American Megatrends NR115 User manual

NR115
Intel® 845 Motherboard
USER’S MANUAL
Intel® Pentium®4 Processor Motherboard
Rev. 1.0

NR115 Motherboard
Revision History
Revision Date Description
1.0 Initial release of NR115 motherboard user’s manual
Item Checklist
1 NR115 Motherboard
1 Floppy Cable
1 ATA Cable 66/100
1 I/O Shield
1 Heatsink Retention Module
1 CD for Motherboard Driver
NR115 User Manual
Quick Installation Guide
Intel® Pentium® 4 are registered trademark of Intel Corporation.
Copyright © 2001, Lite-On Tech./ System BU

NR115 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
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.

NR115 Motherboard
Table of Contents
Chapter 1. Introduction …………………………………………………………………… 1
Motherboard Specification …………………………………………………………………………. 1
NR115 Motherboard Layout …………………………………………………………………….…. 3
Chapter 2. Hardware Installation Process ………………………………………..4
Installing Central Process Unit (CPU) ……………………………………………………………..4
Installing Memory Modules ………………………………………………………………………… 6
Connecting IDE and Floppy Disk Cables and Drives ……………………………………………7
Installing Expansion Cards ………………………………………………………………………… 9
Connect Power Supply Cable ……………………………………………………………………. 10
I/O Back Panel Introduction ………………………………………………………………………. 11
Jumpers Introduction ……………………………………………………………………………… 13
Chapter 3. AMI® BIOS Setup ………………………………………………………….. 16
Entering Setup ……………………………………………………………………………………... 16
The Main Menu ……………………………………………………………………………………. 16
Standard CMOS Setup …………………………………………………………………………… 17
Advanced CMOS Setup ……….…………………………………………………………………. 18
Advanced Chipset Setup …………………………………………………………………………. 19
Power Management Setup ……………………………………………………………………….. 20
PCI/Plug and Play Setup …………………………………………………………………………. 21
Peripheral Setup …………………………………………………………………………………… 22
Hardware Monitor Setup ………………………………………………………………………….. 23
Auto-Detect Hard Disks …………………………………………………………………………… 24
Change User Password …………………………………………………………………………... 25
Change Supervisor Password ……………………………………………………………………. 26
Auto Configuration with Optimal Settings ……………………………………………………….. 27
Auto Configuration with Fail Safe Settings ……………………………………………………… 28
Save Settings and Exit ……………………………………………………………………………. 29
Exit Without Saving ………………………………………………………………………………... 30

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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 in 478 ball FC-PGA2 package
• Processor socket mPGA478B
• 400 MHz system bus
Cache Memory:
• Processor integrated level-1 cache and level-2 cache.
System Memory:
• Two 184-pin DIMM socket (90 degree, tin plated contact)
• Support PC200/266 DDR SDRAM
• Support 64Mb, 128Mb, 256Mb, and 512Mb DDR_SDRAM devices
• Support minimum 64MB to 2GB maximum
• Support suspend -to-RAM sleep state (ACPI S3)
Core Logic Chipset:
• Inteli845 MCH (Memory Controller Hub) in 593 ball FC-BGA package
• Intel 82801BA ICH2 (I/O Controller Hub 2) in 360 ball EBGA package
• Intel 82802AB 2 Mb FWH (Firmware Hub) or equivalent.
• AGP Controller
• AGP v2.0 compliant.
• Supports 1x/2x/4x AGP signaling and 2x/4x Fast Writes
• Optimized point-to-point topology using 1.5V signaling in 4x mode.
• 66 MHz asynchronous clock AGP-to-Host interface.
PCI bus:
• PCI 2.2 compliant
• PME# and 3.3Vaux signals to support power management.
Audio:
• ADI AD1885 analog CODEC
• AC’97 Revision 2.1 compliant (Integrated in ICH2)
• Three mini-DIN audio jacks (Line-out, Line-in, and Mic-in)
•
•
•
Two audio headers, locking type: CD-in, Aux-in

NR115Motherboard
2
On board EIDE:
• 2x PCI IDE ports supporting up to 4 devices
• Support ATA-33/66/100, PIO up to mode 4
On board I/O:
• Low Pin Count (LPC) 3.3V interface between FWH and ICH2
• 2 serial ports - DB9 (16550 UART).
• 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.
• 3 fan output headers.
• 4 USB Ports: 2 ports with RJ-45/USB connector in back panel, 2 ports with 2X5 header for
front panel connection.
BIOS:
• Plug & Play BIOS (AMI).
• 2Mb Firmware Hub
• ACPI v2.0 – WfM 2.0 – SMBIOS v2.3 – DMI v2.1 – PC2001.
• Auto detect for: CPU Speed – AGP 4X – 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 (SMSC LPC47M192).
• Optional On Board LAN
Expansion Slots:
• 1 AGP Slot (2X/4X mode).
• 3 PCI Slots (including 1 shared PCI/CNR Slot)
Other:
• Front panel I/O 2X9 header, key pin 14.
• On-board buzzer.

NR115Motherboard
3
NR115 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 to VCC
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 VCC O
10 FPSLP* I Front panel sleep button signal
11 IRRX I IRDA serial input
12 GND - Ground
13 GND - Ground
14 KEY - KEY
15 IRTX O IRDA serial output
16 VCC O
17 NC - not connected
18 NC - not connected
.
A
B
C
D
D
E
F
H G
J
K
L
I

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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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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/x72 2 DIMMsx64/x72
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