SIEMENS NIXDORF INFORMATIONSSYSTEME AG

SYSTEM BOARD D931

Processor                Pentium Pro
Processor Speed          150/166/180/200MHz
Chip Set                 Unidentified
Video Chip Set           None
Maximum Onboard Memory   256MB
Maximum Video Memory     None
Cache                    256KB (on Pentium Pro CPU)
BIOS                     Phoenix
Dimensions               330mm x 218mm
I/O Options              Floppy drive interface, IDE interfaces (2),
                         parallel port, PS/2 mouse port, serial ports (2),
                         serial port TTL, riser slot, IR connectors (2),
                         remote on connector, chipcard reader connector,
                         soft off power supply connector
NPU Options              None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                 Location

  PS/2 mouse port           CN1        IDE interface 2           CN11

  Serial port 1             CN2        Speaker                    J1

  Serial port 2             CN3        Front panel                J2
                                       connector

  Parallel port             CN4        Front panel                J3
                                       connector

  Serial port 2 TTL         CN5        On/off switch              J4

  Remote on connector       CN6        Chassis fan power          J5

  Chipcard reader           CN7        IR connector               J6
  connector

  Soft off power            CN8        Front panel led/IR         J7
  supply connector                     connector

  Floppy drive              CN9        Riser slot                SL1
  interface

  IDE interface 1          CN10

            Note: If CN7 is used, no device may be connected to CN2. If
            CN5 is used, no device may be connected to CN3.

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

  »   Floppy drive write protect            FDP              Open
      disabled

      Floppy drive write protect            FDP             Closed
      enabled

  »   BIOS write protect disabled           FLP              Open

      BIOS write protect enabled            FLP             Closed

  »   BIOS started from the system          RCV              Open
      module

      BIOS started from floppy and          RCV             Closed
      restores BIOS

  »   Factory configured - do not           SKP          Unidentified
      alter

             DRAM CONFIGURATION

     Size          Bank 0        Bank 1

      8MB        (2) 1M x 36      None

     16MB        (2) 2M x 36      None

     16MB        (2) 1M x 36   (2) 1M x 36

     24MB        (2) 2M x 36   (2) 1M x 36

     24MB        (2) 1M x 36   (2) 2M x 36

     32MB        (2) 4M x 36      None

     32MB        (2) 2M x 36   (2) 2M x 36

     40MB        (2) 4M x 36   (2) 1M x 36

     40MB        (2) 1M x 36   (2) 4M x 36

     48MB        (2) 4M x 36   (2) 2M x 36

     48MB        (2) 2M x 36   (2) 4M x 36

     64MB        (2) 8M x 36      None

     64MB        (2) 4M x 36   (2) 4M x 36

     72MB        (2) 8M x 36   (2) 1M x 36

     72MB        (2) 1M x 36   (2) 8M x 36

     80MB        (2) 8M x 36   (2) 2M x 36

     80MB        (2) 2M x 36   (2) 8M x 36

     96MB        (2) 8M x 36   (2) 4M x 36

     96MB        (2) 4M x 36   (2) 8M x 36

     128MB       (2) 8M x 36   (2) 8M x 36

          DRAM CONFIGURATION (CON’T)

      Size          Bank 0          Bank 1

     128MB        (2) 16M x 36       None

     136MB        (2) 16M x 36   (2) 1M x 36

     144MB        (2) 16M x 36   (2) 2M x 36

     160MB        (2) 16M x 36   (2) 4M x 36

     192MB        (2) 16M x 36   (2) 8M x 36

     256MB        (2) 16M x 36   (2) 16M x 36

                   CACHE CONFIGURATION

  Note: 256KB cache is located on the Pentium Pro CPU.

                            CPU SPEED SELECTION

  Speed       CF0      CF1       CF2       CF3       F0       F1     F2

  150MHz    Closed    Closed    Closed    Open      Open     Open    Open

  166MHz    Closed    Closed    Closed    Open     Closed    Open    Open

  180MHz    Closed    Closed     Open    Closed     Open     Open    Open

  200MHz    Closed    Closed     Open    Closed    Closed    Open    Open