MOTOROLA, INC.

ATXPII PLUS

Device Type Mainboard
Processor Pentium II (2)
Processor Speed 233/266/300/333MHz
Chip Set Intel 440LX
Audio Chip Set Unidentified
Maximum Onboard Memory 512MB (EDO & SDRAM supported)
Maximum Audio Memory Unidentified
Cache 256/512KB (located on the CPU)
BIOS Unidentified
Dimensions 327mm x 305mm
I/O Options 16-bit ISA slots (2), 32-bit PCI slots (4), AGP slot, ATX power connector, audio in - CD ROM, floppy drive interface, IDE interfaces (2), IR connector, parallel port, line in (2), line out, microphone in, PS/2 keyboard port, PS/2 mouse port, RJ-45 Ethernet connector, SanDisk IDE FlashDrive connector, SCSI interfaces (2), serial interface, serial ports (2), USB interface, USB ports (2), Watchdog timer interface


CONNECTIONS

Purpose

Location

Purpose

Location

Line in J1 Power supply fan power J24
Microphone in J2 Floppy drive interface J27
Line out J3 Watchdog timer programming interface J28
Audio in - CD ROM J4 ATX power connector J29
PS/2 keyboard port J5A IDE interface 1 J30
PS/2 mouse port J5 IDE interface 2 J31
Serial port 2 J6 SanDisk IDE FlashDrive connector J32
Serial port 1 J6A Chassis intrusion connector J36
USB port 2 J7 IR connector J41
USB port 1 J7A Reset connector J43
RJ-45 Ethernet connector J8 USB interface J46
Parallel port J9 ROM emulator board interface (reserved) J47
Line in interface J10 16-bit ISA slot 2 J51
16-bit ISA slot 1 J11 Wide SCSI interface J52
Serial interface J12 Narrow SCSI interface J53
Ethernet LED connector J13 Green PC LED J54/Pins 1 - 3
32-bit PCI slots J14 - J17 Power switch J54/Pins 8 & 9
Intel test port (reserved) J18 IDE interface LED J54/Pins 12 - 15
AGP slot J19 Power LED J54/Pins 17 & 19
System fan power J21 Keylock J54/Pins 21 & 22
CPU2 fan power J22 External speaker

J54/Pins 23 & 26

CPU1 fan power J23    


USER CONFIGURABLE SETTINGS

Function

Label

Position

» USB port 2 (J7) selected J25 Pins 1 & 3, 2 & 4, 9 & 10 closed
  USB interface (J46) selected J25 Pins 3 & 5, 4 & 6, 7 & 8 closed
» Watchdog timer disabled J26 Open
  Watchdog timer enabled J26 Closed

»

CMOS memory normal operation J37 Pins 2 & 3 closed
  CMOS memory clear J37 Pins 1 & 2 closed
» Speaker output is alarm beeps J40 Pins 3 & 5, 4 & 6 closed
  Speaker output is mono audio out J40 Pins 1 & 3, 2 & 4 closed
» Onboard battery selected J45 Pins 1 & 2 closed
  External battery selected J45 Open
» Onboard speaker selected J54 Pins 25 & 26 closed
  External speaker selected J54 Pins 25 & 26 open


DIMM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

8MB

(1) 1M x 64

None

None

None

16MB

(1) 1M x 64

(1) 1M x 64

None

None

16MB

(1) 2M x 64

None

None

None

24MB

(1) 1M x 64

(1) 1M x 64

(1) 1M x 64

None

32MB

(1) 1M x 64

(1) 1M x 64

(1) 1M x 64

(1) 1M x 64

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

80MB

(1) 4M x 64

(1) 4M x 64

(1) 1M x 64

(1) 1M x 64

96MB

(1) 4M x 64

(1) 4M x 64

(1) 4M x 64

None

96MB

(1) 4M x 64

(1) 4M x 64

(1) 2M x 64

(1) 2M x 64

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 64

None

None

None

144MB

(1) 8M x 64

(1) 8M x 64

(1) 1M x 64

(1) 1M x 64

160MB

(1) 8M x 64

(1) 8M x 64

(1) 2M x 64

(1) 2M x 64

192MB

(1) 8M x 64

(1) 8M x 64

(1) 8M x 64

None

192MB

(1) 8M x 64

(1) 8M x 64

(1) 4M x 64

(1) 4M x 64

256MB

(1) 8M x 64

(1) 8M x 64

(1) 8M x 64

(1) 8M x 64

256MB

(1) 16M x 64

(1) 16M x 64

None

None

256MB

(1) 32M x 64

None

None

None

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

384MB

(1) 16M x 64

(1) 16M x 64

(1) 16M x 64

None

384MB

(1) 16M x 64

(1) 16M x 64

(1) 8M x 64

(1) 8M x 64

512MB

(1) 16M x 64

(1) 16M x 64

(1) 16M x 64

(1) 16M x 64

Note: Board supports EDO & SDRAM memory.


CACHE CONFIGURATION

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


GREEN LED/POWER LED SELECTION

LEDs

J33

» Common cathode Pins 2 & 3 closed
  Common anode Pins 1 & 2 closed
  Dual function Open


FLASH BOOT BLOCK SELECTION

Setting

J38 J39
» Write to boot block disabled Closed Pins 1 & 2 closed
  Write to boot block enabled Open Open

Note: J38 write protects the boot block. J39 informs BIOS whether boot block can be written to.


CPU SPEED SELECTION

CPU Speed

Multiplier

SW1/1

SW1/2

SW1/3

SW1/4

 

233MHz

3.5x

Off

Off

On

On

  266MHz 4.0x On On Off On
» 300MHz 4.5x Off On Off On
  333MHz 5.0x On Off Off On


MISCELLANEOUS TECHNICAL NOTES

When only 1 processor is used, a termination card should be installed into the CPU2 slot.