SIEMENS-NIXDORF INFORMATIONSSYSTEME AG

SYSTEM BOARD D990

Device Type           Mainboard
Processor             Pentium
Processor Speed       90/100/120/133/150/166/200MHz
Chip Set              Unidentified
Video Chip Set        Matrox
Maximum Onboard       256MB (EDO & SDRAM supported)
Memory
Maximum Video Memory  4MB (SGRAM supported)
Cache                 128/256/512KB
BIOS                  Unidentified
Dimensions            305mm x 244mm
I/O Options           32-bit PCI slots (4), floppy drive interface,
                      game/MIDI port, IDE interfaces (2), parallel port,
                      PS/2 mouse port, serial port, VGA feature connector,
                      VGA port, cache slot, IR connector, USB connector,
                      ATX power connector, audio in – CD-ROM
NPU Options           None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  ATX power connector        ATX       Front panel connector      C15

  Voice modem connector       C1       Game/MIDI port             CN1

  Auxiliary in                C2       VGA port                   CN2

  Audio in – CD-ROM           C3       Parallel port              CN3

  Chip card reader            C4       Serial port 1              CN4

  IR connector                C5       USB connector              CN5

  Reset switch                C6       PS/2 mouse port            CN6

  SCSI interface LED          C7       VGA feature connector      CN7

  Soft off power supply       C8       IDE interface 1            CN8

  Chassis fan power           C9       IDE interface 2            CN9

  Speaker                    C10       Floppy drive               CN10
                                       interface

  I2C connector              C11       32-bit PCI slots         PC1 – PC4

  Wake on modem              C13       Cache slot                 SL1
  connector

  Power on connector         C14

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

  »   Factory configured - do not           C12          Unidentified
      alter

  »   Flash BIOS normal operation          SW1/5              Off

      Flash BIOS recovery mode             SW1/5              On

  »   Factory configured - do not          SW1/6              Off
      alter

  »   Factory configured - do not          SW1/7         Unidentified
      alter

  »   Floppy drive write protect           SW1/8              Off
      disabled

      Floppy drive write protect           SW1/8              On
      enabled

             DIMM CONFIGURATION

     Size          Bank 0        Bank 1

      8MB        (1) 1M x 64      None

     16MB        (1) 2M x 64      None

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

     24MB        (1) 2M x 64   (1) 1M x 64

     32MB        (1) 4M x 64      None

     32MB        (1) 2M x 64   (1) 2M x 64

     40MB        (1) 4M x 64   (1) 1M x 64

     48MB        (1) 4M x 64   (1) 2M x 64

     64MB        (1) 8M x 64      None

              DIMM CONFIGURATION (CON’T)

       Size            Bank 0            Bank 1

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

       72MB          (1) 8M x 64       (1) 1M x 64

       80MB          (1) 8M x 64       (1) 2M x 64

       96MB          (1) 8M x 64       (1) 4M x 64

      128MB         (1) 16M x 64          None

      128MB          (1) 8M x 64       (1) 8M x 64

      136MB         (1) 16M x 64       (1) 1M x 64

      144MB         (1) 16M x 64       (1) 2M x 64

      160MB         (1) 16M x 64       (1) 4M x 64

      192MB         (1) 16M x 64       (1) 8M x 64

      256MB         (1) 16M x 64      (1) 16M x 64

            Note: Board accepts EDO & SDRAM memory.

                CACHE CONFIGURATION

           Size                      SL1

          128KB            128KB module installed

          256KB            256KB module installed

          512KB            512KB module installed

                      VIDEO MEMORY CONFIGURATION

          Size                  Bank 0                    V1

          2MB                     2MB                    None

          4MB                     2MB            2MB module installed

                            CPU SPEED SELECTION

    CPU       Clock    Multiplier     SW1/1    SW1/2     SW1/3     SW1/4
   speed     speed

   90MHz     60MHz        1.5x         Off       On       Off       Off

  100MHz     66MHz        1.5x         On       Off       Off       Off

  120MHz     60MHz         2x          Off       On       On        Off

  133MHz     66MHz         2x          On       Off       On        Off

  150MHz     60MHz        2.5x         Off       On       On        On

  166MHz     66MHz        2.5x         On       Off       On        On

  200MHz     66MHz         3x          On       Off       Off       On