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# FRONTIER INDUSTRIAL, INC.
CT 386 SX
Processor 80386SX
Processor Speed 20/25MHz
Chip Set VLSI
Max. Onboard DRAM 16MB
Cache None
BIOS AMI
Dimensions 220mm x 220mm
I/O Options None
NPU Options 80387SX
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| Speaker | J5 | Power LED & | J10 |
| | | Keylock | |
|------------------+----------+-------------------+----------|
| Turbo LED | J6 | Turbo switch | SW1 |
|------------------+----------+-------------------+----------|
| External battery | J8 | Reset switch | SW2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+---------+-----------|
| | Monitor type select color | JP11 | Closed |
|---+----------------------------------+---------+-----------|
| | Monitor type select monochrome | JP11 | Open |
|---+----------------------------------+---------+-----------|
| ยป | Parity check enabled | JP90 | Closed |
|---+----------------------------------+---------+-----------|
| | Parity check disabled | JP90 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|-------+-------------+------------+------------+------------|
| 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 |
|-------+-------------+------------+------------+------------|
| 12MB | (2) 1M x 9 | (2) 4M x 9 | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 16MB | (2) 4M x 9 | NONE | NONE | NONE |
+------------------------------------------------------------+