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# UNIDENTIFIED
ALL-IN-ONE 386SX
Processor 80386SX (exact location unknown)
Processor 16/20/25MHz
Speed
Chip Set Intel
Max. Onboard 32MB
DRAM
Cache None
BIOS AMI
Dimensions 254mm x 218mm
I/O Options Floppy drive interface, IDE interface, parallel
port, PS/2 mouse port, serial ports (2)
NPU Options 80387SX (exact location unknown)
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------+-----------+--------------------+----------|
| Reset switch | JP5 pins | Parallel port | JP9 |
| | 1 - 2 | | |
|----------------+-----------+--------------------+----------|
| Turbo switch | JP5 pins | External battery | JP10 |
| | 4 - 5 | | |
|----------------+-----------+--------------------+----------|
| Turbo LED | JP5 pins | PS/2 mouse port | JP11 |
| | 8 - 9 | | |
|----------------+-----------+--------------------+----------|
| Speaker | JP5 pins | IDE interface LED | JP12 |
| | 11 - 14 | | |
|----------------+-----------+--------------------+----------|
| Power LED & | JP5 pins | IDE interface | JP15 |
| keylock | 16 - 20 | | |
|----------------+-----------+--------------------+----------|
| Serial port 1 | JP7 | Floppy drive | JP18 |
| | | interface | |
|----------------+-----------+--------------------+----------|
| Serial port 2 | JP8 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|----------------------------------+--------+----------------|
| ยป | Battery type select internal | JP10 | Closed |
|---+------------------------------+--------+----------------|
| | Battery type select external | JP10 | pins 2 & 3 |
| | | | closed |
|---+------------------------------+--------+----------------|
| | CMOS memory clear | JP10 | pins 3 & 4 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|--------+------------+------------+------------+------------|
| 512KB | (2) 256K x | NONE | NONE | NONE |
| | 9 | | | |
|--------+------------+------------+------------+------------|
| 1MB | (2) 256K x | (2) 256K x | NONE | NONE |
| | 9 | 9 | | |
|--------+------------+------------+------------+------------|
| 1.5MB | (2) 256K x | (2) 256K x | (2) 256K x | NONE |
| | 9 | 9 | 9 | |
|--------+------------+------------+------------+------------|
| 2MB | (2) 256K x | (2) 256K x | (2) 256K x | (2) 256K x |
| | 9 | 9 | 9 | 9 |
|--------+------------+------------+------------+------------|
| 2MB | (2) 1M x 9 | NONE | NONE | NONE |
|--------+------------+------------+------------+------------|
| 3MB | (2) 256K x | (2) 256K x | (2) 1M x 9 | NONE |
| | 9 | 9 | | |
|--------+------------+------------+------------+------------|
| 4MB | (2) 1M x 9 | (2) 1M x 9 | NONE | NONE |
|--------+------------+------------+------------+------------|
| 4.5MB | (2) 1M x 9 | (2) 1M x 9 | (2) 256K x | NONE |
| | | | 9 | |
|--------+------------+------------+------------+------------|
| 5MB | (2) 256K x | (2) 256K x | (2) 1M x 9 | (2) 1M x 9 |
| | 9 | 9 | | |
|--------+------------+------------+------------+------------|
| 6MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | NONE |
|--------+------------+------------+------------+------------|
| 8MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 |
|--------+------------+------------+------------+------------|
| 8MB | (2) 4M x 9 | NONE | NONE | NONE |
|--------+------------+------------+------------+------------|
| 9MB | (2) 256K x | (2) 256K x | (2) 4M x 9 | NONE |
| | 9 | 9 | | |
|--------+------------+------------+------------+------------|
| 10MB | (2) 1M x 9 | (2) 4M x 9 | NONE | NONE |
|--------+------------+------------+------------+------------|
| 12MB | (2) 1M x 9 | (2) 1M x 9 | (2) 4M x 9 | NONE |
|--------+------------+------------+------------+------------|
| 16MB | (2) 4M x 9 | (2) 4M x 9 | NONE | NONE |
|--------+------------+------------+------------+------------|
| 16.5MB | (2) 4M x 9 | (2) 4M x 9 | (2) 256K x | NONE |
| | | | 9 | |
|--------+------------+------------+------------+------------|
| 17MB | (2) 256K x | (2) 256K x | (2) 4M x 9 | (2) 4M x 9 |
| | 9 | 9 | | |
|--------+------------+------------+------------+------------|
| 18MB | (2) 4M x 9 | (2) 4M x 9 | (2) 1M x 9 | NONE |
|--------+------------+------------+------------+------------|
| 20MB | (2) 1M x 9 | (2) 1M x 9 | (2) 4M x 9 | (2) 4M x 9 |
|--------+------------+------------+------------+------------|
| 24MB | (2) 4M x 9 | (2) 4M x 9 | (2) 4M x 9 | NONE |
|--------+------------+------------+------------+------------|
| 32MB | (2) 4M x 9 | (2) 4M x 9 | (2) 4M x 9 | (2) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| IDE CONFIGURATION |
|------------------------------------------------------------|
| Setting | JP19 | JP20 |
|------------------------+-----------------+-----------------|
| IDE interface disabled | Open | Open |
|------------------------+-----------------+-----------------|
| IDE interface enabled | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOPPY CONFIGURATION |
|------------------------------------------------------------|
| Setting | JP21 | JP22 |
|---------------------------+-----------+--------------------|
| Floppy interface disabled | Open | pins 2 & 3 closed |
|---------------------------+-----------+--------------------|
| Floppy interface enabled | Closed | pins 1 & 2 closed |
+------------------------------------------------------------+