SIEMENS NIXDORF INFORMATIONSSYSTEME AG
======================================

   S26361-D802-C

   Processor    80486SX/80486DX/ODP486SX/80486DX2                 
   Processor    25/33/50(internal)/66(internal)MHz                
   Speed        
   Chip Set     Unidentified                                      
   Max. Onboard 32MB                                              
   DRAM         
   Cache        128KB                                             
   BIOS         Unidentified                                      
   Dimensions   330mm x 218mm                                     
   I/O Options  Floppy drive interface, IDE interface, parallel   
                port, PS/2 mouse port, serial ports (2), VGA      
                feature connector, VGA port                       
   NPU Options  None                                              

<gopher://bitreich.org/I/th99/m/S-T/32462-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose         | Location | Purpose            | Location |
   |-----------------+----------+--------------------+----------|
   | VGA port        |   CN1    | Floppy drive       |   CN6    |
   |                 |          | interface          |          |
   |-----------------+----------+--------------------+----------|
   | Parallel port   |   CN2    | IDE interface      |   CN7    |
   |-----------------+----------+--------------------+----------|
   | Serial port 2   |   CN3    | VGA feature        |   CN8    |
   |                 |          | connector          |          |
   |-----------------+----------+--------------------+----------|
   | Serial port 1   |   CN4    | LED connector      |   JP1    |
   |-----------------+----------+--------------------+----------|
   | PS/2 mouse port |   CN5    | Speaker            |   JP2    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | IRQ12 type select                |   J1   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | IRQ12 type select                |   J1   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | CMOS memory normal operation     |  J3A   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | CMOS memory clear                |  J3A   |   Closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  J3B   |   Closed   |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Monitor type select color        |  J3D   |   Closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select monochrome   |  J3D   |    Open    |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  J3E   |    Open    |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  J3F   |   Closed   |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Floppy drive interface enabled   |  J3G   |   Closed   |
   |---+----------------------------------+--------+------------|
   |   | Floppy drive interface disabled  |  J3G   |    Open    |
   |---+----------------------------------+--------+------------|
   |>> | IDE interface enabled            |  J3H   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | IDE interface disabled           |  J3H   |   Closed   |
   |---+----------------------------------+--------+------------|
   |>> | On board VGA controller enabled  |  J3I   |   Closed   |
   |---+----------------------------------+--------+------------|
   |   | On board VGA controller disabled |  J3I   |    Open    |
   |---+----------------------------------+--------+------------|
   |>> | VGA feature connector disabled   |   J4   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | VGA feature connector enabled    |   J4   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       4MB        |    (1) 1M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       8MB        |    (1) 1M x 36     |    (1) 1M x 36     |
   |------------------+--------------------+--------------------|
   |       8MB        |    (1) 2M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       12MB       |    (1) 2M x 36     |    (1) 1M x 36     |
   |------------------+--------------------+--------------------|
   |       16MB       |    (1) 2M x 36     |    (1) 2M x 36     |
   |------------------+--------------------+--------------------|
   |       16MB       |    (1) 4M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       20MB       |    (1) 4M x 36     |    (1) 1M x 36     |
   |------------------+--------------------+--------------------|
   |       24MB       |    (1) 4M x 36     |    (1) 2M x 36     |
   |------------------+--------------------+--------------------|
   |       32MB       |    (1) 4M x 36     |    (1) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       32MB       |    (1) 8M x 36     |        NONE        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |        TAG         |
   |------------------+--------------------+--------------------|
   |      128KB       |    (4) 32K x 8     |     (1) 8K x 8     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU TYPE CONFIGURATION                   |
   |------------------------------------------------------------|
   |            Type            |              J2               |
   |----------------------------+-------------------------------|
   |          80486SX           |       pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |          ODP486SX          |       pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |          80486DX           |       pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |          80486DX2          |       pins 2 & 3 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |            Speed             |             J3C             |
   |------------------------------+-----------------------------|
   |            25MHz             |            Open             |
   |------------------------------+-----------------------------|
   |            33MHz             |           Closed            |
   |------------------------------+-----------------------------|
   |            50iMHz            |            Open             |
   |------------------------------+-----------------------------|
   |            66iMHz            |           Closed            |
   +------------------------------------------------------------+