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# 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 256MB (EDO supported)
Memory
Maximum Video Unidentified
Memory
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
IMG IMG 1
+------------------------------------------------------------+
| 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 | J5 | PCI debug | J32 |
| connector | | connector | |
|--------------------+----------+-----------------+----------|
| Auxiliary | J8 | Parallel port | J33A |
| connector | | | |
|--------------------+----------+-----------------+----------|
| Ethernet 10BaseT | J9 | VGA port | J33B |
| connector | | | |
|--------------------+----------+-----------------+----------|
| USB connector | J14 | Serial port 1 | J33C |
|--------------------+----------+-----------------+----------|
| Serial port 2 | J18 | PCI debug | J34 |
| | | connector | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | CompactFlash device select | J4 | Closed |
| | master | | |
|---+---------------------------------+-------+--------------|
| | CompactFlash device select | J4 | Open |
| | slave | | |
|---+---------------------------------+-------+--------------|
| » | 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 | J16 | Pins 2 & 3 |
| | disabled | | closed |
|---+---------------------------------+-------+--------------|
| | Boot block write protect | J16 | Pins 1 & 2 |
| | enabled | | closed |
|---+---------------------------------+-------+--------------|
| » | Flash BIOS write protect | J17 | Open |
| | disabled | | |
|---+---------------------------------+-------+--------------|
| | Flash BIOS write protect | J17 | Closed |
| | enabled | | |
|---+---------------------------------+-------+--------------|
| » | 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 | Clock | Multiplier | J22 | J23 | J24 |
| speed | 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 |
+------------------------------------------------------------+