
SIEMENS NIXDORF INFORMATIONSSYSTEME AG

SYSTEM BOARD D983

Processor                Pentium
Processor Speed          150/166/180/200MHz
Chip Set                 Unidentified
Video Chip Set           Cirrus Logic
Maximum Onboard Memory   512MB (EDO supported)
Maximum Video Memory     2MB
Cache                    256/512KB
BIOS                     Phoenix
Dimensions               330mm x 218mm
I/O Options              Floppy drive interface, IDE interfaces (2),
                         parallel port, PS/2 mouse port, serial ports (2),
                         VGA feature connector, VGA port, riser slot, USB
                         connectors (2), power on switch, chip card
                         reader, voice modem/connector, CD line in
                         connector, auxiliary in connector, soft off power
                         supply connector, Game/MIDI/audio connector,
                         fax/modem remote on connector
NPU Options              None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                 Location

  VGA port                   CN1       Floppy drive              CN13
                                       interface

  Parallel port              CN2       IDE interface 2           CN14

  Serial port 2              CN3       Front panel               CN15
                                       connector

  Serial port 1              CN4       Speaker                   CN16

  Chip card reader           CN5       Chassis fan power         CN17

  PS/2 mouse port            CN6       Chassis fan power         CN18

  USB connectors             CN7       SCSI LED                  CN19

  Voice modem/connector      CN8       VGA feature               CN20
                                       connector

  CD line in connector       CN9       Game/MIDI/audio           CN21
                                       connector

  Auxiliary in               CN10      Power on switch           CN22
  connector

  Soft off power supply      CN11      Fax/modem remote on       CN23
  connector                            connector

  IDE interface 1            CN12      Riser slot                 SL1

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     Flash BIOS write protect disabled      SW1/1             Off

      Flash BIOS write protect enabled       SW1/1              On

     Factory configured - do not alter      SW1/2             Off

     Flash BIOS normal operation            SW1/3             Off

      Flash BIOS recovery mode               SW1/3              On

     Floppy drive write protect             SW1/4             Off
      disabled

      Floppy drive write protect             SW1/4              On
      enabled

                            DIMM CONFIGURATION

      Size          Bank 0        Bank 1         Bank 2         Bank 3

      16MB        (1) 2M x 64      None           None           None

      32MB        (1) 2M x 64   (1) 2M x 64       None           None

      32MB        (1) 4M x 64      None           None           None

      48MB        (1) 2M x 64   (1) 2M x 64    (1) 2M x 64       None

      64MB        (1) 2M x 64   (1) 2M x 64    (1) 2M x 64   (1) 2M x 64

      64MB        (1) 4M x 64   (1) 4M x 64       None           None

      64MB        (1) 8M x 64      None           None           None

      96MB        (1) 4M x 64   (1) 4M x 64    (1) 4M x 64       None

     128MB        (1) 4M x 64   (1) 4M x 64    (1) 4M x 64   (1) 4M x 64

     128MB        (1) 8M x 64   (1) 8M x 64       None           None

     128MB         (1) 16M x       None           None           None
                      64

     192MB        (1) 8M x 64   (1) 8M x 64    (1) 8M x 64       None

     256MB        (1) 8M x 64   (1) 8M x 64    (1) 8M x 64   (1) 8M x 64

     256MB         (1) 16M x     (1) 16M x        None           None
                      64            64

     384MB         (1) 16M x     (1) 16M x      (1) 16M x        None
                      64            64             64

     512MB         (1) 16M x     (1) 16M x      (1) 16M x    (1) 16M x 64
                      64            64             64

  Note: Board accepts EDO memory.

                       CACHE CONFIGURATION

  Note: The location of the 256KB/512KB cache is unidentified.

                  VIDEO MEMORY CONFIGURATION

        Size                Bank 0               Bank 1

         1MB                 1MB                  None

         2MB                 1MB             (2) 256K x 16

  Note: Bank 0 is factory installed and is not configurable.

                            CPU SPEED SELECTION

    CPU       Clock    Multiplier     SW1/5    SW1/6     SW1/7     SW1/8
   speed     speed

  150MHz     60MHz        2.5x         Off       On       On        Off

  166MHz     66MHz        2.5x         On        On       On        Off

  180MHz     60MHz         3x          Off       On       Off       On

  200MHz     66MHz         3x          On        On       Off       On

