Asus Motherboard P5ND2 User manual

Motherboard
P5ND2

ii
E2493
First Edition
April 2006
Copyright © 2006 ASUSTeK COMPUTER INC. All Rights Reserved.
No part of this manual, including the products and software described in it, may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language in any form
or by any means, except documentation kept by the purchaser for backup purposes, without the
express written permission of ASUSTeK COMPUTER INC. (“ASUS”).
Product warranty or service will not be extended if: (1) the product is repaired, modied or
altered, unless such repair, modication of alteration is authorized in writing by ASUS; or (2)
the serial number of the product is defaced or missing.
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES
OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE
LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
(INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE
OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR
ERROR IN THIS MANUAL OR PRODUCT.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED
FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME
WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY
ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR
INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS
AND SOFTWARE DESCRIBED IN IT.
Products and corporate names appearing in this manual may or may not be registered
trademarks or copyrights of their respective companies, and are used only for identication or
explanation and to the owners’ benet, without intent to infringe.

iii
Contents
Notices ................................................................................................ vi
Safety information ..............................................................................vii
About this guide.................................................................................viii
P5ND2 specications summary............................................................ x
Chapter 1: Product introduction
1.1 Welcome! .............................................................................. 1-2
1.2 Package contents ................................................................. 1-2
1.3 Special features .................................................................... 1-3
1.3.1 Product highlights ................................................... 1-3
1.3.2 Innovative ASUS features ....................................... 1-5
1.4 Before you proceed .............................................................. 1-6
1.5 Motherboard overview .......................................................... 1-7
1.5.1 Placement direction ................................................ 1-7
1.5.2 Screw holes............................................................. 1-7
1.5.3 Motherboard layout ................................................ 1-8
1.6 Central Processing Unit (CPU) .............................................. 1-9
1.6.1 Installing the CPU .................................................... 1-9
1.6.2 Installing the CPU heatsink and fan......................... 1-9
1.6.3 Uninstalling the CPU heatsink and fan................... 1-14
1.7 System memory.................................................................. 1-16
1.7.1 Overview ............................................................... 1-16
1.7.2 Memory congurations ......................................... 1-16
1.7.3 Installing a DIMM ................................................... 1-20
1.7.4 Removing a DIMM.................................................. 1-20
1.8 Expansion slots ................................................................... 1-21
1.8.1 Installing an expansion card .................................. 1-21
1.8.2 Conguring an expansion card .............................. 1-21
1.8.3 Interrupt assignments........................................... 1-22
1.8.4 PCI slots ................................................................ 1-23
1.8.5 PCI Express x1 slot ............................................... 1-23
1.8.6 PCI Express x16 slot ............................................. 1-23
1.9 Jumpers .............................................................................. 1-24
1.10 Connectors ......................................................................... 1-26
1.10.1 Rear panel connectors .......................................... 1-26
1.10.2 Internal connectors ............................................... 1-27

iv
Contents
Chapter 2: BIOS setup
2.1 Managing and updating your BIOS ........................................ 2-2
2.1.1 Creating a bootable oppy disk .............................. 2-2
2.1.2 Updating the BIOS................................................... 2-3
2.1.3 Saving the current BIOS le .................................... 2-5
2.1.4 ASUS CrashFree BIOS 2 utility ................................ 2-6
2.1.5 ASUS EZ Flash utility............................................... 2-8
2.1.6 ASUS Update utility ................................................ 2-9
2.2 BIOS setup program............................................................ 2-12
2.2.1 BIOS menu screen ................................................. 2-13
2.2.2 Menu bar ............................................................... 2-13
2.2.3 Legend bar............................................................ 2-14
2.2.4 Menu items ........................................................... 2-14
2.2.5 Sub-menu items.................................................... 2-14
2.2.6 Conguration elds ............................................... 2-14
2.2.7 Pop-up window...................................................... 2-15
2.2.8 General help .......................................................... 2-15
2.3 Main menu........................................................................... 2-16
2.3.1 System Time ........................................................ 2-16
2.3.2 System Date ....................................................... 2-16
2.3.3 Legacy Diskette A .............................................. 2-16
2.3.4 Primary and Secondary IDE Master/Slave ............. 2-17
2.3.5 First, Second, Third, Fourth SATA Master ............ 2-19
2.3.6 HDD SMART Monitoring......................................... 2-20
2.3.7 Installed Memory................................................... 2-20
2.3.8 Usable Memory...................................................... 2-20
2.4 Advanced menu .................................................................. 2-21
2.4.1 JumperFree Conguration..................................... 2-21
2.4.2 CPU Conguration ................................................. 2-26
2.4.3 Chipset.................................................................. 2-28
2.4.4 PCIPnP ................................................................... 2-30
2.4.5 Onboard Devices Conguration............................. 2-30
2.4.6 USB Conguration ................................................. 2-34
2.5 Power menu ........................................................................ 2-35
2.5.1 ACPI Suspend Type ............................................. 2-35
2.5.2 ACPI APIC Support .............................................. 2-35

v
Contents
2.5.3 APM Conguration ................................................ 2-36
2.5.4 Hardware Monitor.................................................. 2-38
2.6 Boot menu .......................................................................... 2-39
2.6.1 Boot Device Priority .............................................. 2-39
2.6.2 Removable Drives.................................................. 2-40
2.6.3 Boot Settings Conguration ................................ 2-40
2.6.4 Security................................................................. 2-42
2.7 Exit menu............................................................................ 2-44
Chapter 3:Software Support
3.1 Installing an operating system.............................................. 3-2
3.2 Support CD information ........................................................ 3-2
3.2.1 Runninig the support CD....................................................... 3-2
3.2.2 Drivers menu......................................................................... 3-3
3.2.3 Utilities menu........................................................................ 3-4
3.2.4 Make Disk menu .................................................................... 3-5
3.2.5 Manuals menu ....................................................................... 3-6
3.2.6 ASUS Contact information.................................................... 3-7

vi
Notices
Federal Communications Commission Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions:
• This device may not cause harmful interference, and
• This device must accept any interference received including interference
that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference
in a residential installation. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in accordance with
manufacturer’s instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will
not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment to an outlet on a circuit different from that to
which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise
emissions from digital apparatus set out in the Radio Interference
Regulations of the Canadian Department of Communications.
This class B digital apparatus complies with Canadian ICES-003.
The use of shielded cables for connection of the monitor to the graphics
card is required to assure compliance with FCC regulations. Changes
or modications to this unit not expressly approved by the party
responsible for compliance could void the user’s authority to operate
this equipment.

vii
Safety information
Electrical safety
• To prevent electrical shock hazard, disconnect the power cable from
the electrical outlet before relocating the system.
• When adding or removing devices to or from the system, ensure that
the power cables for the devices are unplugged before the signal
cables are connected. If possible, disconnect all power cables from the
existing system before you add a device.
• Before connecting or removing signal cables from the motherboard,
ensure that all power cables are unplugged.
• Seek professional assistance before using an adpater or extension
cord. These devices could interrupt the grounding circuit.
• Make sure that your power supply is set to the correct voltage in your
area. If you are not sure about the voltage of the electrical outlet you
are using, contact your local power company.
• If the power supply is broken, do not try to x it by yourself. Contact
a qualied service technician or your retailer.
Operation safety
• Before installing the motherboard and adding devices on it, carefully
read all the manuals that came with the package.
• Before using the product, make sure all cables are correctly connected
and the power cables are not damaged. If you detect any damage,
contact your dealer immediately.
• To avoid short circuits, keep paper clips, screws, and staples away from
connectors, slots, sockets and circuitry.
• Avoid dust, humidity, and temperature extremes. Do not place the
product in any area where it may become wet.
• Place the product on a stable surface.
• If you encounter technical problems with the product, contact a
qualied service technician or your retailer.
The symbol of the crossed out wheeled bin indicates that the product
(electrical and electronic equipment) should not be placed in municipal
waste. Check local regulations for disposal of electronic products.

viii
About this guide
This user guide contains the information you need when installing and
conguring the motherboard.
How this guide is organized
This guide contains the following parts:
• Chapter 1: Product introduction
This chapter describes the features of the motherboard and the new
technology it supports.
• Chapter 2: BIOS setup
This chapter tells how to change system settings through the BIOS
Setup menus. Detailed descriptions of the BIOS parameters are also
provided.
• Chapter 3: Software support
This chapter describes the contents of the support CD that comes
with the motherboard package.
Where to find more information
Refer to the following sources for additional information and for product
and software updates.
1. ASUS websites
The ASUS website provides updated information on ASUS hardware
and software products. Refer to the ASUS contact information.
2. Optional documentation
Your product package may include optional documentation, such as
warranty yers, that may have been added by your dealer. These
documents are not part of the standard package.

ix
Conventions used in this guide
To make sure that you perform certain tasks properly, take note of the
following symbols used throughout this manual.
Typography
Bold text Indicates a menu or an item to select.
Italics Used to emphasize a word or a phrase.
<Key> Keys enclosed in the less-than and greater-than
sign means that you must press the enclosed
key.
Example: <Enter> means that you must press
the Enter or Return key.
<Key1>+<Key2>+<Key3> If you must press two or more keys
simultaneously, the key names are linked with
a plus sign (+).
Example: <Ctrl>+<Alt>+<D>
Command Means that you must type the command
exactly as shown, then supply the required
item or value enclosed in brackets.
Example: At the DOS prompt, type the
command line:
afudos /i[lename]
afudos /iP5ND2.ROM
DANGER/WARNING: Information to prevent injury to yourself
when trying to complete a task.
CAUTION: Information to prevent damage to the components
when trying to complete a task.
NOTE: Tips and additional information to help you complete a
task.
IMPORTANT: Instructions that you MUST follow to complete a
task.

x
P5ND2 specications summary
(continued on the next page)
CPU
Chipset
Front Side Bus
Memory
Expansion slots
AI Audio
Storage
Gigabit LAN
USB
Overclocking
features
Special features
LGA775 socket for Intel®Pentium®D/Intel®Pentium®4/
Intel®Celeron®processors
Compatible with Intel®PCG 05B/05A and 04B/04A
processors
Supports Intel®Dual-core Technology
Supports Enhanced Intel SpeedStep®Technology (EIST)
Supports Intel®Hyper-Threading Technology
Northbridge: NVIDIA®C19
Southbridge: NVIDIA®MCP51
800/533 MHz
Dual-channel memory architecture
4 x 240-pin DIMM sockets support unbufferred non-ECC
DDR2 667/533 memory modules
Supports up to 16 GB system memory
1 x PCI Express x16 slot for discrete graphics card
3 x PCI Express x1 slots
2 x PCI slots
ADI®AD1986A 6-channel CODEC
1 x Coaxial S/PDIF out port
Supports Jack Sensing and Enumeration Technology
NVIDIA®MCP51 chipset supports:
- 2 x Ultra DMA 133/100/66
- 4 x Serial ATA 3Gb/s devices
- RAID 0, RAID 1, RAID 0+1, RAID 5 and JBOD
Realtek®RTL8111B Gigabit LAN controller
- AI NET
Supports up to 8 USB 2.0 ports
CPU Lock Free
ASUS AI Overclocking (Intelligent Frequency Tuner)
Precision Tweaker supports:
- DIMM voltage: 4-step DRAM voltage control
- Core voltage: Adjustable CPU voltage at 0.0125 V
- Stepless Frequency Selection (SFS) allows FSB
tuning from 133MHz to 400 MHz at 1MHz
increment
Adjustable FSB/DDR2/PCIe frequencies with xed 33Hz
PCI frequencies
ASUS CrashFree BIOS 2
ASUS MyLogo2
ASUS EZ Flash

xi
4 MB Flash ROM, Award BIOS, PnP, DMI2.0, SM BIOS 2.3,
WfM2.0, ASUS EZ Flash, ASUS CrashFree BIOS2
ATX power supply (with 24-pin and 4-pin 12V plugs)
ATX 12V 2.0 compliant
1 x Parallel port
1 x Serial port
1 x LAN (RJ-45) ports
USB 2.0 ports
1 x Coaxial S/PDIF Out port
1 x PS/2 keyboard port
1 x PS/2 mouse port
6-channel audio ports
1 x Floppy disk drive connector
2 x IDE connectors
4 x Serial ATA connectors
1 x 24-pin ATX power connector
1 x 4-pin ATX 12 V power connector
2 x USB connectors for additional four USB 2.0 ports
1 x S/PDIF connector
2 x Internal audio connectors (CD, AUX)
1 x GAME connector
1 x Chassis intrusion connector
1 x Front panel audio connector
CPU, Chassis, Power fan connectors
System panel connector
Device drivers
ASUS PC Probe II
ASUS Update
ASUS Screen saver
Anti-Virus software
ATX form factor: 12 in x 8 in
BIOS features
Power Requirement
Rear panel
Internal connectors
Support CD
contents
Form Factor
P5ND2 specications summary
* Specications are subject to change without notice.

xii

ASUS P5ND2 1-1
1
Product
introduction
This chapter describes the motherboard
features and the new technologies
it supports.

1-2 Chapter 1: Product introduction
1.1 Welcome!
Thank you for buying an ASUS®P5ND2 motherboard!
The motherboard delivers a host of new features and latest technologies,
making it another standout in the long line of ASUS quality motherboards!
Before you start installing the motherboard, and hardware devices on it,
check the items in your package with the list below.
1.2 Package contents
Check your motherboard package for the following items.
If any of the above items is damaged or missing, contact your retailer.
Motherboard P5ND2
Cables 1 x Serial ATA cable set
1 x Ultra DMA 133/100/66 cable
40-conductor IDE cable
Floppy disk drive cable
Accessories I/O shield
Application CD ASUS motherboard support CD
Documentation User guide

ASUS P5ND2 1-3
1.3 Special features
1.3.1 Product highlights
Latest processor technology
The motherboard comes with a 775-pin surface mount Land Grid Array (LGA)
socket designed for the Intel®Pentium®D, Intel®Pentium®4, and Intel®
Celeron®processors in the 775-land package. The motherboard supports
Intel® processors with 800/533 MHz Front Side Bus (FSB). The motherboard
also supports the Intel®Hyper-Threading Technology, Intel®Dual-Core
Technology and is fully compatible with Intel®05B/05A and 04B/04A
processors. See page 1-9 for details.
Intel®Dual-Core Technology CPU support
The motherboard supports dual-core processors containing two physical
CPU cores with dedicated L2 caches to meet demands for more powerful
processing.
Enhanced Intel SpeedStep®Technology (EIST)
The Enhanced Intel SpeedStep®Technology (EIST) intelligently manages
the CPU resources by automatically adjusting the CPU voltage and core
frequency depending on the CPU loading and system speed or power
requirement.
Dual-channel DDR2 memory support
The motherboard supports DDR2 memory for exible system upgrade and
to meet the higher bandwidth requirements of the latest 3D graphics,
multimedia, and Internet applications. The dual-channel architecture allows
memory bandwidths of up to 8.5 GB/s for DDR2. See page 1-16 for details.
PCI Express™ interface
The motherboard fully supports PCI Express, the latest I/O interconnect
technology that speeds up the PCI bus. PCI Express features point-to-point
serial interconnections between devices and allows higher clockspeeds by
carrying data in packets. This high speed interface is software compatible
with existing PCI specications. See pages 1-23 for details.

1-4 Chapter 1: Product introduction
CPU Lock Free
This feature allows you to adjust the CPU multiplier to 14x. Setting the
appropriate BIOS setting automatically reduces the CPU multiplier value for
more exibility when increasing external FSB.
USB 2.0 technology
The motherboard implements the Universal Serial Bus (USB) 2.0
specication, dramatically increasing the connection speed from the
12 Mbps bandwidth on USB 1.1 to a fast 480 Mbps on USB 2.0. USB 2.0 is
backward compatible with USB 1.1. See pages 1-25 and 1-30 for details.
Serial ATA 3Gb/s technology
The motherboard supports the Serial ATA 3 Gb/s technology through
the Serial ATA interfaces. The Serial ATA 3 Gb/s specication provides
twice the bandwidth of the current Serial ATA products with a host of
new features, including Native Command Queueing (NCQ), and Power
Management (PM) Implementation Algorithm. Serial ATA allows for thinner,
more exible cables with lower pin count, reduced voltage requirement. See
page 1-29 for details.

ASUS P5ND2 1-5
1.3.2 Innovative ASUS features
Precision Tweaker
This feature allows you to ne tune the CPU/memory voltage and gradually
increase the memory Front Side Bus (FSB) and PCI Express frequency at
1MHz increment to achieve maximum system performance.
Fanless Design
The ASUS fanless design allows multi-directional heat ow from major
thermal sources in the motherboard to lower overall system temperature,
resulting in quieter operation and longer system life.
CrashFree BIOS 2
This feature allows you to restore the original BIOS data from the support CD
in case when the BIOS codes and data are corrupted. This protection eliminates
the need to buy a replacement ROM chip. See page 2-6 for details.
ASUS MyLogo2™
This new feature present in the motherboard allows you to personalize and
add style to your system with customizable boot logos. See page 2-41 for
details.

1-6 Chapter 1: Product introduction
Onboard LED
The motherboard comes with a standby power LED. The green LED
lights up to indicate that the system is ON, in sleep mode, or in soft-
off mode. This is a reminder that you should shut down the system
and unplug the power cable before removing or plugging in any
motherboard component. The illustration below shows the location of
the onboard LED.
1.4 Before you proceed
Take note of the following precautions before you install motherboard
components or change any motherboard settings.
• Unplug the power cord from the wall socket before touching any
component.
• Use a grounded wrist strap or touch a safely grounded object or to
a metal object, such as the power supply case, before handling
components to avoid damaging them due to static electricity.
• Hold components by the edges to avoid touching the ICs on them.
• Whenever you uninstall any component, place it on a grounded
antistatic pad or in the bag that came with the component.
• Before you install or remove any component, ensure
that the ATX power supply is switched off or the power cord is
detached from the power supply. Failure to do so may cause severe
damage to the motherboard, peripherals, and/or components.
P5ND2
RSB_PWR
ON
Standby
Power
OFF
Powered
Off
P5ND2 Onboard LED

ASUS P5ND2 1-7
P5ND2
R
1.5 Motherboard overview
Before you install the motherboard, study the conguration of your chassis
to ensure that the motherboard ts into it.
Make sure to unplug the power cord before installing or removing the
motherboard. Failure to do so can cause you physical injury and damage
motherboard components.
Do not overtighten the screws! Doing so can damage the motherboard.
1.5.1 Placement direction
When installing the motherboard, make sure that you place it into the
chassis in the correct orientation. The edge with external ports goes to the
rear part of the chassis as indicated in the image below.
1.5.2 Screw holes
Place six (6) screws into the holes indicated by circles to secure the
motherboard to the chassis.
Place this side towards
the rear of the chassis

1-8 Chapter 1: Product introduction
1.5.3 Motherboard layout
LGA775
DDR2 DIMM_A1 (128 bit,240-pin module)
DDR2 DIMM_A2 (128 bit,240-pin module)
DDR2 DIMM_B1 (128 bit,240-pin module)
DDR2 DIMM_B2 (128 bit,240-pin module)
PCI1
PCI2
PCIEX16
PCIEX1_1
PCIEX1_2
PCIEX1_3
CR2032 3V
Lithium Cell
CMOS Power
4Mb
BIOS
Super I/O
SEC_IDE
PRI_IDE
nVIDIA
Crush19
MCP51
SATA1
SATA2
SATA3
SATA4
AD1986A
RTL8111B
EATXPWR
PWR_FAN
CPU_FAN
ATX12V
CHA_FAN
P5ND2
R
PANEL
USB56
FLOPPY
SB_PWR
AAFP CD AUX
SPDIF_OUT
CHASSIS
USB78
CLRTC
USBPW1234
USBPW78
USBPW56
GAME
USB12
Below:Mic In
Center:Line Out
Top:Line In
PS/2KBMS
T: Mouse
B: Keyboard
COM1
PARALLEL PORT
RJ-45
Top:
USB3
USB4
Bottom:
SPDIF_O1
30.5cm (12.0in)
19.6cm (8.0in)