Asus P7P55D-E DELUXE User manual

Motherboard
P7P55D-E
Deluxe

ii
E5133
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, modied or altered, unless
such repair, modication of alteration is authorized in writing by ASUS; or (2) the serial number of the
product is defaced or missing.
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS
DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS,
LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE),
EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY
DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR
INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE,
AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO
RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS
MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.
Products and corporate names appearing in this manual may or may not be registered trademarks or
copyrights of their respective companies, and are used only for identication or explanation and to the
owners’ benet, without intent to infringe.

iii
Contents
Notices viii
Safety information...................................................................................................... ix
About this guide.......................................................................................................... x
P7P55D-E Deluxe specications summary ............................................................ xii
Chapter 1: Product introduction
1.1 Welcome! .................................................................................................... 1-1
1.2 Package contents....................................................................................... 1-1
1.3 Special features.......................................................................................... 1-2
1.3.1 Product highlights........................................................................ 1-2
1.3.2 ASUS Xtreme Design—Hybrid Processor .................................. 1-3
1.3.3 ASUS Xtreme Design—24 Hybrid Phase ................................... 1-3
1.3.4 ASUS Xtreme Design—Hybrid OS ............................................. 1-3
1.3.5 ASUS Exclusive Features........................................................... 1-4
Chapter 2: Hardware information
2.1 Before you proceed ................................................................................... 2-1
2.2 Motherboard overview............................................................................... 2-2
2.2.1 Motherboard layout ..................................................................... 2-2
2.2.2 Layout contents........................................................................... 2-3
2.2.3 Placement direction..................................................................... 2-4
2.2.4 Screw holes................................................................................. 2-4
2.3 Central Processing Unit (CPU) ................................................................. 2-5
2.3.1 Installing the CPU ....................................................................... 2-5
2.3.2 Installing the CPU heatsink and fan............................................ 2-8
2.3.3 Uninstalling the CPU heatsink and fan........................................ 2-9
2.4 System memory ....................................................................................... 2-10
2.4.1 Overview ................................................................................... 2-10
2.4.2 Memory congurations.............................................................. 2-11
2.4.3 Installing a DIMM ...................................................................... 2-20
2.4.4 Removing a DIMM .................................................................... 2-20
2.5 Expansion slots........................................................................................ 2-21
2.5.1 Installing an expansion card......................................................2-21
2.5.2 Conguring an expansion card ................................................. 2-21
2.5.3 Interrupt assignments................................................................ 2-22
2.5.4 PCI slots.................................................................................... 2-23
2.5.5 PCI Express 2.0 x1 slots........................................................... 2-23
2.5.6 PCI Express 2.0 x16 slots......................................................... 2-23
2.6 Onboard switches .................................................................................... 2-25

iv
Contents
2.7 Connectors ............................................................................................... 2-28
2.7.1 Rear panel connectors.............................................................. 2-28
2.7.2 Audio I/O connections............................................................... 2-29
2.7.3 Internal connectors.................................................................... 2-32
2.7.4. ASUS Q-Connector (system panel) .......................................... 2-42
2.8 Onboard LEDs .......................................................................................... 2-43
2.9 Starting up for the rst time.................................................................... 2-44
2.10 Turning off the computer......................................................................... 2-44
Chapter 3: BIOS setup
3.1 Knowing BIOS ............................................................................................ 3-1
3.2 Updating BIOS............................................................................................ 3-1
3.2.1 ASUS Update utility.....................................................................3-2
3.2.2 ASUS EZ Flash 2 utility............................................................... 3-4
3.2.3 ASUS CrashFree BIOS 3 utility................................................... 3-5
3.2.4 ASUS BIOS Updater................................................................... 3-6
3.3 BIOS setup program .................................................................................. 3-9
3.3.1 BIOS menu screen...................................................................... 3-9
3.3.2 Menu bar ..................................................................................... 3-9
3.3.3 Navigation keys......................................................................... 3-10
3.3.4 Menu items................................................................................ 3-10
3.3.5 Submenu items ......................................................................... 3-10
3.3.6 Conguration elds ................................................................... 3-10
3.3.7 Pop-up window.......................................................................... 3-10
3.3.8 Scroll bar ................................................................................... 3-10
3.3.9 General help.............................................................................. 3-10
3.4 Main menu ................................................................................................ 3-11
3.4.1 SATA 1–6 .................................................................................. 3-11
3.4.2 Storage Conguration ............................................................... 3-13
3.4.3 AHCI Conguration ................................................................... 3-13
3.4.4 System Information ................................................................... 3-14
3.5 Ai Tweaker menu...................................................................................... 3-15
3.5.1 CPU Level Up .......................................................................... 3-15
3.5.2 Ai Overclock Tuner ................................................................... 3-16
3.5.3 CPU Ratio Setting .................................................................... 3-17
3.5.4 Intel(R) SpeedStep(TM) Tech .................................................. 3-17
3.5.5 Intel(R) TurboMode Tech .......................................................... 3-17
3.5.6 Xtreme Phase Full Power Mode .............................................. 3-17
3.5.7 DRAM Frequency ..................................................................... 3-17

v
Contents
3.5.8 QPI Frequency ......................................................................... 3-18
3.5.9 ASUS/3rd Party Ui Priority ........................................................ 3-18
3.5.10 OC Tuner................................................................................... 3-18
3.5.11 Start auto tuning........................................................................ 3-18
3.5.12 DRAM Timing Control ............................................................... 3-18
3.5.13 CPU Differential Amplitude........................................................ 3-20
3.5.14 CPU Clock Skew ...................................................................... 3-20
3.5.15 CPU Voltage Mode.................................................................... 3-20
3.5.16 IMC Voltage............................................................................... 3-21
3.5.17 DRAM Voltage........................................................................... 3-21
3.5.18 CPU PLL Voltage ...................................................................... 3-21
3.5.19 PCH Voltage ............................................................................. 3-21
3.5.20 DRAM DATA REF Voltage on CHA/B ...................................... 3-22
3.5.21 DRAM CTRL REF Voltage on CHA/B ...................................... 3-22
3.5.22 Load-Line Calibration ............................................................... 3-22
3.5.23 CPU Spread Spectrum ............................................................. 3-22
3.5.24 PCIE Spread Spectrum ............................................................ 3-22
3.6 Advanced menu ....................................................................................... 3-23
3.6.1 CPU Conguration .................................................................... 3-23
3.6.2 Uncore Conguration ................................................................ 3-25
3.6.3 Onboard Devices Conguration................................................ 3-26
3.6.4 USB Conguration .................................................................... 3-27
3.6.5 PCIPnP ..................................................................................... 3-28
3.6.6 Intel VT-d .................................................................................. 3-28
3.6.7 T.Probe ..................................................................................... 3-28
3.7 Power menu.............................................................................................. 3-29
3.7.1 Suspend Mode ......................................................................... 3-29
3.7.2 Repost Video on S3 Resume.................................................... 3-29
3.7.3 ACPI 2.0 Support ...................................................................... 3-29
3.7.4 ACPI APIC Support .................................................................. 3-29
3.7.5 EuP Ready ............................................................................... 3-29
3.7.6 APM Conguration.................................................................... 3-30
3.7.7 Hardware Monitor...................................................................... 3-31
3.8 Boot menu ................................................................................................ 3-33
3.8.1 Boot Device Priority................................................................... 3-33
3.8.2 Boot Settings Conguration ...................................................... 3-34
3.8.3 Security ..................................................................................... 3-35
3.9 Tools menu ............................................................................................... 3-37

vi
Contents
3.9.1 ASUS O.C. Prole..................................................................... 3-37
3.9.2 AI NET 2.................................................................................... 3-38
3.9.3 ASUS EZ Flash 2...................................................................... 3-38
3.9.4 Express Gate ........................................................................... 3-39
3.9.5 ID LED ...................................................................................... 3-39
3.10 Exit menu .................................................................................................. 3-40
Chapter 4: Software support
4.1 Installing an operating system ................................................................. 4-1
4.2 Support DVD information.......................................................................... 4-1
4.2.1 Running the support DVD ........................................................... 4-1
4.2.2 Obtaining the software manuals.................................................. 4-2
4.3 Software information ................................................................................. 4-3
4.3.1 ASUS PC Probe II....................................................................... 4-3
4.3.2 ASUS AI Suite ............................................................................. 4-4
4.3.3 ASUS Fan Xpert..........................................................................4-5
4.3.4 ASUS EPU-6 Engine...................................................................4-6
4.3.5 ASUS Express Gate....................................................................4-7
4.3.6 ASUS T.Probe ............................................................................. 4-8
4.3.7 VIA®High Denition Audio utility ................................................. 4-9
4.3.8 Intel®Extreme Tuning Utility...................................................... 4-10
4.4 RAID congurations ................................................................................ 4-11
4.4.1 RAID denitions ........................................................................ 4-11
4.4.2 Installing Serial ATA hard disks ................................................. 4-12
4.4.3 Setting the RAID item in BIOS .................................................. 4-12
4.4.4 Intel®Matrix Storage Manager option ROM utility..................... 4-12
4.5 Creating a RAID driver disk.....................................................................4-16
4.5.1 Creating a RAID driver disk without entering the OS................ 4-16
4.5.2 Creating a RAID driver disk in Windows®.................................. 4-16
4.5.3 Installing the RAID driver during Windows®OS installation ...... 4-17
4.5.4 Using a USB oppy disk drive................................................... 4-17
Chapter 5: Multiple GPU technology support
5.1 ATI®CrossFireX™ technology .................................................................. 5-1
5.1.1 Requirements.............................................................................. 5-1
5.1.2 Before you begin......................................................................... 5-1
5.1.3 Installing two CrossFireX™ graphics cards ................................ 5-1
5.1.4 Installing the device drivers......................................................... 5-2
5.1.5 Enabling the ATI®CrossFireX™ technology ............................... 5-3

vii
Contents
5.2 NVIDIA®SLI™ technology ......................................................................... 5-4
5.2.1 Requirements.............................................................................. 5-4
5.2.2 Installing two SLI-ready graphics cards ...................................... 5-4
5.2.3 Installing the device drivers......................................................... 5-5
5.2.4 Enabling the NVIDIA®SLI™ technology ..................................... 5-5

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

ix
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 qualied service
technician or your retailer.
Operation safety
• Before installing the motherboard and adding devices on it, carefully read all the manuals
that came with the package.
• Before using the product, 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 qualied service
technician or your retailer.

x
About this guide
This user guide contains the information you need when installing and conguring the motherboard.
How this guide is organized
This guide contains the following parts:
• Chapter 1: Product introduction
This chapter describes the features of the motherboard and the new technology it
supports.
• Chapter 2: Hardware information
This chapter lists the hardware setup procedures that you have to perform when
installing system components. It includes description of the switches, jumpers, and
connectors on the motherboard.
• Chapter 3: BIOS setup
This chapter tells how to change system settings through the BIOS Setup menus.
Detailed descriptions of the BIOS parameters are also provided.
• Chapter 4: Software support
This chapter describes the contents of the support DVD that comes with the
motherboard package and the software.
• Chapter 5: Multiple GPU technology support
This chapter describes how to install and congure multiple ATI®CrossFireX™ and
NVIDIA®SLI™ graphics cards.
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.

xi
Conventions used in this guide
To ensure that you perform certain tasks properly, take note of the following symbols used
throughout this manual.
Typography
Bold text Indicates a menu or an item to select.
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.that you must press the enclosed key.
Example: <Enter> means that you must press the Enter or
Return key.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>
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.

xii
P7P55D-E Deluxe specications summary
CPU LGA1156 socket for Intel®Core™ i7 / Core™ i5 / Core™ i3
processors
Supports Intel®Turbo Boost Technology
* Refer to www.asus.com for Intel CPU support list
Chipset Intel®P55 Express Chipset
Memory 4 x DIMM, max. 16GB, DDR3 2200(O.C.)* / 1600 / 1333 /
1066 MHz, non-ECC, un-buffered memory
Dual channel memory architecture
Supports Intel® Extreme Memory Prole (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 (Qualied Vendors Lists)
Expansion Slots 2 x PCI Express 2.0 x16 slots (single at x16 or dual at x8 / x8
mode)
3 x PCI Express 2.0 x1 slots (2 at 5.0GT/s [blue]; 1 at 2.5GT/s
[gray])
2 x PCI slots
Multi-GPU Support Supports ATI®Quad-GPU CrossFireX™ Technology
Supports NVIDIA®Quad-GPU SLI™ Technology
Storage Intel®P55 Express Chipset:
- 6 x SATA 3.0 Gb/s ports
- Intel®Matrix Storage supporting SATA RAID 0,1, 5, and 10
JMicron®JMB363 SATA & PATA controller:
- 1 x Ultra DMA 133/100/66 for up to 2 PATA devices
- 1 x SATA 3.0 Gb/s port (black)
- 1 x External SATA port
Marvell®PCIe SATA 6Gb/s controller:
- 2 x SATA 6.0 Gb/s ports (gray)
LAN Dual Gigabit LAN controllers
- 2 x Realtek®8112L Gigabit LAN controller featuring AI NET2
USB NEC USB 3.0 controller:
- 2 x USB 3.0 ports (blue; at back panel)
Intel®P55 Express Chipset:
- 12 x USB 2.0 ports (6 ports at mid-board, 6 ports at back
panel)
IEEE 1394 VIA®VT6308P controller supports 2 x IEEE 1394a ports
(one at midboard; one at back panel)
Audio VIA® VT2020 10-channel High Denition Audio CODEC
- Absolute Pitch BD192/24 featuring ENVY HD
- BD Audio Layer Content Protection
- DTS Surround Sensation Ultra-PC
- Supports Jack-Detection, Multi-streaming and Front Panel
Jack-Retasking
- Coaxial / Optical S/PDIF out ports at back I/O
- ASUS Noise Filter
(continued on the next page)

xiii
(continued on the next page)
P7P55D-E Deluxe specications summary
ASUS Unique Features Unique PCIe x4 Bridge Chip for Ultra Performance:
- True USB 3.0 Support
- True SATA 6.0Gb/s Support
ASUS Xtreme Design—Hybrid Series:
ASUS Hybrid Processor—TurboV EVO
- Auto Tuning, TurboV, CPU Level Up and Turbo Key
- ASUS TurboV Remote
ASUS 24 Hybrid Phase*
- T.Probe Technology for Active Cooling
- 16+3 Phase Power Design
* 24 Hybrid Phase = 16+3 Phase x T.Probe
ASUS Hybrid OS—Express Gate
ASUS Exclusive Features:
- MemOK!
- ASUS EPU
ASUS Quiet Thermal Solution:
- ASUS Fanless Design: Heat-pipe solution
- ASUS Fanless Design: Stack Cool 3+
- ASUS Fan Xpert
ASUS EZ DIY:
- ASUS Q-Shield
- ASUS Q-Connector
- ASUS O.C. Prole
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 2
- ASUS My Logo 2
- Multi-language BIOS
ASUS Q-Design ASUS Q-LED (CPU, DRAM, VGA, Boot Device LED)
ASUS Q-Slot
ASUS Q-DIMM
ASUS Exclusive
Overclocking Features
Precision Tweaker 2:
- vCore: Adjustable CPU voltage at 0.00625V increment
- vIMC: Adjustable IMC voltage at 0.00625V increment
- vDRAM Bus: 81-step DRAM bus voltage control
- vPCH: 2-step chipset voltage control
- vCPU_PLL: 4-step reference voltage control
SFS (Stepless Frequency Selection):
- Internal Base Clock tuning from 80MHz up to 500 MHz at
1MHz increment
- PCI Express frequency tuning from 100MHz up to 200MHz
at 1MHz increment
Overclocking Protection:
- ASUS C.P.R.(CPU Parameter Recall)

xiv
*Specications are subject to change without notice.
P7P55D-E Deluxe specications summary
Back Panel I/O Ports 1 x PS/2 Keyboard port (purple)
1 x PS/2 Mouse port (green)
1 x Coaxial S/PDIF Out
1 x Optical S/PDIF Out
1 x Clear CMOS switch
1 x IEEE1394a
2 x RJ45 ports
2 x USB 3.0/2.0 ports
6 x USB 2.0/1.1 ports
1 x eSATA port
10-channel Audio I/O
Internal I/O Connectors 3 x USB connectors support additional 6 USB ports
1 x IDE connector
7 x SATA 3.0Gb/s connectors
2 x SATA 6.0Gb/s connectors (gray)
1 x CPU Fan connector
2 x Chassis Fan connectors (1 x 4-pin, 1 x 3-pin)
1 x Power Fan connector
1 x IEEE1394a connector
1 x Front panel audio connector
1 x S/PDIF Out Header
1 x CD audio in
1 x 24-pin ATX Power connector
1 x 8-pin EATX 12V Power connectors
1 x System Panel (Q-Connector)
1 x TURBO_CON header (for TurboV Remote)
1 x MemOK! button
1 x Power on switch
1 x Reset switch
BIOS Features 16 Mb Flash ROM, AMI BIOS, PnP, DMI 2.0, WfM 2.0,
SM BIOS 2.5, ACPI 2.0a
Manageability WfM 2.0, DMI 2.0, WOL by PME, WOR by PME, PXE
Support DVD Contents Drivers
ASUS Utilities
ASUS Update
Anti-virus software (OEM version)
Form Factor ATX Form Factor, 12”x 9.6” (30.5cm x 24.4cm)

ASUS P7P55D-E Deluxe 1-1
1.1 Welcome!
Thank you for buying an ASUS®P7P55D-E Deluxe motherboard!
The motherboard delivers a host of new features and latest technologies, making it another
standout in the long line of ASUS quality motherboards!
Before you start installing the motherboard, and hardware devices on it, check the items in
your package with the list below.
1.2 Package contents
Check your motherboard package for the following items.
• If any of the above items is damaged or missing, contact your retailer.
• The illustrated items above are for reference only. Actual product specications may
vary with different models.
Chapter 1: Product introduction
Chapter 1
User Manual
ASUS P7P55D-E Deluxe
motherboard User guide Support DVD
4 x Serial ATA 3.0Gb/s cables 2 x Serial ATA 6.0Gb/s cables
with 6.0Gb/s label
1 x Ultra DMA 133/
100/66 cable
1 x 2-port USB 2.0 and 1-port
eSATA module 1 x TurboV Remote 1 x ASUS SLI bridge connector
1 x ASUS Q-Shield 1 x 2-in-1 ASUS Q-Connector kit

1-2 Chapter 1: Product Introduction
Chapter 1
1.3 Special features
1.3.1 Product highlights
Intel® LGA1156 Lynneld / Clarkdale Processor Ready
This motherboard supports the latest Intel® Lynneld / 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. Intel® Lynneld / Clarkdale processor is one of the most powerful and energy
efcient CPU in the world. Refer to page 2-5 for details.
Intel®P55
The Intel®P55 Express Chipset is the latest one-chipset design to support the latest 1156
socket Intel®Core™ i7 / Core™ i5 / Core™ i3 processors. Intel P55 provides improved
performance by utilizing serial point-to-point links, allowing increased bandwidth and stability.
PCIe 2.0
Double Speed; Double Bandwidth
This motherboard supports the latest PCIe 2.0 devices for double speed and bandwidth that
enhances system performance. Refer to page 2-23 for details.
Quad-GPU SLI™ and Quad-GPU CrossFireX™ support!
Flexible Multi-GPU solutions, Your Weapon of Choice!
P7P55D-E Deluxe brings you the multi-GPU choice of either SLI™ or CrossFireX™. The
motherboard features the most powerful Intel® P55 platform to optimize PCIe allocation in
multiple GPU congurations. Expect a brand-new gaming style you’ve never experienced
before! Refer to Chapter 5 for details.
Dual-Channel DDR3 2200(O.C.) / 1600 / 1333 / 1066 support
The motherboard supports DDR3 memory that features data transfer rates of 2200(O.C.) /
1600 / 1333 / 1066 MHz to meet the higher bandwidth requirements of the latest 3D graphics,
multimedia, and Internet applications. The dual-channel DDR3 architecture enlarges the
bandwidth of your system memory to boost system performance. Refer to page 2-10 for
details.
Unique PCIe x4 Bridge Chip for Ultra Performance
True USB 3.0 Support
Experience ultra-fast data transfers at 4.8Gbps 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. Refer to page 2-28 for details.
True SATA 6Gb/s Support
Supporting next-generation Serial ATA (SATA) storage interface, this motherboard
delivers up to 6.0Gb/s data transfer rates. Additionally, get enhanced scalability, faster
data retrieval, double the bandwidth of current bus systems. Refer to page 2-34 for
details.

ASUS P7P55D-E Deluxe 1-3
Chapter 1
1.3.2 ASUS Xtreme Design—Hybrid Processor
TurboV EVO
Ultimate O.C. Processor
The ultimate O.C. processor satises every level of overclockers—from die-hard enthusiasts
to beginners. Auto tuning intelligently pushes the system to the fastest clock speeds while
maintaining stability. Turbo Key boosts performance with just one touch; while TurboV offers
more options to advanced overclockers to achieve world O.C. record. Moreover, upgrade
your CPU at no additional cost with CPU Level Up!
Auto Tuning
Auto System Level Up
Auto Tuning is an intelligent tool that automates overclocking to achieve a total system level
up. This tool also provides stability testing. Even O.C. beginners can achieve extreme yet
stable overclocking results with Auto Tuning!
TurboV Remote
Versatile, Real-time O.C. Hardware Controller
Imagine overclocking in real-time on a side controller without interrupting ongoing work and
games. With ASUS TurboV Remote, you can easily perform overclocking and operate the
Turbo Key and EPU directly. Refer to page 2-35 for details.
1.3.3 ASUS Xtreme Design—24 Hybrid Phase*
T.Probe
Leading Active Cooling Technology
The T.Probe microchip detects and balances power phase loading and temperature in real-
time. This feature optimizes the power phase functions, allowing components to run at lower
temperatures and extending their lifespan. Refer to page 3-28 and 4-8 for details.
* 24 Hybrid Phase = 16+3 Phase x T.Probe
16+3 Phase Power Design
Unprecedented Innovation with the Best Quality Component for Best Performance
The groundbreaking 16+3 phase VRM design is brought to the ASUS motherboards. 16+3
phase power design, 16-phase for vCore and extra 3-phase for Memory controller inside
CPU can provide the highest power efciency, and hence generates less heat to effectively
enhance the overclocking capability. With the high quality power components such as low
RDS (on) MOSFETs, Ferrite core chokes with lower hysteresis loss and 100% Japan-made
high quality conductive polymer capacitors, ASUS 16+3 phase VRM design also ensure
longer component life and minimum power loss.
1.3.4 ASUS Xtreme Design—Hybrid OS
Express Gate
0 to Internet in seconds!
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 3-39 and 4-7 for
details.

1-4 Chapter 1: Product Introduction
Chapter 1
1.3.5 ASUS Exclusive Features
MemOK!
Any Memory is A-OK!
Memory compatibility is among the top concerns during computer upgrades. Worry no more.
MemOK! is the fastest memory booting solution today. This remarkable memory rescue tool
requires nothing but a push of a button to patch memory issues and get your system up and
running in no time. The technology is able to determine failsafe settings that can dramatically
improve your system booting success. Refer to page 2-26 for details.
ASUS EPU
System Level Energy Saving
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, memory, chipset, hard drives and CPU cooler / system
fans), the EPU automatically provides the most appropriate power usage via intelligent
acceleration and overclocking—helping save power and money. Refer to page 4-6 for details.
ASUS Quiet Thermal Solution
ASUS Quiet Thermal solution makes system more stable and enhances the overclocking
capability.
ASUS Fanless Design—Heat-pipe solution
The Heat Pipe design effectively directs the heat generated by the vCore area to the
heatsink near the back IO ports, where it can be carried away by existing airow from
CPU fan. The purpose of the innovative heat pipe design on this motherboard is that
the groundbreaking fanless design does not have lifetime problems as a chipset fan
does. The Heat Pipe design is the most reliable fanless thermal solution to date.
DO NOT uninstall the heat-pipe by yourself. Doing so may bend the tubing and affect the
heat dissipation performance.
Up to 20ºC (36ºF) Cooler—Stack Cool 3+
Effective Fanless Heat Dissipation at 0dB
Stack Cool 3+ is a fanless cooling solution offered exclusively by ASUS. It effectively
and noiselessly transfers heat generated by the critical components to the other side
of the specially designed PCB (printed circuit board) for effective heat dissipation—
making temperatures cooler by up to 20ºC.
Fan Xpert
Active Quiet & Cool
ASUS Fan Xpert intelligently allows users to adjust both the CPU and chassis fan
speed according to different ambient temperature, which is caused by different climate
conditions in different geographic regions and system loading. Built-in variety of useful
proles offer exible controls of fan speed to achieve a quiet and cool environment.
Refer to page 4-5 for details.

ASUS P7P55D-E Deluxe 1-5
Chapter 1
ASUS Crystal Sound
This feature can enhance speech-centric applications like Skype, online game, video
conference and recording.
10-Channel Audio
Enjoy High-End 10-channel sound system on your PC!
The onboard 10-channel HD audio (High Denition Audio, previously codenamed
Azalia) CODEC enables high-quality 192KHz/24-bit audio output, jack-sensing feature,
retasking functions and multi-streaming technology that simultaneously sends different
audio streams to different destinations. This motherboard now adopts the future
standard to deliver the most vivid audio enjoyment!! Refer to page 2-29 for details.
ASUS Noise Filter
Eliminate background noise while recording
This feature detects repetitive and stationary noises like computer fans, air
conditioners, and other background noises then eliminates it in the incoming audio
stream while recording.
DTS
DTS Surround Sensation UltraPC
DTS Surround Sensation UltraPC delivers exceptional 5.1 surround experience
through the most common PC audio setups—your existing stereo speakers or
headphones. In addition to virtual surround, “Bass enhancement” provides stronger low
frequency bass sound, and “Voice clarication” provides clear human dialogue even
with loud background sound. With these technologies, you may experience a better
home-theater audio with ease.
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 Onboard Switch
With an easy press during overclocking, the exclusive onboard switches allow gamers
to effortless ne-tune the performance without having to short the pins! Refer to page
2-25 for details.
ASUS Q-Design
DIY quickly, DIY easily!
ASUS Q-Design enhances your DIY experience. All of Q-LED, Q-Slot and Q-DIMM
design speed up and simplify the DIY process!
ASUS Q-Shield
Easy and Comfortable Installations
The specially designed ASUS Q-Shield does without the usual “ngers”—making
it convenient and easy to install. With better electric conductivity, it ideally protects
your motherboard against static electricity and shields it against Electronic Magnetic
Interference (EMI).

1-6 Chapter 1: Product Introduction
Chapter 1
ASUS Q-Connector
Make connection quick and accurate!
The ASUS Q-Connector allows you to connect or disconnect chassis front panel cables
in one easy step with one complete module. This unique module eliminates the trouble
of plugging in one cable at a time, making connection quick and accurate. Refer to
page 2-42 for details.
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 ash drive before entering the OS. You can update your BIOS only in
a few clicks without preparing an additional oppy diskette or using an OS-based ash
utility. Refer to page 3-4 for details.
ASUS O.C. Prole
Conveniently restore or load multiple BIOS settings
Freely share and distribute favorite overclocking settings. The motherboard features
the ASUS O.C. Prole that allows users to conveniently store or load multiple BIOS
settings. The BIOS settings can be stored in the CMOS or a separate le, giving users
freedom to share and distribute their favorite overclocking settings. Refer to page 3-37
for details.
ASUS MyLogo2™
This feature allows you to convert your favorite photo into a 256-color boot logo for a more
colorful and vivid image on your screen.
ASUS Multi-language BIOS
The multi-language BIOS allows you to select the language of your choice from the available
options. The localized BIOS setup menu helps you congure your system easier and faster.
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.