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# GENESYS ATE, INC.
GX 486I
Processor 80486SX/80487SX/80486DX
Processor Speed 20/33/50MHz
Chip Set UMC
Max. Onboard DRAM 32MB
Cache 64/128/256KB
BIOS AMI/Award
Dimensions 330mm x 218mm
I/O Options None
NPU Options 4167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| External battery | J1 | Turbo switch | J10 |
|---------------------+----------+----------------+----------|
| Power LED & keylock | J8 | Reset switch | W17 |
|---------------------+----------+----------------+----------|
| Speaker | J9 | Turbo LED | W18 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+---------+-----------|
| ยป | Monitor type select monochrome | W1 | Open |
|---+----------------------------------+---------+-----------|
| | Monitor type select color | W1 | 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 |
|------------------+--------------------+--------------------|
| 17MB | (4) 256K x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 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 | W3 | W4 | W6 | W7 | W8 |
|----------+----------+----------+---------+--------+--------|
| 64KB | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 3 & 4 |
|----------+----------+----------+---------+--------+--------|
| 128KB | 1 & 2 | 1 & 2 | 3 & 4 | 3 & 4 | 3 & 4 |
|----------+----------+----------+---------+--------+--------|
| 256KB | 3 & 4 | 3 & 4 | 3 & 4 | 1 & 2 | 3 & 4 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | W2 | W14 | W15 | W16 |
|---------+--------+-------------------+------------+--------|
| 80486SX | Closed | Open | pins 2 & 3 | Open |
| | | | closed | |
|---------+--------+-------------------+------------+--------|
| 80487SX | Open | pins 2 & 3 closed | pins 1 & 2 | Open |
| | | | closed | |
|---------+--------+-------------------+------------+--------|
| 80486DX | Open | pins 1 & 2 closed | pins 1 & 2 | Closed |
| | | | closed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP4 | R1 | R2 | R3 |
|---------+-------------------+----------+---------+---------|
| 20MHz | pins 2 & 3 closed | Open | Open | Closed |
|---------+-------------------+----------+---------+---------|
| 25MHz | pins 1 & 2 closed | Open | Open | Open |
|---------+-------------------+----------+---------+---------|
| 33MHz | pins 1 & 2 closed | Closed | Open | Open |
|---------+-------------------+----------+---------+---------|
| 40MHz | pins 1 & 2 closed | Open | Closed | Open |
|---------+-------------------+----------+---------+---------|
| 50MHz | pins 1 & 2 closed | Closed | Closed | Open |
+------------------------------------------------------------+