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# MICROMEDIA TECHNOLOGIES, INC.
386-U
Processor 80386DX/CX486DLC
Processor Speed 33/40MHz
Chip Set UMC
Max. Onboard DRAM 32MB
Cache 64/128/256KB
BIOS AMI
Dimensions 220mm x 220mm
I/O Options None
NPU Options 80387DX/3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| Speaker | W1 | Turbo switch | W4 |
|---------------------+----------+----------------+----------|
| Power LED & keylock | W2 | Turbo LED | W5 |
|---------------------+----------+----------------+----------|
| Reset switch | W3 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Factory configured - do not | W9 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | W10 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | W11 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | W11 | pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 3 |
|------------------+--------------------+--------------------|
| 1MB | (4) 256K x 9 | NONE |
|------------------+--------------------+--------------------|
| 2MB | (4) 256K x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 4MB | (4) 1M x 9 | NONE |
|------------------+--------------------+--------------------|
| 5MB | (4) 1M x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 1M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | WC1 | WC2 | WC3 | WC4 | WC5 |
|-------+------------+--------+--------+----------+----------|
| 64KB | pins 2 & 3 | Open | Open | pins 1 & | pins 1 & |
| | | | | 2 | 2 |
|-------+------------+--------+--------+----------+----------|
| 128KB | pins 1 & 2 | Open | Closed | pins 1 & | pins 2 & |
| | | | | 2 | 3 |
|-------+------------+--------+--------+----------+----------|
| 256KB | pins 2 & 3 | Closed | Closed | pins 2 & | pins 2 & |
| | | | | 3 | 3 |
|------------------------------------------------------------|
| Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| NPU CONFIGURATION |
|------------------------------------------------------------|
| NPU | Mode | JP101 | JP102 | W6 | W7 |
|----------+---------+--------+------------+--------+--------|
| Enabled | Sync. | Open | pins 2 & 3 | Closed | Closed |
|----------+---------+--------+------------+--------+--------|
| Disabled | Async. | Closed | pins 1 & 2 | Open | Open |
|------------------------------------------------------------|
| Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+