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# APRICOT COMPUTERS LIMITED
XEN-S VENUS II MOTHERBOARD
Processor 80286/80386SX (exact location unknown)
Processor 10/12/16/20MHz
Speed
Chip Set Unidentified
Max. Onboard 8MB (with external memory upgrade)
DRAM
Cache None
BIOS Unidentified
Dimensions 220mm x 220mm
I/O Options Floppy drive interface, IDE interface, parallel
port, serial ports (2), VGA port ethernet
connector (exact locations unknown)
NPU Options 80287/80387SX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location |
|-------------------------------+----------------------------|
| Memory upgrade connector | CN1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|---------------------------------+---------------+----------|
| » | 8MB memory module not | SW1 | Open |
| | installed | | |
|---+-----------------------------+---------------+----------|
| | 8MB memory module installed | SW1 | Closed |
|---+-----------------------------+---------------+----------|
| » | Monitor type select color | SW5 | Closed |
|---+-----------------------------+---------------+----------|
| | Monitor type select | SW5 | Open |
| | monochrome | | |
|---+-----------------------------+---------------+----------|
| » | Ethernet cable type select | SW9/1-8 | On |
| | BNC | | |
|---+-----------------------------+---------------+----------|
| | Ethernet cable type select | SW9/1-8 | Off |
| | D - shell | | |
|---+-----------------------------+---------------+----------|
| » | Password enabled | SW10/1 | On |
|---+-----------------------------+---------------+----------|
| | Password disabled | SW10/1 | Off |
|---+-----------------------------+---------------+----------|
| » | COM1 enabled | SW10/2 | On |
|---+-----------------------------+---------------+----------|
| | COM1 disabled | SW10/2 | Off |
|---+-----------------------------+---------------+----------|
| » | Floppy drive interface | SW10/3 | On |
| | enabled | | |
|---+-----------------------------+---------------+----------|
| | Floppy drive interface | SW10/3 | Off |
| | disabled | | |
|---+-----------------------------+---------------+----------|
| » | IDE interface enabled | SW10/4 | On |
|---+-----------------------------+---------------+----------|
| | IDE interface disabled | SW10/4 | Off |
|---+-----------------------------+---------------+----------|
| » | COM2 enabled | SW10/5 | On |
|---+-----------------------------+---------------+----------|
| | COM2 disabled | SW10/5 | Off |
|---+-----------------------------+---------------+----------|
| » | Ethernet enabled | SW10/6 | On |
|---+-----------------------------+---------------+----------|
| | Ethernet disabled | SW10/6 | Off |
|---+-----------------------------+---------------+----------|
| » | Parallel port enabled | SW10/7 | On |
|---+-----------------------------+---------------+----------|
| | Parallel port disabled | SW10/7 | Off |
|---+-----------------------------+---------------+----------|
| » | VGA enabled | SW10/8 | On |
|---+-----------------------------+---------------+----------|
| | VGA disabled | SW10/8 | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Module |
|-----------------+----------------------+-------------------|
| 1MB | 1MB | NONE |
|-----------------+----------------------+-------------------|
| 2MB | 1MB | 1MB |
|-----------------+----------------------+-------------------|
| 2MB | 2MB | NONE |
|-----------------+----------------------+-------------------|
| 3MB | 1MB | 2MB |
|-----------------+----------------------+-------------------|
| 4MB | 2MB | 2MB |
|-----------------+----------------------+-------------------|
| 5MB | 1MB | 4MB |
|-----------------+----------------------+-------------------|
| 6MB | 2MB | 4MB |
|-----------------+----------------------+-------------------|
| 8MB | 1MB | 8MB |
|-----------------+----------------------+-------------------|
| 8MB | 2MB | 6MB |
|-----------------+----------------------+-------------------|
| 8MB | 2MB | 8MB |
|------------------------------------------------------------|
| Note: Bank 0 is factory installed and is not |
| configurable. The location is unknown. On board |
| memory size depends on board version. When the 8MB |
| module is installed, Bank 0 is automatically |
| disabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | SW2 | SW3 |
|-------------------+--------------------+-------------------|
| 80286 | Closed | Closed |
|-------------------+--------------------+-------------------|
| 80386 | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | SW6 | SW7 |
|-------------------+--------------------+-------------------|
| 10MHz | Open | Open |
|-------------------+--------------------+-------------------|
| 12MHz | Open | Closed |
|-------------------+--------------------+-------------------|
| 16MHz | Closed | Open |
|-------------------+--------------------+-------------------|
| 20MHz | Closed | Closed |
+------------------------------------------------------------+