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# NORTHGATE COMPUTER SYSTEMS, INC.
NORTHGATE 386SX
Processor 80386SX
Processor Speed 16MHz
Chip Set OPTI
Max. Onboard DRAM 16MB
Cache None
BIOS AMI
Dimensions 220mm x 220mm
I/O Options None
NPU Options 80387SX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+-----------+----------------+------------|
| External battery | J8 | Turbo LED | J17 pins 8 |
| | | | & 18 |
|------------------+-----------+----------------+------------|
| Speaker | J17 pins | Power LED & | J17 pins |
| | 1 - 4 | keylock | 11 - 15 |
|------------------+-----------+----------------+------------|
| Reset switch | J17 pins | | |
| | 9 & 19 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|------------------------------------+----------+------------|
| » | Factory configured - do not | J17 pins | Open |
| | alter | 10 & 20 | |
|---+--------------------------------+----------+------------|
| » | Factory configured - do not | J18 | Closed |
| | alter | | |
|---+--------------------------------+----------+------------|
| » | Monitor type select monochrome | JP1 | Open |
|---+--------------------------------+----------+------------|
| | Monitor type select color | JP1 | Closed |
|---+--------------------------------+----------+------------|
| » | Factory configured - do not | JP2 | pins 2 & 3 |
| | alter | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 512KB | (2) 256K x 9 | NONE |
|------------------+--------------------+--------------------|
| 1MB | (2) 256K x 9 | (2) 256K x 9 |
|------------------+--------------------+--------------------|
| 2MB | (2) 1M x 9 | NONE |
|------------------+--------------------+--------------------|
| 4MB | (2) 1M x 9 | (2) 1M x 9 |
|------------------+--------------------+--------------------|
| 10MB | (2) 1M x 9 | (2) 4M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (2) 4M x 9 | (2) 4M x 9 |
+------------------------------------------------------------+