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)

NR120Motherboard
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