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# WESTERN DIGITAL CORPORATION
WD386SX-LPX
Processor 80386SX
Processor Speed 16/20MHz
Chip Set WD
Max. Onboard 32MB
DRAM
Cache None
BIOS AMI/Award
Dimensions 330mm x 218mm
I/O Options Parallel port, serial port (2), floppy drive
interface, IDE interface, VGA port, bus mouse
port, IBM video interface, proprietary bus
expansion slot
NPU Options 80387SX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| Proprietary bus | J1 | Parallel port | J10 |
| expansion card | | | |
|------------------+----------+-------------------+----------|
| Mouse port | J4 | IBM video | J11 |
| | | interface | |
|------------------+----------+-------------------+----------|
| Reset switch | J6 | VGA port | J12 |
|------------------+----------+-------------------+----------|
| Floppy drive | J7 | IDE interface | J14 |
| interface | | | |
|------------------+----------+-------------------+----------|
| Serial port 2 | J8 | Keyswitch/IDE | J15 |
| | | interface LED | |
|------------------+----------+-------------------+----------|
| Serial port 1 | J9 | External speaker | J17 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | CMOS memory normal operation | W1 | Open |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | W1 | Closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | W2 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | W3 | Closed |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Mouse interrupt enabled IRQ12 | W4 | Closed |
|---+----------------------------------+--------+------------|
| | Mouse interrupt disabled IRQ12 | W4 | Open |
|---+----------------------------------+--------+------------|
| » | Monitor type select color | W5 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | W5 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | VGA clock select internal | W6 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | VGA clock select external | W6 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | VGA port enabled | W7 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | VGA port disabled | W7 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Monitor type select multisync | W8 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Monitor type select fixed | W8 | pins 1 & 2 |
| | frequency | | closed |
|---+----------------------------------+--------+------------|
| » | Monitor type select AT | W9 | pins 2 & 3 |
| | compatible | | closed |
|---+----------------------------------+--------+------------|
| | Monitor type select PS/2 | W9 | pins 1 & 2 |
| | compatible | | closed |
|---+----------------------------------+--------+------------|
| » | Speaker select internal | W10 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Speaker select external | W10 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | IDE interface LED enabled | W11 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | IDE interface LED disabled | W11 | pins 1 & 2 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 1MB | (2) 256K x | (2) 256K x | NONE | NONE |
| | 9 | 9 | | |
|-------+-------------+------------+------------+------------|
| 2MB | (2) 256K x | (2) 256K x | (2) 256K x | (2) 256K x |
| | 9 | 9 | 9 | 9 |
|-------+-------------+------------+------------+------------|
| 2.5MB | (2) 256K x | (2) 1M x 9 | NONE | NONE |
| | 9 | | | |
|-------+-------------+------------+------------+------------|
| 4MB | (2) 1M x 9 | (2) 1M x 9 | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 5MB | (2) 256K x | (2) 256K x | (2) 1M x 9 | (2) 1M x 9 |
| | 9 | 9 | | |
|-------+-------------+------------+------------+------------|
| 8MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 |
+------------------------------------------------------------+