OLIVETTI
========

   M480-20 (BA371)

   Processor        80486SX                                       
   Processor Speed  33MHz                                         
   Chip Set         Topcat                                        
   Video Chip Set   Unidentified                                  
   Maximum Onboard  36MB (16MB on external memory card)           
   Memory           
   Maximum Video    1MB                                           
   Memory           
   Cache            None                                          
   BIOS             Unidentified                                  
   Dimensions       330mm x 218mm                                 
   I/O Options      Floppy drive interfaces (2), SCSI/IDE         
                    interface, parallel port, PS/2 mouse port,    
                    serial port, riser slot, feature connector    
   NPU Options      4167                                          

<gopher://bitreich.org/I/th99/m/M-O/33366-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | Feature connector |   CN1    | Floppy drive     |   CN6    |
   |                   |          | interface 3      |          |
   |-------------------+----------+------------------+----------|
   | VGA port          |   CN2    | PS/2 mouse port  |   CN7    |
   |-------------------+----------+------------------+----------|
   | Parallel port     |   CN3    | SCSI/IDE         |   CN8    |
   |                   |          | interface        |          |
   |-------------------+----------+------------------+----------|
   | Serial port       |   CN4    | Riser slot       |   SL1    |
   |-------------------+----------+------------------+----------|
   | Floppy drive      |   CN5    |                  |          |
   | interface 1/2     |          |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function                | Label |  Position  |
   |---------------------------------------+-------+------------|
   |>> | Third floppy drive interface      |  P1   | Pins 1 & 2 |
   |   | enabled                           |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | Third floppy drive interface      |  P1   | Pins 2 & 3 |
   |   | disabled                          |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | Password enabled                  |  P2   | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | Password disabled                 |  P2   | Pins 1 & 2 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | Parallel port unidirectional      |  P3   | Pins 1 & 2 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | Parallel port bidirectional       |  P3   | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | Interlaced video enabled          |  P4   | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | Interlaced video disabled         |  P4   | Pins 1 & 2 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | Mainboard current control maximum |  P5   | Pins 1 & 2 |
   |   | current                           |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | Mainboard current control minimum |  P5   | Pins 2 & 3 |
   |   | current                           |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | Hard drive wait state select 1    |  P7   | Pins 1 & 2 |
   |   | wait state                        |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | Hard drive wait state select 0    |  P7   | Pins 2 & 3 |
   |   | wait states                       |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | On board battery enabled          |  P8   | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | On board battery disabled         |  P8   | Pins 1 & 2 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | Parity check enabled              |  P9   | Pins 1 & 2 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |   | Parity check disabled             |  P9   | Pins 2 & 3 |
   |   |                                   |       |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |   Size    |   Bank 0    |     Bank 1      |     Bank 2     |
   |-----------+-------------+-----------------+----------------|
   |    4MB    |     4MB     |      None       |      None      |
   |-----------+-------------+-----------------+----------------|
   |    8MB    |     4MB     |   (4) 1M x 9    |      None      |
   |-----------+-------------+-----------------+----------------|
   |   12MB    |     4MB     |   (4) 1M x 9    |   (4) 1M x 9   |
   |-----------+-------------+-----------------+----------------|
   |   20MB    |     4MB     |   (4) 4M x 9    |      None      |
   |-----------+-------------+-----------------+----------------|
   |   36MB    |     4MB     |   (4) 4M x 9    |   (4) 4M x 9   |
   |------------------------------------------------------------|
   | Note: Bank 0 is factory installed and is not configurable. |
   | Bank 2 is located on the memory card.                      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 VIDEO MEMORY CONFIGURATION                 |
   |------------------------------------------------------------|
   | Note: 1MB is factory installed and is not configurable.    |
   +------------------------------------------------------------+