SIEMENS NIXDORF

SYSTEM BOARD D992 (SINGLE)

Device Type              Mainboard
Processor                Pentium II
Processor Speed          233/266/300/333MHz
Chip Set                 Intel 440FX
Video Chip Set           Cirrus Logic
Maximum Onboard Memory   512MB
Maximum Video Memory     2MB
Cache                    256/512KB (located on Pentium II CPU)
BIOS                     Unidentified
Dimensions               305mm x 244mm
I/O Options              32-bit PCI slots (6), floppy drive interface, IDE
                         interface, Wide Ultra SCSI interface, parallel
                         port, PS/2 mouse port, serial ports (2), VGA
                         port, VRM connector, wake on modem connector

[Image]

                                CONNECTIONS

  Purpose                  Location     Purpose                 Location

  ATX power connector         ATX       Front panel               C12
                                        connector

  SMM connector               C1        PS/2 mouse port           CN1

  Chassis fan power           C2        Serial port 2             CN2

  Chassis fan power           C3        Serial port 1             CN3

  Speaker                     C4        Parallel port             CN4

  Control panel               C5        VGA port                  CN5
  connector

  Temperature sensor          C6        Floppy drive              CN6
                                        interface

  SCSI interface LED          C7        Ultra Wide SCSI           CN7
                                        interface

  Wake on modem               C8        IDE interface             CN8
  connector

  Can bus control             C9        32-bit PCI slots       PC1 – PC6
  connector 1

  Can bus control             C10       VRM connector             VRM1
  connector 2

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

  »   Flash BIOS normal operation            SW1/1             Off

      Flash BIOS recovery mode               SW1/1              On

  »   Factory configured - do not alter      SW1/2             Off

  »   Flash BIOS write protect disabled      SW1/3             Off

      Flash BIOS write protect enabled       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

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

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

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

     72MB        (1) 8M x 64   (1) 1M x 64        None           None

     80MB        (1) 8M x 64   (1) 2M x 64        None           None

     96MB        (1) 8M x 64   (1) 4M x 64        None           None

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

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

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

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

                        DIMM CONFIGURATION (CON’T)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

     136MB       (1) 16M x 64  (1) 1M x 64        None           None

     144MB       (1) 16M x 64  (1) 2M x 64        None           None

     152MB       (1) 16M x 64  (1) 1M x 64    (1) 1M x 64    (1) 1M x 64

     160MB       (1) 16M x 64  (1) 4M x 64        None           None

     176MB       (1) 16M x 64  (1) 2M x 64    (1) 2M x 64    (1) 2M x 64

     192MB       (1) 16M x 64  (1) 8M x 64        None           None

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

     224MB       (1) 16M x 64  (1) 4M x 64    (1) 4M x 64    (1) 4M x 64

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

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

     272MB       (1) 16M x 64  (1) 16M x 64   (1) 1M x 64    (1) 1M x 64

     288MB       (1) 16M x 64  (1) 16M x 64   (1) 2M x 64    (1) 2M x 64

     320MB       (1) 16M x 64  (1) 16M x 64   (1) 4M x 64    (1) 4M x 64

     320MB       (1) 16M x 64  (1) 8M x 64    (1) 8M x 64    (1) 8M x 64

     352MB       (1) 32M x 64  (1) 4M x 64    (1) 4M x 64    (1) 4M x 64

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

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

                     CACHE CONFIGURATION

  Note: 256KB/512KB cache is located on the Pentium II CPU.

            VIDEO MEMORY CONFIGURATION

      Size            Bank 0           Bank 1

       1MB        (2) 256K x 16         None

       2MB        (2) 256K x 16    (2) 256K x 16

                            CPU SPEED SELECTION

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

  233MHz     66MHz        3.5x         On       Off       Off       On

  266MHz     66MHz         4x          On        On       On        Off

  300MHz     66MHz        4.5x         On       Off       On        Off

  333MHz     66MHz         5x          On        On       Off       Off