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# EFA CORPORATION
ECA 510
Processor 80386DX/80486SX/80486DX
Processor Speed 16/20/25/33/40/50MHz
Chip Set UMC
Max. Onboard DRAM 32MB
Cache 64/128/256KB
BIOS AMI
Dimensions 280mm x 218mm
I/O Options None
NPU Options 4167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| External battery | J4 | Power LED & | J18 |
| | | keylock | |
|------------------+----------+-------------------+----------|
| Reset switch | J15 | Speaker | J19 |
|------------------+----------+-------------------+----------|
| Turbo LED | J16 | Riser card | R1 |
|------------------+----------+-------------------+----------|
| Turbo switch | J17 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|-------------------------------+---------------+------------|
| » | Monitor type select color | J5 | Open |
|---+---------------------------+---------------+------------|
| | Monitor type select | J5 | Closed |
| | monochrome | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | J10 | N/A |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | J21 | N/A |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | BIOS type select 27512 | JP1 | pins 2 & 3 |
| | | | closed |
|---+---------------------------+---------------+------------|
| | BIOS type select 271024 | JP1 | pins 1 & 2 |
| | | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | S1/5 | N/A |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | S1/8 | N/A |
| | not alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 | (4) 16K x 4 |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | NONE | (4) 16K x 4 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (4) 16K x 4 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J1 | J2 | J3 | J13 | J14 |
|----------+----------+----------+---------+--------+--------|
| 64KB | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | N/A |
|----------+----------+----------+---------+--------+--------|
| 128KB | 2 & 3 | 2 & 3 | 1 & 2 | 2 & 3 | 1 & 2 |
|----------+----------+----------+---------+--------+--------|
| 256KB | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 2 & 3 |
|------------------------------------------------------------|
| Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SWITCH CONFIGURATION (A) |
|------------------------------------------------------------|
| Type |S1/1 |S1/2 |S1/3 |S1/4|S1/6|S1/7|S3/1|S3/2|S3/3|S3/4|
|-------+-----+-----+-----+----+----+----+----+----+----+----|
|80386DX| On | On | On | On |Off |Off | On | On |Off |Off |
|-------+-----+-----+-----+----+----+----+----+----+----+----|
|80486SX| Off | Off | Off |Off | On | On |Off |Off | On | On |
|-------+-----+-----+-----+----+----+----+----+----+----+----|
|80486DX| Off | Off | Off |Off | On | On | On | On |Off |Off |
|------------------------------------------------------------|
|Note: All CPU configurations (Tables A & B) must be set for |
|proper operation. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (B) |
|------------------------------------------------------------|
| Type | S2/1 | S2/2 | S2/3 | S2/4 |
|------------+-----------+-----------+-----------+-----------|
| 80386DX-16 | Off | Off | On | On |
|------------+-----------+-----------+-----------+-----------|
| 80386DX-20 | Off | Off | On | Off |
|------------+-----------+-----------+-----------+-----------|
| 80386DX-33 | On | On | Off | On |
|------------+-----------+-----------+-----------+-----------|
| 80386DX-40 | On | On | On | On |
|------------+-----------+-----------+-----------+-----------|
| 80486SX-20 | On | Off | On | Off |
|------------+-----------+-----------+-----------+-----------|
| 80486DX-25 | On | Off | Off | Off |
|------------+-----------+-----------+-----------+-----------|
| 80486DX-33 | On | Off | Off | On |
|------------+-----------+-----------+-----------+-----------|
| 80486DX-50 | Off | Off | Off | Off |
+------------------------------------------------------------+