SIEMENS NIXDORF
===============

   SYSTEM BOARD D1081

   Device Type      Mainboard                                     
   Processor        Pentium II/Celeron                            
   Processor Speed  233/266/300/333MHz                            
   Chip Set         Unidentified                                  
   Video Chip Set   ATI                                           
   Maximum Onboard  256MB (SDRAM supported)                       
   Memory           
   Maximum Video    2MB                                           
   Memory           
   Cache            0/128/256/512KB (located on the CPU)          
   BIOS             Unidentified                                  
   Dimensions       254mm x 218mm                                 
   I/O Options      32-bit PCI slots (3), floppy drive interface, 
                    IDE interfaces (2), parallel port, PS/2 mouse 
                    port, serial ports (2), VGA port, USB         
                    connectors (2), ATX power connector           

<gopher://bitreich.org/I/th99/m/S-T/35734-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | ATX power         |   ATX    | PS/2 mouse port  |   CN5    |
   | connector         |          |                  |          |
   |-------------------+----------+------------------+----------|
   | Chassis fan power |    C1    | Serial port 1    |   CN6    |
   |-------------------+----------+------------------+----------|
   | Front panel       |    C2    | Floppy drive     |   CN7    |
   | connector         |          | interface        |          |
   |-------------------+----------+------------------+----------|
   | CPU fan power     |    C3    | IDE interface 1  |   CN8    |
   |-------------------+----------+------------------+----------|
   | VGA port          |   CN1    | IDE interface 2  |   CN9    |
   |-------------------+----------+------------------+----------|
   | USB connector 1   |   CN2    | Serial port 2    |   CN10   |
   |-------------------+----------+------------------+----------|
   | USB connector 2   |   CN3    | 32-bit PCI slots |  PC1 -   |
   |                   |          |                  |   PC3    |
   |-------------------+----------+------------------+----------|
   | Parallel port     |   CN4    |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |                Function                 | Label | Position |
   |-----------------------------------------+-------+----------|
   |   | Floppy drive write protect disabled |  FWP  |   Open   |
   |---+-------------------------------------+-------+----------|
   |   | Floppy drive write protect enabled  |  FWP  |  Closed  |
   |---+-------------------------------------+-------+----------|
   |>> | Flash BIOS normal operation         |  RCV  |   Open   |
   |---+-------------------------------------+-------+----------|
   |   | Flash BIOS recovery mode            |  RCV  |  Closed  |
   |---+-------------------------------------+-------+----------|
   |>> | Factory configured - do not alter   |  SKP  |   Open   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIMM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       16MB       |    (1) 2M x 64     |        None        |
   |------------------+--------------------+--------------------|
   |       16MB       |    (1) 1M x 64     |    (1) 1M x 64     |
   |------------------+--------------------+--------------------|
   |       24MB       |    (1) 2M x 64     |    (1) 1M x 64     |
   |------------------+--------------------+--------------------|
   |       32MB       |    (1) 4M x 64     |        None        |
   |------------------+--------------------+--------------------|
   |       32MB       |    (1) 2M x 64     |    (1) 2M x 64     |
   |------------------+--------------------+--------------------|
   |       40MB       |    (1) 4M x 64     |    (1) 1M x 64     |
   |------------------+--------------------+--------------------|
   |       48MB       |    (1) 4M x 64     |    (1) 2M x 64     |
   |------------------+--------------------+--------------------|
   |       64MB       |    (1) 8M x 64     |        None        |
   |------------------+--------------------+--------------------|
   |       64MB       |    (1) 4M x 64     |    (1) 4M x 64     |
   |------------------+--------------------+--------------------|
   |       72MB       |    (1) 8M x 64     |    (1) 1M x 64     |
   |------------------+--------------------+--------------------|
   |       80MB       |    (1) 8M x 64     |    (1) 2M x 64     |
   |------------------+--------------------+--------------------|
   |       96MB       |    (1) 8M x 64     |    (1) 4M x 64     |
   |------------------+--------------------+--------------------|
   |      128MB       |    (1) 16M x 64    |        None        |
   |------------------+--------------------+--------------------|
   |      128MB       |    (1) 8M x 64     |    (1) 8M x 64     |
   |------------------+--------------------+--------------------|
   |      136MB       |    (1) 16M x 64    |    (1) 1M x 64     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DIMM CONFIGURATION (CON'T)                 |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |      144MB       |    (1) 16M x 64    |    (1) 2M x 64     |
   |------------------+--------------------+--------------------|
   |      160MB       |    (1) 16M x 64    |    (1) 4M x 64     |
   |------------------+--------------------+--------------------|
   |      192MB       |    (1) 16M x 64    |    (1) 8M x 64     |
   |------------------+--------------------+--------------------|
   |      256MB       |    (1) 16M x 64    |    (1) 16M x 64    |
   |------------------------------------------------------------|
   |      Note: Board accepts SDRAM memory.                     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |      Note: 256KB/512KB cache is located on the Pentium II  |
   |      CPU. 128KB cache is located on the Celeron 300A & 333 |
   |      CPU.                                                  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    VIDEO CONFIGURATION                     |
   |------------------------------------------------------------|
   | Note: 2MB of video memory is factory installed and is not  |
   | configurable. The location is unidentified.                |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CPU SPEED SELECTION                     |
   |------------------------------------------------------------|
   |CPU speed|Clock speed|Multiplier| CF1 |  CF2  | CF3  | CF4  |
   |---------+-----------+----------+-----+-------+------+------|
   | 233MHz  |   66MHz   |   3.5x   |Open |Closed | Open | Open |
   |---------+-----------+----------+-----+-------+------+------|
   | 266MHz  |   66MHz   |    4x    |Open | Open  |Closed|Closed|
   |---------+-----------+----------+-----+-------+------+------|
   | 300MHz  |   66MHz   |   4.5x   |Open | Open  |Closed| Open |
   |---------+-----------+----------+-----+-------+------+------|
   | 333MHz  |   66MHz   |    5x    |Open | Open  | Open |Closed|
   +------------------------------------------------------------+