Asus P5N-EM User Manual

Motherboard
P5N-EM HDMI
ii
Copyright © 2008 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.
E3488
First Edition March 2008

iii

Contents

Notices ......................................................................................................... vi
Safety information ..................................................................................... vii
About this guide ....................................................................................... viii
P5N-EM HDMI specications summary ..................................................... x
Chapter 1: Product introduction
1.1 Welcome! ...................................................................................... 1-2
1.2 Package contents .........................................................................
1-2
1.3 Special features ............................................................................
1-2
1.3.1 Product highlights ...........................................................
1-2
1.3.2 ASUS Special features ...................................................
1-4
1.4 Before you proceed .....................................................................
1-5
1.5 Motherboard overview .................................................................
1-6
1.5.1 Placement direction ........................................................
1-6
1.5.2 Screw holes ....................................................................
1-6
1.5.3 Motherboard layout .........................................................
1-7
1.6 Central Processing Unit (CPU) ...................................................
1-8
1.6.1 Installing the CPU ...........................................................
1-8
1.6.2 Installling the CPU heatsink and fan ..............................
1-11
1.6.3 Uninstalling the CPU heatsink and fan .........................
1-13
1.7 System memory .........................................................................
1-15
1.7.1 Overview .......................................................................
1-15
1.7.2 Memory congurations ..................................................
1-15
1.7.3 DDR2 Qualied Vendors List ........................................
1-16
1.7.4 Installing a DIMM ..........................................................
1-19
1.7.5 Removing a DIMM ........................................................
1-19
1.8 Expansion slots ..........................................................................
1-20
1.8.1 Installing an expansion card .........................................
1-20
1.8.2 Conguring an expansion card .....................................
1-20
1.8.3 Interrupt assignments ...................................................
1-21
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
iv

Contents

1.10.2 Internal connectors ....................................................... 1-28
Chapter 2: BIOS setup
2.1 Managing and updating your BIOS ............................................ 2-2
2.1.1 ASUS Update utility ........................................................
2-2
2.1.2 Creating a bootable oppy disk .......................................
2-5
2.1.3 ASUS EZ Flash 2 utility ...................................................
2-6
2.1.4 Updating the BIOS ..........................................................
2-7
2.1.5 Saving the current BIOS le ............................................
2-9
2.1.6 ASUS CrashFree BIOS 2 utility ....................................
2-10
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 IDE Master/Slave .............................................
2-17
2.3.5 SATA 1-4 .......................................................................
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 ...................................................................
2-21
2.4.2 CPU Conguration ........................................................
2-24
2.4.3 Chipset ..........................................................................
2-25
2.4.4 PCIPnP .........................................................................
2-25
2.4.5 Onboard Device Conguration ......................................
2-26
2.4.6 USB Conguration ........................................................
2-29
2.5 Power menu ................................................................................
2-30
v

Contents

2.5.1 ACPI Suspend Type ..................................................... 2-30
2.5.2 ACPI APIC Support ......................................................
2-30
2.5.3 APM Conguration ........................................................
2-30
2.5.4 Hardware Monitor .........................................................
2-33
2.6 Boot menu ..................................................................................
2-34
2.6.1 Boot Device Priority ......................................................
2-34
2.6.2 Removable Drives .........................................................
2-34
2.6.3 Hard Disk Drives ...........................................................
2-35
2.6.4 Boot Settings Conguration .........................................
2-35
2.6.5 Security .........................................................................
2-37
2.7 Tools menu .................................................................................
2-38
ASUS EZ Flash 2 ......................................................................... 2-38
2.8 Exit menu ....................................................................................
2-39
Chpater 3: Software Support
3.1 Installing an operating system ................................................... 3-2
3.2 Support CD information ..............................................................
3-2
3.2.1 Running 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 Manual menu ..................................................................
3-6
3.2.6 ASUS Contact information ..............................................
3-7
3.2.7 Other information ............................................................
3-7
3.3 Creating a RAID driver disk .........................................................
3-9
Appendix: CPU features
A.1 Enhanced Intel SpeedStep® Technology (EIST) ........................A-2
A.1.1 System requirements ......................................................
A-2
A.1.2 Using the EIST ................................................................
A-2
A.2 Intel
®
Hyper-Threading Technology ...........................................A-4
Using the Hyper-Threading Technology ........................................ A-4

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.
This symbol of the crossed out wheeled bin indicates that the product (electrical and electronic equipment, Mercury-containing button cell battery) 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 manual contains the following parts:
Chapter 1: Product introduction
This chapter describes the features of the motherboard and the new technology it supports. It also lists the hardware setup procedures that you have to perform when installing system components. It includes description of the jumpers and connectors on the motherboard.
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.
Appendix: CPU features
This Appendix describes the CPU features that the motherboard supports.
Where to nd 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.
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.

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:
format A:/S
x
P5N-EM HDMI specications summary
(continued on the next page)
CPU LGA775 socket for Intel® Core™ 2 Quad / Core™ 2 Duo /
Pentium® D / Pentium® 4 / Celeron® processors Compatible with Intel® 06 / 05B / 05A processors Supports Intel® next generation 45nm CPU Supports Enhanced Intel SpeedStep® Technology (EIST) Supports Intel® Hyper-Threading Technology *Refer to www.asus.com for Intel CPU support list
Chipset North Bridge: NVIDIA GeForce 7100 / nForce 630i
Front Side Bus 1333 / 1066 / 800 / 533 MHz
Memory Single-channel memory architecture
3 x 240-pin DIMM sockets support unbufferred non-ECC DDR2-1066 (overclocking) / 800 / 667 / 533 memory
modules Supports up to 4 GB system memory
Expansion Slots 1 x PCI Express x16 slot
1 x PCI Express x1 slot
2 x PCI slots
Audio Realtek ALC883 8-channel CODEC
Supports S/PDIF out interface Supports jack-dectect and Anti Pop Function Supports VISTA Premium OS
Storage Southbridge:
- 1 x Ultra DMA 133
- 4 x Serial ATA 3Gb/s devices
- RAID 0, RAID 1, RAID 0+1, RAID 5, and JBOD conguration
LAN Gb LAN
USB Supports up to 10 USB 2.0 ports (6 ports at mid-board, 4
ports at rear panel
ASUS Special Features ASUS CrashFree BIOS 2
ASUS Q-Fan
ASUS EZ Flash 2 ASUS MyLogo 2
Rear panel 1 x DVI port*
1 x HDMI port* 1 x LAN (RJ-45) port 4 x USB 2.0 / 1.1 ports 1 x VGA port 1 x PS/2 keyboard port (purple) 1 x PS/2 mouse port (green) 8-channel audio I/O ports
Note*: Due to the chipset limitation, simultaneous output for DVI and HDMI is not supported.
xi
P5N-EM HDMI specications summary
Internal connectors 1 x Floppy disk drive connector
1 x CD audio in connector
1 x 24-pin ATX power connector 1 x 4-pin ATX 12 V power connector 3 x USB connectors for additional six USB 2.0 ports 1 x S/PDIF out connector
1 x Chassis intrusion connector 1 x Front panel audio connector 1 x COM connector 1 x LPT connector 1 x CPU Fan connector 1 x Chassis fan connector 1 x Speaker conncetor System panel connector
VGA GeForce 7100 GPU supports maximum resolution of
1920 x1440 bpp (@ 75Hz)
BIOS features 8 MB Flash ROM, Award BIOS, PnP, DMI2.0, WfM2.0,
ACPI v2.0a, SMBIOS 2.5
Power Requirement ATX power supply (with 24-pin and 4-pin 12V plugs)
ATX 12V 2.0 compliant
Manageability WOL, PXE, RPL, WOR by Ring, PME Wake UP
Support CD contents Drivers
ASUS PC Probe II ASUS Update Anti-virus software
Form factor MicroATX Form Factor: 9.6 in x 8.2 in (24.5 cm x 20.8 cm)
*Specications are subject to change without notice.
xii
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® P5N-EM HDMI 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.
Motherboard ASUS P5N-EM HDMI motherboard
Cables 1 x Serial ATA cable 1 x Serial ATA power cable 1 x Ultra DMA 133 / 100 / 66 / 33 cable 1 x Floppy disk drive cable
Accessories I/O shield
Application CDs ASUS motherboard support CD
Documentation User guide
If any of the above items is damaged or missing, contact your retailer.

1.3 Special features

1.3.1 Product highlights

Green ASUS
This motherboard and its packaging comply with the European Union’s Restriction
on the use of Hazardous Substances (RoHS). This is in line with the ASUS vision of creating environment-friendly and recyclable products/packaging to safeguard
consumers’ health while minimizing the impact on the environment.
LGA775 Intel® Quad-core Processor Ready
This motherboard supports the latest powerful and energy efcient processors
from Intel. Intel® Quad-core is based on the Intel Core Microarchitecture process technology that allows users to step up to new levels of gaming experience and multi-tasking performance.
Combined with 1333 / 1066 / 800 of front side bus (FSB), this motherboard guarantees enhanced user experience in the digital home and ofce.
ASUS P5N-EM HDMI 1-3
Intel® Core™2 Processor Ready
This motherboard supports the latest Intel® Core™2 processor in the LGA775
package. With the new Intel® Core™ microarchitecture technology and 1333 / 1066 /
800 MHz FSB, Intel® Core™2 processor is designed to provide powerful and energy efcient performance.
DDR2 memory support
The motherboard supports DDR2 memory that features data transfer rates of 533 / 667 / 800 / 1066 (overclocking) MHz to meet the higher bandwidth requirements of
the latest 3D graphics, multimedia, and Internet applications.
Serial ATA 3 Gb/s technology
This motherboard supports the next-generation hard drives based on the Serial
ATA (SATA) 3 Gb/s storage specication, delivering enhanced scalability and
doubling the bus bandwidth for high-speed data retrieval and saves. Easily backup photos, videos and other entertainment contents to external devices. See page
1-28 for details.
S/PDIF digital sound ready
The motherboard supports the SONY-PHILIPS Digtal Interface function (S/PDIF­out) through the S/PDIF interface at mid-board. It allows to transfer digital audio
without converting to analog format and keeps the best signal quality. See page
1-30 for details.
8-Channel High Denition Audio
Enjoy high-end sound quality on your PC! The onboard 8-channel HD audio (High
Definition Audio, previously codenamed Azalia) CODEC enables high-quality 192KHz / 24-bit audio output, jack-detect feature.
HDMITM Interface
High-Deniton Multimedia Interface (HDMI) is the rst and only industry-supported,
uncompressed, all digital audio and video interface via a single cable and is HDCP compliant allowing playback of HD DVD, Blu-ray Disc and other protected content.

1-4 Chapter 1: Product introduction
DVI Interface
DVI (Digital Visual Interface) provides high visual quality of digital display devices such as LCD monitor. The interface of this motherboard is HDCP compliant, allowing playback of HD DVD, Blu-ray Disc and other protected content.
Dual VGA Output
This motherboard supports Dual-VGA output (RGB & HDMI / DVI). HDMI / DVI
interface is compliant with HDCP.

1.3.2 ASUS Special features

ASUS Q-Fan technology
The ASUS Q-Fan technology smartly adjusts the fan speeds according to the
system loading to ensure quiet, cool, and efcient operation. See page 2-33 for details.
ASUS MyLogo2™
This feature allows you to convert your favorite photo into a 256-color boot logo for a more colorful and vivid image on your screen. See page 2-36 for details.
ASUS EZ Flash 2
EZ Flash 2 is a user-friendly BIOS update utility. Simply press the predefined
hotkey to launch the utility and update the BIOS without entering the OS. Update
your BIOS easily without preparing a bootable diskette or using an OS-based ash utility. See page 2-6 for details.
ASUS 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 BIOS chip. See page 2-10 for details.

ASUS P5N-EM HDMI 1-5

Onboard LED

The motherboard comes with a standby power LED that 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.
P5N-EMHDMI
R
P5N-EM HDMI Onboard LED
SB_PWR
ON
Standby
Power
OFF
Powered
Off

1-6 Chapter 1: Product introduction

1.5 Motherboard overview

Before you install the motherboard, study the conguration of your chassis to ensure that the motherboard ts into it.
Ensure 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, ensure 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.
R
P5N-EMHDMI
Place this side towards the rear of the chassis

ASUS P5N-EM HDMI 1-7

1.5.3 Motherboard layout

20.8cm (8.2in)
24.5cm (9.6in
)
R
DDR2 DIMM2 (64 bit,240-pin module)
DDR2 DIMM1 (64 bit,240-pin module)
DDR2 DIMM3 (64 bit,240-pin module)
PCI1
PCI2
PCIEX1_1
PCIEX16
EATXPWR
PRI_IDE
SATA2SATA1
SATA3SATA4
F_PANEL
SPEAKER
LPT
CHASSIS
P5N-EMHDMI
FLOPPY
CR2032 3V Lithium Cell
CMOS Power
AAFP
Super I/O
USB56
USB78 USB910
SPDIF_OUT
8Mb BIOS
ALC883
LAN_USB12
AUDIO
PS/2KBMS T: Mouse B: Keyboard
USB34
A
TX12V
PS2_USBPW
CLRTC
CD
LGA775
PWR_FAN
CHA_FAN
CPU_FAN
COM1
USBPW5-10
MCP73PV
SB_PWR
RTL
8211B
ASM 4136
HDMI
VGA_DVI
HDJ1

1-8 Chapter 1: Product introduction

1.6.1 Installling the CPU

To install a CPU:
1. Locate the CPU socket on the motherboard.

1.6 Central Processing Unit (CPU)

The motherboard comes with a surface mount LGA775 socket designed for the
Core™2 Quad / Core™2 Duo / Pentium® D / Pentium® 4 and Celeron
®
processors.
Your boxed Intel® Core™2 Quad / Core™2 Duo / Pentium® D / Pentium® 4 or Celeron® LGA775 processor package should come with installation instructions for the CPU, fan and heatsink assembly. If the instructions in this section do not match the CPU documentation, follow the latter.
Upon purchase of the motherboard, ensure that the PnP cap is on the socket and the socket pins are not bent. Contact your retailer immediately
if the PnP cap is missing, or if you see any damage to the PnP cap/socket pins/motherboard components. ASUS will shoulder the cost of repair only if the damage is shipment/transit-related.
Keep the cap after installing the motherboard. ASUS will process Return
Merchandise Authorization (RMA) requests only if the motherboard comes
with the cap on the LGA775 socket.
The product warranty does not cover damage to the socket pins resulting
from incorrect CPU installation/removal, or misplacement/loss/incorrect
removal of the PnP cap.
Before installing the CPU, ensure that the socket box is facing towards you and the load lever is on your left.
P5N-EMHDMI
R
P5N-EM HDMI CPU Socket 775
ASUS P5N-EM HDMI 1-9
3. Lift the load lever in the direction of the arrow to a 135º angle.
4. Lift the load plate with your thumb
and forenger to a 100º angle (A),
then push the PnP cap from the load plate window to remove (B).
To prevent damage to the socket pins, do not remove the PnP cap unless you are installing a CPU.
2. Press the load lever with your thumb (A) and move it to the left (B) until it is
released from the retention tab.
Retention tab
Load lever
This side of the cam box should face you.
PnP Cap
A
B
Load plate
A
B
1-10 Chapter 1: Product introduction
The CPU ts in only one correct orientation. DO NOT force the CPU into the
socket to prevent bending the connectors on the socket and damaging the CPU!
6. Close the load plate (A), then push the load lever (B) until it snaps into the retention tab.
A
B
The motherboard supports Intel® LGA775 processors with the Enhanced Intel SpeedStep® Technology (EIST), and Hyper-Threading Technology.
5. Position the CPU over the socket, making sure that the gold triangle is on the bottom-left corner of the socket. The socket
alignment key should t
into the CPU notch.
Alignment key
Gold triangle mark

ASUS P5N-EM HDMI 1-11

1.6.2 Installling the CPU heatsink and fan

The Intel
®
Core™ 2 Quad / Core™ 2 Duo / Pentium D / Pentium® 4 / Celeron® processor
require a specially designed heatsink and fan assembly to ensure optimum thermal condition and performance.
Install the motherboard to the chassis before you install the CPU fan and heatsink assembly
When you buy a boxed
Intel® Core™ 2 Quad / Core™ 2 Duo / Pentium D /
Pentium® 4 / Celeron® processor, the package includes the CPU fan and heatsink assembly. If you buy a CPU separately, ensure that you use only Intel®-certied multi-directional heatsink and fan.
Your
Intel® Core™ 2 Quad / Core™ 2 Duo / Pentium D / Pentium® 4 / Celeron® LGA775 heatsink and fan assembly comes in a push-pin design and requires no tool to install.
If you purchased a separate CPU heatsink and fan assembly, ensure that a Thermal Interface Material is properly applied to the CPU heatsink or CPU before you install the heatsink and fan assembly.
To install the CPU heatsink and fan:
1. Place the heatsink on top of the installed CPU, making sure that the four fasteners match the holes on the motherboard.
Fastener
Motherboard hole
Ensure that each fastener is oriented as shown, with the narrow groove directed outward.
1-12 Chapter 1: Product introduction
• Do not forget to connect the CPU fan connector! Hardware monitoring errors can occur if you fail to plug this connector.
• We recommend you to install the chassis fan for better thermal state.
3. When the fan and heatsink assembly is in place, connect the CPU fan cable to the connector on the motherboard labeled CPU_FAN.
2. Push down two fasteners at a time
in a diagonal sequence to secure the heatsink and fan assembly in place.
A
A
B
B
B
B
A
A
P5N-EMHDMI
R
P5N-EM HDMI
CPU Fan Connector
CPU_FAN
GND
CPU FAN PWR
CPU FAN IN
CPU F
AN PWM

ASUS P5N-EM HDMI 1-13

1.6.3 Uninstalling the CPU heatsink and fan

To uninstall the CPU heatsink and fan:
1. Disconnect the CPU fan cable from the connector on the motherboard.
2. Rotate each fastener
counterclockwise.
3. Pull up two fasteners at a time in a diagonal sequence to disengage the heatsink and fan assembly from the motherboard.
A
A
B
B
B
B
A
A
1-14 Chapter 1: Product introduction
4. Remove the heatsink and fan assembly from the motherboard.
5. Rotate each fastener clockwise to reset the orientation.
The narrow end of the groove should point outward after resetting. (The photo shows the groove shaded for emphasis.)
Narrow end of the groove

ASUS P5N-EM HDMI 1-15

1.7 System memory

1.7.1 Overview

The motherboard comes with three Double Data Rate 2 (DDR2) Dual Inline
Memory Modules (DIMM) sockets.
A DDR2 module has the same physical dimensions as a DDR DIMM but has a 240-pin footprint compared to the 184-pin DDR DIMM. DDR2 DIMMs are notched
differently to prevent installation on a DDR DIMM socket.
The gure illustrates the location of the DDR2 DIMM sockets:
1.7.2 Memory congurations
You may install 256 MB, 512 MB, 1 GB and 2 GB unbuffered non-ECC DDR2
DIMMs into the DIMM sockets.
P5N-EMHDMI
R
P5N-EM HDMI 2
40-pin DDR2 DIMM Sockets
128 Pins
112 Pins
DIMM1
DIMM2
Sockets Color
DIMM1 Yellow
DIMM2, and DIMM3 Black
The yellow socket supports maximum 2G memory modules.
The total size supported by the two black sockets is 2G. You may install
one double-sided memory module into either the black socket, or two single-sided memory modules into both black sockets.
When installing two double-sided memory modules, you can only install
them into DIMM1 and DIMM2, or DIMM1 and DIMM3.
When installing only one single-sided memory module, do not install it into
DIMM3; when installing two single-sided memory modules, do not install
them into DIMM1 and DIMM3 at the same time.
Always install DIMMs with the same CAS latency. For optimum compatibility, it is recommended that you obtain memory modules from
the same vendor. Refer to the DDR2 Qualied Vendors List at the ASUS
website (www.asus.com) for details.
1-16 Chapter 1: Product introduction
1.7.3 DDR2 Qualied Vendors List
The following table lists the memory modules that have been tested and qualied
for use with this motherboard. Visit the ASUS website (www.asus.com) for the
latest DDR2 DIMM modules for this motherboard.
DDR2 533 Qualied Vendors List
Size Vendor Part No. CL Chip
Brand
SS/
DS
Chip No. DIMM support
A* B* C*
256MB Kingston KVR533D2N4/256 N/A Elpida SS E5116AF-5C-E · · ·
512MB Kingston KVR533D2N4/512 N/A Inneon SS HYB18T512800AF3733336550 · · ·
1G Kingston KVR533D2N4/1G N/A Hynix DS HY5PS12821EFP-Y5 · ·
256MB Samsung M378T3253FG0-CD5 N/A Samsung SS K4T56083QF-GCD5 · ·
512MB Samsung M378T6553BG0-CD5 4 Samsung SS K4T51083QB-GCD5 ·
256MB HY HYMP532U64CP6-C4 AB 4 Hynix SS HY5PS121621CFP-C4 · · ·
512MB HY HYMP564U64BP8-C4 AB 4 Hynix SS HY5PS12821BFP-C4 · · ·
1G HY HYMP512U64CP8-C4 AB 4 Hynix DS HY5PS12821CFP-C4 · ·
512MB Micron MT 16HTF6464AG-53EB2 4 Micron DS D9BOM · ·
1G Micron MT 16HTF12864AY-53EA1 4 Micron DS D9CRZ ·
512MB Corsair VS512MB533D2 N/A Corsair DS MIII0052532M8CEC · ·
1G Corsair VS1GB533D2 N/A Corsair DS 64M8CFEGQIB0900718 · ·
512MB Elpida EBE51UD8ABFA-5C-E N/A Elpida SS E5108AB-5C-E · · ·
512MB Kingmax KLBC28F-A8KB4 N/A Kingmax SS KKEA88B4IAK-37 · · ·
512MB ADATA M2OAD2G3H3166I1B52 N/A ADATA SS AD29608A8A-37DG20719 · · ·
2G ADATA M20AD2H3J4170I1B53 N/A ADATA DS AD20908A8A-37DG30721 · ·
DDR2 667 Qualied Vendors List
Size Vendor Part No. CL Chip
Brand
SS/ DS
Chip No. DIMM support
A* B* C*
256MB Kingston KVR667D2N5/256 N/A Inneon SS HYB18T256800AF3SW65 33154 · · ·
512MB Kingston KVR667D2N5/512 N/A Hynix SS HY5PS12821EFP-Y5 · ·
1G Kingston KVR667D2N5/1G N/A Hynix DS HY5PS12821EFP-Y5 · ·
2G Kingston KVR667D2N5/2G N/A Micron DS 7RE22 D9HNL · ·
512MB Samsung KR M378T6553CZ0-CE6 N/A Samsung SS K4T51083QC · · ·
512MB Samsung KR M378T6453FZ0-CE6 N/A Samsung DS K4T56083QF-ZCE6 ·
512MB Samsung M378T6553CZ3-CE6 N/A Samsung SS K4T51083QC-ZCE6 · · ·
1G Samsung M378T2953CZ3-CE6 N/A Samsung DS K4T51083QC-ZCE6 · ·
1G Samsung KR M378T2953CZ0-CE6 N/A Samsung DS K4T51083QC-ZCE6 ·
512MB Qimonda HYS64T64000EU-3S-B2 5 Qimonda SS HYB18T512B00B2F3SFSS28171 · · ·
1G Qimonda HYS64T128020EU-3S-B2 5 Qimonda DS HYB18T512B00B2F3SFSS28171 · ·
2G Qimonda HYS64T256020EU-3S-B 5 Qimonda DS HTB18T1G800BF-3S3VV10907 · ·
512MB Corsair VS512MB667D2 N/A Corsair SS 64M8CFEGPS0900647 · · ·
1G Corsair VS1GB667D2 N/A Corsair DS MID095D62864M8CEC · ·
1G Corsair XMS2-5400 4 Corsair DS Heat-Sink Package · ·
ASUS P5N-EM HDMI 1-17
DDR2 667 Qualied Vendors List
Size Vendor Part No. CL Chip Brand SS/
DS
Chip No. DIMM support
A* B* C*
1G Micron MT8HTF12864AY-667E1 5 Micron SS D9HNL 7ZE17 · · ·
256MB HY HYMP532U64CP6-Y5 AB 5 Hynix SS HY5PS121621CFP-Y5 · · ·
512MB HY HYMP564U64AP8-Y4 AA N/A Hynix SS HY5PS12821AFP-Y4 · ·
512MB HY HYMP564U64AP8-Y5 AA N/A Hynix SS HY5PS12821AFP-Y5 · ·
1G HY HYMP512U64AP8-Y5 AB N/A Hynix DS HY5PS12821AFP-Y5 ·
1G HY HYMP512U64CP8-Y5 AB 5 Hynix DS HY5PS12521CFP-Y5 · ·
512MB Kingmax KLCC28F-A8KB5 N/A Kingmax SS KKEA88B4LAUG-29DX · · ·
1G Kingmax KLCD48F-A8KB5 N/A Kingmax DS KKEA88B4LAUG-29DX · ·
512MB Apacer 78.91092.420 N/A Elpida SS E5108AE-6E-E · ·
512MB Apacer AU512E667C5KBGC 5 Apacer SS AM4B5708MIJS7E0627B · ·
512MB Apacer AU512E667C5KBGC 5 Apacer SS AM4B5708GQJS7E06332F · ·
512MB Apacer AU512E667C5KBGC 5 Apacer SS AM4B5708GQJS7E0632C · ·
512MB Apacer 78.91G92.9K5 5 Apacer SS AM4B5708JQJS7E0751C · · ·
1G Apacer AU01GE667C5KBGC N/A Apacer DS AM4B5708GQJS7E0636B · ·
1G Apacer AU01GE667C5KBGC 5 Apacer DS AM4B5708MIJS7E0627B · ·
512MB ADATA M20EL5G3H3160B1C0Z N/A Elpida SS E5108AE-6E-E · · ·
512MB ADATA M20AD5G3H3166I1C52 N/A ADATA SS AD29608A8A-3EG20648 · · ·
512MB ADATA M20AD5G3H3166I1C52 N/A ADATA SS AD29608A8A-3EG20718 · ·
1G ADATA M2OAD5G3I4176I1C52 N/A ADATA DS AD29608A8A-3EG20645 · ·
2G ADATA M2OAD5H3J4170I1C53 N/A ADATA DS AD20908A8A-3EG 30724 · ·
512MB VDATA M2GVD5G3H31A4I1C52 N/A VDATA SS VD29608A8A-3EC20615 · · ·
512MB VDATA M2GVD5G3H166I1C52 N/A VDATA SS VD29608A8A-3EG20637 · ·
1G VDATA M2GVD5G3I41P6I1C52 N/A VDATA DS VD29608A8A-3EG20627 · ·
1G VDATA M2GVD5G3I41C4I1C52 N/A VDATA DS VD29608A8A-3EC20620 · ·
1G VDATA M2GVD5G3I4176I1C52 N/A VDATA DS VD29608A8A-3EG20641 · ·
512MB PSC AL6E8E63B-6E1K 5 PSC SS A3R12E3GEF637BLC5N · · ·
512MB PSC AL6E8E63J-6E1 5 PSC SS A3R12E3JFF717B9A00 · · ·
1G PSC AL7E8E63B-6E1K 5 PSC DS A3R12E3GEF637BLC5N ·
1G PSC AL7E8E63J-6E1 5 PSC DS A3R12E3JFF717B9A01 · ·
1G PSC AL7E8F73C-6E1 5 PSC SS A3R1GE3CFF734MAA0J · · ·
2G PSC AL8E8F73C-6E1 5 PSC DS A3R1GE3CFF733MAA00 · ·
256MB Nanya NT256T64UH4A1FY-3C N/A Nanya SS NT5TU32M16AG-3C · · ·
512MB Nanya NT512T64U88A1BY-3C N/A Nanya SS NT5TU64M8AE-3C · ·
1G Super Talent T667UB1GV 5 Super Talent DS PG 64M8-800 0750 · ·
1G Kingtiger E0736001024667 N/A Kingtiger DS KTG667PS6408NST-C6 GDBTX · ·
1G ELIXIR M2Y1G64TU8HA2B-3C 5 ELIXIR DS M2TU51280AE-3C717095R28F · ·
1G Leadmaax LRMP512U64A8-Y5 N/A Hynix DS HY5PS12821CFP-Y5 C 702AA · ·
1-18 Chapter 1: Product introduction
DDR2 800 Qualied Vendors List
SS - Single-sided / DS - Double - sided DIMM support:
A*: Supports one module inserted into any slot as Single-channel memory
conguration.
B*: Supports one pair of modules inserted into the yellow slot and the black slots.
C*: Supports the same modules of one-sided memory inserted in all slots.
Visit the ASUS website for the latest DDR2-533/667/800 MHz QVL.
Size Vendor Part No. CL Chip Brand SS/
DS
Chip No. DIMM support
A* B* C*
1G Kingston KHX6400D2LL/1G N/A Kingston DS Heat-Sink Package
512MB Kingston KHX6400D2LLK2/1GN N/A Kingston SS Heat-Sink Package
512MB Kingston KVR800D2N5/512 N/A Promos SS V59C1512804QCF25SY032406PECPA
1G Kingston KHX6400D2K2/2G N/A Kingston DS Heat-Sink Package
512MB Samsung KR M378T6553CZ3-CE7 N/A Samsung SS K4T51083QC-ZCE7
1G Samsung KR M378T2953CZ3-CE7 N/A Samsung DS K4T51083QC-ZCE7
512MB Qimonda HYS64T64000EU-2.5-B2 6 Qimonda SS HYB18T512800B2F25FSS28380
1G Qimonda HYS64T128020EU-2.5-B2 6 Qimonda DS HYB18T512800B2F25FSS28380
1G Corsair XMS2-6400 4 Corsair DS Heat-Sink Package
1G Corsair XMS2-6400 5 Corsair DS Heat-Sink Package
512MB HY HYMP564U64AP8-S6 AA N/A Hynix SS HY5PS12821AFP-S6
512MB HY HYMP564U64BP8-S5 AB N/A Hynix SS HY5PS12821BFP-S5
512MB HY HYMP564U64CP8-S5 AB 5 Hynix SS HY5PS12821CFP-S5
1G HY HYMP512U64AP8-S6 AA N/A Hynix DS HY5PS12821AFP-S6
1G HY HYMP512U64BP8-S5 AB 5 Hynix DS HY5PS12821BFP-S5
1G HY HYMP512U64CP8-S5 AB 5 Hynix DS HY5PS12821CFPS5
512MB Kingmax KLDC28F-A8KI5 N/A Kingmax SS KKA8FF1XF-JFS-25A
1G Kingmax KLDD48F-A8K15 N/A Kingmax DS KKA8FFIXF-HFS-25A
1G Apacer 78.01GA0.9K5 5 Apacer SS AM4B5808CQJS8E0749D
2G Apacer 78.A1GA0.9K4 5 Apacer DS AM4B5808CQJS8E0740E
2G Apacer 78.A1GA0.9K4 5 Apacer DS AM4B5808CQJS8E0747D
512MB ADATA M20AD6G3H3160I1E58 N/A ADATA SS AD29608A8A-25EG80720
512MB VDATA M2GVD6G3H3160I1E53 N/A VDATA SS VD29608A8A-25EG30648
1G VDATA M2GVD6G3I4170I1E53 N/A VDATA DS VD29608A8A-25EG30647
1G PSC AL7E8F73C-8E1 5 PSC SS A3R1GE3CFF734MAA0E
2G PSC AL8E8F73C-8E1 5 PSC DS A3R1GE3CFF734MAA0E
1G Super Talent T800UB1GC4 4 Super Talent DS Heat-Sink Package
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