MOTOROLA, INC.

NLXP55

Device Type                Mainboard
Processor                  Pentium MMX
Processor Speed            233/266/300MHz
Chip Set                   Intel 430HX
Video Chip Set             Cirrus Logic
Maximum Onboard Memory     256MB (EDO supported)
Maximum Video Memory       Unidentified
Cache                      512KB
BIOS                       Unidentified
Dimensions                 284mm x 229mm
I/O Options                Ethernet 10BaseT connector, floppy drive
                           interface, parallel port, PS/2 mouse port,
                           serial ports (2), VGA feature connector, VGA
                           port, USB connector, line in, line out,
                           microphone in

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                 Location

  Line out                     J1       VMI host port             J25
                                        connector

  Line in                      J2       PS/2 mouse port           J27

  Microphone in                J3       VGA feature               J28
                                        connector

  CompactFlash connector       J5       PCI debug connector       J32

  Auxiliary connector          J8       Parallel port             J33A

  Ethernet 10BaseT             J9       VGA port                  J33B
  connector

  USB connector               J14       Serial port 1             J33C

  Serial port 2               J18       PCI debug connector       J34

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

  »   CompactFlash device select master        J4             Closed

      CompactFlash device select slave         J4              Open

  »   Battery not installed                    J6           Pins 2 & 3
                                                              closed

      Battery installed                        J6           Pins 1 & 2
                                                              closed

  »   Speaker tone enabled                     J7           Pins 2 & 3
                                                              closed

      NLX modem tone enabled                   J7           Pins 1 & 2
                                                              closed

  »   GIO2 signal enabled                     J10              Open

      GIO2 signal disabled                    J10             Closed

  »   CMOS memory normal operation            J12              Open

      CMOS memory clear                       J12             Closed

  »   Speaker enabled                         J13             Closed

      Speaker disabled                        J13              Open

  »   GIO0 signal enabled                     J15              Open

      GIO0 signal disabled                    J15             Closed

  »   Boot block write protect disabled       J16           Pins 2 & 3
                                                              closed

      Boot block write protect enabled        J16           Pins 1 & 2
                                                              closed

  »   Flash BIOS write protect disabled       J17              Open

      Flash BIOS write protect enabled        J17             Closed

  »   Standard PC tone enabled                J20         Pins 3 & 5, 4 &
                                                             6 closed

      Tone from audio IC enabled              J20         Pins 1 & 3, 2 &
                                                             4 closed

  »   Watchdog timer disabled                 J26              Open

      Watchdog timer enabled                  J26             Closed

  »   On board video enabled                  J29              Open

      On board video disabled                 J29             Closed

                    USER CONFIGURABLE SETTINGS (CON’T)

                Function                    Label           Position

  »   Video port device not installed        J30              Open

      Video port device installed            J30             Closed

  »   VGA feature connector enabled          J31             Closed

      VGA feature connector disabled         J31              Open

              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

      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 memory.

                 CACHE CONFIGURATION

  Note: The location of the cache is unidentified.

                 VIDEO MEMORY CONFIGURATION

  Note: The location of the video memory is unidentified.

                            CPU SPEED SELECTION

  CPU speed     Clock     Multiplier       J22         J23         J24
               speed

   233MHz      66MHz         3.5x         Open        Open        Open

   266MHz      66MHz          4x         Closed       Open       Closed

   300MHz      66MHz         4.5x        Closed      Closed      Closed

                           CPU VOLTAGE SELECTION

               Voltage                                 J11

                   2.2v                         Pins 3 & 4 closed

  »                2.8v                         Pins 7 & 8 closed