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# GCH SYSTEMS, INC.
EASY DATA 386SX
Processor 80386SX
Processor Speed 16MHz
Chip Set Suntac
Max. Onboard 8MB
DRAM
Cache None
BIOS AMI/Award/Phoenix
Dimensions 330mm x 218mm
I/O Options Parallel port, serial port (2), floppy
interface, IDE interface
NPU Options 80387SX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-----------------+----------+--------------------+----------|
| Reset switch | J1 | Parallel port | P1 |
| | | (LPT2) | |
|-----------------+----------+--------------------+----------|
| Turbo LED | J2 | Serial port (COM1) | S1 |
|-----------------+----------+--------------------+----------|
| Turbo switch | J3 | Serial port (COM2) | S2 |
|-----------------+----------+--------------------+----------|
| Hard drive LED | J4 | IDE interface | S3 |
|-----------------+----------+--------------------+----------|
| Speaker | J5 | Floppy interface | S4 |
|-----------------+----------+--------------------+----------|
| Power LED & | J6 | | |
| keylock | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|-------------------------------+---------------+------------|
| » | Factory configured - do | JP1 | Open |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | JP3 | N/A |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | BIOS type select Award | JP7 | pins 2 & 3 |
| | | | closed |
|---+---------------------------+---------------+------------|
| | BIOS type select Phoenix | JP7 | pins 1 & 2 |
| | | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | JP11 | Closed |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Monitor type select color | SW1/1 | On |
|---+---------------------------+---------------+------------|
| | Monitor type select | SW1/1 | Off |
| | monochrome | | |
|---+---------------------------+---------------+------------|
| » | Floppy drive enabled | SW1/2 | On |
|---+---------------------------+---------------+------------|
| | Floppy drive disabled | SW1/2 | Off |
|---+---------------------------+---------------+------------|
| » | Floppy drive address | SW1/3 | Off |
| | select primary | | |
|---+---------------------------+---------------+------------|
| | Floppy drive address | SW1/3 | On |
| | select secondary | | |
|---+---------------------------+---------------+------------|
| » | COM1 (S1) enabled | SW1/6 | On |
|---+---------------------------+---------------+------------|
| | COM1 (S1) disabled | SW1/6 | Off |
|---+---------------------------+---------------+------------|
| » | COM2 (S2) enabled | SW1/7 | On |
|---+---------------------------+---------------+------------|
| | COM2 (S2) disabled | SW1/7 | Off |
|---+---------------------------+---------------+------------|
| » | LPT2 (P1) enabled | SW1/8 | On |
|---+---------------------------+---------------+------------|
| | LPT2 (P1) disabled | SW1/8 | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 | | |
|-------+-------------+------------+------------+------------|
| 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 | | |
|-------+-------------+------------+------------+------------|
| 8MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| NPU MODE CONFIGURATION |
|------------------------------------------------------------|
| Size | JP2 | JP4 |
|--------------------+-------------------+-------------------|
| Synchronous with | pins 2 & 3 closed | pins 2 & 3 closed |
| CPU | | |
|--------------------+-------------------+-------------------|
| Asynchronous with | pins 1 & 2 closed | pins 1 & 2 closed |
| CPU | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ON BOARD IDE CONFIGURATION |
|------------------------------------------------------------|
| Size | SW1/4 | SW1/5 |
|--------------------+--------------------+------------------|
| Enabled | Off | On |
|--------------------+--------------------+------------------|
| Disabled | On | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS CONFIGURATION |
|------------------------------------------------------------|
| Size | JP5 | JP6 |
|------------------+--------------------+--------------------|
| 27256 | pins 1 & 2 closed | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 27512 | pins 2 & 3 closed | pins 2 & 3 closed |
+------------------------------------------------------------+