
| » | Monitor type select monochrome | SW1/4 | Off |
|---+-----------------------------------+-------+------------|
| | Monitor type select color | SW1/4 | On |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | X23 | N/A |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|---------+------------+-----------+-----------+-------------|
| 1MB | 1MB kit | None | None | None |
|---------+------------+-----------+-----------+-------------|
| 1MB | 1MB kit | None | None | None |
|---------+------------+-----------+-----------+-------------|
| 2MB | 1MB kit | None | 1MB kit | None |
|---------+------------+-----------+-----------+-------------|
| 2MB | 1MB kit | None | 1MB kit | None |
|---------+------------+-----------+-----------+-------------|
| 4MB | None | 4MB kit | None | None |
|---------+------------+-----------+-----------+-------------|
| 5MB | 1MB kit | 4MB kit | None | None |
|---------+------------+-----------+-----------+-------------|
| 6MB | 1MB kit | 4MB kit | 1MB kit | None |
|---------+------------+-----------+-----------+-------------|
| 6MB | 1MB kit | 4MB kit | 1MB kit | None |
|---------+------------+-----------+-----------+-------------|
| 8MB | None | 4MB kit | None | 4MB module |
|---------+------------+-----------+-----------+-------------|
| 9MB | 1MB kit | 4MB kit | None | 4MB module |
|---------+------------+-----------+-----------+-------------|
| 10MB | 1MB kit | 4MB kit | 1MB kit | 4MB module |
|---------+------------+-----------+-----------+-------------|
| 10MB | 1MB kit | 4MB kit | 1MB kit | 4MB module |
|------------------------------------------------------------|
| Note: Banks are located on the external memory card. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM SWITCH |
|------------------------------------------------------------|
| Size | SW1/5 | SW1/6 | SW1/7 | SW1/8 |
|-----------+------------+-----------+-----------+-----------|
| 1MB | On | On | On | On |
|-----------+------------+-----------+-----------+-----------|
| 1MB | On | On | On | Off |
|-----------+------------+-----------+-----------+-----------|
| 2MB | On | On | Off | On |
|-----------+------------+-----------+-----------+-----------|
| 2MB | On | On | Off | Off |
|-----------+------------+-----------+-----------+-----------|
| 4MB | On | Off | On | On |
|-----------+------------+-----------+-----------+-----------|
| 5MB | On | Off | On | Off |
|-----------+------------+-----------+-----------+-----------|
| 6MB | On | Off | Off | On |
|-----------+------------+-----------+-----------+-----------|
| 6MB | On | Off | Off | Off |
|-----------+------------+-----------+-----------+-----------|
| 8MB | Off | On | On | On |
|-----------+------------+-----------+-----------+-----------|
| 9MB | Off | On | On | Off |
|-----------+------------+-----------+-----------+-----------|
| 10MB | Off | On | Off | On |
|-----------+------------+-----------+-----------+-----------|
| 10MB | Off | On | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS |
|------------------------------------------------------------|
| Setting | S3 | S4 |
|------------------+--------------------+--------------------|
| 27128 | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 27256 | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 27512 | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS TECHNICAL NOTE |
|------------------------------------------------------------|
| The location of pin 1 on all jumpers and the switch is |
| unidentified. |
+------------------------------------------------------------+