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# EVEREX SYSTEMS, INC.
TEMPO 386SX (EV-1863(B))
Processor 80386SX
Processor Speed 25MHz
Chip Set Everex
Max. Onboard DRAM 8MB
Cache None
BIOS Everex
Dimensions 330mm x 218mm
I/O Options None
NPU Options 80387SX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| External battery | BAT | Speaker | J20 |
|------------------+----------+-------------------+----------|
| Turbo switch | J18 | Reset switch | J21 |
|------------------+----------+-------------------+----------|
| Turbo LED | J19 | Power LED & | J22 |
| | | keylock | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+---------+-----------|
| » | ROM wait states select 2 | P5 | Open |
|---+----------------------------------+---------+-----------|
| | ROM wait states select 3 | P5 | Closed |
|---+----------------------------------+---------+-----------|
| » | DRAM read wait states select 0 | P6 | Closed |
|---+----------------------------------+---------+-----------|
| | DRAM read wait state select 1 | P6 | Open |
|---+----------------------------------+---------+-----------|
| » | DRAM write wait states select 0 | P7 | Closed |
|---+----------------------------------+---------+-----------|
| | DRAM write wait state select 1 | P7 | Open |
|---+----------------------------------+---------+-----------|
| » | Shadow RAM disabled | P8 | Closed |
|---+----------------------------------+---------+-----------|
| | Shadow RAM enabled | P8 | 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 | | |
|-------+-------------+------------+------------+------------|
| 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 |
|-------+-------------+------------+------------+------------|
| 4MB | (2) 1M x 9 | (2) 1M x 9 | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 8MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | P2 | P3 | P4 |
|--------------+---------------+--------------+--------------|
| 512KB | Open | Closed | Closed |
|--------------+---------------+--------------+--------------|
| 1MB | Closed | Open | Closed |
|--------------+---------------+--------------+--------------|
| 2MB | Open | Open | Closed |
|--------------+---------------+--------------+--------------|
| 2MB | Open | Closed | Open |
|--------------+---------------+--------------+--------------|
| 4MB | Closed | Open | Open |
|--------------+---------------+--------------+--------------|
| 8MB | Open | Open | Open |
+------------------------------------------------------------+