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# EVEREX SYSTEMS, INC.
TEMPO 386SX/20C EV-8048
Processor 80386SX
Processor Speed 20MHz
Chip Set Suntac
Max. Onboard 8MB
DRAM
Cache None
BIOS AMI
Dimensions 330mm x 218mm
I/O Options Floppy drive interface, IDE interface,
parallel port, serial port (2), VGA feature
connector, VGA port
NPU Options 80387SX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------+----------+---------------------+----------|
| IDE interface | CN1 | Serial port (COM2) | CN6 |
|----------------+----------+---------------------+----------|
| Floppy drive | CN2 | Parallel port | CN7 |
| interface | | | |
|----------------+----------+---------------------+----------|
| VGA feature | CN3 | IDE interface LED | JP3 |
| connector | | | |
|----------------+----------+---------------------+----------|
| VGA port | CN4 | Front panel switch | JP6 |
| | | & lighting | |
| | | interface | |
|----------------+----------+---------------------+----------|
| Serial port | CN5 | Riser card | R1 |
| (COM1) | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|------------------------------------+----------+------------|
| » | Onboard VGA port enabled | JP5 | Closed |
|-----+------------------------------+----------+------------|
| | Onboard VGA port disabled | JP5 | Open |
|------------------------------------------------------------|
| Note:The onboard VGA port must be disabled in order to use |
| an external monochrome video card. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 | | |
|-------+-------------+------------+------------+------------|
| 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 CONFIGURATION |
|------------------------------------------------------------|
| COM1 | JP1 |
|---------+--------------------------------------------------|
| » | DCE | pins 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, and 11 |
| | | & 12 closed |
|---+-----+--------------------------------------------------|
| | DTE | pins 1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, and 6 |
| | | & 7 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 CONFIGURATION |
|------------------------------------------------------------|
| COM2 | JP2 |
|---------+--------------------------------------------------|
| » | DCE | pins 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, and 11 |
| | | & 12 closed |
|---+-----+--------------------------------------------------|
| | DTE | pins 1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, and 6 |
| | | & 7 closed |
+------------------------------------------------------------+