Asus P7H55-M PRO User Manual

P7H55-M
PRO

Motherboard

E5022

First Edition
November 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
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DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL,
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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
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Offer to Provide Source Code of Certain Software

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etc to this email address).

ii

Contents

Contents ...................................................................................................................... iii

Notices ......................................................................................................................

Safety information .................................................................................................... viii

About this guide ......................................................................................................... ix

P7H55-M PRO specications summary ...................................................................xi

Chapter 1: Product introduction

1.1 Welcome! ....................................................................................................1-1

1.3 Special features

1.3.1 Product highlights

1.3.2 ASUS Overclocking Features .....................................................

1.3.3 ASUS Unique Features ...............................................................

1.3.4 ASUS Power Solutions ...............................................................

1.3.5 ASUS Quiet Thermal Solutions ...................................................

1.3.6 ASUS Crystal Sound ...................................................................

1.3.7 ASUS EZ DIY ..............................................................................

Chapter 2: Hardware information

2.1 Before you proceed ...................................................................................2-1

2.2 Motherboard overview ...............................................................................

2.2.1 Motherboard layout .....................................................................

2.2.2 Layout contents ...........................................................................

2.2.3 Placement direction

2.2.4 Screw holes

2.3 Central Processing Unit (CPU) .................................................................

2.3.1 Installing the CPU .......................................................................

2.3.2 Installing the CPU heatsink and fan ............................................

2.3.3 Uninstalling the CPU heatsink and fan

2.4 System memory .......................................................................................

2.4.1 Overview ...................................................................................

2.4.2 Memory configurations ..............................................................

2.4.3 Installing a DIMM ......................................................................

2.4.4 Removing a DIMM ....................................................................

2.5 Expansion slots

2.5.1 Installing an expansion card

2.5.2 Configuring an expansion card .................................................

2.5.3 Interrupt assignments

2.5.4 PCI slots ....................................................................................

2.5.5 PCI Express x1 slot ...................................................................

2.5.6 PCI Express 2.0 x16 slot ...........................................................

.......................................................................................... 1-2

........................................................................ 1-2

1-3

1-3

1-3

1-4

1-4

1-4

2-2

2-2

2-3

..................................................................... 2-4

................................................................................. 2-4

2-5

2-5

2-8

........................................ 2-9

2-10

2-10

2-11

2-16

2-16

........................................................................................ 2-17

...................................................... 2-17

2-17

................................................................ 2-18

2-19

2-19

2-19

vii

iii

Contents

2.6 Jumper ......................................................................................................2-20

2.7 Connectors ...............................................................................................

2.7.1 Rear panel connectors ..............................................................

2.7.2 Audio I/O connections ...............................................................

2.7.3 Internal connectors

2.8 Starting up for the rst time ....................................................................

2.9 Turning off the computer .........................................................................

Chapter 3: BIOS setup

3.1 Knowing BIOS ............................................................................................3-1

3.2 Updating BIOS ............................................................................................

3.2.1 ASUS Update utility

3.2.2 ASUS EZ Flash 2 utility ...............................................................

3.2.3 ASUS CrashFree BIOS 3 utility

3.2.4 ASUS BIOS Updater ...................................................................

3.3 BIOS setup program ..................................................................................

3.3.1 BIOS menu screen ......................................................................

3.3.2 Menu bar .....................................................................................

3.3.3 Navigation keys .........................................................................

3.3.4 Menu items

3.3.5 Submenu items .........................................................................

3.3.6 Configuration fields ...................................................................

3.3.7 Pop-up window

3.3.8 Scroll bar ...................................................................................

3.3.9 General help

3.4 Main menu ................................................................................................

3.4.1 SATA 1–6 ..................................................................................

3.4.2 Storage Configuration ...............................................................

3.4.3 System Information ...................................................................

3.5 Ai Tweaker menu ......................................................................................

3.5.1 Ai Overclock Tuner ...................................................................

3.5.2 CPU Ratio Setting ....................................................................

3.5.3 Intel(R) SpeedStep(TM) Tech ..................................................

3.5.4 Intel(R) TurboMode Tech ..........................................................

3.5.5 Xtreme Phase Full Power Mode ..............................................

3.5.6 DRAM Frequency

3.5.7 QPI Frequency .........................................................................

3.5.8 DRAM Timing Control ..............................................................

3.5.9 CPU Differential Amplitude .......................................................

.................................................................... 2-26

..................................................................... 3-2

................................................... 3-5

................................................................................ 3-10

.......................................................................... 3-10

.............................................................................. 3-10

..................................................................... 3-16

2-21

2-21

2-24

2-33

2-33

3-1

3-4

3-6

3-9

3-9

3-9

3-10

3-10

3-10

3-10

3-11

3-11

3-13

3-13

3-14

3-14

3-15

3-15

3-15

3-15

3-16

3-16

3-17

iv

Contents

3.5.10 CPU Clock Skew ...................................................................... 3-17

3.5.11 CPU Voltage Mode

3.5.12 IMC Voltage

3.5.13 DRAM Voltage

3.5.14 CPU PLL Voltage .....................................................................

3.5.15 PCH Voltage

3.5.16 iGPU Voltage

3.5.17 Load-Line Calibration ...............................................................

3.5.18 CPU Spread Spectrum

3.5.19 PCIE Spread Spectrum ............................................................

3.6 Advanced menu .......................................................................................

3.6.1 CPU Configuration ....................................................................

3.6.2 Uncore Configuration ................................................................

3.6.3 Onboard Devices Configuration ................................................

3.6.4 USB Configuration ....................................................................

3.6.5 PCIPnP .....................................................................................

3.6.6 Intel VT-d ..................................................................................

3.7 Power menu ..............................................................................................

3.7.1 Suspend Mode .........................................................................

3.7.2 Repost Video on S3 Resume ....................................................

3.7.3 ACPI 2.0 Support .....................................................................

3.7.4 ACPI APIC Support ..................................................................

3.7.5 EuP Ready ...............................................................................

3.7.6 APM Configuration ....................................................................

3.7.7 Hardware Monitor

3.8 Boot menu ................................................................................................

3.8.1 Boot Device Priority

3.8.2 Boot Settings Configuration ......................................................

3.8.3 Security .....................................................................................

3.9 Tools menu ...............................................................................................

3.9.1 ASUS O.C. Profile .....................................................................

3.9.2 AI NET 2 ....................................................................................

3.9.3 ASUS EZ Flash 2 ......................................................................

3.9.4 Express Gate ...........................................................................

3.10 Exit menu ..................................................................................................

.................................................................... 3-17

............................................................................. 3-18

......................................................................... 3-18

............................................................................. 3-18

............................................................................ 3-18

............................................................. 3-19

...................................................................... 3-29

................................................................... 3-31

3-18

3-18

3-19

3-20

3-20

3-22

3-24

3-25

3-26

3-26

3-27

3-27

3-27

3-27

3-27

3-27

3-28

3-31

3-32

3-33

3-35

3-35

3-36

3-36

3-37

3-38

Chapter 4: Software support

4.1 Installing an operating system .................................................................4-1

4.2 Support DVD information ..........................................................................

4-1

v

Contents

4.2.1 Running the support DVD ........................................................... 4-1

4.2.2 Obtaining the software manuals

4.3 Software information .................................................................................

4.3.1 ASUS PC Probe II .......................................................................

4.3.2 ASUS AI Suite .............................................................................

4.3.3 ASUS Fan Xpert

.......................................................................... 4-5

4.3.4 ASUS TurboV ..............................................................................

4.3.5 ASUS GPU Boost .......................................................................

4.3.6 ASUS Turbo Key .........................................................................

4.3.7 ASUS EPU ..................................................................................

4.3.8 ASUS Express Gate

4.3.9 Realtek

®

High Definition Audio utility ......................................... 4-11

.................................................................. 4-10

.................................................. 4-2

4-3

4-3

4-4

4-6

4-7

4-8

4-9

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.

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.

• 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.

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 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.

Italic

s 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>

x

P7H55-M PRO specications summary

CPU

LGA1156 socket for Intel® Core™ i7 / Core™ i5 / Core™ i3 /
Pentium

®

processors
Supports Intel® Turbo Boost Technology*
* The Intel Turbo Boost Technology support depends on the CPU
types.
** Refer to www.asus.com for Intel CPU support list

Chipset

Memory

Intel® H55 Express Chipset

4 x DIMM, max. 16GB, DDR3 2133(O.C.) /1333 / 1066 MHz,
non-ECC, un-buffered memory
Dual channel memory architecture
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. Please refer to Memory QVL for details.
** Refer to www.asus.com or this user manual for the
Memory QVL (Qualified Vendors Lists)

Expansion Slots

1 x PCI Express 2.0 x16 slot
1 x PCI Express x1 slot
2 x PCI slots

VGA

Multi-VGA output support: HDMI, DVI-D, and RGB ports
Supports HDMI with max. resolution 1920 x 1200 @60Hz
Supports DVI with max. resolution 1920 x 1200 @60Hz
Supports RGB with max. resolution 2048 x 1536 @75Hz
Maximum shared memory of 1748MB

Storage Intel® H55 Express Chipset:

- 6 x SATA 3.0 Gb/s ports

JMicron® JMB368 PATA controller:

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

LAN

USB

Audio

Gigabit LAN controller

®

- Realtek

8112L Gigabit LAN controller featuring AI NET2

12 x USB 2.0 ports (6 ports at mid-board, 6 ports at back panel)

Realtek® 8-channel High Definition Audio CODEC

- BD Audio Layer Content Protection

- Supports Jack-Detection, Multi-streaming and Front Panel
Jack-Retasking (only for Mic In port)

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

- ASUS Noise Filter

(continued on the next page)

xi

P7H55-M PRO specications summary

ASUS Unique Features ASUS Exclusive Overclocking Features:

ASUS Exclusive
Overclocking Features

- TurboV

- Turbo Key

- GPU Boost

ASUS Power Solutions:

- ASUS EPU

- 4+2 Phase Power Design

ASUS Express Gate

ASUS Quiet Thermal Solution:

- ASUS Fanless Design: Heat-sink solution

- ASUS Fan Xpert

ASUS EZ DIY:

- ASUS Q-DIMM

- ASUS O.C. Profile

- ASUS CrashFree BIOS 3

- ASUS EZ Flash 2

- ASUS My Logo 2

- Multi-language BIOS

Precision Tweaker:

- vCore: Adjustable CPU voltage at 0.00625V increment

- vIMC: Adjustable IMC voltage at 0.05V increment

- vDRAM Bus: Adjustable DRAM voltage at 0.1V increment

- vPCH: Adjustable PCH voltage at 0.05V increment

- vCPU_PLL: Adjustable CPU_PLL voltage at 0.05V increment

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)

(continued on the next page)

xii

P7H55-M PRO specications summary

Back Panel I/O Ports

Internal I/O Connectors 3 x USB connectors support additional 6 USB ports

BIOS Features

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

Support DVD Contents Drivers

Form Factor

*Specications are subject to change without notice.

1 x PS/2 Keyboard port (purple)
1 x HDMI Output
1 x DVI-D Output
1 x D-Sub Output
1 x Optical S/PDIF Out
1 x RJ45 port
6 x USB 2.0/1.1 ports
8-channel Audio I/O

1 x IDE connector
6 x SATA 3.0Gb/s connectors
1 x CPU Fan connector
1 x 4-pin Chassis Fan connector
1 x Power Fan connector
1 x Front panel audio connector
1 x S/PDIF Out Header
1 x Clear CMOS jumper
1 x 24-pin ATX Power connector
1 x 8-pin EATX 12V Power connector
1 x System Panel

64 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

ASUS Utilities
ASUS Update
Anti-virus software (OEM version)

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

xiii

xiv

Chapter 1

User Manual

Chapter 1: Product introduction

1.1 Welcome!

Thank you for buying an ASUS® P7H55-M PRO motherboard!

The motherboard delivers a host of new features and latest technologies, making it another
standout in the long line of ASUS quality motherboards!

1.2 Package contents

ASUS P7H55-M PRO

motherboard

2 x Serial ATA 3.0Gb/s cables

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

• The illustrated items above are for reference only. Actual product specifications may
vary with different models.

User guide Support DVD

1 x Ultra DMA 133/

100/66 cable

1 x ASUS I/O Shield

ASUS P7H55-M PRO

1-1

1.3 Special features

1.3.1 Product highlights

Chapter 1

Intel® LGA1156 Lynneld / Clarkdale Processor Ready

This motherboard supports the latest Intel® Lynnfield / Clarkdale 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, enabling higher graphics
performance. Moreover, Intel® Clarkdale processors integrate Graphics Processing Unit
(GPU), which need to collocate Intel H55 chipset with VGA out by Intel Flexible Display
Interface(FDI) to experience the new generation VGA performance. It provides separated 3D,
2D and Video Engines to execute different graphic control in hardware. Refer to page 2-5 for
details.

Intel® H55

The Intel® H55 Express Chipset is the latest one-chipset design to support the latest 1156
socket Intel® Core™ i7 / Core™ i5 / Core™ i3 / Pentium® processors. Intel H55 provides
improved performance by utilizing serial point-to-point links, allowing increased bandwidth
and stability. Using Intel® Core™ i5 6 Series, Core™ i3 5 Series, and Pentium® CPU with H55
Express Chipset to enjoy the latest Intel integrated graphic performance!

PCIe 2.0

This motherboard supports the latest PCIe 2.0 devices for double speed and bandwidth that
enhances system performance. Refer to page 2-19 for details.

HDMI support

High-Definition Multimedia Interface (HDMI) is a set of digital video standards that delivers
multi-channel audio and uncompressed digital video for full HD 1080p visuals through a
single cable. Supporting HDCP copy protection such as and Blu-ray Discs, HDMI provides
you with the highest-quality home theater experience. Refer to page 2-21 for details.

DVI-D Support

DVI (Digital Visual Interface) provides high visual quality of digital display devices such as
LCD monitor. The interface of this motherboard supports dual display output: DVI-D/HDMI,
VGA/HDMI, or DVI-D/VGA. Refer to page 2-21 for details.

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

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

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.

1-2 Chapter 1: Product Introduction

1.3.2 ASUS Overclocking Features

TurboV

Feel the adrenaline rush of real-time O.C. – now a reality with the ASUS TurboV. This easy
O.C. tool allows you to overclock without exiting or rebooting the OS; and its user-friendly
interface makes overclock with just a few clicks away. Moreover, the ASUS OC profiles in
TurboV provides the best O.C. settings in different scenarios. Refer to page 4-6 for details.

Turbo Key

ASUS Turbo Key allows you to turn the PC power button into a physical overclocking button.
After the easy setup, Turbo Key can boost performances without interrupting ongoing work or
games, simply through pressing the button. Refer to page 4-8 for details.

GPU Boost

GPU Boost overclocks the integrated GPU in real time for the best graphics performance.
User-friendly UI facilitates flexible frequency and voltage adjustments. Its ability to deliver
multiple overclocking profiles also provides rapid and stable system-level upgrades. Refer to
page 4-7 for details.

1.3.3 ASUS Unique Features

Express Gate

Express Gate is an ASUS exclusive OS that provides you with quick access to the Internet
and key applications before entering the Windows® OS. Refer to page 3-37 and 4-10 for
details.

1.3.4 ASUS Power Solutions

4+2 Phase Power Design

Unleashes ultimate memory performances with independent power to core components,
while providing fast transient response and stability for the CPU under heavy loading or
overclocking modes.

ASUS EPU

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 / integrated GPU, 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 4-9
for details.

Chapter 1

ASUS P7H55-M PRO

1-3

Chapter 1

1.3.5 ASUS Quiet Thermal Solutions

ASUS Quiet Thermal solution makes system more stable and enhances the overclocking
capability.

ASUS Fanless Design—Heat-sink solution

The crystal-shaped heatsink features 0-dB thermal solution that offers users a noiseless PC
environment. Not only the beautiful shape upgrades the visual enjoyment for motherboard
users, but also the heatsink design lowers the temperature of the chipset and power phase
area through high efficient heat-exchange. Combined with usability and aesthetics, the ASUS
crystal-shaped heatsink will give users an extremely silent and cooling experience with the
elegant appearance!

Fan Xpert

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.

1.3.6 ASUS Crystal Sound

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

8-Channel Audio

The onboard 8-channel HD audio (High Definition Audio, previously codenamed Azalia)
CODEC enables high-quality 192KHz/24-bit audio output, jack-sensing feature, retasking
functions and multi-streaming technology. Refer to page 2-21 for details.

ASUS Noise Filter

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.

1.3.7 ASUS EZ DIY

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

ASUS EZ-Flash 2

Simply update BIOS from a USB ash 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 3-4 for details.

1-4 Chapter 1: Product Introduction

ASUS CrashFree BIOS 3

The ASUS CrashFree BIOS 3 allows users to restore corrupted BIOS data from a USB flash
disk containing the BIOS file. Refer to page 3-5 for details.

ASUS O.C. Prole

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 3-35 for details.

ASUS Q-DIMM

ASUS Q-DIMM enhances your DIY experience by speeding up and simplifying the DIY
process!

Chapter 1

ASUS P7H55-M PRO

1-5

Chapter 1

1-6 Chapter 1: Product Introduction

Chapter 2

Chapter 2: Hardware information

2.1 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.

• 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.

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.

ASUS P7H55-M PRO 2-1

Chapter 2

2.2 Motherboard overview

2.2.1 Motherboard layout

2.7 Connectors

Refer to
connectors.

2-2 Chapter 2: Hardware information

for more information about rear panel connectors and internal

2.2.2 Layout contents

Connectors/Jumpers/Slots Page

1. ATX power connectors (24-pin EATXPWR, 8-pin EATX12V) 2-31

2. LGA1156 CPU Socket

3. CPU, chassis, and power fan connectors (4-pin CPU_FAN,
4-pin CHA_FAN1, 3-pin PWR_FAN)

4. DDR3 DIMM slots

5. Intel

6. IDE connector (40-1 pin PRI_EIDE)

7. System panel connector (20-8 pin PANEL)

8. Serial port connector (10-1 pin COM1)

9. USB connectors (10-1 pin USB78, USB910, USB1112)

10. Clear RTC RAM (3-pin CLRTC)

11. Digital audio connector (4-1 pin SPDIF_OUT)

12. Front panel audio connector (10-1 pin AAFP)

13. Standby power LED

®

H55 Serial ATA connectors (7-pin SATA 1-6) 2-27

2-5

2-29

2-10

2-26

2-32

2-28

2-28

2-45

2-30

2-30

2-1

Chapter 2

ASUS P7H55-M PRO 2-3

Chapter 2

2.2.3 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.

2.2.4 Screw holes

Place eight 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

2.3 Central Processing Unit (CPU)

A

B

The motherboard comes with a surface mount LGA1156 socket designed for the Intel®
Core™ i7 / Core™ i5 / Core™ i3 / Pentium® processors.

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.

2.3.1 Installing 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

Load lever

released from the retention tab.

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

Retention tab

ASUS P7H55-M PRO 2-5

Chapter 2

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

Load plate

4. Remove the PnP cap from the CPU
socket by lifting the tab only.

PnP cap

Cap tab

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

CPU notches

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!

2-6 Chapter 2: Hardware information

Gold

triangle

mark

Alignment keys

C

B

A

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
the front edge of the load plate slides
under the retention lock (C).

Chapter 2

8. Insert the load lever under the retention
tab.

ASUS P7H55-M PRO 2-7

Chapter 2

2.3.2 Installing 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

• Use an LGA1156-compatible CPU heatsink and fan assembly only. The LGA1156

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:

LGA1156 heatsink and fan assembly comes in a push-pin design and

requires no tool to install.

socket is incompatible with the LGA775 and LGA1366 sockets in size and dimension.

1. Place the heatsink on top of the installed

A

CPU, ensuring that the four fasteners
match the holes on the motherboard.

2. Push down two fasteners at a time in

B

B

a diagonal sequence to secure the
heatsink and fan assembly in place.

A

B

A

1

B

2-8 Chapter 2: Hardware information

A

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

1

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.

2.3.3 Uninstalling the CPU heatsink and fan

To uninstall the CPU heatsink and fan:

Chapter 2

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

B

A

B

diagonal sequence to disengage the
heatsink and fan assembly from the
motherboard.

A

B

B

A

A

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

ASUS P7H55-M PRO 2-9

Chapter 2

2.4 System memory

2.4.1 Overview

The motherboard comes with four Double Data Rate 3 (DDR3) Dual In-line 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:

Recommended memory congurations

One DIMM:

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

Four DIMMs (dual-channel operation):Two DIMMs (dual-channel operation):

2-10 Chapter 2: Hardware information

2.4.2 Memory congurations

You may install 1GB, 2GB and 4GB unbuffered and non-ECC DDR3 DIMMs into the DIMM
sockets.

• You may install varying memory sizes in Channel A and Channel B. The system maps
the total size of the lower-sized channel for the dual-channel configuration. Any excess
memory from the higher-sized channel is then mapped for single-channel operation.

• Due to Intel spec definition, X.M.P. DIMMs and DDR3-1600 are supported for one
DIMM per channel only.

• According to Intel CPU spec, DIMM voltage below 1.65V is recommended to protect
the CPU.

• According to Intel CPU spec, CPUs with a core frequency of 2.66G support the
maximum DIMM frequency of up to DDR3-1333. To use DIMMs of a higher frequency
with a 2.66G CPU, enable the

3.5.1 Ai Overclock Tuner

• Always install DIMMs with the same CAS latency. For optimum compatibility, we
recommend that you obtain memory modules from the same vendor.

• Due to the memory address limitation on 32-bit Windows OS, when you install 4GB
or more memory on the motherboard, the actual usable memory for the OS can be
about 3GB or less. For effective use of memory, we recommend that you do any of the
following:

- Use a maximum of 3GB system memory if you are using a 32-bit Windows OS.

- Install a 64-bit Windows OS when you want to install 4GB or more on the

motherboard.
For more details, refer to the Microsoft® support site at
http://support.microsoft.com/kb/929605/en-us.

• This motherboard does not support DIMMs made up of 512Mb (64MB) chips or less
(Memory chip capacity counts in Megabit, 8 Megabit/Mb = 1 Megabyte/MB).

• The default memory operation frequency is dependent on its Serial Presence Detect
(SPD), which is the standard way of accessing information from a memory module.
Under the default state, some memory modules for overclocking may operate at a
lower frequency than the vendor-marked value. To operate at the vendor-marked
or at a higher frequency, refer to section 3.5 Ai Tweaker menu for manual memory
frequency adjustment.

• For system stability, use a more efficient memory cooling system to support a full
memory load (4 DIMMs) or overclocking condition.

DRAM O.C. Prole

for details.

feature in BIOS. Refer to section

Chapter 2

ASUS P7H55-M PRO 2-11

Chapter 2

P7H55-M PRO Motherboard Qualied Vendors Lists (QVL) DDR3-1600MHz

capability for Clarkdale CPU

DIMM socket

Vendor Part No. Size

A-DATA AD31600G001GMU 1GB SS - - 9-9-9-24 1.65~1.85 • •

A-DATA AX3U1600GB1G9-AG 2GB(2 x 1GB) SS - - 9-9-9-24 1.65~1.85 • •

A-DATA AX3U1600PB1G8-2P 2GB(2 x 1GB) SS - - 8-8-8-24 1.65-1.85 • • •

AD31600E001GMU 3GB(3 x 1GB)

A-DATA

A-DATA AX3U1600GB1G9-3G 3GB(3 x 1GB) SS - - 9-9-9-24 1.65~1.85 • •

A-DATA AX3U1600PB1G8-3P 3GB(3 x 1GB) SS - - 8-8-8-24 1.65-1.85 • • •

A-DATA AX3U1600GB2G9-AG(XMP) 4GB(2 x 2GB) DS - - 9-9-9-24 1.65~1.85 • • •

A-DATA AX3U1600XB2G7-EF(XMP) 4GB(2 x 2GB) DS - - 7-7-7-20 1.75-1.85 • •

A-DATA AD31600F002GMU(XMP) 6GB(3 x 2GB) DS - - 7-7-7-20 1.75-1.85 • •

AX3U1600GB2G9-3G(XMP) 6GB(3 x 2GB)

A-DATA

A-DATA AX3U1600GB2G9-3G(XMP) 6GB(3 x 2GB) DS - - 9-9-9-24 1.65~1.85 • • •

A-DATA AX3U1600GB2G9-3G 6GB(3 x 2GB) DS - - 9-9-9-24 1.65~1.85 • •

A-DATA AX3U1600XB2G7-FF(XMP) 6GB(3 x 2GB) DS - - 7-7-7-20 1.75-1.85 • •

CORSAIR TR3X3G1600C8D 3GB(3 x 1GB) SS - - 8-8-8-24 1.65 • •

CORSAIR TR3X3G1600C8DVer2.1(XMP) 3GB(3 x 1GB) SS - - 8-8-8-24 1.65 • •

CORSAIR TR3X3G1600C9Ver1.1(XMP) 3GB(3 x 1GB) SS - - 9-9-9-24 1.65 • •

CORSAIR CMG4GX3M2A1600C7(XMP) 4GB(2 x 2GB) DS - - 7-7-7-20 1.65 • • •

CORSAIR CMX4GX3M2A1600C9(XMP) 4GB(2 x 2GB) DS - - 9-9-9-24 1.65 • • •

CORSAIR TR3X6G1600C8DVer2.1(XMP) 6GB(3 x 2GB) DS - - 8-8-8-24 1.65 • •

CORSAIR TR3X6G1600C9Ver2.1(XMP) 6GB(3 x 2GB) DS - - 9-9-9-24 1.65

CORSAIR CMD8GX3M4A1600C8(XMP) 8GB(4 x 2GB) DS - - 8-8-8-24 1.65 • • •

CORSAIR CMX8GX3M4A1600C9(XMP) 8GB(4 x 2GB) DS - - 9-9-9-24 1.65 • • •

Crucial BL25664BN1608.16FF(XMP) 2GB DS - - 8-8-8-24 1.65 • •

G.SKILL F3-12800CL8T-6GBPI(XMP) 6GB(3 x 2GB) DS - - 8-8-8-21 1.6~1.65 • • •

G.SKILL F3-12800CL9T-6GBNQ 6GB(3 x 2GB) DS - - 9-9-9-24 1.5-1.6 • • •

KINGSTON KHX1600C9D3K3/12GX(XMP) 12GB(3 x

KINGSTON KHX1600C8D3K2/4GX(XMP) 4GB(2 x 2GB) DS - - 8 1.65 • •

KINGSTON KHX1600C8D3K2/4GX(XMP) 4GB(2 x 2GB) DS - - 8 1.65 • • •

KINGSTON KHX1600C8D3T1K2/4GX(XMP) 4GB(2 x 2GB) DS - - 8 1.65 • • •

KINGSTON KHX1600C9D3K3/6GX(XMP) 6GB(3 x 2GB) DS - - 9 1.65 • • •

OCZ OCZ3G1600LV3GK 3GB(3 x 1GB) SS - - 8-8-8 1.65 • •

OCZ OCZ3OB1600LV4GK 4GB(2 x 2GB) DS - - 9-9-9 1.65 • •

OCZ OCZ3P1600LV4GK 4GB(2 x 2GB) DS - - 7-7-7 1.65 • •

OCZ OCZ3X1600LV4GK(XMP) 4GB(2 x 2GB) DS - - 8-8-8 1.65 • •

OCZ OCZ3FXE1600C7LV6GK 6GB(3 x 2GB) DS - - 7-7-7 1.65 • •

OCZ OCZ3G1600LV6GK 6GB(3 x 2GB) DS - - 8-8-8 1.65 • •

OCZ OCZ3X1600LV6GK(XMP) 6GB(3 x 2GB) DS - - 8-8-8 1.65 • •

OCZ OCZ3X1600LV6GK(XMP) 6GB(3 x 2GB) DS - - 8-8-8 1.65 • •

Super Talent WB160UX6G8(XMP) 6GB(3 x 2GB) DS - - - - • • •

4GB)

SS/DSChip

Chip NO.

Brand

- -

SS

- -

DS

DS - - - 1.65

Timing
Dimm(Bios)

8-8-8-24 1.65-1.85

9-9-9-24 1.65~1.85

Voltage

support
(Optional)

A* B* C*

• •

•

• •

•

• •

• •

•

2-12 Chapter 2: Hardware information

P7H55-M PRO Motherboard Qualied Vendors Lists (QVL) DDR3-1333MHz

capability for Clarkdale CPU

DIMM socket

Vendor Part No. Size

A-DATA AD3133301GOU 1GB SS A-DATA AD30908C8D-15IG - - • •

A-DATA AD3U1333C4G9-B 4GB DS Hynix H5TQ2G83AFRH9C 1333-9-9-9-24 - • • •

CORSAIR TR3X3G1333C9 (Ver2.1) 3GB(3 x 1GB) SS - - 9-9-9-24 1.5 • •

CM3X2G1333C9 2GB

CORSAIR

CORSAIR BoxP/N:TW3X4G1333C9DHX

(CM3X2048­1333C9DHX)Ver3.2

Crucial CT12864BA1339.8FF 1GB SS MICRON D9KPT 9 - • • •

Crucial CT12864BA1339.8SFD 1GB SS MICRON MT8JF12864AY-

Crucial BL25664BN1337.16FF(XMP) 2GB DS - - 7-7-7-24 1.65 • • •

Crucial CT25664BA1339.16FF 2GB DS MICRON D9KPT 9 - • •

CT25664BA1339.16SFD 2GB

Crucial

Crucial CT25672BA1339.18FF 2GB DS MICRON D9KPT(ECC) 9 - • • •

ELPIDA EBJ10UE8BAW0-DJ-E 1GB SS ELPIDA J1108BABG-DJ-E 9 - • • •

ELPIDA EBJ10UE8BDF0-DJ-F 1GB SS ELPIDA J1108BDSE-DJ-F - - • • •

ELPIDA EBJ10UE8EDF0-DJ-F 1GB SS ELPIDA J1108EDSE-DJ-F - - • • •

ELPIDA EBJ21UE8BDF0-DJ-F 2GB DS ELPIDA J1108BDSE-DJ-F - - • • •

EBJ21UE8EDF0-DJ-F 2GB DS ELPIDA J1108EDSE-DJ-F - - • • •

ELPIDA

G.SKILL F3-10600CL7D-2GBPI 2GB(2 x 1GB) SS - - - 1.65 • •

G.SKILL F3-10600CL8D-2GBHK 2GB(2 x 1GB) SS - - - 1.65 • • •

G.SKILL F3-10666CL7T-6GBPK(XMP) 2GB DS - - 7-7-7-18 1.5-1.6

G.SKILL F3-10666CL7D-4GBPI(XMP) 4GB(2 x 2GB) DS - - 7-7-7-21 1.5 • • •

G.SKILL F3-10666CL7D-4GBRH(XMP) 4GB(2 x 2GB) DS - - 7-7-7-21 1.5 • • •

G.SKILL F3-10666CL8D-4GBHK(XMP) 4GB(2 x 2GB) DS - - 8-8-8-21 1.5-1.6 • • •

G.SKILL F3-10666CL8D-4GBRM(XMP) 4GB(2 x 2GB) DS - - 8-8-8-21 1.5-1.6 • • •

G.SKILL F3-10666CL9T-6GBNQ 6GB(3 x 2GB) DS - - 9-9-9-24 1.5 • • •

GEIL GG34GB1333C9DC 4GB(2 x 2GB) DS GEIL GL1L128M88BA12N 9-9-9-24 1.3 • • •

Hynix HMT112U6BFR8C-H9 1GB SS Hynix H5TQ1G83BFR 9 - • • •

Hynix HMT125U6BFR8C-H9 2GB DS Hynix H5TQ1G83BFR 9 - • •

Hynix HMT125U6BFR8C-H9 2GB DS Hynix H5TQ1G83BFRH9C 9 - • •

KINGSTON KVR1333D3N9/2G 2GB DS Qimonda IDSH1G-03A1F1C-

KINGSTON KVR1333D3N9/4G 4GB DS SAMSUNG K4B2G0846B-HCH9 9 1.5 • • •

MICRON MT8JTF12864AZ-1G4F1 1GB SS MICRON 9FF22 D9KPT 9 - • • •

OCZ OCZ3RPX1333EB2GK 2GB(2 x 1GB) SS NANYA - 6-5-5 1.85 • •

OCZ OCZ3G1333LV3GK 3GB(3 x 1GB) SS - - 9-9-9 1.65 • •

OCZ OCZ3P1333LV3GK 3GB(3 x 1GB) SS - - 7-7-7 1.65 • • •

OCZ OCZ3G1333ULV4GK 4GB(2 x 2GB) DS - - 8-8-8 1.65 • •

OCZ OCZ3RPX1333EB4GK 4GB(2 x 2GB) DS - - - 1.85 • •

OCZ OCZ3G1333LV6GK 6GB(3 x 2GB) DS - - 9-9-9 1.65 • • •

OCZ OCZ3P1333LV6GK 6GB(3 x 2GB) DS - - 7-7-7 1.65 • •

OCZ OCZX1333LV6GK(XMP) 6GB(3 x 2GB) DS NA - 8-8-8 1.6 • • •

PSC AL7F8G73D-DG1 1GB SS PSC A3P1GF3DGF - - • • •

PSC AL8F8G73D-DG1 2GB DS PSC A3P1GF3DGF - - • • •

SAMSUNG M378B2873DZ1-CH9 1GB SS SAMSUNG K4B1G0846D 9 - • • •

SAMSUNG M378B2873EH1-CH9 1GB SS SAMSUNG K4B1G0846E - - • • •

SAMSUNG M391B2873DZ1-CH9 1GB SS SAMSUNG K4B1G0846D(ECC) 9 - • • •

SAMSUNG M378B5673DZ1-CH9 2GB DS SAMSUNG K4B1G0846D 9 - • • •

SAMSUNG M378B5673EH1-CH9 2GB DS SAMSUNG K4B1G0846E - - • • •

SAMSUNG M391B5673DZ1-CH9 2GB DS SAMSUNG K4B1G0846D(ECC) 9 - • • •

SAMSUNG M378B5273BH1-CH9 4GB DS SAMSUNG K4B2G0846B-HCH9 9 - • • •

Super Talent W1333UX2GB(XMP) 2GB(2 x 1GB) SS - - 8 1.8 • • •

Transcend TS128MLK64V3U 1GB SS SAMSUNG K4B1G0846D 9 - • •

Transcend TS256MLK64V3U 2GB DS SAMSUNG K4B1G0846D 9 - • •

Asint SLY3128M8-EDJ 1GB SS Asint DDRIII1208-DJ - - • •

Asint SLY3128M8-EDJE 1GB SS ELPIDA J1108BASE-DJ-E - - • • •

ATP AQ28M64A8BJH9S 1GB SS SAMSUNG K4B1G0846E - - • • •

4GB(2 x 2GB) DS - - 9-9-9-24 1.70 • •

SS/

Chip Brand Chip NO.

DS

- -

DS

MICRON D9JNM

DS

1G4D1

13H

Timing
Dimm(Bios)

9-9-9-24 1.5

- -

- -

9 1.5

Voltage

support
(Optional)

A* B* C*

•

•

• • •

•

•

• • •

• • •

Chapter 2

ASUS P7H55-M PRO 2-13

Chapter 2

P7H55-M PRO Motherboard Qualied Vendors Lists (QVL) DDR3-1333MHz

capability for Clarkdale CPU

DIMM socket

Vendor Part No. Size

ATP AQ28M72D8BJH9S 1GB SS SAMSUNG K4B1G0846D(ECC) - - • • •

ATP AQ56M64B8BJH9S 2GB DS SAMSUNG K4B1G0846D - - • •

ATP AQ56M72E8BJH9S 2GB DS SAMSUNG K4B1G0846D(ECC) - - • • •

BUFFALO FSX1333D3G-1G

BUFFALO FSH1333D3G-T3G(XMP) 3GB(3 x 1GB) SS - - 7-7-7-20 - • • •

Elixir M2Y2G64CB8HA9N-CG 2GB DS - - - - • •

Patriot PDC32G1333LLK 1GB SS PATRIOT - 7 1.7 • • •

Patriot PVS34G1333ELK 4GB(2 x 2GB) DS - - 9-9-9-24 1.5 • •

Patriot PVT36G1333ELK 6GB(3 x 2GB) DS - - 9-9-9-24 1.65 • • •

Silicon

SP001GBLTU1333S01

Power

Silicon

SP001GBLTU133S02 1GB SS S-POWER I0YT3E0 9 - • •

Power

1GB

1GB

SS/

Chip Brand Chip NO.

DS

SS -

SS NANYA

- -

NT5CB128M8AN-CG -

Timing
Dimm(Bios)

Voltage

-

-

support
(Optional)

A* B* C*

• •

• •

P7H55-M PRO Motherboard Qualied Vendors Lists (QVL) DDR3-1067MHz

capability for Clarkdale CPU

DIMM socket

Vendor Part No. Size

Crucial CT12864BA1067.8FF 1GB SS MICRON D9KPT 7 - • • •

Crucial CT12864BA1067.8SFD 1GB SS MICRON D9JNL 7 - • •

Crucial CT12872BA1067.9FF 1GB SS MICRON D9KPT(ECC) 7 - • • •

Crucial CT25664BA1067.16FF 2GB DS MICRON D9KPT 7 - • • •

Crucial CT25664BA1067.16SFD 2GB DS MICRON D9JNL 7 - • • •

Crucial CT25672BA1067.18FF 2GB DS MICRON D9KPT(ECC) 7 - • • •

ELPIDA EBJ10UE8BAW0-AE-E 1GB SS ELPIDA J1108BABG-DJ-E 7 - • • •

ELPIDA EBJ10UE8EDF0-AE-F 1GB SS ELPIDA J1108EDSE-DJ-F - - • • •

ELPIDA EBJ11UD8BAFA-AG-E 1GB DS ELPIDA J5308BASE-AC-E 8 - • •

ELPIDA EBJ21UE8EDF0-AE-F 2GB DS ELPIDA J1108EDSE-DJ-F - - • • •

Hynix HMT112U6AFP8C-G7N0 1GB SS HYNIX H5TQ1G83AFPG7C 7 - • • •

Hynix HYMT112U64ZNF8-G7 1GB SS HYNIX HY5TQ1G831ZNFP-G7 7 - • •

Hynix HMT125U6AFP8C-G7N0 2GB DS HYNIX H5TQ1G83AFPG7C 7 - • • •

Hynix HYMT125U64ZNF8-G7 2GB DS HYNIX HY5TQ1G831ZNFP-G7 7 - • • •

KINGSTON KVR1066D3N7/1G 1GB SS KINGSTON D1288JEKAPA7U 7 1.5 • •

KINGSTON KVR1066D3N7/2G 2GB DS KINGSTON D1288JEKAPGA7U 7 1.5 • •

KINGSTON KVR1066D3N7/2G 2GB DS ELPIDA J1108BABG-DJ-E - 1.5 • •

KINGSTON KVR1066D3N7/4G 4GB DS SAMSUNG K4B2G0846B-HCF8 - 1.5 • • •

MICRON MT8JTF12864AY-1G1D1 1GB SS MICRON 7VD22 7 - • •

MICRON MT8JTF12864AZ-1G1F1 1GB SS MICRON 8ZF22 D9KPV 7 - • • •

MICRON MT16JTF25664AY-1G1D1 2GB DS MICRON 7VD22 7 - • •

MICRON MT16JTF25664AZ-1G1F1 2GB DS MICRON 8ZF22 D9KPV 7 - • • •

SAMSUNG M378B5273BH1-CF8 4GB DS SAMSUNG K4B2G0846B-HCF8 8 1.5 • •

Transcend TS256MLK64V1U 2GB DS ELPIDA J1108BABG-AE-E 7 - • • •

Asint SLY3128M8-EAE 1GB SS Asint DDRIII1208-AE - - • •

Asint SLZ3128M8-EAE 2GB DS Asint DDRIII1208-AE - - • • •

Elixir M2Y2G64CB8HA9N-BE 2GB DS - - - - • • •

WINTEC 3DU3191A-10 1GB DS Qimonda IDSH51-03A1F1C-10F 7 - • •

SS/

Chip Brand Chip NO.

DS

Timing
Dimm(Bios)

Voltage

support
(Optional)

A* B* C*

•

•

2-14 Chapter 2: Hardware information

Side(s): SS - Single-sided DS - Double-sided
DIMM support:

• A*:

configuration.

• B*:

Dual-channel memory configuration.

• C*:

pairs of Dual-channel memory configuration.

• ASUS exclusively provides hyper DIMM support function.

• Hyper DIMM support is subject to the physical characteristics of individual CPUs.

• According to Intel spec definition, DDR3-1600 is supported for one DIMM per channel

• According to Intel CPU spec, CPUs with a core frequency of 2.66G support the

• Visit the ASUS website for the latest QVL.

Supports one (1) module inserted into slot A1 or B1 as Single-channel memory

Supports two (2) modules inserted into the blue slots (A1 and B1) as one pair of

Supports four (4) modules inserted into both the blue and the black slots as two

only. ASUS exclusively provides two DDR3-1600 DIMM support for each memory
channel.

maximum DIMM frequency of up to DDR3-1333. To use DIMMs of a higher frequency
with a 2.66G CPU, enable the

3.5.1 Ai Overclock Tuner

DRAM O.C. Prole

for details.

feature in BIOS. Refer to section

Chapter 2

ASUS P7H55-M PRO 2-15

2.4.3 Installing a DIMM

Ensure to unplug the power supply before adding or removing DIMMs or other system
components. Failure to do so may cause severe damage to both the motherboard and the
components.

To install a DIMM

1. Unlock a DIMM socket by pressing the
retaining clip outward.

2. Align a DIMM on the socket such that
the notch on the DIMM matches the
break on the socket.

Chapter 2

3. Firmly insert the DIMM into the socket
until the retaining clip snaps back in
place and the DIMM is properly seated.

2.4.4 Removing a DIMM

Follow these steps to remove a DIMM.

1. Press the retaining clip outward to
unlock the DIMM.

2

DIMM notch

1

Unlocked retaining clip

A DIMM is keyed with a notch so that it fits in only one direction. DO NOT force a DIMM into
a socket to avoid damaging the DIMM.

3

Locked Retaining Clip

2

1

Support the DIMM lightly with your fingers when pressing the retaining clip. The DIMM
might get damaged when it flips out with extra force.

2. Remove the DIMM from the socket.

2-16 Chapter 2: Hardware information

2.5 Expansion slots

In the future, you may need to install expansion cards. The following subsections describe the
slots and the expansion cards that they support.

Ensure to unplug the power cord before adding or removing expansion cards. Failure to do
so may cause you physical injury and damage motherboard components.

2.5.1 Installing an expansion card

To install an expansion card

1. Before installing the expansion card, read the documentation that came with it and
make the necessary hardware settings for the card.

2. Remove the system unit cover (if your motherboard is already installed in a chassis).

3. Remove the bracket opposite the slot that you intend to use. Keep the screw for later
use.

4. Align the card connector with the slot and press firmly until the card is completely
seated on the slot.

5. Secure the card to the chassis with the screw you removed earlier.

6. Replace the system cover.

2.5.2 Conguringanexpansioncard

After installing the expansion card, configure it by adjusting the software settings.

1. Turn on the system and change the necessary BIOS settings, if any. Refer to Chapter 3
for information on BIOS setup.

2. Assign an IRQ to the card. Refer to the tables on the next page.

3. Install the software drivers for the expansion card.

Chapter 2

When using PCI cards on shared slots, ensure that the drivers support “Share IRQ” or that
the cards do not need IRQ assignments. Otherwise, conflicts will arise between the two PCI
groups, making the system unstable and the card inoperable. Refer to the table on the next
page for details.

ASUS P7H55-M PRO 2-17

2.5.3 Interruptassignments

Standardinterruptassignments

IRQ Priority Standardfunction

0 1 System Timer
1 2 Keyboard Controller
2 – Redirect to IRQ#9
4 12 Communications Port (COM1)*
5 13 IRQ Holder for PCI Steering*
6 14 Reserved
7 15 Reserved
8 3 System CMOS/Real Time Clock
9 4 IRQ Holder for PCI Steering*

Chapter 2

10 5 IRQ Holder for PCI Steering*
11 6 IRQ Holder for PCI Steering*
12 7 Reserved
13 8 Numeric Data Processor
14 9 Primary IDE Channel

*TheseIRQsareusuallyavailableforPCIdevices.

IRQassignmentsforthismotherboard

PCIEx16_1 shared – – – – – – –
PCIEx1_1
PCI_1 shared – – – – – – –
PCI_2 – shared – – – – – –
LAN – –
USB 2.0 Controller 1 – – – – – – – shared
USB 2.0 Controller 2 shared – – – – – – –
SATA Controller 1
SATA Controller 2 – – – – – shared – –
IDE – – shared – – – – –
Onboard VGA shared – – – – – – –
HD Audio – – – – – – shared –

A B C D E F G H

–

–

– – shared – – – – –

shared

– – – – –

–

shared

– – – –

2-18 Chapter 2: Hardware information

2.5.4 PCIslots

The PCI slots support cards such as a LAN card, SCSI card, USB card, and other cards that
comply with PCI specifications. Refer to the figure below for the location of the slot.

2.5.5 PCIExpressx1slot

This motherboard supports PCI Express x1 network cards, SCSI cards and other cards that
comply with the PCI Express specifications. Refer to the figure below for the location of the
slot.

2.5.6 PCIExpress2.0x16slot

This motherboard has one PCI Express 2.0 x16 slots that support PCI Express x16 2.0
graphic cards complying with the PCI Express specifications. Refer to the figure below for the
location of the slot.

Chapter 2

PCIslot2

PCIslot1

PCIe2.0x16_1slot

PCIExpressx1_1

ASUS P7H55-M PRO 2-19

2.6 Jumper

Clear RTC RAM (3-pin CLRTC)

This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the
CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM
data. The onboard button cell battery powers the RAM data in CMOS, which include system
setup information such as system passwords.

Chapter 2

To erase the RTC RAM

1. Turn OFF the computer and unplug the power cord.

2. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3 for
about 5–10 seconds, then move the cap back to pins 1-2.

3. Plug the power cord and turn ON the computer.

4. Hold down the <Del> key during the boot process and enter BIOS setup to re-enter data.

Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default
position. Removing the cap will cause system boot failure!

• If the steps above do not help, remove the onboard battery and move the jumper again
to clear the CMOS RTC RAM data. After the CMOS clearance, reinstall the battery.

• You do not need to clear the RTC when the system hangs due to overclocking. For
system failure due to overclocking, use the C.P.R. (CPU Parameter Recall) feature.
Shut down and reboot the system so the BIOS can automatically reset parameter
settings to default values.

• Due to the chipset behavior, AC power off is required to enable C.P.R. function. You
must turn off and on the power supply or unplug and plug the power cord before
rebooting the system.

2-20 Chapter 2: Hardware information

2.7 Connectors

2.7.1 Rear panel connectors

Chapter 2

Rear panel connectors

1. PS/2 keyboard port (purple) 6. HDMI out port***

2. Optical S/PDIF Out port 7.

3. VGA out port 8. USB 2.0 ports 3 and 4

4. LAN (RJ-45) port 9. USB 2.0 ports 1 and 2

5. USB 2.0 ports 5 and 6 10. Audio I/O ports**

*and**:RefertothetablesonthenextpageforLANportandaudioportdenitions.
***:Refertothenotesandtroubleshootingonmonitoroverscan/underscanproblemonthenext

pages.

ASUS P7H55-M PRO 2-21

DVI-D out port

*LANportLEDindications

ActivityLinkLED Speed LED

Status Description Status Description

OFF No link OFF 10 Mbps connection

ORANGE Linked ORANGE 100 Mbps connection

BLINKING Data activity GREEN 1 Gbps connection

**Audio2,4,6,or8-channelconguration

ACT/LINK

LED

LANport

SPEED

LED

Port Headset

Light Blue Line In Line In Line In Line In

Chapter 2

Lime Line Out Front Speaker Out Front Speaker Out Front Speaker Out

Pink Mic In Mic In Mic In Mic In

Orange – – Center/Subwoofer Center/Subwoofer

Black – Rear Speaker Out Rear Speaker Out Rear Speaker Out

Gray – – – Side Speaker Out

2-channel

4-channel 6-channel 8-channel

• This motherboard comes with multiple VGA output that features desktop extension on
two monitors. You can connect two monitors to any two of the onboard VGA, DVI-D,
and HDMI ports. Note that DVI-D/HDMI dual output works in OS environment only and
that during POST or BIOS setup, only DVI-D output is valid.

• Due to the Intel
some resolution options that your monitor does not support. When you set a resolution
not supported by your monitor, it will black out. If this happens, wait 15 seconds for the
system to return to its original setting or restart the system and press F8 to enter Safe
Mode. In Safe Mode, change the display setting to 800 x 600, and then restart the
system to adjust the monitor resolution from the Windows® Display Settings menu.

• Due to the Intel
overscan or underscan. Refer to the next page for the troubleshooting on monitor
overscan/underscan problem

• PlaybackofBlu-RayDiscs
The speed and bandwidth of the CPU/Memory, DVD player, and drivers will affect the
playback quality. Following is a configuration example for your reference. Using the
CPU/Memory of higher speed and bandwidth with the higher-version DVD player and
drivers will upgrade the playback quality.

CPU:IntelPentium2.8GHz

DIMM:DDR3-10662GB
Playbacksoftware-CyberLinkPowerDVDv9.0UltraBuild2227

• To play Blu-Ray Disc, make sure to use an HDCP compliant monitor.

• You can only play Blu-Ray Disc under Windows

®

VGA driver issue, the Windows® Display Settings menu may offer

®

driver issue, some monitor resolution settings will lead to monitor

®

Vista™ / 7™ OS.

2-22 Chapter 2: Hardware information

Troubleshooting on monitor overscan / underscan problem

1. Install

Intel Graphics Accelerator Driver

from the motherboard support DVD.

2. From the Windows
double-click the

Accelerator Driver
Properties

3. Click

Display > General Settings

and select a

Apply

.

4. Or you can click

®

notification area,

Intel(R) Graphics Media

icon and click

.

Resolution

. Click

Display > General
Settings > Scaling > Customize
Aspect Ratio
Scaling

and then click

. Move the

Vertical Scaling

and

Apply

.

Graphics

Horizontal

sliders

Chapter 2

ASUS P7H55-M PRO 2-23

2.7.2 Audio I/O connections

Audio I/O ports

Connect to Headphone and Mic

Chapter 2

Connect to Stereo / 2.1-channel Speakers

2-24 Chapter 2: Hardware information

Connect to 4.1-channel Speakers

Connect to 5.1-channel Speakers

Chapter 2

Connect to 7.1-channel Speakers

ASUS P7H55-M PRO 2-25

2.7.3 Internal connectors

1. IDE connector (40-1 pin PRI_IDE)

The onboard IDE connector is for the Ultra DMA 133/100 signal cable. There are three
connectors on each Ultra DMA 133/100 signal cable: blue, black, and gray. Connect
the blue connector to the motherboard’s IDE connector, then select one of the following
modes to configure your device.

Chapter 2

Drive jumper setting Mode of

device(s)

Single device Cable-Select or Master - Black

Two devices Cable-Select Master Black

Slave Gray

Master Master Black or gray

Slave Slave

• Pin 20 on the IDE connector is removed to match the covered hole on the Ultra DMA
cable connector. This prevents incorrect insertion when you connect the IDE cable.

• Use the 80-conductor IDE cable for Ultra DMA 133/100 IDE devices.

If any device jumper is set as “Cable-Select”, ensure that all other device jumpers have the
same setting.

Cable connector

2-26 Chapter 2: Hardware information

2. Intel® H55 Serial ATA connectors (7-pin SATA 1-6)

These connectors connect to Serial ATA hard disk drives and optical disc drives via
Serial ATA signal cables.

Chapter 2

You must install Windows® XP Service Pack 2 or later versions before using Serial ATA hard
disk drives.

ASUS P7H55-M PRO 2-27

3. USB connectors (10-1 pin USB78; USB910; USB1112)

These connectors are for USB 2.0 ports. Connect the USB module cable to any of
these connectors, then install the module to a slot opening at the back of the system
chassis. These USB connectors comply with USB 2.0 specification that supports up to
480 Mbps connection speed.

Chapter 2

4. Serial port connector (10-1 pin COM1)

This connector is for a serial (COM) port. Connect the serial port module cable to this
connector, then install the module to a slot opening at the back of the system chassis.

Never connect a 1394 cable to the USB connectors. Doing so will damage the motherboard!

The USB module is purchased separately.

The COM module is purchased separately.

2-28 Chapter 2: Hardware information

5. CPU, chassis, and power fan connectors
(4-pin CPU_FAN; 4-pin CHA_FAN1; 3-pin PWR_FAN)

Connect the fan cables to the fan connectors on the motherboard, ensuring that the
black wire of each cable matches the ground pin of the connector.

Do not forget to connect the fan cables to the fan connectors. Insufficient air flow inside the
system may damage the motherboard components. These are not jumpers! Do not place
jumper caps on the fan connectors!

• The CPU_FAN connector supports the CPU fan of maximum 2A (24 W) fan power.

• Only the CPU_FAN and CHA_FAN 1 connectors support the ASUS FAN Xpert feature.

Chapter 2

ASUS P7H55-M PRO 2-29

6. Digital audio connector (4-1 pin SPDIF_OUT)

This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port(s).
Connect the S/PDIF Out module cable to this connector, then install the module to a
slot opening at the back of the system chassis.

Chapter 2

7. Front panel audio connector (10-1 pin AAFP)

This connector is for a chassis-mounted front panel audio I/O module that supports
either HD Audio or legacy AC`97 audio standard. Connect one end of the front panel
audio I/O module cable to this connector.

The S/PDIF module is purchased separately.

• We recommend that you connect a high-definition front panel audio module to this
connector to avail of the motherboard’s high-definition audio capability.

• If you want to connect a high-definition front panel audio module to this connector, set

Front Panel Type

the
AC'97 front panel audio module to this connector, set the item to
this connector is set to

2-30 Chapter 2: Hardware information

item in the BIOS setup to

[HD Audio]

.

[HD Audio];

if you want to connect an

[AC97]

. By default,

8. ATX power connectors (24-pin EATXPWR; 8-pin EATX12V)

These connectors are for ATX power supply plugs. The power supply plugs are
designed to fit these connectors in only one orientation. Find the proper orientation and
push down firmly until the connectors completely fit.

• For a fully configured system, we recommend that you use a power supply unit
(PSU) that complies with ATX 12 V Specification 2.0 (or later version) and provides a
minimum power of 350 W.

• Do not forget to connect the 8-pin EATX12 V power plug; otherwise, the system will
not boot.

• Use of a PSU with a higher power output is recommended when configuring a system
with more power-consuming devices. The system may become unstable or may not
boot up if the power is inadequate.

• If you are uncertain about the minimum power supply requirement for your system,
refer to the Recommended Power Supply Wattage Calculator at

com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us

Seventeam ST-522HLP T.C.STAR D420 CoolerMaster RS-750

Seventeam ST550EAJ-05F OCZ ELITEXSTREAM 1000 CWT PSH650V-D

ASUS P-50GA Seasonic SS-900HP CWT PSH750V-D

ASUS P-55GA Snake PSH850V Delta GPS-350AB

ASUS U-65GA Silverstone SST-ST85F EnerMAX EG495AX-VE (E)(24P)

ASUS U-75HA Silverstone ZM1200M EnerMAX ELT500AWT

AXE-AA1000U-C Tagan TG1100-U33 FSP FSP500-60GLN

Be quiet P6-PRO-850W Thermaltake W0132RE Gigabyte M550A-D1

Be quiet BN077 Thermaltake W0133RU Gigabyte P610A-C1

CoolerMaster RS-850EMBA Thermaltake W0171 GoldenField ATX-S398

Corsair CMPSU-620HX AcBel API4PC24 GoldenField ATX-S550

Corsair HX1000W Aelta GPS-550AB I-cuteAP-600S

EnerMAX EGX1000EWL Be quiet BN073 OCZ OCZ780MXS

HECHUAN ST-ATX330 CoolerMaster RS-650 Seasonic SS-351HT

Seasonic SS-460HS Seventeam ST-420BKP Thermaltake TWV500W-AP

Seasonic SS-500GB Snake PSH500V Thermaltake PUREPower-600AP

Seasonic SS-500HM Silverstone SST-ST50EF Zippy HP2-6500PE (G1)

Seasonic SS-550HT Silverstone PSU ST56ZF Zippy PSL6720P

Seasonic SS-600HT

PSU suggested list

http://support.asus.

Chapter 2

for details.

ASUS P7H55-M PRO 2-31

9. System panel connector (20-8 pin PANEL)

This connector supports several chassis-mounted functions.

Chapter 2

• System power LED (2-pin PLED)

This 2-pin connector is for the system power LED. Connect the chassis power LED
cable to this connector. The system power LED lights up when you turn on the system
power, and blinks when the system is in sleep mode.

• Hard disk drive activity LED (2-pin IDE_LED)

This 2-pin connector is for the HDD Activity LED. Connect the HDD Activity LED cable
to this connector. The IDE LED lights up or flashes when data is read from or written to
the HDD.

• System warning speaker (4-pin SPEAKER)

This 4-pin connector is for the chassis-mounted system warning speaker. The speaker
allows you to hear system beeps and warnings.

• ATX power button/soft-off button (2-pin PWRSW)

This connector is for the system power button. Pressing the power button turns the
system on or puts the system in sleep or soft-off mode depending on the BIOS settings.
Pressing the power switch for more than four seconds while the system is ON turns the
system OFF.

• Reset button (2-pin RESET)

This 2-pin connector is for the chassis-mounted reset button for system reboot without
turning off the system power.

2-32 Chapter 2: Hardware information

2.8 Startingupforthersttime

1. After making all the connections, replace the system case cover.

2. Be sure that all switches are off.

3. Connect the power cord to the power connector at the back of the system chassis.

4. Connect the power cord to a power outlet that is equipped with a surge protector.

5. Turn on the devices in the following order:

a. Monitor

b. External SCSI devices (starting with the last device on the chain)

c. System power

6. After applying power, the system power LED on the system front panel case lights up.
For systems with ATX power supplies, the system LED lights up when you press the
ATX power button. If your monitor complies with the “green” standards or if it has a
“power standby” feature, the monitor LED may light up or change from orange to green
after the system LED turns on.

The system then runs the power-on self tests or POST. While the tests are running, the

BIOS beeps (see the BIOS beep codes table below) or additional messages appear on
the screen. If you do not see anything within 30 seconds from the time you turned on
the power, the system may have failed a power-on test. Check the jumper settings and
connections or call your retailer for assistance.

BIOS Beep Description

One short beep VGA detected

One continuous beep followed by two
short beeps then a pause (repeated)
One continuous beep followed by three
short beeps

One continuous beep followed by four
short beeps

Quick boot set to disabled
No keyboard detected
No memory detected

No VGA detected

Hardware component failure

Chapter 2

7. At power on, hold down the <Delete> key to enter the BIOS Setup. Follow the
instructions in Chapter 3.

2.9 Turningoffthecomputer

While the system is ON, pressing the power switch for less than four seconds puts the system
on sleep mode or soft-off mode, depending on the BIOS setting. Pressing the power switch
for more than four seconds lets the system enter the soft-off mode regardless of the BIOS
setting. Refer to section

ASUS P7H55-M PRO 2-33

3.7 Power Menu

in Chapter 3 for details.

Chapter 2

2-34 Chapter 2: Hardware information

Chapter 3

Chapter 3: BIOS setup

3.1 Knowing BIOS

BIOS (Basic Input and Output System) stores system hardware settings such as storage
device configuration, overclocking settings, advanced power management, and boot device
configuration that are needed for system startup in the motherboard CMOS. In normal
circumstances, the default BIOS settings apply to most conditions to ensure optimum
performance. We recommend that you not change the default BIOS settings except in
the following circumstances:

• An error message appears on the screen during the system bootup and requests you to

run the BIOS Setup.

• You have installed a new system component that requires further BIOS settings or

update.

Inappropriate settings of the BIOS may result to instability or failure to boot. We strongly

recommend that you change the BIOS settings only with the help of a trained service
personnel.

3.2 Updating BIOS

The ASUS website publishes the latest BIOS versions to provide enhancements on system
stability, compatibility, or performance. However, BIOS updating is potentially risky. If there
is no problem using the current version of BIOS, DO NOT manually update the BIOS.
Inappropriate BIOS updating may result in the system’s failure to boot. Carefully follow the
instructions of this chapter to update your BIOS if necessary.

Visit the ASUS website at www.asus.com to download the latest BIOS file for this
motherboard.

The following utilities allow you to manage and update the motherboard BIOS setup program.

1.

ASUS Update: Updates the BIOS in Windows® environment.

2.

ASUS EZ Flash 2: Updates the BIOS using a USB flash disk.

3.

ASUS CrashFree BIOS 3 utility: Restores the BIOS using the motherboard support
DVD or a USB flash drive when the BIOS file fails or gets corrupted.

4.

ASUS BIOS Updater: Updates and backups the BIOS in DOS environment using the
motherboard support DVD and a USB flash disk drive.

Refer to the corresponding sections for details on these utilities.

Save a copy of the original motherboard BIOS file to a USB flash drive in case you need
to restore the BIOS in the future. Copy the original motherboard BIOS using the ASUS
Update utility.

ASUS P7H55-M PRO

3-1

Chapter 3

3.2.1 ASUS Update utility

The ASUS Update is a utility that allows you to manage, save, and update the motherboard
BIOS in Windows® environment. The ASUS Update utility allows you to:

• Save the current BIOS file

• Download the latest BIOS file from the Internet

• Update the BIOS from an updated BIOS file

• Update the BIOS directly from the Internet

• View the BIOS version information

This utility is available in the support DVD that comes with the motherboard package.

ASUS Update requires an Internet connection either through a network or an Internet
Service Provider (ISP).

Installing ASUS Update

To install ASUS Update:

1. Place the support DVD in the optical drive.

2. From the

XX.

3. The ASUS Update utility is copied to your system.

Updating the BIOS through the Internet

To update the BIOS through the Internet:

1. From the Windows® desktop, click

Start > Programs > ASUS >
ASUSUpdate > ASUSUpdate. The

ASUS Update main window appears.

Main menu, click the Utilities tab, and then click Install ASUS Update VX.XX.

Quit all Windows® applications before you update the BIOS using this utility.

2. Select Update BIOS from the
Internet from the drop-down menu,
and then click Next.

3-2 Chapter 3: BIOS setup

3. Select the ASUS FTP site nearest
you to avoid network traffic, or click
Auto Select. Click Next.

4. From the FTP site, select the BIOS
version that you wish to download. Click
Next.

5. Follow the onscreen instructions to complete the update process.

The ASUS Update utility is capable of updating itself through the Internet. Always update
the utility to avail all its features.

Updating the BIOS through a BIOS le

To update the BIOS through a BIOS file:

1. Fom the Windows® desktop, click

Start > Programs > ASUS >
ASUSUpdate > ASUSUpdate. The

ASUS Update main window appears.

2. Select

Update BIOS from a le

from the dropdown menu, then click
Next.

3. Locate the BIOS file from the Open
window, then click Open.

4. Follow the onscreen instructions to
complete the update process.

P7H55PRO.ROM

Chapter 3

ASUS P7H55-M PRO

P7H55PRO

Ensure to load the BIOS default
settings to ensure system
compatibility and stability. Select the
Load Setup Defaults item under
the Exit menu. See section 3.10 Exit
Menu for details.

3-3

3.2.2 ASUS EZ Flash 2 utility

The ASUS EZ Flash 2 feature allows you to update the BIOS without using an OS-based
utility.

Before you start using this utility, download the latest BIOS from the ASUS website at www.
asus.com.

To update the BIOS using EZ Flash 2

1. Insert the USB flash disk that contains the latest BIOS file to the USB port, and then
launch EZ Flash 2 in any of these two ways:

• Press <Alt> + <F2> during POST.

• Enter the BIOS setup program. Go to the

press <Enter> to enable it.

Press <Tab> to switch between drives until the correct BIOS file is found.

ASUSTek EZ Flash 2 BIOS ROM Utility V4.10

FLASH TYPE: WINBOND 25X/Q64

Current ROM

BOARD: P7H55-M PRO
VER: 0113
DATE: 11/03/2009

PATH: A:\

A:

P7H55PRO.ROM 2097152 2009-08-06 17:30:48

Tools menu to select EZ Flash 2 and

Update ROM

BOARD: Unknown
VER: Unknown
DATE: Unknown

Chapter 3

Note

[Enter] Select or Load [Tab] Switch [V] Drive Info
[Up/Down/Home/End] Move [B] Backup [Esc] Exit

2. When the correct BIOS file is found, EZ Flash 2 performs the BIOS update process
and automatically reboots the system when done.

• Only a USB flash disk with FAT 32/16 format and single partition can support the
ASUS EZ Flash 2 utility.

• DO NOT shut down or reset the system while updating the BIOS to prevent system
boot failure!

Ensure to load the BIOS default settings to ensure system compatibility and stability. Select
the Load Setup Defaults item under the Exit menu. Refer to section 3.10 Exit Menu for
details.

3-4 Chapter 3: BIOS setup

3.2.3 ASUS CrashFree BIOS 3 utility

The ASUS CrashFree BIOS 3 utility is an auto recovery tool that allows you to restore the
BIOS file when it fails or gets corrupted during the updating process. You can restore a
corrupted BIOS file using the motherboard support DVD or a USB flash drive that contains
the BIOS file.

The BIOS file in the motherboard support DVD may be older than the BIOS file published
on the ASUS official website. If you want to use the newer BIOS file, download the file at
support.asus.com and save it to a USB flash drive.

Recovering the BIOS

To recover the BIOS

1. Turn on the system.

2. Insert the motherboard support DVD to the optical drive, or the USB flash drive
containing the BIOS file to the USB port.

3. The utility automatically checks the devices for the BIOS file. When found, the utility
reads the BIOS file and starts flashing the corrupted BIOS file.

4. Turn off the system after the utility completes the updating process and power on
again.

5. The system requires you to enter BIOS Setup to recover BIOS setting. To ensure
system compatibility and stability, we recommend that you press <F2> to load default
BIOS values.

DO NOT shut down or reset the system while recovering the BIOS! Doing so can cause
system boot failure!

ASUS P7H55-M PRO

Chapter 3

3-5

Chapter 3

3.2.4 ASUS BIOS Updater

The ASUS BIOS Updater allows you to update BIOS in DOS environment. This utility also
allows you to copy the current BIOS file that you can use as a backup when the BIOS fails or
gets corrupted during the updating process.

The succeeding utility screens are for reference only. The actual utility screen displays may
not be same as shown.

Before updating BIOS

1. Prepare the motherboard support DVD and a USB flash drive in FAT32/16 format and
single partition.

2. Download the latest BIOS file and BIOS Updater from the ASUS website at http://
support.asus.com and save them on the USB flash drive.

• NTFS is not supported under DOS environment. Do not save the BIOS file and BIOS
Updater to a hard disk drive or USB flash drive in NTFS format.

• Do not save the BIOS file to a floppy disk due to low disk capacity.

3. Turn off the computer and disconnect all SATA hard disk drives (optional).

Booting the system in DOS environment

1. Insert the USB flash drive with the latest BIOS file and BIOS Updater to the USB port.

2. Boot your computer. When the ASUS Logo appears, press <F8> to show the

Boot Device Select Menu. Insert the support DVD into the optical drive and select the
optical drive as the boot device.

Please select boot device:

SATA:XXXXXXXXXXXXXXXX

CDROM:XXXXXXXXXXXXXXX

USB:XXXXXXXXXXXXXXXXX
Network:XXXXXXXXXXXXX

BIOS

↑ and ↓ to move selection

ENTER to select boot device

ESC to boot using defaults

3. When the Make Disk menu appears, select the FreeDOS command prompt item by

pressing the item number.

4. At the FreeDOS prompt, type

d: and press <Enter> to switch the disk from

Drive C (optical drive) to Drive D (USB flash drive).

Welcome to FreeDOS (http://www.freedos.org)!

C:\>d:

D:\>

3-6 Chapter 3: BIOS setup

Backing up the current BIOS

To backup the current BIOS file using the BIOS Updater

Ensure that the USB flash drive is not write-protected and has enough free space to save
the file.

1. At the FreeDOS prompt, type bupdater /o[lename] and press <Enter>.

D:\>bupdater /oOLDBIOS1.rom

Filename Extension

The [filename] is any user-assigned filename with no more than eight alphanumeric

characters for the filename and three alphanumeric characters for the extension.

2. The BIOS Updater backup screen appears indicating the BIOS backup process. When
BIOS backup is done, press any key to return to the DOS prompt.

ASUSTek BIOS Updater for DOS V1.00b [09/06/22]

FLASH TYPE: MXIC 25L1605A

Current ROM

BOARD: P7H55-M PRO
VER: 0113
DATE: 11/03/2009

PATH: A:\

BIOS backup is done! Press any key to continue.

Note

Saving BIOS:

Update ROM

BOARD: Unknown
VER: Unknown
DATE: Unknown

ASUS P7H55-M PRO

Chapter 3

3-7

Updating the BIOS le

To update the BIOS file using BIOS Updater

Chapter 3

1. At the FreeDOS prompt, type

D:\>bupdater /pc /g

bupdater /pc /g and press <Enter>.

2. The BIOS Updater screen appears as below.

ASUSTek BIOS Updater for DOS V1.00b [09/06/22]

FLASH TYPE: MXIC 25L1605A

Current ROM

BOARD: P7H55-M PRO
VER: 0113
DATE: 11/03/2009

PATH: A:\

A:

Note

[Enter] Select or Load [Tab] Switch [V] Drive Info
[Up/Down/Home/End] Move [B] Backup [Esc] Exit

P7H55PRO.ROM 2097152 2009-08-06 17:30:48

Update ROM

BOARD: Unknown
VER: Unknown
DATE: Unknown

3. Press <Tab> to switch between screen fields and use the <Up/Down/Home/End> keys
to select the BIOS file and press <Enter>. BIOS Updater checks the selected BIOS file
and prompts you to confirm BIOS update.

Are you sure to update BIOS?

Yes No

4. Select Yes and press <Enter>. When BIOS update is done, press <ESC> to exit BIOS
Updater. Restart your computer.

DO NOT shut down or reset the system while updating the BIOS to prevent system boot
failure!

• For BIOS Updater version 1.04 or later, the utility automatically exits to the DOS
prompt after updating BIOS.

• Ensure to load the BIOS default settings to ensure system compatibility and stability.
Select the Load Setup Defaults item under the Exit BIOS menu. See Chaper 3 of
your motherboard user manual for details.

• Ensure to connect all SATA hard disk drives after updating the BIOS file if you have
disconnected them.

3-8 Chapter 3: BIOS setup

3.3 BIOS setup program

A BIOS Setup program is provided for BIOS item modification. When you start up the
computer, the system provides you with the opportunity to run this program. Press <Del>
during the Power-On Self-Test (POST) to enter the Setup utility. Otherwise, POST continues
with its test routines.

If you wish to enter Setup after POST, restart the system by pressing <Ctrl> + <Alt> + <Delete>,
or by pressing the reset button on the system chassis. You can also restart by turning the
system off and then back on. Do this last option only if the first two failed.

The Setup program is designed to make it as easy to use as possible. Being a menu-driven
program, it lets you scroll through the various submenus and select from the available options
using the navigation keys.

• The BIOS setup screens shown in this section are for reference purposes only, and
may not exactly match what you see on your screen.

• If the system becomes unstable after changing any BIOS setting, load the default
settings to ensure system compatibility and stability. Select the Load Setup Defaults
item under the Exit menu. See section 3.10 Exit Menu for details.

• If the system fails to boot after changing any BIOS setting, try to clear the CMOS and
reset the motherboard to the default value. See section 2.6 Jumper for information on
how to erase the RTC RAM.

3.3.1 BIOS menu screen

Menu bar

Conguration eldsMenu items

General help

Main Ai Tweaker Advanced Power Boot Tools Exit

System Time [13:51:25]
System Date [Wed 11/04/2009]
Language [English]

SATA1 [HDT722516DLA380]
SATA2 [Not Detected]
SATA3 [ATAPI DVD DH1]
SATA4 [Not Detected]
SATA5 [Not Detected]
SATA6 [Not Detected]

Storage Conguration
System Information

v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.

Sub-menu items

BIOS SETUP UTILITY

Use [ENTER], [TAB]
or [SHIFT-TAB] to

select a eld.

Use [+] or [-] to

congure system Date.

←→ Select Screen
↑↓ Select Item

+- Change Field
Tab Select Field
F1 General Help
F10 Save and Exit
ESC Exit

Navigation keys

3.3.2 Menu bar

The menu bar on top of the screen has the following main items:

Main

Ai Tweaker

Advanced

Power

Boot

Tools

Exit

ASUS P7H55-M PRO

For changing the basic system configuration

For changing the overclocking settings

For changing the advanced system settings

For changing the advanced power management (APM) configuration

For changing the system boot configuration

For configuring options for special functions

For selecting the exit options and loading default settings

Chapter 3

3-9

3.3.3 Navigation keys

At the bottom right corner of a menu screen are the navigation keys for that particular menu.
Use the navigation keys to select items in the menu and change the settings.

The navigation keys may differ from one screen to another.

3.3.4 Menu items

The highlighted item on the menu bar displays the specific items for that menu. For example,
selecting Main shows the Main menu items.

The other items (Advanced, Power, Boot, and Exit) on the menu bar have their respective
menu items.

3.3.5 Submenu items

A solid triangle before each item on any menu screen means that the iteam has a submenu.
To display the submenu, select the item and press <Enter>.

3.3.6 Conguration elds

These fields show the values for the menu items. If an item is user-configurable, you can
change the value of the field opposite the item. You cannot select an item that is not user­configurable.

A configurable field is enclosed in brackets, and is highlighted when selected. To change the
value of a field, select it then press <Enter> to display a list of options. Refer to 3.3.7 Pop-up
window.

Chapter 3

3.3.7 Pop-up window

Select a menu item then press <Enter> to
display a pop-up window with the configuration
options for that item.

Main Advanced Power Boot Tools Exit

3.3.8 Scroll bar

A scroll bar appears on the right side of a
menu screen when there are items that do not
fit on the screen. Press the Up/Down arrow
keys or <Page Up> / <Page Down> keys to
display the other items on the screen.

BIOS SETUP UTILITY

Suspend Mode [Auto]
ACPI Version Features [Disabled]
ACPI APIC support [Enabled]

APM Conguration

Hardware Monitor

v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.

Disabled

Enabled

Scroll bar

Pop-up window

Use [ENTER], [TAB] or
[SHIFT-TAB] to select

a eld.

Use [+] or [-] to

congure system Time.

←→ Select Screen
↑↓ Select Item

+- Change Field
Tab Select Field
F1 General Help
F10 Save and Exit
ESC Exit

3.3.9 General help

At the top right corner of the menu screen is a brief description of the selected item.

3-10 Chapter 3: BIOS setup

3.4 Main menu

When you enter the BIOS Setup program, the Main menu screen appears, giving you an
overview of the basic system information. You can also set the system time and date and
BIOS language in this menu.

Refer to 3.3.1 BIOS menu screen for information on the menu screen items and how to
navigate through them.

Main Ai Tweaker Advanced Power Boot Tools Exit

System Time [13:51:25]
System Date [Wed 11/04/2009]
Language [English]

SATA1 [HDT722516DLA380]
SATA2 [Not Detected]
SATA3 [ATAPI DVD DH1]
SATA4 [Not Detected]
SATA5 [Not Detected]
SATA6 [Not Detected]

Storage Conguration
System Information

v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.

BIOS SETUP UTILITY

Use [ENTER], [TAB]
or [SHIFT-TAB] to

select a eld.

Use [+] or [-] to

congure system Date.

←→ Select Screen
↑↓ Select Item

+- Change Field
Tab Select Field
F1 General Help
F10 Save and Exit
ESC Exit

3.4.1 SATA 1–6

While entering Setup, the BIOS automatically detects the presence of SATA devices. There
is a separate submenu for each SATA device. Select a device item then press <Enter> to
display the SATA device information.

Main

SATA 1

Device : Hard Disk
Vendor : HDT722516DLA380
Size : 164.7GB
LBA Mode : Supported
Block Mode : 16Sectors
PIO Mode : 4
Async DMA : MultiWord DMA-2
Ultra DMA : Ultra DMA-5
SMART Monitoring:Supported

Type [Auto]
LBA/Large Mode [Auto]
Block(Multi-Sector Transfer)M [Auto]
PIO Mode [Auto]
DMA Mode [Auto]
SMART Monitoring [Auto]
32Bit Data Transfer [Enabled]

v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.

BIOS SETUP UTILITY

Select the type
of device connected
to the system.

←→ Select Screen
↑↓ Select Item

+- Change Field
F1 General Help
F10 Save and Exit
ESC Exit

Chapter 3

The BIOS automatically detects the values of the dimmed items (Device, Vendor, Size, LBA
Mode, Block Mode, PIO Mode, Async DMA, Ultra DMA, and SMART monitoring). These
values are not user-configurable. These items show N/A if no SATA device is installed in the
system.

ASUS P7H55-M PRO

3-11

Chapter 3

Type [Auto]

Allows you to select the type of SATA drive installed.

[Not Installed] Select this option if no SATA drive is installed.

[Auto] Allows automatic selection of the appropriate SATA device type.

[CDROM] Select this option if you are specifically configuring a CD-ROM drive.

[ARMD] Select [ARMD] (ATAPI Removable Media Device) if your device is either a

ZIP, LS-120, or MO drive.

LBA/Large Mode [Auto]

Enables or disables the LBA (Logical Block Addressing) mode.

[Auto] Select [Auto] to enable the LBA mode (Logical Block Addressing mode)

if the device supports this mode, and if the device was not previously
formatted with LBA mode disabled.

[Disabled] Disables this function.

Block (Multi-Sector Transfer) M [Auto]

Enables or disables data multi-sectors transfers.

[Auto] When set to [Auto], the data transfer from and to the device occurs in

multiple sectors at a time if the device supports multi-sector transfer feature.

[Disabled] When set to [Disabled], the data transfer from and to the device occurs one

sector at a time.

PIO Mode [Auto]

[Auto] Allows automatic selection of the PIO (Programmed input/output) modes,

which correspond to different data transfer rates.

[0] [1] [2] [3] [4] Set the PIO mode to Mode 0, 1, 2, 3, or 4.

DMA Mode [Auto]

DMA (Direct Memory Access) allows your computer to transfer data to and from the hardware
devices installed with much less CPU overhead.

The DMA mode consists of SDMA (single-word DMA), MDMA (multi-word DMA), and UDMA
(Ultra DMA). Setting to [Auto] allows automatic selection of the DMA mode.

SMART Monitoring [Auto]

[Auto] Allows automatic selection of the S.M.A.R.T (Smart Monitoring, Analysis,

[Enabled] Enables the S.M.A.R.T feature.

[Disabled] Disables the S.M.A.R.T feature.

and Reporting Technology).

32Bit Data Transfer [Enabled]

[Enabled] Sets the SATA controller to combine two 16-bit reads from the hard disk

[Disabled] Disables this function.

3-12 Chapter 3: BIOS setup

into a single 32-bit double word transfer to the processor. This makes
more efficient use of the PCI bus as fewer transactions are needed for the
transfer of a particular amount of data.

3.4.2 Storage Conguration

The Storage Configuration menu allows you to configure your storage devices. Select an item
then press <Enter> to display the submenu.

Main

Storage Conguration

SATA Conguration [Enhanced]

Hard Disk Write Protect [Disabled]
IDE Detect Time Out (Sec) [35]

BIOS SETUP UTILITY

Set [Compatible Mode]
when Legacy OS (i.e.
WIN ME, 98, NT4.0, MS
DOS) is used.

Set [Enhanced Mode]
when Native OS (i.e.
WIN2000, Win XP, Vista
is used.

SATA Conguration [Enhanced]

Configuration options: [Disabled] [Compatible] [Enhanced]

Hard Disk Write Protect [Disabled]

Disables or enables device write protection. This will be effective only if the device is
accessed through BIOS. Configuration option: [Disabled] [Enabled]

IDE Detect Time Out (Sec) [35]

Selects the time out value for detecting ATA/ATAPI devices. Configuration options: [0] [5] [10]
[15] [20] [25] [30] [35]

3.4.3 System Information

This menu gives you an overview of the general system specifications. The BIOS automatically
detects the BIOS information, CPU specification, and system memory in this menu.

Main

BIOS Information

BIOS Version : 0113
BIOS Build Date : 11/03/09

Processor

Type : Intel(R) Core(TM) i5 CPU 661 @

3.33GHz
Speed : 3333MHz

System Memory

Usable Size : 912MB

BIOS SETUP UTILITY

Chapter 3

ASUS P7H55-M PRO

3-13

Chapter 3

3.5 Ai Tweaker menu

The Ai Tweaker menu items allow you to configure overclocking-related items.

Be cautious when changing the settings of the Ai Tweaker menu items. Incorrect field
values can cause the system to malfunction.

The configuration options for this chapter vary depending on the CPU and DIMM model you
installed on the motherboard.

Main Ai Tweaker Advanced Power Boot Tools Exit

Congure System Performance Settings

Ai Overclock Tuner [Auto]
CPU Ratio Setting [Auto]
Intel(R) SpeedStep(TM) Tech [Enabled]
Intel(R) TurboMode Tech [Enabled]
Xtreme Phase Full Power Mode [Auto]
DRAM Frequency [Auto]
QPI Frequency [Auto]

DRAM Timing Control

CPU Differential Amplitude [Auto]
CPU Clock Skew [Auto]

******* Please key in numbers directly! *******

CPU Voltage Mode [Offset]
Offset Voltage [Auto]
IMC Voltage [Auto]

v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.

Scroll down to display the following items:

DRAM Voltage [Auto]
CPU PLL Voltage [Auto]
PCH Voltage [Auto]
iGPU Voltage [Auto]

***********************************************

Load-Line Calibration [Auto]
CPU Spread Spectrum [Auto]
PCIE Spread Spectrum [Auto]

BIOS SETUP UTILITY

Warning: this function
belongs to overclock­ing, and it may cause
instability.
Select a CPU level,
and the rest will be
auto-adjusted. If you
want to adjust more,
set Ai Overclock Tuner
to Manual after you
select a CPU level.

←→ Select Screen
↑↓ Select Item

+- Change Option
F1 General Help
F10 Save and Exit
ESC Exit

v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.

3.5.1 Ai Overclock Tuner [Auto]

Allows selection of CPU overclocking options to achieve desired CPU internal frequency.
Select either one of the preset overclocking configuration options:

Manual Allows you to individually set overclocking parameters.

Auto Loads the optimal settings for the system.

D.O.C.P Overclocks DRAM frequency by adjusting BCLK frequency.

X.M.P.

The configuration options for the following sub-item vary depending on the DIMMs you
install on the motherboard.

3-14 Chapter 3: BIOS setup

If you install memory module(s) supporting the eXtreme
Memory Profile (X.M.P.) Technology, choose this item to set the
profile(s) supported by your memory module(s) for optimizing
the system performance.

DRAM O.C. Profile [DDR3-1600MHz]

This item appears only when you set the Ai Overclock Tuner item to [D.O.C.P.] and
allows you to select a DRAM O.C. profile, which applies different settings to DRAM
frequency, DRAM timing and DRAM voltage.
Configuration options: [DDR3-1600MHz] [DDR3-1800MHz] [DDR3-1866MHz]
[DDR3-2000MHz] [DDR3-2133MHz] [DDR3-2200MHz]

DRAM Frequency
(MHz)

1333

1600

Above 1600

• When using DIMMs with a frequncy higher than the Intel® CPU spec, use this ASUS
exclusive DRAM O.C. Prole function to overclock the DRAM.

• Adjust BCLK frequency to obtain a better performance after applying the D.O.C.P
function.

Lynneld CPU Frequency (GHz)

2.66 2.8 2.93 2.8 Others

Auto Auto Auto D.O.C.P. Auto

D.O.C.P. Auto Auto D.O.C.P. D.O.C.P.

D.O.C.P. D.O.C.P. D.O.C.P. N/A N/A

Clarkdale CPU
Frequency (GHz)

eXtreme Memory Profile [High Performance]

This item appears only when you set the Ai Overclock Tuner item to [X.M.P.] and
allows you to select the X.M.P. mode supported by your memory module.
Configuration options: [High Performance] [High Frequency]

To obtain the best performance of the X.M.P. DIMM or 1600MHz DIMM, install only one
DIMM on each memory channel.

3.5.2 CPU Ratio Setting [Auto]

Allows you to adjust the ratio between CPU Core Clock and BCLK Frequency. Use the <+>
and <-> keys to adjust the value. The valid value ranges differently according to your CPU
model.

3.5.3 Intel(R) SpeedStep(TM) Tech [Enabled]

When set to [Disabled], the CPU runs at its default speed. When set to [Enabled], the CPU
speed is controlled by the operating system. Configuration options: [Disabled] [Enabled]

Chapter 3

3.5.4 Intel(R) TurboMode Tech [Enabled]

This item appears only if you set the CPU Ratio Setting item to [Auto]. Turbo mode allows
processor cores to run faster than marked frequency in specific condition.
Configuration options: [Disabled] [Enabled]

3.5.5 Xtreme Phase Full Power Mode [Auto]

[Auto] Automatic configuration.

[Enabled] Enables Full Power Mode to ensure the best CPU overclocking

performance.

ASUS P7H55-M PRO

3-15

Chapter 3

The following two items appear only when you set the Ai Overclock Tuner item to
[Manual], [D.O.C.P.] or [X.M.P.].

BCLK Frequency [XXX]

Allows you to adjust the Internal Base Clock (BCLK). Use the <+> and <-> keys to adjust the
value. You can also type the desired value using the numeric keypad. The values range from
80 to 500.

PCIE Frequency [XXX]

Allows you to set the PCI Express frequency. Use the <+> and <-> keys to adjust the PCIE
frequency. The values range from 100 to 200.

3.5.6 DRAM Frequency [Auto]

Allows you to set the DDR3 operating frequency.
Configuration options: [Auto] [DDR3-800MHz] [DDR3-1066MHz] [DDR3-1333MHz]
[DDR3-1600*]

• The DRAM Frequency configuration options vary with the BCLK Frequency item

settings.

• According to Intel CPU spec, CPUs with a core frequency of 2.66G support the
maximum DIMM frequency of up to DDR3 1333. To use DIMMs of a higher frequency
with a 2.66G CPU, enable the DRAM O.C. Prole feature in BIOS. Refer to section

3.5.1 Ai Overclock Tuner for details.

Selecting a very high DRAM frequency may cause the system to become unstable! If this
happens, revert to the default setting.

3.5.7 QPI Frequency [Auto]

Allows you to set the QuickPath Interconnect (QPI) frequency.
Configuration options: [Auto] [3200MHz] [3733MHz] [4800MHz] [5333MHz] [5867MHz]
[6400MHz]

3.5.8 DRAM Timing Control

The items in this menu allow you to set the DRAM timing control features.

The configuration options for some of the following items vary depending on the DIMMs
you install on the motherboard.

1st Information: 5-5-5-15-4-36-6-5-16

The values vary depending on your settings of the following sub-items:

DRAM CAS# Latency [Auto]

Configuration options: [Auto] [3 DRAM Clock] [4 DRAM Clock] – [10 DRAM Clock]
[11 DRAM Clock]

DRAM RAS# to CAS# Delay [Auto]

Configuration options: [Auto] [3 DRAM Clock] [4 DRAM Clock] – [14 DRAM Clock]
[15 DRAM Clock]

3-16 Chapter 3: BIOS setup

DRAM RAS# PRE Time [Auto]

Configuration options: [Auto] [3 DRAM Clock] [4 DRAM Clock] – [14 DRAM Clock]
[15 DRAM Clock]

DRAM RAS# ACT Time [Auto]

Configuration options: [Auto] [3 DRAM Clock] [4 DRAM Clock] – [30 DRAM Clock]
[31 DRAM Clock]

DRAM RAS# to RAS# Delay [Auto]

Configuration options: [Auto] [1 DRAM Clock] – [7 DRAM Clock]

DRAM REF Cycle Time [Auto]

Configuration options: [Auto] [48 DRAM Clock] [60 DRAM Clock] [72 DRAM Clock]
[82 DRAM Clock] [88 DRAM Clock] [90 DRAM Clock] [100 DRAM Clock] [110 DRAM
Clock] [114 DRAM Clock] [118 DRAM Clock] [122 DRAM Clock] [126 DRAM Clock]
[130 DRAM Clock] [134 DRAM Clock] [138 DRAM Clock] [142 DRAM Clock] [150
DRAM Clock] [160 DRAM Clock] [170 DRAM Clock] [180 DRAM Clock] [190 DRAM
Clock] [200 DRAM Clock]

DRAM WRITE Recovery Time [Auto]

Configuration options: [Auto] [1 DRAM Clock] – [18 DRAM Clock]

DRAM READ to PRE Time [Auto]

Configuration options: [Auto] [3 DRAM Clock] – [15 DRAM Clock]

DRAM FOUR ACT WIN Time [Auto]

Configuration options: [Auto] [1 DRAM Clock] – [63 DRAM Clock]

3.5.9 CPU Differential Amplitude [Auto]

Different AMP might enhance BCLK overclocking ability.
Configuration options: [Auto] [700mV] [800mV] [900mV] [1000mV]

3.5.10 CPU Clock Skew [Auto]

Adjusting this item may help enhancing BCLK overclocking ability. You may need to adjust
the CPU Clock Skew item at the same time.
Configuration options: [Auto] [Normal] [Delay 100ps]–[Delay 1500ps]

Some of the following items are adjusted by typing the desired values using the numeric
keypad and press the <Enter> key. You can also use the <+> and <-> keys to adjust the
value. To restore the default setting, type [auto] using the keyboard and press the <Enter>
key.

3.5.11 CPU Voltage Mode [Offset]

Allows you to set the CPU Voltage Mode. Different sub-items appear according to the CPU
Voltage Mode item setting. Configuration options: [Offset] [Manual]

Offset Voltage [Auto]

This item appears only when you set the CPU Voltage Mode item to [Offset] and allows you
to set the Offset voltage. The values range from 0.00625V to 0.50000V with a 0.00625V
interval.

ASUS P7H55-M PRO

Chapter 3

3-17

Chapter 3

Offset Sign [-]

This item appears only when you set the Offset Voltage item to a value other than [Auto].

[+] To offset the voltage by a positive value.

[–] To offset the voltage by a negative value.

Fixed Voltage [Auto]

This item appears only when you set the CPU Voltage Mode item to [Manual] and allows you
to set a fixed CPU voltage. The values range from 0.85V to 1.60V with a 0.00625V interval.

Refer to the CPU documentation before setting the CPU Vcore voltage. Setting a high
VCore voltage may damage the CPU permanently, and setting a low VCore voltage may
make the system unstable.

3.5.12 IMC Voltage [Auto]

Allows you to set the CPU Integrated Memory Controller voltage. The values range from

1.10V to 1.20 with a 0.05V interval.

3.5.13 DRAM Voltage [Auto]

Allows you to set the DRAM voltage. The values range from 1.2V to 2.20V with a 0.10V
interval.

According to Intel CPU spec, DIMM voltage below 1.65V is recommended to protect the
CPU.

3.5.14 CPU PLL Voltage [Auto]

Allows you to set the CPU PLL voltage. The values range from 1.8V to 2.15V with a 0.05V
interval.

3.5.15 PCH Voltage [Auto]

Allows you to set the Platform Controller Hub voltage. The values range from 1.05V to 1.40V
with a 0.05V interval.

The system may need better cooling system to work stably under high voltage settings.

3.5.16 iGPU Voltage [Auto]

Allows you to set the integrated GPU voltage. The values range from 1.0V to 1.15V with a

0.05V interval.

3.5.17 Load-Line Calibration [Auto]

[Auto] Automatic configuration.

[Disabled] Follow Intel specifications.

[Enabled] Improve CPU VDroop directly.

3-18 Chapter 3: BIOS setup

3.5.18 CPU Spread Spectrum [Auto]

[Auto] Automatic configuration.

[Disabled] Enhances the BCLK overclocking ability.

[Enabled] Sets to [Enabled] for EMI control.

3.5.19 PCIE Spread Spectrum [Auto]

[Auto] Automatic configuration.

[Disabled] Enhances the PCIE overclocking ability.

[Enabled] Sets to [Enabled] for EMI control.

ASUS P7H55-M PRO

Chapter 3

3-19

3.6 Advanced menu

The Advanced menu items allow you to change the settings for the CPU and other system
devices.

Be cautious when changing the settings of the Advanced menu items. Incorrect field values
can cause the system to malfunction.

Chapter 3

Main Ai Tweaker Advanced Power Boot Tools Exit

CPU Conguration
Uncore Conguration
Onboard Devices Conguration
USB Conguration

PCIPnP

Intel VT-d [Disabled]

v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.

BIOS SETUP UTILITY

Congure CPU.

←→ Select Screen
↑↓ Select Item

Enter Go to Sub Screen
F1 General Help
F10 Save and Exit
ESC Exit

3.6.1 CPU Conguration

The items in this menu show the CPU-related information that the BIOS automatically
detects.

The items shown in this screen may be different due to the CPU you installed.

Advanced

Congure advanced CPU settings

Module Version:01.04

Manufacturer:Intel
Brand String:Intel(R) Core(TM) CPU 860
Frequency :2.80GHz
BCLK Speed :133MHz
Cache L1 :128 KB
Cache L2 :1024 KB
Cache L3 :8192 KB
Ratio Status:Unlocked (Min:09, Max:21)
Ratio Actual Value:21
CPUID :106E5

CPU Ratio Setting [Auto]
C1E Support [Enabled]
Hardware Prefetcher [Enabled]
Adjacent Cache Line Prefetch [Enabled]
Max CPUID Value Limit [Disabled]
Intel(R) Virtualization Tech [Enabled]

BIOS SETUP UTILITY

Sets the ratio between
CPU Core Clock and the
BCLK Frequency.
NOTE: If an invalid
ratio is set in CMOS
then actual and
setpoint values may
differ.

NOTE: Please key in
ratio numbers directly

←→ Select Screen
↑↓ Select Item

F1 General Help
F10 Save and Exit
ESC Exit

Scroll down to display the following items:

CPU TM function [Enabled]
Execute-Disable Bit Capability [Enabled]
Intel(R) HT Technology [Enabled]
Active Processor Cores [All]
A20M [Disabled]
Intel(R) SpeedStep(TM) Tech [Enabled]
Intel(R) TurboMode Tech [Enabled]
Intel(R) C-STATE Tech [Disabled]
C State package limit setting [Auto]

3-20 Chapter 3: BIOS setup

v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.

CPU Ratio Setting [Auto]

Allows you to adjust the ratio between CPU Core Clock and BCLK Frequency. Use the <+>
and <-> keys to adjust the value. The valid value ranges differently according to your CPU
model.

C1E Support [Enabled]

[Enabled] Enables the C1E support function. This item should be enabled in order to

enable the Enhanced Halt Sate.

[Disabled] Disables this function.

Hardware Prefetcher [Enabled]

[Enabled] Enables the Hardware Prefetcher function. This item should be enabled

in order to enable the L2 cache (MLC) Streamer Prefetcher for tuning
performance of the specific application.

[Disabled] Disables this function.

Adjacent Cache Line Prefetcher [Enabled]

[Enabled] Enables the Adjacent Cache Line Prefetcher function. This item should be

enabled in order to enable the L2 cache (MLC) Spatial Prefetcher for tuning
performance of the specific application.

[Disabled] Disables this function.

Max CPUID Value Limit [Disabled]

[Enabled] Allows legacy operating systems to boot even without support for CPUs

with extended CPUID functions.

[Disabled] Disables this function.

Intel(R) Virtualization Tech [Enabled]

[Enabled] Allows a hardware platform to run multiple operating systems separately

and simultaneously, enabling one system to virtually function as several
systems.

[Disabled] Disables this function.

CPU TM function [Enabled]

[Enabled] Enables the overheated CPU to throttle its clock speed to cool down.

[Disabled] Disables this function.

Execute Disable Bit [Enabled]

[Enabled] Enables the No-Execution Page Protection Technology.

[Disabled] Forces the XD feature flag to always return to zero (0).

Intel(R) HT Technology [Enabled]

[Enabled] Enables the Intel Hyper-Threading Technology.

[Disabled] Only one thread per activated CPU core is enabled.

Chapter 3

ASUS P7H55-M PRO

3-21

Chapter 3

Active Processor Cores [All]

[All] Activate all CPU cores in the processor package.

[1] Activate only 1 CPU core in the processor package.

[2] Activate 2 CPU cores in the processor package.

A20M [Disabled]

[Enabled] Legacy OSes and APs may need this function enabled.

[Disabled] Disables this function.

Intel(R) SpeedStep (TM) Tech [Enabled]

[Enabled] The CPU speed is controlled by the operating system.

[Disabled] The CPU runs at its default speed.

Intel(R) TurboMode tech [Enabled]

[Enabled] Allows processor cores to run faster than marked frequency in specific

[Disabled] Disables this function.

condition.

Intel(R) C-STATE Tech [Enabled]

[Enabled] Allows the CPU to save more power under idle mode. Enable this item only

[Disabled] Disables this function.

when you install a C-State Technology-supported CPU.

C State package limit setting [Auto]

This item appears only when you set the Intel(R) C-STATE Tech item to [Enabled]. We
recommend that you set this item to [Auto] for BIOS to automatically detect the C-State mode
supported by your CPU. Configuration options: [Auto] [C1] [C3] [C6]

3.6.2 Uncore Conguration

The Uncore Configuration menu allows you to change the advanced chipset settings.

Advanced

Uncore Conguration

IMC Type : Clarkdale

Memory Remap Feature [Enabled]

PCI MMIO Allocation: 4GB To 3072MB

Initiate Graphic Adapter [PEG/PCI]
iGPU Graphics Mode Select [Enabled, 32MB]
iGPU Frequency [Auto]

Current iGPU Frequency: 700 MHz

DVMT/FIXED Memory [256MB]

BIOS SETUP UTILITY

ENABLE: Allow
remapping of
overlapped PCI memory
above the total
physical memory.

DISABLE: Do not allow
remapping of memory.

3-22 Chapter 3: BIOS setup

Memory Remap Feature [Enabled]

[Disabled] Do not allow remapping of memory.

[Enabled] Allows for the segment of system memory that was previously overwritten

by PCI devices to be remapped above the total physical memory.

Initiate Graphic Adapter [PEG/PCI]

Allows you to select which graphics controller to use as the primary boot device.
Configuration options: [IGD] [PCI/IGD] [PCI/PEG] [PEG/IGD] [PEG/PCI]

iGPU Graphics Mode Select [Enabled, 32MB]

Allows you to decide whether to use the integrated GPU and select the amount of memory
used by the integrated GPU. Configuration options: [Disabled] [Enabled, 32MB] [Enabled,
64MB] [Enabled, 128MB] [Enabled, 256MB]

iGPU Frequency [Auto]

Allows you to adjust the integrated GPU frequency.
Configuration options: [Auto] [133 MHz] [167 MHz] [200 MHz] [233 MHz] [267 MHz]
[300 MHz] [333 MHz] [367 MHz] ...[1467 MHz] [1500 MHz]

DVMT/FIXED Memory [256MB]

Allows you to allocate a fixed amount of system memory as graphics memory.
Configuration options: [128MB] [256MB] [Maximum DVMT]

The [Maximum DVMT] option appears only when you install DIMM modules more than
1 GB.

This motherboard supports Intel® DVMT 5.0 Technology whose maximum graphics memory
size in total varies with the system memory size in total and the operating system. Refer to
the following table for details.

System Memory

1GB to < 1.5GB 512MB 365MB

1.5GB to < 2GB 768MB 808MB
2GB to < 3GB 1024MB 877MB
3GB to < 4GB — 1389MB

4GB and above — 1748MB

ASUS P7H55-M PRO

Maximum Total Graphics Memory

Windows® XP Windows® Vista™/ 7™

Chapter 3

3-23

3.6.3 Onboard Devices Conguration

Chapter 3

Advanced

Onboard Devices Conguration

HDA Controller [Enabled]
Front Panel Type [HD Audio]
SPDIF OUT Mode Setting [SPDIF]
Realtek LAN [Enabled]
LAN Boot ROM [Disabled]
J-Micron PATA Controller [Enabled]
Serial Port1 Address [3F8/IRQ4]

BIOS SETUP UTILITY

Enabled
Disabled

Options

HDA Controller [Enabled]

[Enabled] Enables the High Definition Audio Controller.

[Disabled] Disables the controller.

Front Panel Type [HD Audio]

[AC97] Set the front panel audio connector (AAFP) mode to legacy AC’97.

[HD Audio] Set the front panel audio connector (AAFP) mode to high-definition
audio.

SPDIF OUT Mode Setting [SPDIF]

[SPDIF] Set the audio output to SPDIF out.

[HDMI] Set to audio output to HDMI out.

Realtek LAN [Enabled]

[Enabled] Enables Realtek LAN Controller.

[Disabled] Disables Realtek LAN Controller.

LAN Boot ROM [Disabled]

This item appears only when you enable the previous item.

[Disabled] Disables Realtek LAN Boot ROM.

[Enabled] Enables Realtek LAN Boot ROM.

J-Micron PATA Controller [Enabled]

[Enabled] Enables the J-Micron PATA controller.

[Disabled] Disables the J-Micron PATA controller.

Serial Port1 Address [3F8/IRQ4]

Allows you to select the Serial Port1 base address.
Configuration options: [Disabled] [3F8/IRQ4] [2F8/IRQ3] [3E8/IRQ4] [2E8/IRQ3]

3-24 Chapter 3: BIOS setup

3.6.4 USB Conguration

The items in this menu allows you to change the USB-related features. Select an item then
press <Enter> to display the configuration options.

Advanced

USB Conguration

Module Version - 2.24.5-13.4

USB Devices Enabled:

2 Hubs

USB Functions [Enabled]
Legacy USB Support [Auto]
BIOS EHCI Hand-Off [Enabled]

The USB Devices Enabled item shows the auto-detected values. If no USB device is
detected, the item shows None.

USB Support [Enabled]

[Enabled] Enables the USB Host Controllers.

[Disabled] Disables the controllers.

The following items appear only when you set USB Support to [Enabled].

Legacy USB Support [Enabled]

[Disabled] Disables the function.

[Enabled] Enables the support for USB devices on legacy operating systems (OS).

[Auto] Allows the system to detect the presence of USB devices at startup. If

detected, the USB controller legacy mode is enabled. If no USB device is
detected, the legacy USB support is disabled.

BIOS EHCI Hand-off [Enabled]

[Disabled] Disables the function.

[Enabled] Enables the support for operating systems without an EHCI hand-off

feature.

BIOS SETUP UTILITY

Disabled
Enabled

Options

Chapter 3

ASUS P7H55-M PRO

3-25

Chapter 3

3.6.5 PCIPnP

The PCIPnP menu items allow you to change the advanced settings for PCI/PnP devices.

Advanced

Advanced PCI/PnP Settings

WARNING: Setting wrong values in below sections
may cause system to malfunction.

Plug And Play O/S [No]

BIOS SETUP UTILITY

NO: lets the BIOS

congure all the

devices in the
system.

Plug And Play O/S [No]

[Yes] When set to [Yes] and if you install a Plug and Play operating system, the

[No] When set to [No], BIOS configures all the devices in the system.

operating system configures the Plug and Play devices not required for
boot.

3.6.6 Intel VT-d [Disabled]

[Disabled] Disables the Intel Virtualization Technology for Directed I/O.

[Enabled] Enables the Intel Virtualization Technology for Directed I/O.

3-26 Chapter 3: BIOS setup

3.7 Power menu

The Power menu items allow you to change the settings for the Advanced Power
Management (APM). Select an item then press <Enter> to display the configuration options.

Main Ai Tweaker Advanced Power Boot Tools Exit

Suspend Mode [Auto]
Repost Video on S3 Resume [No]
ACPI 2.0 Support [Disabled]
ACPI APIC Support [Enabled]
EuP Ready [Disabled]

APM Conguration

Hardware Monitor

v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.

3.7.1 Suspend Mode [Auto]

Allows you to select the Advanced Configuration and Power Interface (ACPI) state to be used
for system suspend.

[S1 (POS) only] Sets the APCI suspend mode to S1/POS (Power On Suspend).

[S3 only] Sets the APCI suspend mode to S3/STR (Suspend To RAM).

[Auto] The system automatically configures the ACPI suspend mode.

3.7.2 Repost Video on S3 Resume [No]

Determines whether to invoke VGA BIOS POST on S3/STR resume.

[No] The system will not invoke VGA BIOS POST on S3/STR resume.

[Yes] The system invokes VGA BIOS POST on S3/STR resume.

BIOS SETUP UTILITY

Select the ACPI state
used for System
Suspend.

←→ Select Screen
↑↓ Select Item

+- Change Option
F1 General Help
F10 Save and Exit
ESC Exit

3.7.3 ACPI 2.0 Support [Disabled]

[Disabled] When set to [Disabled], the system will not add additional tables as per

ACPI 2.0 specifications.

[Enabled] When set to [Enabled], the system adds additional tables as per ACPI 2.0

specifications.

3.7.4 ACPI APIC Support [Enabled]

[Disabled] When set to [Disabled], the system disable the Advanced Configuration and

Power Interface (ACPI) support in the Advanced Programmable Interrupt
Controller (APIC).

[Enabled] When set to [Enabled], the ACPI APIC table pointer is included in the RSDT

pointer list.

3.7.5 EuP Ready [Disabled]

[Disabled] Disables the Energy Using Products (EuP) Ready function.

[Enabled] Allows BIOS to switch off some power at S5 state to get system ready for

the EuP requirement. When set to [Enabled], power for WOL, WO_USB,
audio and onboard LEDs will be switched off at S5 state.

ASUS P7H55-M PRO

Chapter 3

3-27

3.7.6 APM Conguration

Chapter 3

Power

APM Conguration

Restore on AC Power Loss [Power Off]
Power On By RTC Alarm [Disabled]
Power On By External Modems [Disabled]
Power On By PCI Devices [Disabled]
Power On By PCIE Devices [Disabled]
Power On By PS/2 Keyboard [Disabled]

BIOS SETUP UTILITY

<Enter> to select
whether or not to
restart the system
after AC power loss.

Restore On AC Power Loss [Power Off]

[Power Off] The system goes into off state after an AC power loss.

[Power On] The system goes into on state after an AC power loss.

[Last State] The system goes into either off or on state, whatever the system state was

before the AC power loss.

Power On By RTC Alarm [Disabled]

[Disabled] Disables RTC to generate a wake event.

[Enabled] When set to [Enabled], the items

RTC Alarm Date (Days) / System Time

will become user-configurable with set values.

Power On By External Modems [Disabled]

[Disabled] Disables to power up the computer when the external modem receives a

[Enabled] The computer could be powered up when the external modem receives a

call while the computer is in Soft-off mode.

call while the computer is in Soft-off mode.

The computer cannot receive or transmit data until the computer and applications are fully
running. Thus, connection cannot be made on the first try. Turning an external modem
off and then back on while the computer is off causes an initialization string that turns the
system power on.

Power On By PCI Devices [Disabled]

[Disabled] Disables the PME to wake up from S5 by PCI devices.

[Enabled] Allows you to turn on the system through a PCI LAN or modem card. This

feature requires an ATX power supply that provides at least 1A on the
+5VSB lead.

Power On By PCIE Devices [Disabled]

Allows you to enable or disable the PCIE devices to generate a wake event.

[Disabled] Disables the PCIE devices to generate a wake event.

[Enabled] Enables the PCIE devices to generate a wake event.

Power On By PS/2 Keyboard [Disabled]

[Disabled] Disables the Power On by a PS/2 keyboard.

[Enabled] Sets specific keys on the PS/2 keyboard to turn on the system. This feature

3-28 Chapter 3: BIOS setup

requires an ATX power supply that provides at least 1A on the +5VSB lead.

3.7.7 Hardware Monitor

Power

Hardware Monitor

CPU Temperature [35ºC/95ºF]
MB Temperature [34ºC/93ºF]

CPU Fan Speed [3590RPM]
CPU Q-Fan Control [Disabled]

Chassis Fan 1 Speed [N/A]
Chassis Q-Fan Control [Disabled]

Power Fan Speed [N/A]

CPU Voltage [ 1.040V]

3.3V Voltage [ 3.008V]
5V Voltage [ 4.776V]
12V Voltage [11.648V]

CPU/MB Temperature [xxxºC/xxxºF]

The onboard hardware monitor automatically detects and displays the CPU and motherboard
temperatures. Select Ignored if you do not wish to display the detected temperatures.

CPU Fan Speed [xxxxRPM] or [Ignored] / [N/A]
Chassis Fan 1 Speed [xxxxRPM] or [Ignored] / [N/A]
Power Fan Speed [xxxxRPM] or [Ignored] / [N/A]

The onboard hardware monitor automatically detects and displays the CPU, chassis,
and power fan speed in rotations per minute (RPM). If the fan is not connected to the
motherboard, the field shows N/A. Select Ignored if you do not wish to display the detected
speed.

CPU Q-Fan Control [Disabled]

[Disabled] Disables the CPU Q-Fan control feature.

[Enabled] Enables the CPU Q-Fan control feature.

CPU Fan Profile [Standard]

This item appears only when you enable the CPU Q-Fan Control feature and allows
you to set the appropriate performance level of the CPU fan.

[Standard] Sets to [Standard] to make the CPU fan automatically adjust

[Silent] Sets to [Silent] to minimize the fan speed for quiet CPU fan

[Turbo] Sets to [Turbo] to achieve maximum CPU fan speed.

[Manual] Sets to [Manual] to assign detailed fan speed control parameters.

depending on the CPU temperature.

operation.

BIOS SETUP UTILITY

CPU Temperature(PECI)

Chapter 3

The following items appear only when you set the CPU Q-Fan Control item to [Manual].

ASUS P7H55-M PRO

3-29

Chapter 3

CPU Upper Temperature [70ºC/158ºF]

Allows you to set the CPU upper temperature limit. When the CPU temperature reaches the
upper limit, the CPU fan will operate at the maximum speed. Configuration options: [40°C/104°F]
[50°C/122°F] [60°C/140°F] [70°C/158°F] [80°C/176°F] [90°C/194°F]

CPU Fan Max. Duty Cycle [100%]

Allows you to set the maximum CPU fan speed. Configuration options: [00%] [10%] [20%] [30%]
[40%] [50%] [60%] [70%] [80%] [90%] [100%]

CPU Fan Min. Duty Cycle [20%]

Allows you to set the minimum CPU fan speed. Configuration options: [00%] [10%] [20%]

Chassis Q-Fan Control [Disabled]

[Disabled] Disables the Chassis Q-Fan control feature.

[Enabled] Enables the Chassis Q-Fan control feature.

Chassis Fan Profile [Standard]

This item appears only when you enable the Chassis Q-Fan Control feature and
allows you to set the appropriate performance level of the chassis fan.

[Standard] Sets to [Standard] to make the chassis fan automatically adjust

depending on the chassis temperature.

[Silent] Sets to [Silent] to minimize the fan speed for quiet chassis fan

operation.

[Turbo] Sets to [Turbo] to achieve maximum chassis fan speed.

CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage

The onboard hardware monitor automatically detects the voltage output through the onboard
voltage regulators. Select Ignored if you do not want to detect this item.

3-30 Chapter 3: BIOS setup

3.8 Boot menu

The Boot menu items allow you to change the system boot options. Select an item then press
<Enter> to display the submenu.

Main Ai Tweaker Advanced Power Boot Tools Exit

Boot Settings

Boot Device Priority

Boot Settings Conguration

Security

v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.

3.8.1 Boot Device Priority

Boot

Boot Device Priority

1st Boot Device [Removable Dev.]
2nd Boot Device [Hard Drive]
3rd Boot Device [ATAPI DVD-ROM]

1st ~ xxth Boot Device [Removable Dev.]

These items specify the boot device priority sequence from the available devices. The
number of device items that appears on the screen depends on the number of devices
installed in the system.
Configuration options: [Removable Dev.] [Hard Drive] [ATAPI CD-ROM] [Disabled]

BIOS SETUP UTILITY

BIOS SETUP UTILITY

Species the Boot

Device Priority
sequence.

A virtual oppy disk

drive (Floppy Drive B:
) may appear when you
set the CD-ROM drive

as the rst boot

device.

←→ Select Screen
↑↓ Select Item

Enter Go to Sub Screen
F1 General Help
F10 Save and Exit
ESC Exit

Species the boot

sequence from the
available devices.

• To select the boot device during system startup, press <F8> when ASUS Logo
appears.

• To access Windows

• Press <F5> when ASUS Logo appears

• Press <F8> after POST.

ASUS P7H55-M PRO

®

OS in Safe Mode, do any of the following:

Chapter 3

3-31

3.8.2 Boot Settings Conguration

Chapter 3

Boot

Boot Settings Conguration

Quick Boot [Enabled]
Full Screen Logo [Enabled]
AddOn ROM Display Mode [Force BIOS]
Bootup Num-Lock [On]
Wait For ‘F1’ If Error [Enabled]
Hit ‘DEL’ Message Display [Enabled]

BIOS SETUP UTILITY

Allows BIOS to skip
certain tests while
booting. This will
decrease the time
needed to boot the
system.

Quick Boot [Enabled]

[Disabled] When set to [Disabled], BIOS performs all the POST items.

[Enabled] When set to [Enabled], BIOS skips some power on self tests (POST) while

booting to decrease the time needed to boot the system.

Full Screen Logo [Enabled]

[Disabled] Disables the full screen logo display feature.

[Enabled] Enables the full screen logo display feature.

Set this item to [Enabled] to use the ASUS MyLogo 2™ feature.

AddOn ROM Display Mode [Force BIOS]

[Force BIOS] The third-party ROM messages will be forced to display during the boot

[Keep Current] The third-party ROM messages will be displayed only if the third-party

sequence.

manufacturer had set the add-on device to do so.

Bootup Num-Lock [On]

[Off] Sets the power-on state of the NumLock to [Off].

[On] Sets the power-on state of the NumLock to [On].

Wait For ‘F1’ If Error [Enabled]

[Disabled] Disables this function.

[Enabled] The system waits for the <F1> key to be pressed when error occurs.

Hit ‘DEL’ Message Display [Enabled]

[Disabled] Disables this function.

[Enabled] The system displays the message “Press DEL to run Setup” during POST.

3-32 Chapter 3: BIOS setup

3.8.3 Security

The Security menu items allow you to change the system security settings. Select an item
then press <Enter> to display the configuration options.

Boot

Security Settings

Supervisor Password : Not Installed
User Password : Not Installed

Change Supervisor Password
Change User Passward

Change Supervisor Password

Select this item to set or change the supervisor password. The Supervisor Password item
on top of the screen shows the default Not Installed. After you set a password, this item
shows Installed.

To set a Supervisor Password:

1. Select the

2. From the password box, type a password composed of at least six letters and/or
numbers, then press <Enter>.

3. Confirm the password when prompted.

The message Password Installed appears after you successfully set your password.

To change the supervisor password, follow the same steps as in setting a user password.

To clear the supervisor password, select the Change Supervisor Password then press
<Enter>. The message Password Uninstalled appears.

Change Supervisor Password item and press <Enter>.

If you forget your BIOS password, you can clear it by erasing the CMOS Real Time Clock
(RTC) RAM. See section 2.7.1 Rear panel connectors for information on how to erase the
RTC RAM.

BIOS SETUP UTILITY

<Enter> to change
password.
<Enter> again to
disable password.

After you have set a supervisor password, the other items appear to allow you to change
other security settings.

ASUS P7H55-M PRO

Chapter 3

3-33

Chapter 3

Boot

Security Settings

Supervisor Password : Installed
User Password : Installed

Change Supervisor Password
User Access Level [Full Access]
Change User Password
Clear User Password
Password Check [Setup]

BIOS SETUP UTILITY

<Enter> to change
password.
<Enter> again to
disabled password.

User Access Level [Full Access]

This item allows you to select the access restriction to the Setup items.

[No Access] Prevents user access to the Setup utility.

[View Only] Allows access but does not allow change to any field.

[Limited] Allows changes only to selected fields, such as Date and Time.

[Full Access] Allows viewing and changing all the fields in the Setup utility.

Change User Password

Select this item to set or change the user password. The User Password item on top of the
screen shows the default Not Installed. After you set a password, this item shows Installed.

To set a User Password:

1. Select the

2. On the password box that appears, type a password composed of at least six letters
and/or numbers, then press <Enter>.

3. Confirm the password when prompted.

The message Password Installed appears after you set your password successfully.

To change the user password, follow the same steps as in setting a user password.

Change User Password item and press <Enter>.

Clear User Password

Select this item to clear the user password.

Password Check [Setup]

[Setup] BIOS checks for user password when accessing the Setup utility.

[Always]

3-34 Chapter 3: BIOS setup

BIOS checks for user password both when accessing Setup and booting
the system.

3.9 Tools menu

The Tools menu items allow you to configure options for special functions. Select an item
then press <Enter> to display the submenu.

Main Ai Tweaker Advanced Power Boot Tools Exit

ASUS O.C. Prole

AI NET 2

ASUS EZ Flash 2
Express Gate [Auto]
Enter OS Timer [10 Seconds]
Reset User Data [No]

v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.

3.9.1 ASUS O.C. Prole

This item allows you to store or load multiple BIOS settings.

Tools

O.C. PROFILE Conguration

O.C. Prole 1 Status : Not Installed
O.C. Prole 2 Status : Not Installed
O.C. Prole 3 Status : Not Installed
O.C. Prole 4 Status : Not Installed
O.C. Prole 5 Status : Not Installed
O.C. Prole 6 Status : Not Installed
O.C. Prole 7 Status : Not Installed
O.C. Prole 8 Status : Not Installed

Status:

Add Your CMOS Prole.

Name: [Default-Prole]

Save To: [Uninstalled]

Load CMOS Proles.

Load From: [Blank]

Start O.C. Prole

v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.

BIOS SETUP UTILITY

BIOS SETUP UTILITY

←→ Select Screen
↑↓ Select Item

Enter Go to Sub Screen
F1 General Help
F10 Save and Exit
ESC Exit

Typing your prole

name, [0-9][a-z][A-Z]
are acceptable.

←→ Select Screen
↑↓ Select Item

F1 General Help
F10 Save and Exit
ESC Exit

Chapter 3

Add Your CMOS Prole

Allows you to save the current BIOS file to the BIOS Flash. In the Name sub-item, type your
profile name and press <Enter>, and then choose a profile number to save your CMOS
settings in the Save to sub-item.

Load CMOS Proles

Allows you to load the previous BIOS settings saved in the BIOS Flash. Press <Enter>, and
choose a profile to load.

Start O.C. Prole

Allows you to run the utility to save and load CMOS. Press <Enter> to run the utility.

ASUS P7H55-M PRO

3-35

ASUSTek O.C. Prole Utility V2.10

Chapter 3

Current CMOS

BOARD: P7H55-M PRO
VER: 0113
DATE: 11/03/2009

PATH: A:\

A:

Note

[Enter] Select or Load [Tab] Switch [V] Drive Info
[Up/Down/Home/End] Move [B] Backup [Esc] Exit

Restore CMOS

BOARD: Unknown
VER: Unknown
DATE: Unknown

• This function can support devices such as a USB flash disk with FAT 32/16 format and
single partition only.

• DO NOT shut down or reset the system while updating the BIOS to prevent the
system boot failure!

• We recommend that you update the BIOS file only coming from the same memory/CPU
configuration and BIOS version.

• Only the CMO file can be loaded.

3.9.2 AI NET 2

Tools

AI NET 2
Pair Status Length

Check Realtek LAN cable [Disabled]

BIOS SETUP UTILITY

Check Realtek LAN
cable during POST.

It will take 3 to 10
seconds to diagnose
LAN cable.

Check Realtek LAN Cable [Disabled]

[Disabled] BIOS will not check the Realtek LAN cable during the Power-On Self-Test

[Enabled] BIOS checks the Realtek LAN cable during the Power-On Self-Test

(POST).

(POST).

3.9.3 ASUS EZ Flash 2

Allows you to run ASUS EZ Flash 2. When you press <Enter>, a confirmation message
appears. Use the left/right arrow key to select between [Yes] or [No], then press <Enter> to
confirm your choice. Check section 3.2.2 ASUS EZ Flash 2 utility for details.

3-36 Chapter 3: BIOS setup

3.9.4 Express Gate [Auto]

Allows you to enable or disable the ASUS Express Gate feature. The ASUS Express Gate
feature is a unique instant-on environment that provides quick access to the Internet browser
and Skype. Configuration options: [Disabled] [Enabled] [Auto]

Enter OS Timer [10 Seconds]

Sets countdown duration that the system waits at the Express Gate’s first screen
before starting Windows or other installed OS. Choose [Prompt User] to stay at the first
screen of Express Gate for user action.
Configuration options: [Prompt User] [1 second] [3 seconds] [5 seconds] [10 seconds]
[15 seconds] [20 seconds] [30 seconds]

Reset User Data [No]

Allows you to clear Express Gate’s user data.

[Reset] When setting this item to [Reset], ensure that you save the setting

[No] Set to [No] to disable the Reset User Data function when entering

The first time wizard will run again when you enter the Express Gate environment after
clearing its settings.

to the BIOS so that the user data will be cleared the next time you
enter the Express Gate. User data includes the Express Gate’s
settings as well as any personal information stored by the web
browser such as bookmarks, cookies, browsing history. This is
useful in the rare case where corrupt settings prevent the Express
Gate environment from launching properly.

the Express Gate.

ASUS P7H55-M PRO

Chapter 3

3-37

Chapter 3

3.10 Exit menu

The Exit menu items allow you to load the optimal or failsafe default values for the BIOS
items, and save or discard your changes to the BIOS items.

Main Ai Tweaker Advanced Power Boot Tools Exit

Exit Options

Exit & Save Changes
Exit & Discard Changes
Discard Changes

Load Setup Defaults

v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.

Pressing <Esc> does not immediately exit this menu. Select one of the options from this
menu or <F10> from the legend bar to exit.

Exit & Save Changes

Once you are finished making your selections, choose this option from the Exit menu to
ensure the values you selected are saved to the CMOS RAM. An onboard backup battery
sustains the CMOS RAM so it stays on even when the PC is turned off. When you select this
option, a confirmation window appears. Select Ok to save changes and exit.

If you attempt to exit the Setup program without saving your changes, the program prompts
you with a message asking if you want to save your changes before exiting. Press <Enter>
to save the changes while exiting.

BIOS SETUP UTILITY

Exit system setup
after saving the
changes.

F10 key can be used
for this operation.

←→ Select Screen
↑↓ Select Item

Enter Go to Sub Screen
F1 General Help
F10 Save and Exit
ESC Exit

Exit & Discard Changes

Select this option only if you do not want to save the changes that you made to the Setup
program. If you made changes to fields other than System Date, System Time, and
Password, the BIOS asks for a confirmation before exiting.

Discard Changes

This option allows you to discard the selections you made and restore the previously saved
values. After selecting this option, a confirmation appears. Select Ok to discard any changes
and load the previously saved values.

Load Setup Defaults

This option allows you to load the default values for each of the parameters on the Setup
menus. When you select this option or if you press <F5>, a confirmation window appears.
Select Ok to load default values. Select Exit & Save Changes or make other changes before
saving the values to the non-volatile RAM.

3-38 Chapter 3: BIOS setup

Chapter 4

Chapter 4: Software support

4.1 Installing an operating system

This motherboard supports Windows® XP/ 64-bit XP/ Vista / 64-bit Vista / 7 / 64-bit 7
operating systems (OS). Always install the latest OS version and corresponding updates to
maximize the features of your hardware.

• Motherboard settings and hardware options vary. Use the setup procedures presented
in this chapter for reference only. Refer to your OS documentation for detailed
information.

®

• Ensure that you install the Windows
installing the drivers for better compatibility and system stability.

4.2 Support DVD information

The support DVD that comes with the motherboard package contains the drivers, software
applications, and utilities that you can install to avail all motherboard features.

The contents of the support DVD are subject to change at any time without notice. Visit the
ASUS website at www.asus.com for updates.

4.2.1 Running the support DVD

Place the support DVD into the optical drive. The DVD automatically displays the Highlights
menu if Autorun is enabled in your computer. Click each menu tab and select the items you
want to install.

XP Service Pack 2 or later versions before

The Drivers menu shows the

available device drivers if

the system detects installed

devices. Install the necessary

drivers to use the devices.

The Utilities

menu shows the

applications and

other software that

the motherboard

supports.

Click an item

to install

Click to obtain the

corresponding

software manuals

If Autorun is NOT enabled in your computer, browse the contents of the support DVD to
locate the file ASSETUP.EXE from the BIN folder. Double-click the ASSETUP.EXE to run
the DVD.

ASUS P7H55-M PRO

The Manual menu contains
the list of supplementary user
manuals. Click an item to open
the folder of the user manual.

Click the Contact tab
to display the ASUS
contact information.

Click the Highlights
tab to display the
software information

Click an icon
to display DVD/
motherboard
information

4-1

4.2.2 Obtaining the software manuals

The software manuals are included in the support DVD. Follow the instructions below to get
the necessary software manuals.

The software manual files are in Portable Document Format (PDF). Install the Adobe®
Acrobat® Reader from the Utilities menu before opening the files.

1. Click the Manual tab. Click ASUS
Motherboard Utility Guide from
the manual list on the left.

2. The Manual folder of the support
DVD appears. Double-click the
folder of your selected software.

3. Some software manuals are
provided in different languages.
Double-click the language to
show the software manual.

Chapter 4

The screenshots in this section are for reference only. The actual software manuals
containing in the support DVD vary by models.

4-2 Chapter 4: Software support

4.3 Software information

Most of the applications in the support DVD have wizards that will conveniently guide you
through the installation. View the online help or readme file that came with the software
application for more information.

4.3.1 ASUS PC Probe II

PC Probe II is a utility that monitors the computer’s vital components, and detects and
alerts you of any problem with these components. PC Probe II senses fan rotations, CPU
temperature, and system voltages, among others. Because PC Probe II is software-based,
you can start monitoring your computer the moment you turn it on. With this utility, you are
assured that your computer is always at a healthy operating condition.

Launching PC Probe II

1. Install PC Probe II from the motherboard support DVD.

2. Launch PC Probe II by clicking Start > All Programs > ASUS > PC Probe II > PC

Probe II v1.xx.xx

3. The PC Probe II icon appears in the Windows
or restore the application.

PC Probe II main window

. The PC Probe II main window appears.

®

notification area. Click this icon to close

Button Function

Refer to the software manual in the support DVD or visit the ASUS website at
www.asus.com for detailed software configuration.

ASUS P7H55-M PRO

Opens the Configuration window

Opens the Report window

Opens the Desktop Management Interface window

Opens the Peripheral Component Interconnect window

Opens the Windows Management Instrumentation window

Opens the hard disk drive, memory, CPU usage window

Shows/Hides the Preference section

Minimizes the application

Closes the application

Chapter 4

4-3

4.3.2 ASUS AI Suite

ASUS AI Suite allows you to launch several ASUS utilities easily.

Launching AI Suite

1. Install AI Suite from the motherboard support DVD.

2. Launch AI Suite by clicking

xx. The AI Suite main window appears.

Start > All Programs > ASUS > AI Suite > AI Suite v1.xx.

3. The AI Suite icon

appears in the Windows® notification area. If you minimize the

application main window, click this icon to restore the window.

Using AI Suite

Click each utility button to launch the utility, or click the Normal button to restore system
default settings.

Click to open the monitor window that displays

system information such as CPU temperature,

CPU voltage, fan speed, and CPU/FSB frequency

Click to restore

default settings

Click to launch
each utility

Chapter 4

• The screenshots in this section are for reference only. The actual utility buttons vary
by models.

• Refer to the software manual in the support DVD or visit the ASUS website at
www.asus.com for detailed software configuration.

4-4 Chapter 4: Software support

4.3.3 ASUS Fan Xpert

Asus Fan Xpert allows you to adjust both the CPU and chassis fan speeds according to
different ambient temperatures and your PC’s system loading. The various fan profiles offer
flexible controls of fan speeds to achieve a quiet and cool system environment.

Launching Fan Xpert

After installing AI Suite from the motherboard support DVD, launch Fan Xpert by double­clicking the AI Suite tray icon and then clicking the Fan Xpert button on the AI Suite
main window.

Using Fan Xpert

Click to open the
Calibration window

Click to select a fan

Click to select a

fan prole

Click to apply

the settings

Click to display
the current CPU
temperature and the fan
speed ratio

Click to cancel
the settings

Fan proles

• Disable: disables the Fan Xpert function.

•

Standard: adjusts fan speed in a moderate pattern.

•

Silent: minimizes fan speed for quiet fan operation.

•

Turbo: maximizes the fan speed for the best cooling effect.

•

Intelligent: automatically adjusts the CPU fan speed according to the ambient

•

Stable: fixes the CPU fan speed to avoid noise caused by the unsteady fan rotation. The

•

User: Allows you to configure the CPU fan profile under certain limitations.

ASUS P7H55-M PRO

temperature.

fan will speed up when the temperature exceeds 70ºC.

Chapter 4

4-5

4.3.4 ASUS TurboV

ASUS TurboV allows you to easily overclock without exiting or rebooting the OS, and set up
the best O.C. settings for different scenarios.

Refer to the CPU documentation before adjusting CPU voltage settings. Setting a high
voltage may damage the CPU permanently, and setting a low voltage may make the
system unstable.

• For system stability, all changes made in ASUS TurboV will not be saved to BIOS
settings and will not be kept on the next system boot. Use the Save Profile function
to save your customized overclocking settings and manually load the profile after
Windows starts.

• EPU cannot run on the customized overclocking settings. Restart the computer to
launch EPU.

• For system stability, set ASUS EPU to High Performance
TurboV.

Launching ASUS TurboV

1. Install the ASUS TurboV utility from the motherboard support DVD.

2. Click Start > All Programs

Target settings

Default

settings

Click to show

more settings

Advanced

CPU and

chipset voltage

settings

> ASUS > TurboV > TurboV.

Save the current settings as a new prole

Mode while using ASUS

Voltage
Adjustment
bars

iGPU voltage and
frequency settings

Chapter 4

Applies all changes immediately Undoes all changes without applying

• GPU Boost is available when you install the GPU Boost driver from the motherboard
support DVD.

• For advanced overclock ability, adjust first the BIOS items, and then proceed more
detailed adjustments using TurboV.

• Refer to the software manual in the support DVD or visit the ASUS website at
www.asus.com for detailed software configuration.

4-6 Chapter 4: Software support

4.3.5 ASUS GPU Boost

ASUS GPU Boost allows you to overclock the integrated GPU voltage and integrated
GPU frequency in WIndows® environment and takes effect in real-time without exiting and
rebooting the OS.

Refer to the CPU documentation before adjusting iGPU voltage settings. Setting a high
voltage may damage the iGPU permanently, and setting a low voltage may make the
system unstable.

• ASUS GPU Boost is available only when you install the GPU Boost driver from the
motherboard support DVD.

• For system stability, all changes made in ASUS GPU Boost will not be saved to BIOS
settings and will not be kept on the next system boot. Use the Save Prole function
to save your customized overclocking settings and manually load the profile after
Windows starts.

• EPU cannot run on the customized overclocking settings. Restart the computer to
launch EPU.

• For system stability, set ASUS EPU to High Performance Mode
GPU Boost.

To launch ASUS GPU Boost

1. Install the ASUS TurboV utility from the motherboard support DVD.

2. Install the ASUS GPU Boost driver from the motherboard support DVD.

3. Click start > All Programs

4. Click More Setting

> ASUS > TurboV > TurboV.

from the TurboV main screen, and then click GPU Boost.

while using ASUS

ASUS P7H55-M PRO

Default
settings

Target
settings

Adjustment sliders

Click the Easy Mode button
to adjust iGPU frequency and
iGPU voltage simultaneously

Undoes all changes
without applying

Applies all
changes
immediately

Chapter 4

4-7

4.3.6 ASUS Turbo Key

ASUS Turbo Key allows the user to turn the PC power button into a physical overclocking
button. After the easy setup, Turbo Key can boost performances without interrupting ongoing
work or games—with just one touch!

Launching ASUS Turbo Key

1. Install ASUS Turbo Key from the motherboard support DVD.

2. Restart your computer. ASUS Turbo Key automatically starts after Windows

3. Double-click the ASUS Turbo Key icon in the
Windows® notification area to launch the Turbo
Key user interface.

®

start-up.

Conguring ASUS Turbo Key

1

2

3

4

1. Select your desired power button action. Select Turbo Key Off to keep the power button
as a common switch. Select Turbo Key On to boost system performance after pressing
the power button.

2. You can choose whether to show Turbo Key OSD and status by clicking the check
boxes in the Setting section.

3. You can decide the performance boost level by selecting
also load personal profiles saved in the ASUS TurboV utility. The default is “Ultimate
Mode”. For detailed ASUS TurboV configurations, refer to the software manual in the
support DVD or visit the ASUS website at www.asus.com.

4. Click

Apply for all settings to take effect.

Turbo Key Prole. You can

Chapter 4

Using ASUS Turbo Key

Press the power button on your computer chassis to use the Turbo Key function defined in
the Turbo Key user interface. Press the power button again to turn off the Turbo Key function.

Pressing and holding the power button for 4 seconds will turn off your computer.

Refer to the software manual in the support DVD or visit the ASUS website
at www.asus.com for detailed software configuration.

4-8 Chapter 4: Software support