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# EVEREX SYSTEMS, INC.
AGI 386-20 EV-1830B
Processor 80386DX
Processor 20MHz
Speed
Chip Set C & T
Max. Onboard 1MB
DRAM
Cache None
BIOS AMI
Dimensions 355mm x 304mm
I/O Options 32-bit external memory cards (2), parallel port,
serial ports (2)
NPU Options 80387DX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| External battery | CN1 | Parallel port | J8 |
|-------------------+----------+------------------+----------|
| Turbo LED | J3 | Serial port 1 | J9 |
|-------------------+----------+------------------+----------|
| Power LED & | J4 | Serial port 2 | J10 |
| keylock | | | |
|-------------------+----------+------------------+----------|
| Speaker | J5 | 32-bit external | S1 |
| | | memory card | |
|-------------------+----------+------------------+----------|
| Reset switch | J6 | 32-bit external | S2 |
| | | memory card | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Monitor select color | C/M | Closed |
|---+----------------------------------+--------+------------|
| | Monitor select monochrome | C/M | Open |
|---+----------------------------------+--------+------------|
| » | 8-bit cycle bus select 5 wait | W1 | pins 1 & 2 |
| | state | | closed |
|---+----------------------------------+--------+------------|
| | 8-bit cycle bus select 4 wait | W1 | pins 2 & 3 |
| | state | | closed |
|---+----------------------------------+--------+------------|
| » | 16-bit cycle bus select 2 wait | W2 | pins 2 & 3 |
| | state | | closed |
|---+----------------------------------+--------+------------|
| | 16-bit cycle bus select 1 wait | W2 | pins 1 & 2 |
| | state | | closed |
+------------------------------------------------------------+
IMG IMG 2
Memory card
+------------------------------------------------------------+
| DRAM CONFIGURATION 1 CARD |
|------------------------------------------------------------|
| System | Total | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
| memory | memory | | | | |
|----------+----------+---------+--------+---------+---------|
| 1MB | 1MB | (18) | (18) | NONE | NONE |
| | | 41256 | 41256 | | |
|----------+----------+---------+--------+---------+---------|
| 1MB | 2MB | (18) | (18) | (36) | NONE |
| | | 41256 | 41256 | 41256 | |
|----------+----------+---------+--------+---------+---------|
| 1MB | 3MB | (18) | (18) | (36) | (36) |
| | | 41256 | 41256 | 41256 | 41256 |
|----------+----------+---------+--------+---------+---------|
| 1MB | 5MB | (18) | (18) | (36) | NONE |
| | | 41256 | 41256 | 411000 | |
|----------+----------+---------+--------+---------+---------|
| 1MB | 9MB | (18) | (18) | (36) | (36) |
| | | 41256 | 41256 | 411000 | 411000 |
|------------------------------------------------------------|
| Note:Banks 2 & 3 are located on the external memory card. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION 2 CARDS |
|------------------------------------------------------------|
| External | Card | Card | Card | Card |
| memory | 1/Bank 2 | 1/Bank 3 | 2/Bank 2 | 2/Bank 3 |
|------------+-----------+-----------+-----------+-----------|
| 3MB | (36) | (36) | (36) | NONE |
| | 41256 | 41256 | 41256 | |
|------------+-----------+-----------+-----------+-----------|
| 4MB | (36) | (36) | (36) | (36) |
| | 41256 | 41256 | 41256 | 41256 |
|------------+-----------+-----------+-----------+-----------|
| 6MB | (36) | (36) | (36) | NONE |
| | 41256 | 41256 | 411000 | |
|------------+-----------+-----------+-----------+-----------|
| 10MB | (36) | (36) | (36) | (36) |
| | 41256 | 41256 | 411000 | 411000 |
|------------+-----------+-----------+-----------+-----------|
| 12MB | (36) | (36) | (36) | NONE |
| | 411000 | 411000 | 411000 | |
|------------+-----------+-----------+-----------+-----------|
| 16MB | (36) | (36) | (36) | (36) |
| | 411000 | 411000 | 411000 | 411000 |
|------------------------------------------------------------|
| Note:Total memory includes system memory and external |
| memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| System | External | SW1/1 | SW1/2 | SW1/3 | SW1/4 |
| memory | memory | | | | |
|-------------+--------------+-------+-------+-------+-------|
| 1MB | 0MB | On | On | On | On |
|-------------+--------------+-------+-------+-------+-------|
| 1MB | 4MB | Off | On | On | On |
|-------------+--------------+-------+-------+-------+-------|
| 1MB | 8MB | Off | Off | On | On |
|-------------+--------------+-------+-------+-------+-------|
| 1MB | 14MB | Off | Off | Off | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION 1 CARD |
|------------------------------------------------------------|
| System memory | External | W1/1 | W1/2 | W1/3 | W1/4 |
| | memory | | | | |
|----------------+---------------+------+------+------+------|
| 1MB | 1MB | On | On | On | On |
|----------------+---------------+------+------+------+------|
| 1MB | 2MB | On | On | On | Off |
|----------------+---------------+------+------+------+------|
| 1MB | 4MB | Off | On | On | On |
|----------------+---------------+------+------+------+------|
| 1MB | 8MB | Off | On | On | Off |
|------------------------------------------------------------|
| Note:Switch W1 is located on the external memory card. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION 2 CARDS |
|------------------------------------------------------------|
| System | External | W1/1 | W1/2 | W1/3 | W1/4 | W2 |
| memory | memory | | | | | |
|----------+------------+------+------+------+------+--------|
| 1MB | 3MB | Off | On | Off | Off | pins 2 |
| | | | | | | & 3 |
|----------+------------+------+------+------+------+--------|
| 1MB | 4MB | Off | On | Off | On | pins 2 |
| | | | | | | & 3 |
|----------+------------+------+------+------+------+--------|
| 1MB | 6MB | On | On | Off | Off | pins 2 |
| | | | | | | & 3 |
|----------+------------+------+------+------+------+--------|
| 1MB | 10MB | On | On | Off | On | pins 1 |
| | | | | | | & 2 |
|----------+------------+------+------+------+------+--------|
| 1MB | 12MB | On | On | Off | Off | pins 1 |
| | | | | | | & 2 |
|----------+------------+------+------+------+------+--------|
| 1MB | 16MB | Off | Off | On | On | pins 1 |
| | | | | | | & 2 |
|------------------------------------------------------------|
| Note:Switch W1 and jumper W2 are located on the external |
| memory card. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT CONFIGURATION |
|------------------------------------------------------------|
| Port 1 | Port 2 | SW2/1 | SW2/2 | SW3/1 | SW3/2 |
|--------------+----------+--------+--------+--------+-------|
| » | COM1 | COM2 | Off | Off | On | On |
|---+----------+----------+--------+--------+--------+-------|
| | COM1 | Disabled | Off | On | On | Off |
|---+----------+----------+--------+--------+--------+-------|
| | Disabled | COM2 | On | Off | Off | On |
|---+----------+----------+--------+--------+--------+-------|
| | Disabled | Disabled | On | On | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT CONFIGURATION |
|------------------------------------------------------------|
| LPT | Address | IRQ | SW2/3 | SW2/4 | SW3/3 |SW3/4 |
|------------+----------+-----+-------+-------+-------+------|
|»| 2 | 378-37Fh | 7 | Off | Off | Off | On |
|-+----------+----------+-----+-------+-------+-------+------|
| | 3 | 278-27Fh | 5 | Off | On | On | Off |
|-+----------+----------+-----+-------+-------+-------+------|
| | Disabled | N/A | N/A | On | On | Off | Off |
+------------------------------------------------------------+