Lite-on Tech NR120 User manual

NR120
Intel® 845-G Motherboard
USER’S MANUAL
Intel® Pentium®4 Processor Motherboard
Rev. 1.0

NR120 Motherboard
Revision History
Revision Date Description
1.0 Initial release of NR120 motherboard user’s manual
Item Checklist
1 NR120 Motherboard
1 Floppy Cable
1 ATA Cable 66/100
1 I/O Shield
1 Heatsink Retention Module
1 CD for Motherboard Driver
NR120 User Manual
Quick Installation Guide
Intel® Pentium® 4 are registered trademark of Intel Corporation.
Copyright © 2001, Lite-On Tech./ System BU

NR120 Motherboard
Safety Instructions
Please follow some precautions when operating your computer.
1. Always unplug the power cord when inserting any add-on card or module inside the system.
2. Use a grounded wrist strap before handling computer components. If one is not available, touch both of
your hands to a safely grounded object or to a metal object.
3. Place components on a level grounded antistatic pad or on the packaging that came with the components
whenever the components are separated from the system.
4. Keep equipment away from moisture and humidity.
5. Keep this User’s Manual for future reference.

NR120 Motherboard
Table of Contents
Chapter 1. Introduction …………………………………………………………………… 1
Motherboard Specification …………………………………………………………………………. 1
NR120 Motherboard Layout …………………………………………………………………….…. 4
Chapter 2. Hardware Installation Process ………………………………………..5
Installing Central Process Unit (CPU) ……………………………………………………………..5
Installing Memory Modules ………………………………………………………………………… 7
Connecting IDE and Floppy Disk Cables and Drives ……………………………………………8
Installing Expansion Cards ……………………………………………………………………….. 10
Connect Power Supply Cable ……………………………………………………………………. 11
I/O Back Panel Introduction ………………………………………………………………………. 12
Jumpers Introduction ……………………………………………………………………………… 14
Chapter 3. AMI® BIOS Setup ………………………………………………………….. 18
Entering Setup ……………………………………………………………………………………... 18
The Main Menu ……………………………………………………………………………………. 18
Standard CMOS Setup …………………………………………………………………………… 19
Advanced CMOS Setup ……….…………………………………………………………………. 20
Advanced Chipset Setup …………………………………………………………………………. 21
Power Management Setup ……………………………………………………………………….. 22
PCI/Plug and Play Setup …………………………………………………………………………. 23
Peripheral Setup …………………………………………………………………………………… 24
Hardware Monitor Setup ………………………………………………………………………….. 25
Auto-Detect Hard Disks …………………………………………………………………………… 26
Change User Password …………………………………………………………………………... 27
Change Supervisor Password ……………………………………………………………………. 28
Auto Configuration with Optimal Settings ……………………………………………………….. 29
Auto Configuration with Fail Safe Settings ……………………………………………………… 30
Save Settings and Exit ……………………………………………………………………………. 31
Exit Without Saving ………………………………………………………………………………... 32

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1
Chapter 1 Introduction
Motherboard Specifications
Form Factor:
• Standard µATX 9.6”x 9.6”
Processor:
• Supports single IntelPentium4 Processor or Northwood Processor in 478 ball FC-PGA2
package
• Processor socket mPGA478B/uFC-PGA2
• 400 MHz system bus, capable to enhance processor system bus to 533 MHz with Northwood
processor
• Note: Brookdale-GL only supports 400 MHz system bus
Cache Memory:
• Level 1 and level 2 cache memory is integrated in the processor.
System Memory:
• Support 2 x 184 pin DDR DIMM (200Mhz-PC1600 & 266 MHz-PC2100)
• Memory bandwith up to 2.1 GB/s
• Support 64Mb, 128Mb, 256Mb, and 512Mb SDRAM devices
• Support minimum 64MB to 2GB maximum
• Does not support ECC function
• Support suspend-to-RAM sleep state (ACPI S3)
Core Logic Chipset:
• Intel® Brookdale-G/GL GMCH (Graphics Memory Controller Hub) in 788 ball FC-BGA
package
• Intel® ICH4 (I/O Controller Hub 4) in 421 mBGA package
• Intel® 82802AB 4Mb FWH (Firmware Hub) or equivalent
PCI bus:
• PCI 2.2 compliant
• PME# and 3.3Vaux signals to support power management.
Audio:
• ADI AD1981A analog CODEC
• AC’97 Revision 2.2 compliant (Integrated in ICH4)
• Three mini-DIN audio jacks (Line-out, Line-in, and Mic-in)
• Two audio headers, locking type: CD-in, Aux-in
• Audio header for Mic and head phone (option)
• Built in amplifier for mono-out (option)

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2
Integrated Graphics Controller:
• AGP v2.0 compliant
• Enhance graphic engine to boost 2D/3D performance
• Supports 1x/2x/4x AGP data transfers and 2x/4x Fast Writes
• Optimized point-to-point topology using 1.5V signaling in 4x mode
• Integrated 350 Mhz RAMDAC
• Digital flat panel/TV-out support via ADD (AGP Digital Display) card
• Note: Brookdale-GL only supports ADD card
On board EIDE:
• 2x PCI IDE ports supporting up to 4 devices
• Support ATA-100/66/33, Bus Master IDE and PIO modes
On board I/O:
• Low Pin Count SMC LPC47M192
• 1 serial port - DB9 (16550 UART), header for second serial port (option)
• 1 Parallel Port - DB25 with ECP/EPP support
• 1 Floppy port with 1.2MB, 1.44MB and 2.88MB support
• 1 PS/2 mouse connector, 1 PS/2 keyboard connector
• 2 PWM fan controlled output headers
• 6 USB 2.0 ports: 4 ports with RJ/USB in back panel connection, 2 ports with 2X5 header for
front panel connection
• 1 VGA connector, internal VGA is disabled if a AGP card is inserted
BIOS:
• AMI Plug & Play BIOS
• ACPI v2.0 – WfM 2.0 – SMBIOS v2.3 – DMI v2.1 – PC2001
• Auto detect for: CPU Speed, ATA-100
• Wake-on PS/2 (KB, Mouse) & USB devices
• Rapid Boot support
• WOL, ASF support
• Power management: ACPI S3, S4 support
Additional Features:
• Case intrusion header
• Thermal sensor & CPU monitoring
• NIC with integrated MBA boot (complete WOL support)
• BIOS recovery & Boot-Block overwrite via jumper
• Hardware Monitor Capability (LPC47M192)
• Optional On Board LAN
Expansion Slots:
• 1 AGP 2.0 slot (AGP 4X, 1.5 signaling)
• 3 PCI 2.2 slots (including 1 shared CNR slot)
• 1 CNR slot (option)

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3
Other:
• Front panel I/O 2X10 header, key pin 14
• On-board buzzer

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4
NR120 Motherboard Layout
A CPU Socket G Jumper Connector
B CPU Fan Socket H Front Panel Connector
C Memory Sockets I Front Side USB
D Power Supply Connector J Expansion Slots
E Floppy Connector K Audio Connector
F IDE Connectors L Back Panel Connectors
Front Panel Connector Pin Definition
Pin Signal Name I/O Description
1 HD_PWR O Hard Disk LED pull-up (330 ohms) to +5V
2 HDR_BLNK_GRN O Front panel Green LED signal
3 HDA* O Hard Disk Active LED signal
4 HDR_BLNK_YEL O Front panel Yellow LED signal
5 GND - Ground
6 FPBUT_IN I Front panel On/Off button signal
7 FP_RESET* I Front panel Reset button signal
8 GND - Ground
9 +5V O +5V
10 FPSLP* I Front panel sleep button signal
11 IRRX I IRDA serial input receiver
12 GND - Ground
13 GND - Ground
14 KEY X KEY
15 IRTX O IRDA serial output transmit
16 +5V O +5V(PWRLED Power)
17 NC - not connected
18 NC - not connected
19 NC - not connected
20 GND - Ground
A
B
C
D
E
F
H
G
J
I
D
K L

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Chapter 2 Hardware Installation Process
Installing the Central Process Unit (CPU)
CPU Installation
1. Unlock the CPU socket by pulling the lever up to a 90-degree angle.
2. Position the CPU above the socket such that the marked corner (pin1) matches the corner near the base
of the lever.
3. Place the CPU into the socket. If the CPU is unable to insert properly, check its orientation and attempt
to re-install.
Warning! Do not force the CPU into the socket. Doing so will prompt bending of the pins and create
damage to the CPU.
4. Close the socket by lowering the lever and locking the lever in place.
Step 1
90 degree angle
Step 2
Pin1

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Installing the Central Process Unit (CPU)
cont.
CPU Heat Sink Installation
1. Read the related CPU heat sink user’s manual for more detailed installation procedures.
2. Connect CPU fan power cable into the CPU fan connector on the motherboard.
CPU Fan Connector

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7
Installing Memory Modules
1. Push the white retaining clips on each of the memory socket outwards.
2. Match the notches on the contact edge of the memory module to the ridges in the memory socket.
3. Insert the memory module vertically into place. When properly inserted, the white retaining clips will
move inward to lock in the module.
4. Repeat installation process when adding additional modules.
Total Memory Sizes With Unbuffered DDR DIMM
Devices used on DIMM 1 DIMMx64 2 DIMMsx64
64 Mbit (2Mx8x4 banks) 128 MBytes 256 MBytes
64 Mbit (1Mx16x4 banks) 64 MBytes 128 MBytes
128 Mbit (4Mx8x4 banks) 256 MBytes 512 MBytes
128 Mbit (2Mx16x4 banks) 128 MBytes 256 MBytes
256 Mbit (8Mx8x4 banks) 512 MBytes 1 GByte
256 Mbit (4Mx16x4 banks) 256 MBytes 512 MBytes
512 Mbit (16Mx8x4 banks) 1 GByte 2 GBytes
512 Mbit (8Mx16x4 banks) 512 MBytes 1 GByte
Retaining Clip

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Connecting Floppy Disk and IDE Cables
1. Connecting the floppy disk ribbon cable into the motherboard. The side of the cable with the red
stripe needs to be inserted into the Pin1 side of the floppy disk connector.
2. Connecting the IDE ribbon cable into the motherboard. The side of the cable with the red stripe
should be inserted into Pin1 side of the IDE connector.
IDE Connectors
Red Stripe
to Pin1
Floppy Connector
Red Stripe
to Pin1

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9
Connect Floppy and IDE Drives
NOTE: If installing two IDE devices on the same ribbon cable, one device is to be set as “master” and the
second as “slave”. Please refer to IDE device manuals for master and slave settings.
1. Mount the desired drives into the case.
2. Connect the floppy disk ribbon cable and power cable into the device.
3. Connect the IDE ribbon cable and power cable into the device.
Power Cable
Floppy Disk Drive
Floppy Disk Ribbon Cable
Hard Disk Drive
Power Cable
IDE Ribbon Cable

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10
Installing Expansion Cards
1. Read the related expansion card’s installation instructions before inserting the expansion card into the
motherboard.
2. Remove the slot covers from the chassis case where the expansion cards will be placed.
3. Press the expansion card firmly into the expansion slot of the motherboard.
4. Secure the card with the screw provided.
5. Repeat same procedure when adding additional expansion cards.

NR120 Motherboard
11
Connect the Power Supply Cables
NOTE: The ATX power connector is keyed for proper insertion.
1. Place the plastic clip of the power connector over the plastic tab on the motherboard power connector.
The plastic clip should lock into the plastic tab.
Power Supply Connector
Power Supply Connector

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12
I/O Back Panel Introduction
(1) PS/2 Keyboard and PS/2 Mouse Connector
This connector supports standard PS/2 keyboard and PS/2 mouse.
(2) USB Connector
Before connecting device(s) into the USB connections, determine if devices have a standard interface.
Make sure your computer Operating System (OS) supports the USB controller. If not, contact your OS
or device(s) vendors for more information.
1
2
3
4
PS/2 Mouse Connector (6 pin Female)
PS/2 Keyboard Connector (6 pin Female)
USB 1
USB 2
5

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13
I/O Back Panel Introduction
cont…
(3) Parallel Port and Serial Ports (COM1/VGA)
This connector supports one standard COM port, 1 Parallel port, and VGA port.
Devices (i.e. printer) can be connected into the Parallel port.
Devices (i.e. mouse and modem etc.) can be connected into the serial ports.
(4) USB Connector and LAN RJ45
On Board LAN function (optional)
(5) Audio Connector
Once onboard audio driver has been installed, the speakers may be connected into the Line out jack,
audio devices such as CD-ROM etc., and a microphone into the MIC in jack.
Line In
MIC in
Line Out
Parallel Port (25 pin Female)
COM 1 VGA
Serial Ports (9 pin Male)
USB 3
USB 4
On Board LAN

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14
Jumper Introduction
Jumper Settings
The following graphic shows the meaning of the jumper with cover and without cover.
PIN 1 PIN 1
OFF ON (1-2)
FWH Lock
This jumper allows you to set FWH lock.
Reference: JP2
Connector Type: 1 x 3
JP2 Description Jumper Placement
1-2
FWH Lock Put the jumper cover on pin1 and pin2.
2-3
FWH Unlock (Default) Put the jumper cover on pin2 and pin3.
BIOS Configuration
This jumper allows you to set CPU speed.
Reference: JP1
Connector Type: 1 x 3
JP1 Description Jumper Placement
1-2
Normal Mode (Default) Put the jumper cover on pin1 and pin2.
2-3
BIOS Conf. (save speed) Put the jumper cover on pin2 and pin3.
OPEN
BIOS Recovery Remove jumper from JP1.

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Jumper Introduction
cont….
Clear CMOS
This switch (SW1) allows you to clear the content of the CMOS data and password.
Front Side USB Connector Pin Definition
J22
Front Side USB Connector Pin Definition
Pin Signal Name Description
1 V5+ Front Side USB Port2 VCC
2 V5+ Front Side USB Port1 VCC
3 USB4- Front Side USB Port2
Signal-
4 USB5- Front Side USB Port1
Signal-
5 USB4+ Front Side USB Port2
Signal+
6 USB5+ Front Side USB Port1
Signal+
7 DETECT USB Appliance Detected
8 GND Front Side USB Port1 GND
9 KEY KEY
10 NC Not Connected
USB5-
V5+V5+
USB4-
USB4+ USB5+
DETECT GND
KEY NC

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Jumper Introduction cont….
Wake On Ring (J36) Pin Definition
Pin Description
1 RING
2 GND
COM1 (J2) / COM2 (J34) Pin Definition Pin Description Pin Description
1 DCD 2 RXD
3 TXD 4 DTR
5 GND 6 DSR
7 RTS 8 CTS
9 RI 10 KEY
There will be no-pin in position 10 on motherboard.
Cable will have a key in position 10.
WoL (Wake on LAN, J20) Pin Definition
Pin Description
1 5VSB
2 GND
3 PME#1
RING
1
2
1
2
1