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

   SYSTEM BOARD D873

   Device Type      Mainboard                                     
   Processor        Pentium                                       
   Processor Speed  100/133/166MHz                                
   Chip Set         Intel                                         
   Video Chip Set   Tseng Labs                                    
   Maximum Onboard  512MB                                         
   Memory           
   Maximum Video    1MB                                           
   Memory           
   Cache            512KB                                         
   BIOS             Unidentified                                  
   Dimensions       305mm x 244mm                                 
   I/O Options      32-bit PCI slots (4), floppy drive interface, 
                    IDE interface, parallel port, PS/2 mouse      
                    port, serial ports (2), VGA port, cache slot  

<gopher://bitreich.org/I/th99/m/S-T/35847-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose            | Location | Purpose         | Location |
   |--------------------+----------+-----------------+----------|
   | Chassis fan power  |    C1    | CAN bus control |   C16    |
   |                    |          | 1               |          |
   |--------------------+----------+-----------------+----------|
   | Aux voltage        |    C2    | PS/2 mouse port |   CN1    |
   | PRIMERGY 500/700   |          |                 |          |
   |--------------------+----------+-----------------+----------|
   | Power supply       |    C3    | Serial port 2   |   CN2    |
   | PRIMERGY 500/700   |          |                 |          |
   |--------------------+----------+-----------------+----------|
   | SCSI interface LED |    C4    | Serial port 1   |   CN3    |
   |--------------------+----------+-----------------+----------|
   | Chassis fan power  |    C5    | Parallel port   |   CN4    |
   |--------------------+----------+-----------------+----------|
   | Temperature sensor |    C6    | VGA port        |   CN5    |
   |--------------------+----------+-----------------+----------|
   | Speaker            |    C7    | Floppy drive    |   CN6    |
   |                    |          | interface       |          |
   |--------------------+----------+-----------------+----------|
   | Front panel        |    C8    | IDE interface   |   CN7    |
   | connector          |          |                 |          |
   |--------------------+----------+-----------------+----------|
   | Front panel        |    C9    | 5v power supply |    P1    |
   | connector          |          |                 |          |
   |--------------------+----------+-----------------+----------|
   | On/off switch      |   C10    | 5v power supply |    P2    |
   |--------------------+----------+-----------------+----------|
   | Temperature sensor |   C11    | 3.3v power      |    P3    |
   |                    |          | supply          |          |
   |--------------------+----------+-----------------+----------|
   | Temperature sensor |   C12    | 32-bit PCI      |  PC1 -   |
   |                    |          | slots           |   PC4    |
   |--------------------+----------+-----------------+----------|
   | Soft off power     |   C13    | Cache slot      |   SL1    |
   | supply             |          |                 |          |
   |--------------------+----------+-----------------+----------|
   | Remote on          |   C14    | VRM connector   |   VRM    |
   | connector          |          |                 |          |
   |--------------------+----------+-----------------+----------|
   | CAN bus control 2  |   C15    |                 |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function               | Label |   Position   |
   |-------------------------------------+-------+--------------|
   |>> | BIOS normal operation           | SW1/1 |     Off      |
   |---+---------------------------------+-------+--------------|
   |   | BIOS recovery mode              | SW1/1 |      On      |
   |---+---------------------------------+-------+--------------|
   |>> | Factory configured - do not     | SW1/2 | Unidentified |
   |   | alter                           |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Factory configured - do not     | SW1/3 | Unidentified |
   |   | alter                           |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Factory configured - do not     | SW1/4 | Unidentified |
   |   | alter                           |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | BIOS write protect disabled     | SW1/5 |     Off      |
   |---+---------------------------------+-------+--------------|
   |   | BIOS write protect enabled      | SW1/5 |      On      |
   |---+---------------------------------+-------+--------------|
   |>> | Floppy drive write protect      | SW1/6 |     Off      |
   |   | disabled                        |       |              |
   |---+---------------------------------+-------+--------------|
   |   | Floppy drive write protect      | SW1/6 |      On      |
   |   | enabled                         |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Factory configured - do not     | SW1/7 |     Off      |
   |   | alter                           |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Factory configured - do not     | SW1/8 | Unidentified |
   |   | alter                           |       |              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     SIMM CONFIGURATION                     |
   |------------------------------------------------------------|
   |  Size   |   Bank 0    |   Bank 1    |  Bank 2   |  Bank 3  |
   |---------+-------------+-------------+-----------+----------|
   |   8MB   | (2) 1M x 36 |    None     |   None    |   None   |
   |---------+-------------+-------------+-----------+----------|
   |  16MB   | (2) 2M x 36 |    None     |   None    |   None   |
   |---------+-------------+-------------+-----------+----------|
   |  16MB   | (2) 1M x 36 | (2) 1M x 36 |   None    |   None   |
   |---------+-------------+-------------+-----------+----------|
   |  24MB   | (2) 2M x 36 | (2) 1M x 36 |   None    |   None   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 SIMM CONFIGURATION (CON'T)                 |
   |------------------------------------------------------------|
   | Size  |   Bank 0    |   Bank 1   |   Bank 2   |   Bank 3   |
   |-------+-------------+------------+------------+------------|
   | 24MB  | (2) 1M x 36 |  (2) 1M x  |  (2) 1M x  |    None    |
   |       |             |     36     |     36     |            |
   |-------+-------------+------------+------------+------------|
   | 32MB  | (2) 4M x 36 |    None    |    None    |    None    |
   |-------+-------------+------------+------------+------------|
   | 32MB  | (2) 2M x 36 |  (2) 2M x  |    None    |    None    |
   |       |             |     36     |            |            |
   |-------+-------------+------------+------------+------------|
   | 32MB  | (2) 1M x 36 |  (2) 1M x  |  (2) 1M x  |  (2) 1M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 48MB  | (2) 2M x 36 |  (2) 2M x  |  (2) 2M x  |    None    |
   |       |             |     36     |     36     |            |
   |-------+-------------+------------+------------+------------|
   | 64MB  | (2) 2M x 36 |  (2) 2M x  |  (2) 2M x  |  (2) 2M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 64MB  | (2) 8M x 36 |    None    |    None    |    None    |
   |-------+-------------+------------+------------+------------|
   | 64MB  | (2) 4M x 36 |  (2) 4M x  |    None    |    None    |
   |       |             |     36     |            |            |
   |-------+-------------+------------+------------+------------|
   | 72MB  | (2) 8M x 36 |  (2) 1M x  |    None    |    None    |
   |       |             |     36     |            |            |
   |-------+-------------+------------+------------+------------|
   | 80MB  | (2) 8M x 36 |  (2) 2M x  |    None    |    None    |
   |       |             |     36     |            |            |
   |-------+-------------+------------+------------+------------|
   | 96MB  | (2) 8M x 36 |  (2) 4M x  |    None    |    None    |
   |       |             |     36     |            |            |
   |-------+-------------+------------+------------+------------|
   | 96MB  | (2) 4M x 36 |  (2) 4M x  |  (2) 4M x  |    None    |
   |       |             |     36     |     36     |            |
   |-------+-------------+------------+------------+------------|
   | 128MB |  (2) 16M x  |    None    |    None    |    None    |
   |       |     36      |            |            |            |
   |-------+-------------+------------+------------+------------|
   | 128MB | (2) 8M x 36 |  (2) 8M x  |    None    |    None    |
   |       |             |     36     |            |            |
   |-------+-------------+------------+------------+------------|
   | 128MB | (2) 4M x 36 |  (2) 4M x  |  (2) 4M x  |  (2) 4M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 136MB |  (2) 16M x  |  (2) 1M x  |    None    |    None    |
   |       |     36      |     36     |            |            |
   |-------+-------------+------------+------------+------------|
   | 144MB |  (2) 16M x  |  (2) 2M x  |    None    |    None    |
   |       |     36      |     36     |            |            |
   |-------+-------------+------------+------------+------------|
   | 160MB |  (2) 16M x  |  (2) 4M x  |    None    |    None    |
   |       |     36      |     36     |            |            |
   |-------+-------------+------------+------------+------------|
   | 192MB |  (2) 16M x  |  (2) 8M x  |    None    |    None    |
   |       |     36      |     36     |            |            |
   |-------+-------------+------------+------------+------------|
   | 192MB | (2) 8M x 36 |  (2) 8M x  |  (2) 8M x  |    None    |
   |       |             |     36     |     36     |            |
   |-------+-------------+------------+------------+------------|
   | 224MB |  (2) 16M x  |  (2) 4M x  |  (2) 4M x  |  (2) 4M x  |
   |       |     36      |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 256MB |  (2) 16M x  | (2) 16M x  |    None    |    None    |
   |       |     36      |     36     |            |            |
   |-------+-------------+------------+------------+------------|
   | 256MB | (2) 8M x 36 |  (2) 8M x  |  (2) 8M x  |  (2) 8M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 272MB |  (2) 16M x  | (2) 16M x  |  (2) 1M x  |  (2) 1M x  |
   |       |     36      |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 288MB |  (2) 16M x  | (2) 16M x  |  (2) 2M x  |  (2) 2M x  |
   |       |     36      |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 320MB |  (2) 16M x  | (2) 16M x  |  (2) 4M x  |  (2) 4M x  |
   |       |     36      |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 384MB |  (2) 16M x  | (2) 16M x  | (2) 16M x  |    None    |
   |       |     36      |     36     |     36     |            |
   |-------+-------------+------------+------------+------------|
   | 512MB |  (2) 16M x  | (2) 16M x  | (2) 16M x  | (2) 16M x  |
   |       |     36      |     36     |     36     |     36     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |            Size            |              SL1              |
   |----------------------------+-------------------------------|
   |            0KB             |         Not installed         |
   |----------------------------+-------------------------------|
   |           512KB            |    512KB module installed     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 VIDEO MEMORY CONFIGURATION                 |
   |------------------------------------------------------------|
   | Note: The location of the video memory is unidentified.    |
   +------------------------------------------------------------+

   +---------------------------------------------------------------+
   |                      CPU SPEED SELECTION                      |
   |---------------------------------------------------------------|
   | CPU  |Clock|Multiplier|X400/pins|X400/pins|X400/pins|X400/pins|
   |speed |speed|          |  1 & 2  |  3 & 4  |  5 & 6  |  7 & 8  |
   |------+-----+----------+---------+---------+---------+---------|
   |100MHz|66MHz|   1.5x   |  Open   | Closed  |  Open   |  Open   |
   |------+-----+----------+---------+---------+---------+---------|
   |133MHz|66MHz|    2x    |  Open   | Closed  | Closed  |  Open   |
   |------+-----+----------+---------+---------+---------+---------|
   |166MHz|66MHz|   2.5x   |  Open   | Closed  | Closed  | Closed  |
   +---------------------------------------------------------------+