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# APRICOT COMPUTERS LIMITED
VXFT 386 MKI (TITAN MOTHERBOARD)
Processor 80386DX
Processor 25MHz
Speed
Chip Set Unidentified
Max. Onboard 16MB
DRAM
Cache None
BIOS Unidentified
Dimensions 254mm x 220mm
I/O Options Floppy drive interface, IDE interface, parallel
port, PS/2 mouse port, serial port, VGA port,
synchronous port
NPU Options 3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| Serial port | CN1 | Floppy drive | CN6 |
| | | interface | |
|------------------+----------+-------------------+----------|
| Parallel port | CN2 | IDE interface | CN7 |
|------------------+----------+-------------------+----------|
| VGA port | CN3 | External battery | JP2 |
|------------------+----------+-------------------+----------|
| Synchronous port | CN4 | Speaker | JP3 |
|------------------+----------+-------------------+----------|
| PS/2 mouse port | CN5 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|---------------------------------+---------------+----------|
| » | 386 pipeline mode enabled | SW1/1 | On |
|---+-----------------------------+---------------+----------|
| | 386 pipeline mode disabled | SW1/1 | Off |
|---+-----------------------------+---------------+----------|
| » | 385 pipeline mode enabled | SW1/2 | On |
|---+-----------------------------+---------------+----------|
| | 385 pipeline mode disabled | SW1/2 | Off |
|---+-----------------------------+---------------+----------|
| » | ROM disabled | SW1/3 | On |
|---+-----------------------------+---------------+----------|
| | ROM enabled | SW1/3 | Off |
|---+-----------------------------+---------------+----------|
| » | Refresh enabled | SW1/4 | On |
|---+-----------------------------+---------------+----------|
| | Refresh disabled | SW1/4 | Off |
|---+-----------------------------+---------------+----------|
| » | Factory configured - do not | SW2/6 | On |
| | alter | | |
|---+-----------------------------+---------------+----------|
| » | NPU disabled | SW2/7 | Off |
|---+-----------------------------+---------------+----------|
| | NPU enabled | SW2/7 | On |
|---+-----------------------------+---------------+----------|
| » | Factory configured - do not | SW2/8 | On |
| | alter | | |
|---+-----------------------------+---------------+----------|
| » | Factory configured - do not | SW3 | Open |
| | alter | | |
|---+-----------------------------+---------------+----------|
| » | Ethernet cable select BNC | SW53/1-6 | On |
|---+-----------------------------+---------------+----------|
| | Ethernet cable select D - | SW53/1-6 | Off |
| | shell | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 1MB | (4) 256K x 9 | NONE |
|------------------+--------------------+--------------------|
| 1MB | (4) 256K x 9 | NONE |
|------------------+--------------------+--------------------|
| 2MB | (4) 256K x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 4MB | (4) 1M x 9 | NONE |
|------------------+--------------------+--------------------|
| 5MB | (4) 256K x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 12MB | (4) 2M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 2M x 9 | (4) 2M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM SWITCH CONFIGURATION |
|------------------------------------------------------------|
| Size | SW2/1 | SW2/2 | SW2/3 |
|--------------+---------------+--------------+--------------|
| 1MB | Off | Off | Off |
|--------------+---------------+--------------+--------------|
| 1MB | On | Off | Off |
|--------------+---------------+--------------+--------------|
| 2MB | Off | On | Off |
|--------------+---------------+--------------+--------------|
| 4MB | Off | Off | On |
|--------------+---------------+--------------+--------------|
| 5MB | On | On | Off |
|--------------+---------------+--------------+--------------|
| 8MB | On | Off | On |
|--------------+---------------+--------------+--------------|
| 12MB | Off | On | On |
|--------------+---------------+--------------+--------------|
| 16MB | On | On | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | SW2/4 | SW2/5 |
|--------------------+--------------------+------------------|
| 25MHz | Off | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MICSELLANEOUS TECHINCAL NOTE |
|------------------------------------------------------------|
| Note: The purpose of JP1 is unidentified by the |
| manufacturer. |
+------------------------------------------------------------+