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# NORTHGATE COMPUTER SYSTEMS, INC.
ELEGANCE 425E
Processor 80486DX
Processor Speed 25MHz
Chip Set Intel
Max. Onboard 32MB
DRAM
Cache 128KB
BIOS AMI
Dimensions 350mm x 304mm
I/O Options Parallel port, serial port, floppy drive
interface, IDE interface
NPU Options 4167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| Speaker | P11 | Serial port 1 | P20 |
|---------------------+----------+----------------+----------|
| Power LED & keylock | P12 | Parallel port | P21 |
|---------------------+----------+----------------+----------|
| Turbo LED | P13 | Bus mouse | P22 |
|---------------------+----------+----------------+----------|
| Reset switch | P14 | IDE interface | P23 |
|---------------------+----------+----------------+----------|
| Floppy drive | P18 | IDE interface | P24 |
| interface | | LED | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Cache enabled | J1 | Closed |
|---+----------------------------------+--------+------------|
| | Cache disabled | J1 | Open |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J2 | pins 2 & 3 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J13 | pins 2 & 3 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J14 | pins 1 & 2 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J15 | pins 1 & 2 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J16 | pins 1 & 2 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Serial port IRQ select IRQ4 | J17 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Serial port IRQ select IRQ3 | J17 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Parallel port IRQ select IRQ4 | J18 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Parallel port IRQ select IRQ3 | J18 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J19 | Closed |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J20 | Open |
| | 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 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J3 | J4 | J5 | J6 | J7 |
|---------+----------+----------+---------+---------+--------|
| 1MB | Open | Open | Open | Open | Open |
|---------+----------+----------+---------+---------+--------|
| 2MB | Closed | Closed | Closed | Closed | Open |
|---------+----------+----------+---------+---------+--------|
| 4MB | Open | Open | Open | Open | Open |
|---------+----------+----------+---------+---------+--------|
| 8MB | Closed | Closed | Closed | Closed | Open |
|---------+----------+----------+---------+---------+--------|
| 16MB | Open | Open | Open | Open | 2 & 3 |
|---------+----------+----------+---------+---------+--------|
| 32MB | Closed | Closed | Closed | Closed | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J8 | J9 | J10 | J11 | J12 |
|---------+----------+----------+---------+---------+--------|
| 1MB | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 |
|---------+----------+----------+---------+---------+--------|
| 2MB | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 |
|---------+----------+----------+---------+---------+--------|
| 4MB | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 |
|---------+----------+----------+---------+---------+--------|
| 8MB | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 | 2 & 3 |
|---------+----------+----------+---------+---------+--------|
| 16MB | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 | 2 & 3 |
|---------+----------+----------+---------+---------+--------|
| 32MB | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|----------------------------+-------------------------------|
| 128KB | (5) 32K x 8 |
+------------------------------------------------------------+