Asus P7P55D User Manual

P7P55D

Motherboard

E4977

Second Edition

August 2009

Copyright © 2009 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, modified or altered, unless such repair, modification 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 identification or explanation and to the owners’ benefit, without intent to infringe.

ii

Contents

Contents......................................................................................................................	iii
Notices .......................................................................................................................	vii
Safety information....................................................................................................	viii
About this guide..........................................................................................................	ix
P7P55D specifications summary..............................................................................	xi

Chapter 1:		Product introduction
1.1	Welcome!	.....................................................................................................	1-1
1.2	Package contents.......................................................................................		1-1
1.3	Special features..........................................................................................		1-2
	1.3.1 ........................................................................	Product highlights	1-2
	1.3.2 ...................................	ASUS Xtreme Design—Hybrid Processor	1-3
	1.3.3 .........................................	ASUS Xtreme Design—Hybrid Phase	1-3
	1.3.4 ..............................................	ASUS Xtreme Design—Hybrid OS	1-3
	1.3.5 ............................................................	ASUS Exclusive Features	1-4

Chapter 2:		Hardware information
2.1	Before you proceed....................................................................................		2-1
2.2	Motherboard overview...............................................................................		2-2
	2.2.1	Motherboard layout......................................................................	2-2
	2.2.2	Layout contents...........................................................................	2-3
	2.2.3	Placement direction.....................................................................	2-4
	2.2.4	Screw holes.................................................................................	2-4
2.3	Central Processing Unit (CPU)..................................................................		2-5
	2.3.1	Installing the CPU........................................................................	2-5
	2.3.2	Installing the CPU heatsink and fan.............................................	2-8
	2.3.3	Uninstalling the CPU heatsink and fan........................................	2-9
2.4	System memory........................................................................................		2-10
	2.4.1	Overview....................................................................................	2-10
	2.4.2	Memory configurations..............................................................	2-11
	2.4.3	Installing a DIMM.......................................................................	2-19
	2.4.4	Removing a DIMM.....................................................................	2-19
2.5	Expansion slots........................................................................................		2-20
	2.5.1	Installing an expansion card......................................................	2-20
	2.5.2	Configuring an expansion card..................................................	2-20
	2.5.3	Interrupt assignments................................................................	2-21
	2.5.4	PCI slots....................................................................................	2-22
	2.5.5	PCI Express x1 slots..................................................................	2-22
	2.5.6	PCI Express 2.0 x16 slots..........................................................	2-22

iii

Contents

2.6	Onboard switch.........................................................................................		2-24
2.7	Jumpers	.....................................................................................................	2-25
2.8	Connectors................................................................................................		2-27
	2.8.1 ...............................................................	Rear panel connectors	2-27
	2.8.2 ................................................................	Audio I/O connections	2-28
	2.8.3 ....................................................................	Internal connectors	2-31
	2.8.4. ...........................................	ASUS Q - Connector (system panel)	2-40
2.9	Onboard ...........................................................................................LEDs		2-41
2.10	Starting up ....................................................................for the first time		2-42
2.11	Turning off .........................................................................the computer		2-42

Chapter 3:		BIOS setup
3.1	Knowing BIOS.............................................................................................		3-1
3.2	Updating BIOS............................................................................................		3-1
	3.2.1	ASUS Update utility.....................................................................	3-1
	3.2.2	ASUS EZ Flash 2 utility...............................................................	3-5
	3.2.3	ASUS CrashFree BIOS 3 utility...................................................	3-6
3.3	BIOS setup program...................................................................................		3-6
	Entering BIOS Setup at startup....................................................................		3-6
	Entering BIOS Setup after POST.................................................................		3-6
	3.3.1	BIOS menu screen......................................................................	3-7
	3.3.2	Menu bar......................................................................................	3-7
	3.3.3	Navigation keys...........................................................................	3-8
	3.3.4	Menu items..................................................................................	3-8
	3.3.5	Submenu items............................................................................	3-8
	3.3.6	Configuration fields......................................................................	3-8
	3.3.7	Pop-up window............................................................................	3-8
	3.3.8	Scroll bar......................................................................................	3-8
	3.3.9	General help................................................................................	3-8
3.4	Main menu...................................................................................................		3-9
	3.4.1	SATA 1-6......................................................................................	3-9
	3.4.2	Storage Configuration................................................................	3-11
	3.4.3	AHCI Configuration....................................................................	3-11
	3.4.4	System Information....................................................................	3-12
3.5	Ai Tweaker menu......................................................................................		3-13
	3.5.1	OC Tuner Utility.........................................................................	3-13
	3.5.2	OC Tuner limit Value .................................................................	3-13
	3.5.3	Ai Overclock Tuner ...................................................................	3-14
	3.5.4	CPU Ratio Setting .....................................................................	3-14

iv

Contents

	3.5.5	Intel(R) SpeedStep(TM) Tech ...................................................	3-15
	3.5.6	Intel(R) TurboMode Tech ..........................................................	3-15
	3.5.7	Xtreme Phase Full Power Mode ...............................................	3-15
	3.5.8	DRAM Frequency .....................................................................	3-15
	3.5.9.	DRAM Timing Control ...............................................................	3-15
	3.5.10	CPU Differential Amplitude .......................................................	3-17
	3.5.11	CPU Clock Skew ......................................................................	3-17
	3.5.12	CPU Voltage Mode [Offset] .......................................................	3-17
	3.5.13	IMC Voltage .............................................................................	3-18
	3.5.14	DRAM Voltage .........................................................................	3-18
	3.5.15	CPU PLL Voltage ......................................................................	3-18
	3.5.16	PCH Voltage .............................................................................	3-18
	3.5.17	DRAM DATA REF Voltage on CHA/B .......................................	3-19
	3.5.18	DRAM CTRL REF Voltage on CHA/B .......................................	3-19
	3.5.19	Load-Line Calibration ................................................................	3-19
	3.5.20	CPU Spread Spectrum .............................................................	3-19
	3.5.21	PCIE Spread Spectrum ............................................................	3-19
3.6	Advanced menu........................................................................................		3-20
	3.6.1	CPU Configuration.....................................................................	3-20
	3.6.2	North Bridge Configuration........................................................	3-22
	3.6.3	Onboard Device Configuration..................................................	3-23
	3.6.4	USB Configuration.....................................................................	3-24
	3.6.5	PCIPnP......................................................................................	3-25
	3.6.6	Intel VT-d Configuration ............................................................	3-25
	3.6.7	T.Probe .....................................................................................	3-25
3.7	Power menu..............................................................................................		3-25
	3.7.1	Suspend Mode ..........................................................................	3-26
	3.7.2	Repost Video on S3 Resume ...................................................	3-26
	3.7.3	ACPI 2.0 Support ......................................................................	3-26
	3.7.4	ACPI APIC Support ...................................................................	3-26
	3.7.5	EuP Ready ................................................................................	3-26
	3.7.6	APM Configuration.....................................................................	3-27
	3.7.7	Hardware Monitor......................................................................	3-28
3.8	Boot menu.................................................................................................		3-29
	3.8.1	Boot Device Priority...................................................................	3-29
	3.8.2	Boot Settings Configuration.......................................................	3-30
	3.8.3	Security......................................................................................	3-31
3.9	Tools menu................................................................................................		3-33
	3.9.1	ASUS O.C. Profile.....................................................................	3-33

Contents

3.9.2	AI NET 2....................................................................................	3-34
3.9.3	ASUS EZ Flash 2.......................................................................	3-34
3.9.4	Express Gate ............................................................................	3-35
3.10 Exit menu...................................................................................................		3-36

Chapter 4:		Software support
4.1	Installing an operating system..................................................................		4-1
4.2	Support DVD information...........................................................................		4-1
	4.2.1	Running the support DVD............................................................	4-1
	4.2.2	Obtaining the software manuals..................................................	4-2
4.3	Software information..................................................................................		4-3
	4.3.1	ASUS PC Probe II.......................................................................	4-3
	4.3.2	ASUS AI Suite..............................................................................	4-4
	4.3.3	ASUS Fan Xpert..........................................................................	4-5
	4.3.4	ASUS EPU-6 Engine...................................................................	4-6
	4.3.5	ASUS Express Gate....................................................................	4-7
	4.3.6	VIA® High Definition Audio utility..................................................	4-8
4.4	ASUS Unique Overclocking Utility—TurboV EVO...................................		4-9
	4.4.1	Using ASUS TurboV....................................................................	4-9
	4.4.2	Using ASUS TurboV Auto Tuning Mode....................................	4-10
	4.4.3	Using ASUS Turbo Key..............................................................	4-11
4.5	RAID configurations.................................................................................		4-12
	4.5.1	RAID definitions.........................................................................	4-12
	4.5.2	Installing Serial ATA hard disks..................................................	4-13
	4.5.3	Setting the RAID item in BIOS...................................................	4-13
	4.5.4	Intel® Matrix Storage Manager option ROM utility.....................	4-13
4.6	Creating a RAID driver disk.....................................................................		4-17
	4.6.1	Creating a RAID driver disk without entering the OS.................	4-17
	4.6.2	Creating a RAID driver disk in Windows®..................................	4-17
	4.6.3	Installing the RAID driver during Windows® OS installation.......	4-18
	4.6.4	Using a USB floppy disk drive...................................................	4-18

Chapter 5:		Multiple GPU technology support
5.1	ATI® CrossFireX™ technology...................................................................		5-1
	5.1.1	Requirements..............................................................................	5-1
	5.1.2	Before you begin..........................................................................	5-1
	5.1.3	Installing two CrossFireX™ graphics cards.................................	5-2
	5.1.4	Installing the device drivers.........................................................	5-3
	5.1.5	Enabling the ATI® CrossFireX™ technology................................	5-3

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.

The use of shielded cables for connection of the monitor to the graphics card is required to assure compliance with FCC regulations. Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment.

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.

REACH

Complying with the REACH (Registration, Evaluation, Authorisation, and Restriction of Chemicals) regulatory framework, we published the chemical substances in our products at ASUS REACH website at http://green.asus.com/english/REACH.htm.

DO NOT throw the motherboard in municipal waste. This product has been designed to enable proper reuse of parts and recycling. This 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.

DO NOT throw the mercury-containing button cell battery in municipal waste. This symbol of the crossed out wheeled bin indicates that the battery should not be placed in municipal waste.

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 adapter or extension cord. These devices could interrupt the grounding circuit.

•Ensure 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 fix it by yourself. Contact a qualified service technician or your retailer.

•The optical S/PDIF is an optional component (may or may not be included in your motherboard) and is defined as a CLASS 1 LASER PRODUCT.

INVISIBLE LASER RADIATION, AVOID EXPOSURE TO BEAM.

•Never dispose of the battery in fire. It could explode and release harmful substances into the environment.

•Never dispose of the battery with your regular household waste. Take it to a hazardous material collection point.

•Never replace the battery with an incorrect battery type.

•RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.

•DISPOSE OF USED BATTERIES ACCORDING TO THE ABOVE BATTERYRELATED INSTRUCTIONS.

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, ensure 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.

This motherboard should only be used in environments with ambient temperatures between 5°C (41°F) and 40°C (104°F).

•Place the product on a stable surface.

•If you encounter technical problems with the product, contact a qualified service technician or your retailer.

viii

About this guide

This user guide contains the information you need when installing and configuring 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: Hardware information

This chapter lists the hardware setup procedures that you have to perform when installing system components. It includes description of the switches, jumpers, and connectors on the motherboard.

•Chapter 3: 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 4: Software support

This chapter describes the contents of the support DVD that comes with the motherboard package and the software.

•Chapter 5: Multiple GPU technology support

This chapter describes how to install and configure multiple ATI® CrossFireX™ graphics cards.

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 flyers, that may have been added by your dealer. These documents are not part of the standard package.

ix

Conventions used in this guide

To ensure 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.

IMPORTANT: Instructions that you MUST follow to complete a task.

NOTE: Tips and additional information to help you 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> + <Del>

P7P55D specifications summary

CPU

Chipset

Memory

Expansion Slots

Multi-GPU Support

Storage

LAN

USB

IEEE 1394

Audio

LGA1156 socket for Intel® Core™ i7 Processors/ Core™ i5 processors

Supports Intel® Turbo Boost Technology

* Refer to www.asus.com for Intel CPU support list

Intel® P55 Express Chipset

Dual channel memory architecture

-4 x 240-pin DIMM sockets support unbuffered non-ECC

DDR3 2133(O.C.)* / 1600 / 1333 / 1066 MHz memeory modules

-Supports up to 16GB system memory

Supports Intel® Extreme Memory Profile (XMP)

*Hyper DIMM support is subject to the physical characteristics of individual CPUs. Some hyper DIMMs only support one DIMM per channel.

**Refer to www.asus.com or this user manual for the

Memory QVL (Qualified Vendors Lists)

2 x PCI Express 2.0 x 16 slots

-One slot at x16 mode (single, blue)

-One slot at x4 mode, 2.5GT/s (black) 2 x PCI Express 2.0 x1 slots (2.5GT/s)

3 x PCI slots

Supports ATI® Quad-GPU CrossFireX™ Technology

Intel® P55 Express Chipset:

-6 x SATA 3.0 Gb/s ports

-Intel® Matrix Storage Technology supporting SATA RAID 0,1, 5, and 10

JMicron® JMB363 SATA & PATA controller

-1 x Ultra DMA 133/100/66 for up to 2 PATA devices

-1 x SATA 3.0 Gb/s port (black)

-1 x eSATA 3.0 Gb/s port (SATA on-the-go)

Realtek® 8112L Gigabit LAN controller featuring AI NET2

14 x USB 2.0 ports (6 ports at mid-board, 8 ports at rear panel)

VIA® VT6308P controller supports 2 x IEEE 1394a ports (one at mid-board, one at rear panel)

VIA® VT1828S 8-channel High Definition Audio CODEC

-Absolute Pitch BD192/24

-DTS Surround Sensation UltraPC

-BD audio layer Content Protection

-Supports Jack-Detection, Multi-streaming, and Front Panel Jack-Retasking

-Optical S/PDIF out port at back I/O

ASUS Q-Design	ASUS Q-Design:
	- ASUS Q-LED (CPU, DRAM, VGA, Boot Device LED)
	-	ASUS Q-Slot
	-	ASUS Q-DIMM

(continued on the next page)

xi

P7P55D specifications summary

ASUS Unique Features	ASUS Hybrid Processor – ASUS TurboV EVO
	- Auto Tuning, TurboV, and Turbo Key
	ASUS Hybrid Phase
	- T.Probe Technology for Active Cooling
	- 12+2 Phase Power Design
	ASUS Hybrid OS – Express Gate
	ASUS Xtreme Design
	ASUS Exclusive Features
	-	MemOK!
	-	ASUS EPU
	ASUS Quiet Thermal Solution:
	- ASUS Fanless Design: Stylish Heat-sink solution
	- ASUS Fanless Design: Stack Cool 3
	-	ASUS Fan Xpert
	ASUS Crystal Sound
	-	ASUS Noise Filter
	ASUS EZ DIY:
	-	ASUS Q-Shield
	-	ASUS Q-Connector
	-	ASUS O.C. Profile
	- ASUS CrashFree BIOS 3
	- ASUS EZ Flash 2
	- ASUS My Logo 2
	- Multi-language BIOS
ASUS Exclusive	Precision Tweaker 2:
Overclocking Features	-	vCore: Adjustable CPU voltage at 0.00625V increment
	- vIMC: 49-step IMC voltage control
	- vDRAM Bus: 81-step DRAM voltage control
	- vPCH: 2-step chipset voltage control
	- vCPU PLL: 4-step reference voltage control
	SFS (Stepless Frequency Selection):
	- Internal Base Clock tuning from 80MHz up to 500 MHz at
		1MHz increment
	- PCI Express frequency tuning from 100MHz up to 200MHz
		at 1MHz increment
	Overclocking Protection:
	- ASUS C.P.R.(CPU Parameter Recall)
Back Panel I/O Ports	1 x PS/2 Keyboard port (Purple)
	1 x PS/2 Mouse port (Green)
	1 x Optical S/PDIF Out
	1 x IEEE1394a
	1 x eSATA 3.0 Gb/s port (SATA on-the-go)

1 x RJ45 port

8 x USB 2.0/1.1

8-channel Audio I/O

(continued on the next page)

xii

P7P55D specifications summary

Internal I/O Connectors

BIOS Features

Manageability

Support DVD Contents

Form Factor

3 x USB connectors support additional 6 USB ports

1 x IDE connector

7 x SATA connectors

1 x CPU Fan connector

2 x Chassis Fan connectors (1 x 4-pin, 1 x 3-pin) 1 x Power Fan connector

1 x IEEE1394a connector

1 x COM port connector Front panel audio connector 1 x S/PDIF Out Header

CD audio in

24-pin ATX Power connector

1 x 8-pin ATX 12V Power connectors System Panel (Q-Connector)

1 x MemOK! button

16 Mb Flash ROM, AMI BIOS, PnP, DMI 2.0, WfM 2.0, SM BIOS 2.5, ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFree BIOS 3

WfM 2.0, DMI 2.0, WOL by PME, WOR by PME, PXE

Drivers

ASUS Utilities

ASUS Update

Anti-virus software (OEM version)

ATX Form Factor, 12”x 9.6” (30.5cm x 24.4cm)

*Specifications are subject to change without notice.

xiii

xiv

Chapter 1

Chapter 1:

Product introduction

1.1Welcome!

Thank you for buying an ASUS® P7P55D 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.

1.2Package contents

Check your motherboard package for the following items.

Manual

User

ASUS P7P55D motherboard

User guide

Support DVD

	4 x Serial ATA 3.0Gb/s cables	1 x Ultra DMA 133/	1 x ASUS Q-Shield
		100/66 cable

1 x 2-in-1 ASUS Q-Connector kit

•If any of the above items is damaged or missing, contact your retailer.

•The illustrated items above are for your reference only. Actual product specifications

may vary with different models.

ASUS P7P55D

1-1

1 Chapter

1.3Special features

1.3.1Product 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/packagings to safeguard consumers’ health while minimizing the impact on the environment.

Intel® LGA1156 Lynnfield Processor Ready

This motherboard supports the latest Intel® Lynnfield processors in LGA1156 package, which has memory and PCI Express controller integrated to support 2-channel (4 DIMMs) DDR3 memory and 16 PCI Express 2.0 lanes, providing great graphics performance. Intel® Lynnfield processor is one of the most powerful and energy efficient CPU in the world. Refer to page

2-5 for details.

Intel® P55

The Intel® P55 Express Chipset is the latest one-chipset design to support the latest 1156 socket Intel® Core™ i7 / Core™ i5 processors. Intel P55 provides improved performance by utilizing serial point-to-point links, allowing increased bandwidth and stability.

PCIe 2.0 support

Double Speed; Double Bandwidth

This motherboard supports the latest PCIe 2.0 devices for double speed and bandwidth that enhances system performance. Refer to page 2-22 for details.

Quad-GPU CrossFireX™ support!

Flexible Multi-GPU solution, Your Weapon of Choice!

P7P55D brings you the multi-GPU choice of CrossFireX™. The motherboard features the most powerful Intel® P55 platform to optimize PCIe allocation in multiple GPU configurations. Expect a brand-new gaming style you’ve never experienced before! Refer to Chapter 5 for details.

Dual-Channel DDR3 DDR3 2133 (O.C.)/1600/1333/1066 support

The motherboard supports DDR3 memory that features data transfer rates of 2133(O.C.) /

1600 / 1333 / 1066 MHz to meet the higher bandwidth requirements of the latest 3D graphics, multimedia, and Internet applications. The dual-channel DDR3 architecture enlarges the bandwidth of your system memory to boost system performance. Refer to page 2-10 for details.

1-2	Chapter 1: Product Introduction

1.3.2ASUS Xtreme Design—Hybrid Processor

TurboV EVO

Ultimate O.C. Processor

The ultimate O.C. processor satisfies every level of overclockers—from die-hard enthusiasts to beginners. Auto tuning intelligently pushes the system to the fastest clock speeds while maintaining stability. Turbo Key boosts performance with just one touch; while TurboV offers more options to advanced overclockers to achieve world O.C. record. Refer to page 4-9 for details.

Auto Tuning

Auto System Level Up

Auto Tuning is an intelligent tool that automates overclocking to achieve a total system level up. This tool also provides stability testing. Even O.C. beginners can achieve extreme yet stable overclocking results with Auto Tuning! Refer to page 4-10 for details.

1.3.3ASUS Xtreme Design—Hybrid Phase

T.Probe

Leading Active Cooling Technology

The T.Probe microchip detects and balances power phase loading and temperature in realtime. This feature optimizes the power phase functions, allowing components to run at lower temperatures and extending their lifespan.

ASUS 12+2 Phase Power Design

Unprecedented Innovation with the Best Quality Component for Best Performance

The groundbreaking 12+2 phase VRM design is brought to the ASUS motherboards. 12+2 phase power design, 12-phase for vCore and extra 2-phase for Memory controller inside

CPU can provide the highest power efficiency, and hence generates less heat to effectively enhance the overclocking capability. With the high quality power components such as low RDS (on) MOSFETs, Ferrite core chokes with lower hysteresis loss and 100% Japan-made high quality conductive polymer capacitors, ASUS 12+2 phase VRM design also ensure longer component life and minimum power loss.

1.3.4ASUS Xtreme Design—Hybrid OS

ASUS Express Gate

Instant Online! Instant Fun!

Express Gate is an ASUS exclusive OS that provides you with quick access to the Internet and key applications without entering the Windows® OS. Refer to page 3-36 and 4-7 for details.

The actual boot time is subject to hardware configurations and product models.

Chapter 1

ASUS P7P55D

1-3

1 Chapter

1.3.5ASUS Exclusive Features

MemOK!

Any Memory is A-OK!

Memory compatibility is among the top concerns during computer upgrades. Worry no more. MemOK! is the fastest memory booting solution today. This remarkable memory rescue tool requires nothing but a push of a button to patch memory issues and get your system up and running in no time. The technology is able to determine failsafe settings that can dramatically improve your system booting success. Refer to page 2-24 for details.

ASUS EPU

System Level Energy Saving

The new ASUS EPU—the world’s first power saving engine, has been upgraded to a new 6 engine version, which provides total system power savings by detecting current PC loadings and intelligently moderating power in real-time. With auto phase switching for components (which includes the CPU, VGA card, memory, chipset, hard drives and CPU cooler / system fans), the EPU automatically provides the most appropriate power usage via intelligent acceleration and overclocking—helping save power and money. Refer to page 4-6 for details.

ASUS Quiet Thermal Solutions

ASUS Quiet Thermal solutions make the system more stable and enhances the overclocking capability.

ASUS Fanless Design—Heat-sink solution

The heat sink design effectively directs the chipsets’ generated heat to the heatsink near the back I/O ports, where the generated heat is carried away by the existing airflow from the CPU fan. This innovative and groundbreaking design effectively lowers the system temperature by 10˚C, prevents any problems that are typical to standard chipsets, and allows you to install a side-flow fan or passive cooler. The heat sink design provides you with the most reliable fanless thermal solution.

Up to 20ºC (36ºF) Cooler—Stack Cool 3

Effective Fanless Heat Dissipation at 0dB

Stack Cool 3 is a fanless cooling solution offered exclusively by ASUS. It effectively and noiselessly transfers heat generated by the critical components to the other side of the specially designed PCB (printed circuit board) for effective heat dissipation— making temperatures cooler by up to 20˚C.

Fan Xpert

Active Quiet & Cool

ASUS Fan Xpert intelligently allows users to adjust both the CPU and chassis fan speed according to different ambient temperature, which is caused by different climate conditions in different geographic regions and system loading. Built-in variety of useful profiles offer flexible controls of fan speed to achieve a quiet and cool environment.

Refer to page 4-5 for details.

1-4	Chapter 1: Product Introduction

ASUS Crystal Sound

This feature can enhance speech-centric applications like Skype, online game, video conference and recording.

ASUS Noise Filter

Eliminate background noise while recording

This feature detects repetitive and stationary noises like computer fans, air conditioners, and other background noises then eliminates it in the incoming audio stream while recording.

ASUS EZ DIY

ASUS EZ DIY feature collection provides you with easy ways to install computer components, update the BIOS or back up your favorite settings.

ASUS Q-Design

DIY quickly, DIY easily!

ASUS Q-Design enhances your DIY experience. All of Q-LED, Q-Slot and Q-DIMM design speed up and simplify the DIY process!

ASUS Q-Shield

Easy and Comfortable Installations

The specially designed ASUS Q-Shield does without the usual “fingers”—making it convenient and easy to install. With better electric conductivity, it ideally protects your motherboard against static electricity and shields it against Electronic Magnetic Interference (EMI).

ASUS Q-Connector

Make connection quick and accurate!

The ASUS Q-Connector allows you to connect or disconnect chassis front panel cables in one easy step with one complete module. This unique module eliminates the trouble of plugging in one cable at a time, making connection quick and accurate. Refer to page 2-40 for details.

ASUS EZ-Flash 2

Simply update BIOS from a USB flash drive before entering the OS

EZ Flash 2 is a user-friendly BIOS update utility. Simply launch this tool and update

BIOS from a USB flash drive before entering the OS. You can update your BIOS only in a few clicks without preparing an additional floppy diskette or using an OS-based flash utility. Refer to page 3-5 for details.

ASUS O.C. Profile

Conveniently restore or load multiple BIOS settings

Freely share and distribute favorite overclocking settings. The motherboard features the ASUS O.C. Profile that allows users to conveniently store or load multiple BIOS settings. The BIOS settings can be stored in the CMOS or a separate file, giving users freedom to share and distribute their favorite overclocking settings. Refer to page 3-34 for details.

Chapter 1

ASUS P7P55D

1-5

1 Chapter

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.

ASUS Multi-language BIOS

The multi-language BIOS allows you to select the language of your choice from the available options. The localized BIOS setup menu helps you configure your system easier and faster.

1-6	Chapter 1: Product Introduction

Chapter 2

Chapter 2: 2.1 Before you proceed Hardware information

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.

• Before handling components, use a grounded wrist strap or touch a safely grounded object or a metal object, such as the power supply case, 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, or components.

ASUS P7P55D

2-1

2.2Motherboard overview

2.2.1Motherboard layout

2 Chapter

Refer to 2.8 Connectors for more information about rear panel connectors and internal connectors.

2-2	Chapter 2: Hardware information

2.2.2Layout contents

Connectors/Jumpers/Slots		Page
1.	ATX power connectors (24-pin EATXPWR, 8-pin EATX12V)	2-38
2.	LGA1156 CPU Socket	2-5
3.	DDR3 DIMM slots	2-10
4.	DRAM overvoltage jumper (3-pin OV_DRAM)	2-26
5.	CPU, chassis, and power fan connectors (4-pin CPU_FAN,	2-37
	4-pin CHA_FAN1, 3-pin CHA_FAN2, 3-pin PWR_FAN)
6.	Serial port connector (9-pin COM1)	2-36
7.	MemOK! switch	2-24
8.	IDE connector (40-1 pin PRI_EIDE)	2-32
9.	JMicron JMB363 Serial ATA connector (7-pin SATA_E1)	2-34
10.	P55 Serial ATA connectors (7-pin SATA1-6)	2-33
11.	System panel connector (20-8 pin PANEL)	2-39
12.	Clear RTC RAM (3-pin CLRTC)	2-25
13.	USB connectors (10-1 pin USB910, USB1112, USB1314)	2-35
14.	Standby power LED	2-41
15.	IEEE 1394a port connector (10-1 pin IE1394_2)	2-36
16.	Optical drive audio connector (4-pin CD)	2-35
17.	Front panel audio connector (10-1 pin AAFP)	2-31
18.	Digital audio connector (4-1 pin SPDIF_OUT)	2-31

Chapter 2

ASUS P7P55D

2-3

2 Chapter

2.2.3Placement 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.

2.2.4Screw holes

Place nine screws into the holes indicated by circles to secure the motherboard to the chassis.

DO NOT overtighten the screws! Doing so can damage the motherboard.

Place this side towards the rear of the chassis

2-4

Chapter 2: Hardware information

2.3Central Processing Unit (CPU)

The motherboard comes with a surface mount LGA1156 socket designed for the Intel® Core™ i7 / Core™ i5 Processor.

Ensure that all power cables are unplugged before installing the CPU.

•Upon purchase of the motherboard, ensure that the PnP cap is on the socket and

the socket contacts are not bent. Contact your retailer immediately if the PnP cap is missing, or if you see any damage to the PnP cap/socket contacts/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

LGA1156 socket.

•The product warranty does not cover damage to the socket contacts resulting from incorrect CPU installation/removal, or misplacement/loss/incorrect removal of the PnP cap.

2.3.1Installing the CPU

To install a CPU:

1.Locate the CPU socket on the motherboard.

Chapter 2

2.Press the load lever with your thumb (A), and then move it to the right (B) until it is released from the retention tab.

To prevent damage to the socket pins, do not remove the PnP cap unless you are installing a CPU.

Load lever

B

Retention tab

ASUS P7P55D

2-5

2 Chapter

3.Lift the load lever in the direction of the arrow until the load plate is completely lifted.

4.Remove the PnP cap from the CPU socket.

5.Position the CPU over the socket, ensuring that the gold triangle is on the bottom left corner of the socket, and then fit the socket alignment keys into the CPU notches.

PnP cap

CPU notches

The CPU fits 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!

Gold

triangle

mark

Alignment keys

2-6	Chapter 2: Hardware information

6.Apply some Thermal Interface Material

to the exposed area of the CPU that the heatsink will be in contact with, ensuring that it is spread in an even thin layer.

Some heatsinks come with preapplied thermal paste. If so, skip this step.

The Thermal Interface Material is toxic and inedible. DO NOT eat it. If it gets into your eyes or touches your

skin, wash it off immediately, and seek professional medical help.

7. Close the load plate (A), and then push

down the load lever (B), ensuring that	B
the front edge of the load plate slides
under the retention knob (C).
	A

8.Insert the load lever under the retention

tab.

Chapter 2

ASUS P7P55D

2-7

2 Chapter

2.3.2Installing the CPU heatsink and fan

The Intel® LGA1156 processor requires a specially designed heatsink and fan assembly to ensure optimum thermal condition and performance.

• When you buy a boxed Intel® processor, the package includes the CPU fan and heatsink assembly. If you buy a CPU separately, ensure that you use only Intel® certified multi directional heatsink and fan.

•Your Intel® LGA1156 heatsink and fan assembly comes in a push-pin design and requires no tool to install.

•Use an LGA1156-compatible CPU heatsink and fan assembly only. The LGA1156 socket is incompatible with the LGA775 and LGA1366 sockets in size and dimension.

If you purchased a separate CPU heatsink and fan assembly, ensure that the Thermal Interface Material is properly applied to the CPU heatsink or CPU before you install the heatsink and fan assembly.

Ensure that you have installed the motherboard to the chassis before you install the CPU fan and heatsink assembly.

To install the CPU heatsink and fan:

1.	Place the heatsink on top of the installed	A
	CPU, making sure that the four fasteners	B
	match the holes on the motherboard.
2.	Push down two fasteners at a time in	B
	a diagonal sequence to secure the

heatsink and fan assembly in place.

A

A B

1

B

A

1

Orient the heatsink and fan assembly such that the CPU fan cable is closest to the CPU fan connector.

2-8	Chapter 2: Hardware information

3.Connect the CPU fan cable to the connector on the motherboard labeled CPU_FAN.

DO NOT forget to connect the CPU fan connector! Hardware monitoring errors can occur if you fail to plug this connector.

2.3.3Uninstalling the CPU heatsink and fan

To uninstall the CPU heatsink and fan:

1.	Disconnect the CPU fan cable from the	A
	connector on the motherboard.
2.	Rotate each fastener counterclockwise.	B
3.	Pull up two fasteners at a time in a	B
	diagonal sequence to disengage the
	heatsink and fan assembly from the
	motherboard.	A

A B

BA

4.Carefully remove the heatsink and fan assembly from the motherboard.

Chapter 2

ASUS P7P55D

2-9

2.4System memory

2.4.1Overview

The motherboard comes with four Double Data Rate 3 (DDR3) Dual Inline Memory Modules (DIMM) sockets.

A DDR3 module has the same physical dimensions as a DDR2 DIMM but is notched differently to prevent installation on a DDR2 DIMM socket. DDR3 modules are developed for better performance with less power consumption.

The figure illustrates the location of the DDR3 DIMM sockets:

2 Chapter

Recommended memory configurations

One DIMM:

Install one memory module in slot A1 or B1 first as a single-channel operation.

Two DIMMs (dual-channel operation):

Four DIMMs (dual-channel operation):

2-10	Chapter 2: Hardware information