TEXT View Source
# EFA CORPORATION
3486UC-L4-U3
Processor 80386DX/80486SX/80486DX
Processor Speed 16/20/25/33/40/50(internal)/50MHz
Chip Set UMC
Max. Onboard DRAM 32MB
Cache 64/128/256KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Options None
NPU Options 4167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| Speaker | J2 | Turbo LED | J16 |
|------------------+----------+-------------------+----------|
| External battery | J4 | Power LED & | J18 |
| | | keylock | |
|------------------+----------+-------------------+----------|
| Reset switch | J15 | Speaker | J19 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|------------------------------------+--------+--------------|
| » | Monitor type select color | J9 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | Monitor type select monochrome | J9 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| » | Turbo switch enabled | J17 | Open |
|---+--------------------------------+--------+--------------|
| | Turbo switch normal operation | J17 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|-----------+----------------+----------------+--------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
|-----------+----------------+----------------+--------------|
| 128KB | (4) 32K x 8 | NONE | (1) 32K x 8 |
|-----------+----------------+----------------+--------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J1 | J2 | J3 | J13 | J14 |
|-------+------------+----------+----------+--------+--------|
| 64KB | pins 2 & 3 | pins 1 & | pins 1 & | pins 1 | N/A |
| | | 2 | 2 | & 2 | |
|-------+------------+----------+----------+--------+--------|
| 128KB | pins 2 & 3 | pins 2 & | pins 1 & | pins 2 | pins 1 |
| | | 3 | 2 | & 3 | & 2 |
|-------+------------+----------+----------+--------+--------|
| 256KB | pins 2 & 3 | pins 2 & | pins 2 & | pins 1 | pins 2 |
| | | 3 | 3 | & 2 | & 3 |
|------------------------------------------------------------|
| Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type |SW1/switch 1|SW1/switch 2|SW1/switch 3|SW1/switch 4|
|--------+------------+------------+------------+------------|
|80386DX | On | On | Off | Off |
|--------+------------+------------+------------+------------|
|80486SX | Off | Off | On | On |
|--------+------------+------------+------------+------------|
|80486DX | On | On | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CONT.) |
|------------------------------------------------------------|
| Type |SW2/1 |SW2/2 |SW2/3 |SW2/4 |SW2/5 |SW2/6|SW2/7|SW2/8|
|-------+------+------+------+------+------+-----+-----+-----|
|80386DX| On | On | On | On | Off | Off | On | On |
|-------+------+------+------+------+------+-----+-----+-----|
|80486SX| Off | Off | Off | Off | On | On | On | Off |
|-------+------+------+------+------+------+-----+-----+-----|
|80486DX| Off | Off | Off | Off | On | On | On | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | SW3/switch | SW3/switch | SW3/switch | SW3/switch |
| | 1 | 2 | 3 | 4 |
|-------+-------------+------------+------------+------------|
| 16MHz | On | Off | On | On |
|-------+-------------+------------+------------+------------|
| 20MHz | On | Off | On | Off |
|-------+-------------+------------+------------+------------|
| 25MHz | On | Off | Off | Off |
|-------+-------------+------------+------------+------------|
| 33MHz | On | Off | Off | On |
|-------+-------------+------------+------------+------------|
| 40MHz | Off | On | Off | On |
|-------+-------------+------------+------------+------------|
| 50i | On | Off | Off | Off |
| MHz | | | | |
|-------+-------------+------------+------------+------------|
| 50MHz | Off | On | Off | Off |
+------------------------------------------------------------+