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# HORNET TECHNOLOGY CORPORATION
AMTI 486SX20/DX33
Processor 80486SX/80487SX/80486DX
Processor Speed 20/33MHz
Chip Set TI
Max. Onboard DRAM 32MB
Cache None
BIOS AMI
Dimensions 330mm x 218mm
I/O Options 32-bit external memory card slot
NPU Options 4167
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| External battery | J6 | Turbo switch | J13 |
|-------------------+----------+------------------+----------|
| Reset switch | J10 | Turbo LED | J14 |
|-------------------+----------+------------------+----------|
| Speaker | J11 | 32-bit external | S1 |
| | | memory card | |
|-------------------+----------+------------------+----------|
| Power LED & | J12 | | |
| keylock | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|----------------------------------------+--------+----------|
| » | Monitor type select color | J3 | Closed |
|---+------------------------------------+--------+----------|
| | Monitor type select monochrome | J3 | Open |
|---+------------------------------------+--------+----------|
| » | POST enabled | J4 | Closed |
|---+------------------------------------+--------+----------|
| | POST disabled | J4 | Open |
|---+------------------------------------+--------+----------|
| » | Factory configured - do not alter | J5 | N/A |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | J7 | J8 |
|------------+--------------------+--------------------------|
| 80486SX | pins 1 & 2 closed | pins 3 & 4 closed |
|------------+--------------------+--------------------------|
| 80487SX | pins 2 & 3 closed | pins 3 & 4, 5 & 6 closed |
|------------+--------------------+--------------------------|
| 80486DX | pins 2 & 3 closed | pins 1 & 2, 5 & 6 closed |
+------------------------------------------------------------+