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, modied or altered, unless
such repair, modication of alteration is authorized in writing by ASUS; or (2) the serial number of the
product is defaced or missing.
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS
DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS,
LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE),
EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY
DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR
INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE,
AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO
RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS
MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.
Products and corporate names appearing in this manual may or may not be registered trademarks or
copyrights of their respective companies, and are used only for identication or explanation and to the
owners’ benet, without intent to infringe.
Offer to Provide Source Code of Certain Software
This product may contain copyrighted software that is licensed under the General Public License (“GPL”)
and under the Lesser General Public License Version (“LGPL”). The GPL and LGPL licensed code in this
product is distributed without any warranty. Copies of these licenses are included in this product.
You may obtain the complete corresponding source code (as dened in the GPL) for the GPL Software,
and/or the complete corresponding source code of the LGPL Software (with the complete machinereadable “work that uses the Library”) for a period of three years after our last shipment of the product
including the GPL Software and/or LGPL Software, which will be no earlier than December 1, 2011, either
(1) for free by downloading it from http://support.asus.com/download;
or
(2) for the cost of reproduction and shipment, which is dependent on the preferred carrier and the location
where you want to have it shipped to, by sending a request to:
ASUSTeK Computer Inc.
Legal Compliance Dept.
15 Li Te Rd.,
Beitou, Taipei 112
Taiwan
In your request please provide the name, model number and version, as stated in the About Box of the
product for which you wish to obtain the corresponding source code and your contact details so that we
can coordinate the terms and cost of shipment with you.
The source code will be distributed WITHOUT ANY WARRANTY and licensed under the same license as
the corresponding binary/object code.
This offer is valid to anyone in receipt of this information.
ASUSTeK is eager to duly provide complete source code as required under various Free Open Source
Software licenses. If however you encounter any problems in obtaining the full corresponding source code
we would be much obliged if you give us a notication to the email address gpl@asus.com, stating the
product and describing the problem (please do NOT send large attachments such as source code archives
etc to this email address).
ii
Contents
Contents ...................................................................................................................... iii
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 modications 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 x it by yourself. Contact a qualied 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 qualied service
technician or your retailer.
viii
About this guide
This user guide contains the information you need when installing and conguring 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 yers,
that may have been added by your dealer. These documents are not part of the
standard package.
ix
Conventions used in this guide
To 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
VGAMulti-VGA output support: HDMI, DVI-D, and RGB ports
StorageIntel® H55 Express Chipset
LANRealtek® 8112L Gigabit LAN controller featuring AI NET2
USBNEC USB 3.0 controller
IEEE 1394VIA® VT6315N controller supports 2 x IEEE 1394a ports
AudioRealtek® 8-channel High Denition Audio CODEC
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
non-ECC, un-buffered memory
Dual channel memory architecture
Supports Intel® Extreme Memory Prole (XMP)
* Hyper DIMM support is subject to the physical characteristics of
individual CPUs. Some hyper DIMMs only support one DIMM
per channel. Refer to the Memory QVL for details.
** Refer to www.asus.com or this user manual for the Memory
QVL (Qualied Vendors Lists)
2 x PCI Express 2.0 x1 slots (2.5GT/s; gray slots)
1 x PCI slot
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
- 6 x SATA 3.0 Gb/s ports
Marvell® 88SE6111 SATA & PATA controller
- 1 x Ultra DMA 133/100/66 for up to 2 PATA devices
- 1 x External SATA 3.0 Gb/s port (SATA on-the-go)
- 2 x USB 3.0 ports (blue, at back panel)
Intel® H55 Express Chipset
- 10 x USB 2.0 ports (6 ports at mid-board, 4 ports at back panel)
(one at midboard, one at back panel)
- BD Audio Layer Content Protection
- Supports Jack-Detection, Multi-streaming, and
Front Panel Jack-Retasking
- Optical S/PDIF out port at back I/O
- ASUS Noise Filter
(continued on the next page)
xi
P7H55D-M EVO specications summary
ASUS unique featuresASUS Exclusive Overclocking Features
ASUS exclusive
overclocking features
- TurboV
- Turbo Key
- GPU Boost
ASUS Xtreme Design
ASUS Xtreme Phase
- 8+3 Phase Power Design
ASUS Exclusive Features
- Express Gate
- MemOK!
- ASUS EPU
ASUS Quiet Thermal Solutions
- ASUS Fanless Design: Stack Cool 3
- ASUS Fan Xpert
ASUS EZ DIY
- ASUS Q-DIMM
- ASUS Q-Connector
- ASUS O.C. Prole
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 2
- ASUS MyLogo 2™
- Multi-language BIOS
Precision Tweaker 2
- vCore: Adjustable CPU voltage at 0.00625V increment
- vIMC: Adjustable IMC voltage at 0.02V increment
- vDRAM Bus: Adjustable DRAM voltage at 0.02V increment
- vPCH: Adjustable PCH voltage at 0.01V increment
- vCPU_PLL: Adjustable CPU_PLL voltage at 0.02V increment
- iGPU: Adjustable iGPU voltage at 0.0125V increment
SFS (Stepless Frequency Selection)
- Internal Base Clock tuning from 80MHz up to 500MHz 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
P7H55D-M EVO specications summary
Back panel I/O ports1 x PS/2 keyboard port (purple)
Internal I/O connectors3 x USB connectors support additional 6 USB ports
ManageabilityWfM 2.0, DMI 2.0, WOL by PME, WOR by PME, PXE
Support DVD contentsDrivers
Form factoruATX form factor: 9.6 in. x 9.6 in. (24.5 cm x 24.5 cm)
*Specications are subject to change without notice.
1 x Optical S/PDIF Out port
1 x External SATA port
1 x HDMI out port
1 x DVI-D out port
1 x D-Sub out port
1 x IEEE 1394a port
1 x LAN (RJ-45) port
2 x USB 3.0/2.0 ports (blue)
4 x USB 2.0/1.1 ports
8-channel Audio I/O ports
1 x IDE connector
6 x SATA 3.0 Gb/s connectors
1 x CPU Fan connector
1 x Chassis Fan connectors (1 x 4-pin)
1 x Power Fan connector
1 x IEEE1394a connector
1 x COM connector
1 x Clear CMOS jumper
1 x S/PDIF Out header
1 x MemOK! button
Front panel audio connector
24-pin ATX Power connector
8-pin EATX 12V Power connector
System Panel (Q-Connector)
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)
xiii
xiv
Chapter 1
User Manual
Chapter 1: Product introduction
1.1 Welcome!
Thank you for buying an ASUS® P7H55D-M EVO motherboard!
The motherboard delivers a host of new features and latest technologies, making it another
standout in the long line of ASUS quality motherboards!
Before you start installing the motherboard, and hardware devices on it, check the items in
your package with the list below.
1.2 Package contents
Check your motherboard package for the following items.
ASUS P7H55D-M EVO motherboard1 x Ultra DMA 133/100/66 cable
Chapter 1
ASUS P7H55D-M EVO1-1
User guideSupport DVD
1 x 2-in-1 ASUS Q-Connector kit1 x ASUS I/O Shield
2 x Serial ATA 3.0 Gb/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 specications may
This motherboard supports the latest Intel® Lynneld / 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 integrated Graphics Processing Unit (GPU)
processors which goes with Intel® H55 chipset with VGA out can bring you to the whole new
experience of the next generation VGA performance. It also 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 chipset
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!
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.
True USB 3.0 Support
Experience ultra-fast data transfers at 4.8 Gb/s with USB 3.0–the latest connectivity standard.
Built to connect easily with next-generation components and peripherals, USB 3.0 transfers
data 10X faster and is also backward compatible with USB 2.0 components.
HDMI support
High-Denition 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 HD DVD and Blu-ray Discs, HDMI
provides you with the highest-quality home theater experience.
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 2-29 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/packaging to safeguard consumers’ health
while minimizing the impact on the environment.
1-2Chapter 1: Product Introduction
1.3.2 ASUS Exclusive 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 proles 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 exible frequency and voltage adjustments. Its ability to deliver
multiple overclocking proles also provides rapid and stable system-level upgrades. Refer to
page 4-7 for details.
1.3.3 ASUS Xtreme Phase
ASUS 8+3 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.
1.3.4 ASUS Exclusive Features
Chapter 1
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 3-38 and 4-10 for
details.
MemOK!
Memory compatibility is among the top concerns during computer upgrades. Worry no more.
MemOK! is the fastest memory booting solution today. This remarkable memory rescue tool
requires nothing but a push of a button to patch memory issues and get your system up and
running in no time. The technology is able to determine failsafe settings that can dramatically
improve your system booting success. Refer to page 2-28 for details.
ASUS EPU
The new ASUS EPU—the world’s rst 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.
ASUS P7H55D-M EVO1-3
1.3.5 ASUS Quiet Thermal Solutions
ASUS Quiet Thermal solution makes system more stable and enhances the overclocking
capability.
Chapter 1
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 efcient 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 you to adjust both the CPU and chassis fan speeds
according to different ambient temperatures caused by different climate conditions in different
geographic regions and your PC’s loading. The built-in variety of useful proles offer exible
controls of fan speed to achieve a quiet and cool environment. Refer to page 4-5 for details.
1.3.6 ASUS EZ DIY
ASUS EZ DIY feature collection provides you with easy ways to install computer components,
update the BIOS or back up your favorite settings.
ASUS Q-DIMM
ASUS Q-DIMM enhances your DIY experience by speeding up and simplifying the DIY
process!
ASUS Q-Connector
ASUS Q-Connector allows you to easily connect or disconnect the chassis front panel cables
to the motherboard. This unique module eliminates the trouble of connecting the system
panel cables one at a time and avoiding wrong cable connections. Refer to page 2-35 for
details.
ASUS O.C. Prole
The motherboard features the ASUS O.C. Prole that allows you to conveniently store or
load multiple BIOS settings. The BIOS settings can be stored in the CMOS or a separate le,
giving you the freedom to share and distribute your favorite settings.
ASUS CrashFree BIOS 3
ASUS CrashFree BIOS 3 allows you to restore corrupted BIOS data from a USB ash disk
containing the BIOS le. This protection eliminates the need to buy a replacement ROM chip.
ASUS EZ-Flash 2
ASUS EZ Flash 2 is a user-friendly utility that allows you to update the BIOS without using a
bootable oppy disk or an OS-based utility. Refer to page 3-4 for details.
1-4Chapter 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.
Chapter 2
ASUS P7H55D-M EVO2-1
2.2 Motherboard overview
2.2.1 Motherboard layout
Chapter 2
Refer to
2.8 Connectors
connectors.
2-2Chapter 2: Hardware information
for more information about rear panel connectors and internal
2.2.2 Layout contents
Connectors/Jumpers/SlotsPage
1. ATX power connectors (24-pin EATXPWR, 8-pin EATX12V)
2. LGA1156 CPU Socket
3. DDR3 DIMM slots
4. MemOK! switch
5. CPU, chassis, and power fan connectors (4-pin CPU_FAN,
4-pin CHA_FAN1, 3-pin PWR_FAN)
6. Clear RTC RAM (3-pin CLRTC)
7. Intel
8. IDE connector (40-1 pin PRI_EIDE)
9. System panel connector (20-8 pin PANEL)
10. Serial port connector (10-1 pin COM1)
11. USB connectors (10-1 pin USB78, USB910, USB1112)
12. IEEE 1394a port connector (10-1 pin IE1394_2)
13. Digital audio connector (4-1 pin SPDIF_OUT)
14. Front panel audio connector (10-1 pin AAFP)
15. Standby power LED (SB_PWR)
®
H55 Serial ATA 3.0 Gb/s connectors (7-pin SATA1–6 [blue])2-35
2-40
2-5
2-10
2-28
2-38
2-27
2-34
2-41
2-36
2-37
2-36
2-39
2-39
2-43
Chapter 2
ASUS P7H55D-M EVO2-3
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.
Chapter 2
DO NOT overtighten the screws! Doing so can damage the motherboard.
Place this side towards
the rear of the chassis
2-4Chapter 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® processor.
Ensure that all power cables are unplugged before installing the CPU.
• Upon purchase of the motherboard, ensure that the PnP cap is on the socket and
the socket contacts are not bent. Contact your retailer immediately if the PnP cap
is missing, or if you see any damage to the PnP cap/socket contacts/motherboard
components. ASUS will shoulder the cost of repair only if the damage is shipment/
transit-related.
• Keep the cap after installing the motherboard. ASUS will process Return Merchandise
Authorization (RMA) requests only if the motherboard comes with the cap on the
LGA1156 socket.
• The product warranty does not cover damage to the socket contacts resulting from
incorrect CPU installation/removal, or misplacement/loss/incorrect removal of the PnP
cap.
2.3.1 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 P7H55D-M EVO2-5
3. Lift the load lever in the direction of the
arrow until the load plate is completely
lifted.
Chapter 2
4. Remove the PnP cap from the CPU
socket by lifting the tab only.
Load plate
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
t the socket alignment keys into the CPU
CPU notches
notches.
The CPU ts in only one correct
orientation. DO NOT force the CPU
into the socket to prevent bending
the connectors on the socket and
damaging the CPU!
2-6Chapter 2: Hardware information
Gold
triangle
mark
Alignment keys
6. Apply some Thermal Interface Material
C
B
A
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 pre-applied
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 P7H55D-M EVO2-7
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.
Chapter 2
• 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®-certied
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.
LGA1156 heatsink and fan assembly comes in a push-pin design and does
not require any tool to install.
socket is incompatible with the LGA775 and LGA1366 sockets in size and dimension.
To install the CPU heatsink and fan:
1. Place the heatsink on top of the installed
CPU, ensuring that the four fasteners
match the holes on the motherboard.
B
A
B
2. Push down two fasteners at a time in
a diagonal sequence to secure the
heatsink and fan assembly in place.
A
B
2-8Chapter 2: Hardware information
B
1
A
Orient the heatsink and fan assembly such that the CPU fan cable is closest to the CPU fan
connector.
A
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:
1. Disconnect the CPU fan cable from the
connector on the motherboard.
2. Rotate each fastener counterclockwise.
B
3. Pull up two fasteners at a time in a
diagonal sequence to disengage the
heatsink and fan assembly from the
motherboard.
A
B
B
A
4. Carefully remove the heatsink and fan assembly from the motherboard.
A
A
Chapter 2
B
ASUS P7H55D-M EVO2-9
2.4 System memory
2.4.1 Overview
The motherboard comes with four Double Data Rate 3 (DDR3) Dual Inline Memory Modules
(DIMM) sockets.
A DDR3 module has the same physical dimensions as a DDR2 DIMM but is notched
differently to prevent installation on a DDR2 DIMM socket. DDR3 modules are developed for
better performance with less power consumption.
The gure illustrates the location of the DDR3 DIMM sockets:
Chapter 2
Recommended memory congurations
One DIMM:
Install one memory module in any slot as a single-channel operation.
Two DIMMs (dual-channel operation):
Four DIMMs (dual-channel operation):
2-10Chapter 2: Hardware information
2.4.2 Memory congurations
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 conguration. Any excess
memory from the higher-sized channel is then mapped for single-channel operation.
• Based on Intel specication, you can only install one X.M.P. DIMM per channel.
• 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).
DRAM O.C. Prole
for details.
feature in BIOS. Refer to section
Chapter 2
• 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
frequency adjustment.
• For system stability, use a more efcient memory cooling system to support a full
memory load (4 DIMMs) or overclocking condition.
ASUS P7H55D-M EVO2-11
3.5 Ai Tweaker menu
for manual memory
P7H55D-M EVO Motherboard Qualied Vendors Lists (QVL)
DDR3-2200MHz capability for Lynneld CPU at 2.8 and 2.93Ghz
VendorPart No.SizeSS/DS Chip Brand Chip NO. Timing Voltage
G.SKILL F3-17600CL8D-4GBPS(XMP) 4GB(2 x 2GB) DS--8-8-8-24 1.65•
G.SKILL
P7H55D-M EVO Motherboard Qualied Vendors Lists (QVL)
DDR3-2133MHz capability for Lynneld CPU at 2.8 and 2.93Ghz
VendorPart No.SizeSS/DS Chip Brand Chip NO. Timing Voltage
A-DATAAX3U2133XB2G10-EF(XMP) 4GB(2 x 2GB) DS---2.05~2.15 •
A-DATA AX3U2133XB2G10-FF(XMP) 6GB(3 x 2GB) DS---2.05~2.15 •
A-DATAAD32133F002GMU(XMP)6GB(3 x 2GB) DS---2.05~2.15 •
KINGSTON KHX2133C8D3T1K2/4GX(XMP) 4GB(2 x 2GB) DS--81.65•
Chapter 2
P7H55D-M EVO Motherboard Qualied Vendors Lists (QVL)
DDR3-2000MHz capability for Lynneld CPU at 2.8 and 2.93Ghz
VendorPart No.SizeSS/DS Chip Brand Chip NO. Timing Voltage
CORSAIR CMG4GX3M2A2000C8(XMP)4GB(2 x 2GB) DS--8-8-8-24 1.65••
G.SKILLF3-16000CL9D-4GBRH(XMP)4GB(2 x 2GB) DS--9-9-9-24 1.65••
G.SKILLF3-16000CL9D-4GBTD(XMP)4GB(2 x 2GB) DS--9-9-9-24 1.65••
G.SKILLF3-16000CL7T-6GBPS(XMP)6GB(3 x 2GB) DS--7-8-7-20 1.65•
G.SKILLF3-16000CL9T-6GBPS(XMP)6GB(3 x 2GB) DS--9-9-9-24 1.65••
GEILGU34GB2000C9DC(XMP)4GB(2 x 2GB) DS--9-9-9-28 1.65•
GEILGE38GB2000C9QC(XMP)8GB(4 x 2GB) DS--9-9-9-28 1.65••
KINGSTON KHX2000C8D3T1K3/3GX(XMP) 3GB(3 x 1GB) SS--81.65••
KINGSTON KHX2000C9D3T1FK3/6GX(XMP) 6GB(3 x 2GB) DS--9 1.65•••
KINGSTON KHX2000C9D3T1K3/6GX(XMP) 6GB(3 x 2GB) DS--9 1.65•••
OCZOCZ3P20002GK(EPP)2GB(2 x 1GB) SS--91.9•
OCZOCZ3B2000LV6GK6GB(3 x 2GB) DS--7-8-71.65•
PatriotPVS32G2000LLKN2GB(2 x 1GB) SS--9-9-9-24 2••
PatriotPVT36G2000LLK(XMP)6GB(3 x 2GB) DS--8-8-8-24 1.65•
F3-17600CL9D-4GBTDS(XMP) 4GB(2 x 2GB)
DS
--
9-9-9-24 1.65
DIMM socket support
(Optional)
1 DIMM 2 DIMM 4 DIMM
•
DIMM socket support
(Optional)
1 DIMM 2 DIMM 4 DIMM
DIMM socket support
(Optional)
1 DIMM 2 DIMM 4 DIMM
P7H55D-M EVO Motherboard Qualied Vendors Lists (QVL)
DDR3-2000MHz capability for Lynneld CPU at 2.66Ghz
DIMM socket support
VendorPart No.SizeSS/DS Chip Brand Chip NO. Timing Voltage
G.SKILL F3-16000CL9D-4GBRH(XMP) 4GB(2 x 2GB) DS--9-9-9-24 1.65••
G.SKILL F3-16000CL9D-4GBTD(XMP) 4GB(2 x 2GB) DS--9-9-9-24 1.65••
G.SKILL F3-16000CL9T-6GBPS(XMP) 6GB(3 x 2GB) DS--9-9-9-24 1.65••
GEILGE38GB2000C9QC(XMP)8GB(4 x 2GB) DS--9-9-9-28 1.65••
Gingle9CAASS37AZZ01D12GBDS--9-9-9-24 -•
2-12Chapter 2: Hardware information
(Optional)
1 DIMM 2 DIMM 4 DIMM
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