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# UNIDENTIFIED
SCAMP 386SX
Processor 80386SX/CX486SLC (exact location unidentified)
Processor Speed 16/20/25/33MHz
Chip Set VLSI
Max. Onboard 16MB
DRAM
Cache None
BIOS Unidentified
Dimensions 218mm x 168mm
I/O Options None
NPU Options 80387SX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| Speaker | CN1 | Turbo switch | JP6 |
|---------------------+----------+----------------+----------|
| External battery | CN2 | Turbo LED | JP8 |
|---------------------+----------+----------------+----------|
| Power LED & keylock | CN3 | Reset switch | JP14 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | CMOS memory normal operation | HDR1 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | HDR1 | pins 3 & 4 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Pipeline mode disabled | JP1 | Open |
|---+----------------------------------+--------+------------|
| | Pipeline mode enabled | JP1 | Closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | JP4 | Open |
|---+----------------------------------+--------+------------|
| | Monitor type select color | JP4 | Closed |
|---+----------------------------------+--------+------------|
| » | Keyboard matching select normal | JP5 | Open |
| | operation | | |
|---+----------------------------------+--------+------------|
| | Keyboard matching select | JP5 | Closed |
| | keyboard error during boot-up | | |
|---+----------------------------------+--------+------------|
| | CPU clock speed select software | JP7 | pins 1 & 2 |
| | turbo | | closed |
|---+----------------------------------+--------+------------|
| | CPU clock speed select hardware | JP7 | pins 2 & 3 |
| | turbo | | closed |
|---+----------------------------------+--------+------------|
| | NPU clock select CPU clock speed | JP11 | Open |
|---+----------------------------------+--------+------------|
| | NPU clock select NPU clock speed | JP11 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 512KB | (2) 256K x 9 | NONE |
|------------------+--------------------+--------------------|
| 1MB | (2) 256K x 9 | (2) 256K x 9 |
|------------------+--------------------+--------------------|
| 2MB | (2) 1M x 9 | NONE |
|------------------+--------------------+--------------------|
| 2.5MB | (2) 1M x 9 | (2) 256K x 9 |
|------------------+--------------------+--------------------|
| 2.5MB | (2) 256K x 9 | (2) 1M x 9 |
|------------------+--------------------+--------------------|
| 4MB | (2) 1M x 9 | (2) 1M x 9 |
|------------------+--------------------+--------------------|
| 8MB | (2) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 16MB | (2) 4M x 9 | (2) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP2 |
|--------------------------------+---------------------------|
| 16MHz | Open |
|--------------------------------+---------------------------|
| 20MHz | Open |
|--------------------------------+---------------------------|
| 25MHz | Open |
|--------------------------------+---------------------------|
| 33MHz | Closed |
|------------------------------------------------------------|
| Note: If CPU speed is 16MHz or 20MHz, set Fast Clock |
| Divider in Advanced CMOS Setup to 4. |
+------------------------------------------------------------+