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# MICRO EXPRESS, INC.
80386-33/40
Processor 80386DX
Processor Speed 33/40MHz
Chip Set FOREX
Max. Onboard DRAM 32MB
Cache 64/128/256KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Options None
NPU Options 80387/3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| External battery | JP4 | Turbo switch | JP12 |
|---------------------+----------+----------------+----------|
| Reset switch | JP10 | Speaker | JP13 |
|---------------------+----------+----------------+----------|
| Power LED & keylock | JP11 | Turbo LED | JP14 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|----------------------------------------+--------+----------|
| » | Factory configured - do not alter | EM11 | Open |
|---+------------------------------------+--------+----------|
| » | Factory configured - do not alter | EM12 | Open |
|---+------------------------------------+--------+----------|
| » | Battery type select external | JP3 | Open |
| | 6.0VDC | | |
|---+------------------------------------+--------+----------|
| | Battery type select external | JP3 | Closed |
| | 3.6VDC | | |
|---+------------------------------------+--------+----------|
| » | CMOS memory normal operation | JP5 | Open |
|---+------------------------------------+--------+----------|
| | CMOS memory clear | JP5 | Closed |
|---+------------------------------------+--------+----------|
| » | Monitor type select color | JP8 | Open |
|---+------------------------------------+--------+----------|
| | Monitor type select monochrome | JP8 | Closed |
|---+------------------------------------+--------+----------|
| » | Factory configured - do not alter | JP9 | Open |
|---+------------------------------------+--------+----------|
| » | Factory configured - do not alter | JP101 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 1MB | (4) 256K x 9 | NONE |
|------------------+--------------------+--------------------|
| 2MB | (4) 256K x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 4MB | (4) 1M x 9 | NONE |
|------------------+--------------------+--------------------|
| 5MB | (4) 256K x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 20MB | (4) 1M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG (U38) | TAG (U39) |
|-------+-------------+------------+------------+------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 | NONE |
|-------+-------------+------------+------------+------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 | NONE |
|-------+-------------+------------+------------+------------|
| 256KB | (4) 32K x 8 | (4) 32K x | (1) 8K x 8 | (1) 8K x 8 |
| | | 8 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP6 | JP61 | JP62 |
|-------+-----------------+-----------------+----------------|
| 64KB | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|-------+-----------------+-----------------+----------------|
| 128KB | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|-------+-----------------+-----------------+----------------|
| 256KB | pins 1 & 2 | pins 2 & 3 | pins 2 & 3 |
| | closed | closed | closed |
+------------------------------------------------------------+