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# UNIDENTIFIED
K386SX
Processor 80386SX
Processor Speed 16/20MHz
Chip Set C & T NEAT
Max. Onboard 8MB
DRAM
Cache None
BIOS AMI/Phoenix
Dimensions 330mm x 218mm
I/O Options Parallel port, serial ports (2), floppy drive
interface, IDE interface
NPU Options 80387SX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------------+----------+---------------+----------|
| Serial port 2 | J2 | Turbo LED | J20 |
|----------------------+----------+---------------+----------|
| Serial port 1 | J3 | IDE interface | J22 |
| | | LED | |
|----------------------+----------+---------------+----------|
| Parallel port | J4 | Turbo switch | J23 |
|----------------------+----------+---------------+----------|
| External battery | J11 | Speaker | J25 |
|----------------------+----------+---------------+----------|
| IDE interface | J12 | Reset switch | J28 |
|----------------------+----------+---------------+----------|
| Floppy drive | J13 | Power LED & | J29 |
| interface | | keylock | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|-------------------------------+---------------+------------|
| » | IRQ14 busy when IDE | J19 | pins 1 & 2 |
| | interface is busy | | closed |
|---+---------------------------+---------------+------------|
| | IRQ14 clear when IDE | J19 | pins 2 & 3 |
| | interface is busy | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | J24 | open |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | NPU disabled | J26 | closed |
|---+---------------------------+---------------+------------|
| | NPU enabled | J26 | open |
|---+---------------------------+---------------+------------|
| » | Floppy drive interface | SW1/1 | Off |
| | enabled | | |
|---+---------------------------+---------------+------------|
| | Floppy drive interface | SW1/1 | On |
| | disabled | | |
|---+---------------------------+---------------+------------|
| » | Floppy drive interface | SW1/2 | Off |
| | select primary address | | |
|---+---------------------------+---------------+------------|
| | Floppy drive interface | SW1/2 | On |
| | select secondary address | | |
|---+---------------------------+---------------+------------|
| » | IDE interface select | SW1/3 | Off |
| | primary address | | |
|---+---------------------------+---------------+------------|
| | IDE interface select | SW1/3 | On |
| | secondary address | | |
|---+---------------------------+---------------+------------|
| » | I/O channel ready signal | SW1/4 | Off |
| | (IOCHRDY) disconnected | | |
|---+---------------------------+---------------+------------|
| | I/O channel ready signal | SW1/4 | On |
| | (IOCHRDY) connected | | |
|---+---------------------------+---------------+------------|
| » | IDE interface enabled | SW1/5 | On |
|---+---------------------------+---------------+------------|
| | IDE interface disabled | SW1/ | Off |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | SW1/6 | On |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | CMOS memory normal | SW1/7 | On |
| | operation | | |
|---+---------------------------+---------------+------------|
| | CMOS memory clear | SW1/7 | Off |
|---+---------------------------+---------------+------------|
| » | Monitor type select color | SW1/8 | On |
|---+---------------------------+---------------+------------|
| | Monitor type select | SW1/8 | Off |
| | monochrome | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|-------+-------------+------------+------------+------------|
| 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 |
|-------+-------------+------------+------------+------------|
| 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 |
+------------------------------------------------------------+