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# APRICOT COMPUTERS LIMITED
LS PRO (REV C) MOTHERBOARD
Processor 80486SX/80486DX2/80486DX4
Processor 33/66(internal)/100(internal)MHz
Speed
Chip Set Unidentified
Max. Onboard 16MB
DRAM
Cache None
BIOS Unidentified
Dimensions 330mm x 200mm
I/O Options Floppy drive interface, IDE interface, parallel
port, PS/2 mouse port, serial port, VGA port,
Ethernet connectors (3)
NPU Options 80487SX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-----------------+----------+--------------------+----------|
| Speaker | CN1 | Parallel port | CN9 |
|-----------------+----------+--------------------+----------|
| Floppy drive | CN2 | Headphone port | CN10 |
| interface | | | |
|-----------------+----------+--------------------+----------|
| IDE interface | CN3 | Microphone port | CN11 |
|-----------------+----------+--------------------+----------|
| Ethernet UTP | CN4 | Video memory | CN12 |
| port | | upgrade connector | |
|-----------------+----------+--------------------+----------|
| Ethernet thin | CN5 | Ethernet thick | CN13 |
| port | | port | |
|-----------------+----------+--------------------+----------|
| VGA port | CN6 | Chassis fan power | PL7 |
|-----------------+----------+--------------------+----------|
| Serial port | CN7 | IDE power | PL12 |
|-----------------+----------+--------------------+----------|
| PS/2 mouse port | CN8 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | CMOS memory normal operation | JP2 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP2 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Ethernet cable type select thick | SW1 | Open |
|---+----------------------------------+--------+------------|
| | Ethernet cable type select thin | SW1 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|----------+----------------+----------------+---------------|
| 4MB | (8) 411000 | NONE | NONE |
|----------+----------------+----------------+---------------|
| 6MB | (8) 411000 | (2) 1M x 9 | NONE |
|----------+----------------+----------------+---------------|
| 8MB | (8) 411000 | (2) 1M x 9 | (2) 1M x 9 |
|----------+----------------+----------------+---------------|
| 12MB | (8) 411000 | (2) 4M x 9 | NONE |
|----------+----------------+----------------+---------------|
| 16MB | (8) 411000 | (2) 4M x 9 | (2) 4M x 9 |
|------------------------------------------------------------|
| Note: Bank 0 is factory installed and is not configurable. |
| When 16MB is installed, Bank 0 is automatically disabled. |
+------------------------------------------------------------+