(TXT) View Source
       
       # OLIVETTI
       
          M400-10 (PCB BA901)
       
          Processor        80486SX/80487SX/80486DX                       
          Processor Speed  25MHz                                         
          Chip Set         Unidentified                                  
          Maximum Onboard  52MB                                          
          Memory           
          Cache            None                                          
          BIOS             Unidentified                                  
          Dimensions       355mm x 305mm                                 
          I/O Options      Floppy drive interface, IDE interface,        
                           parallel port, PS/2 mouse port, serial port,  
                           feature connector, VGA port, riser slot,      
                           console connector                             
          NPU Options      4167                                          
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |     Function      | Label |        Function        | Label |
          |-------------------+-------+------------------------+-------|
          | PS/2 mouse port   |  CN1  | IDE interface          |  CN6  |
          |-------------------+-------+------------------------+-------|
          | Parallel port     |  CN2  | Floppy drive interface |  CN7  |
          |-------------------+-------+------------------------+-------|
          | Serial port       |  CN3  | Console connector      |  CN8  |
          |-------------------+-------+------------------------+-------|
          | VGA port          |  CN4  | Riser slot             |  SL1  |
          |-------------------+-------+------------------------+-------|
          | Feature connector |  CN5  |                        |       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |                Setting                | Label  | Position  |
          |---------------------------------------+--------+-----------|
          | » | ROM BIOS enabled                  |  J11   |  Closed   |
          |---+-----------------------------------+--------+-----------|
          |   | ROM BIOS disabled                 |  J11   |   Open    |
          |---+-----------------------------------+--------+-----------|
          | » | Floppy drive oscillator enabled   |  J13   |  Closed   |
          |---+-----------------------------------+--------+-----------|
          |   | Floppy drive oscillator disabled  |  J13   |   Open    |
          |---+-----------------------------------+--------+-----------|
          | » | CMOS memory normal operation      |  J15   |   Open    |
          |---+-----------------------------------+--------+-----------|
          |   | CMOS memory clear                 |  J15   |  Closed   |
          |---+-----------------------------------+--------+-----------|
          | » | One hard drive installed          |  J16   |  Closed   |
          |---+-----------------------------------+--------+-----------|
          |   | Two hard drives installed         |  J16   |   Open    |
          |---+-----------------------------------+--------+-----------|
          | » | Serial port enabled               | SW1/1  |    On     |
          |---+-----------------------------------+--------+-----------|
          |   | Serial port disabled              | SW1/1  |    Off    |
          |---+-----------------------------------+--------+-----------|
          | » | Built in setup enabled            | SW1/2  |    On     |
          |---+-----------------------------------+--------+-----------|
          |   | Built in setup disabled           | SW1/2  |    Off    |
          |---+-----------------------------------+--------+-----------|
          | » | Floppy drive write enabled        | SW1/3  |    On     |
          |---+-----------------------------------+--------+-----------|
          |   | Floppy drive write disabled       | SW1/3  |    Off    |
          |---+-----------------------------------+--------+-----------|
          | » | Factory configured - do not alter | SW1/4  |    On     |
          |------------------------------------------------------------|
          | Note: The location of pin 1 on SW1 is unidentified.        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            DRAM                            |
          |------------------------------------------------------------|
          |  Size  | Bank 0  |   Bank 1    |   Bank 2    |   Bank 3    |
          |--------+---------+-------------+-------------+-------------|
          |  4MB   |   4MB   |    None     |    None     |    None     |
          |--------+---------+-------------+-------------+-------------|
          |  8MB   |   4MB   | (4) 1M x 9  |    None     |    None     |
          |--------+---------+-------------+-------------+-------------|
          |  12MB  |   4MB   | (4) 1M x 9  | (4) 1M x 9  |    None     |
          |--------+---------+-------------+-------------+-------------|
          |  16MB  |   4MB   | (4) 1M x 9  | (4) 1M x 9  | (4) 1M x 9  |
          |--------+---------+-------------+-------------+-------------|
          |  20MB  |   4MB   | (4) 4M x 9  |    None     |    None     |
          |--------+---------+-------------+-------------+-------------|
          |  24MB  |   4MB   | (4) 1M x 9  | (4) 4M x 9  |    None     |
          |--------+---------+-------------+-------------+-------------|
          |  36MB  |   4MB   | (4) 4M x 9  | (4) 4M x 9  |    None     |
          |--------+---------+-------------+-------------+-------------|
          |  40MB  |   4MB   | (4) 1M x 9  | (4) 4M x 9  | (4) 4M x 9  |
          |--------+---------+-------------+-------------+-------------|
          |  40MB  |   4MB   | (4) 4M x 9  | (4) 4M x 9  | (4) 1M x 9  |
          |--------+---------+-------------+-------------+-------------|
          |  40MB  |   4MB   | (4) 4M x 9  | (4) 1M x 9  | (4) 4M x 9  |
          |--------+---------+-------------+-------------+-------------|
          |  52MB  |   4MB   | (4) 4M x 9  | (4) 4M x 9  | (4) 4M x 9  |
          |------------------------------------------------------------|
          | Note: Bank 0 is factory installed and is not configurable. |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                          CPU TYPE                          |
          |------------------------------------------------------------|
          | Setting  |        J18        |   J19   |        J20        |
          |----------+-------------------+---------+-------------------|
          | 80486SX  |       Open        |  Open   | Pins 2 & 3 closed |
          |----------+-------------------+---------+-------------------|
          | 80487SX  | Pins 2 & 3 closed | Closed  | Pins 1 & 2 closed |
          |----------+-------------------+---------+-------------------|
          | 80486DX  | Pins 1 & 2 closed | Closed  | Pins 1 & 2 closed |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 SERIAL PORT RING INDICATOR                 |
          |------------------------------------------------------------|
          |        Setting         |       J7        |       J8        |
          |------------------------+-----------------+-----------------|
          | » | FAIL SAFE enabled  |     Closed      |     Closed      |
          |---+--------------------+-----------------+-----------------|
          |   | FAIL SAFE disabled |      Open       |      Open       |
          +------------------------------------------------------------+