Asus P7P55D EVO User Manual

Page 1
P7P55D EVO
Motherboard
Page 2
E4647
First Edition (V1) July 2009
Copyright © 2009 ASUSTeK COMPUTER INC. All Rights Reserved.
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.
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Contents

Contents ...................................................................................................................... iii
Notices .....................................................................................................................
Safety information ...................................................................................................... ix
About this guide .......................................................................................................... x
P7P55D EVO specications summary ....................................................................xii
Chapter 1: Product introduction
1.1 Welcome! ....................................................................................................1-1
1.2 Package contents
1.3 Special features
1.3.1 Product highlights
1.3.2 ASUS Xtreme Design—Hybrid Processor ..................................
1.3.3 ASUS Xtreme Design—Hybrid Phase ........................................
1.3.4 ASUS Xtreme Design—Hybrid OS .............................................
1.3.5 ASUS Exclusive Features ...........................................................
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 congurations ..............................................................
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 Conguring an expansion card .................................................
2.5.3 Interrupt assignments
2.5.4 PCI slots ....................................................................................
2.5.5 PCI Express 2.0 x1 slots (2.5GT/s) ...........................................
2.5.6 PCI Express 2.0 x16 slots .........................................................
....................................................................................... 1-1
.......................................................................................... 1-2
........................................................................ 1-2
..................................................................... 2-4
................................................................................. 2-4
........................................ 2-9
2-10
2-10
2-11
2-19
2-19
........................................................................................ 2-20
...................................................... 2-20
2-20
................................................................ 2-21
2-22
2-22
2-22
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1-3
1-3
1-3
1-3
2-2
2-2
2-3
2-5
2-5
2-8
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Contents
2.6 Onboard switches .................................................................................... 2-24
2.7 Connectors ...............................................................................................
2.7.1 Rear panel connectors ..............................................................
2.7.2 Audio I/O connections ...............................................................
2.7.3 Internal connectors
2.7.4. ASUS Q-Connector (system panel) ..........................................
2.8 Onboard LEDs ..........................................................................................
2.9 Starting up for the rst time ....................................................................
2.10 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
3.3 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 Conguration elds .....................................................................
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 Conguration ...............................................................
3.4.3 AHCI Conguration ...................................................................
3.4.4 System Information ...................................................................
3.5 Ai Tweaker menu ......................................................................................
3.5.1 Ai Overclock Tuner [Auto] .........................................................
3.5.2 CPU Ratio Setting [Auto]
3.5.3 Intel(R) SpeedStep(TM) Tech [Enabled] ...................................
3.5.4 DRAM Frequency [Auto] ...........................................................
3.5.5 PQI Frequency [Auto]
.................................................................... 2-31
..................................................................... 3-2
................................................... 3-5
.................................................................................. 3-7
............................................................................ 3-7
................................................................................ 3-7
........................................................... 3-13
................................................................ 3-14
2-27
2-27
2-28
2-40
2-41
2-42
2-42
3-1
3-4
3-6
3-6
3-6
3-7
3-7
3-7
3-7
3-8
3-8
3-10
3-11
3-11
3-12
3-12
3-13
3-14
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Contents
3.5.6 DRAM Timing Control ...............................................................3-14
3.5.7 Intel(R) TurboMode Tech [Enabled] ..........................................
3.5.8 Xtreme Phase Full Power Mode [Auto] .....................................
3.5.9 BCLK Frequency [XXX]
3.5.10 PCIE Frequency [XXX]
3.5.11 CPU Differential Amplitude [Auto] .............................................
3.5.12 CPU Clock Skew [Auto] ............................................................
3.5.13 CPU Voltage Mode [Offset] ......................................................
3.5.14 IMC Voltage [Auto] ...................................................................
3.5.15 DRAM Voltage [Auto] ................................................................
3.5.16 CPU PLL Voltage [Auto] ............................................................
3.5.17 PCH Voltage [Auto] ...................................................................
3.5.18 DRAM DATA REF Voltage on CHA/B [Auto] .............................
3.5.19 Load-Line Calibration [Auto]
3.5.20 CPU Spread Spectrum [Auto] ...................................................
3.5.21 PCIE Spread Spectrum [Auto] ..................................................
3.6 Advanced menu .......................................................................................
3.6.1 CPU Conguration ....................................................................
3.6.2 North Bridge Conguration
3.6.3 Onboard Devices Conguration ................................................
3.6.4 USB Conguration ....................................................................
3.6.5 PCIPnP .....................................................................................
3.6.6 Intel VT-d [Disabled] ..................................................................
3.6.7 T.Probe [Enabled]
3.7 Power menu ..............................................................................................
3.7.1 Suspend Mode [Auto]
3.7.2 Repost Video on S3 Resume [No] ............................................
3.7.3 ACPI 2.0 Support [Disabled] .....................................................
3.7.4 ACPI APIC Support [Enabled] ...................................................
3.7.5 EuP Ready [Disabled] ...............................................................
3.7.6 APM Conguration ....................................................................
3.7.7 Hardware Monitor
3.8 Boot menu ................................................................................................
3.8.1 Boot Device Priority
3.8.2 Boot Settings Conguration ......................................................
3.8.3 Security .....................................................................................
............................................................. 3-14
.............................................................. 3-14
...................................................... 3-18
........................................................ 3-21
...................................................................... 3-24
................................................................ 3-25
...................................................................... 3-27
................................................................... 3-28
3-14
3-14
3-16
3-16
3-17
3-17
3-17
3-17
3-18
3-18
3-18
3-18
3-19
3-19
3-22
3-23
3-24
3-24
3-25
3-25
3-25
3-25
3-25
3-26
3-28
3-29
3-30
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Contents
3.9 Tools menu ............................................................................................... 3-32
3.9.1 ASUS O.C. Prole .....................................................................
3.9.2 Drive Xpert Conguration ..........................................................
3.9.3 AI NET 2 ....................................................................................
3.9.4 ASUS EZ Flash 2 ......................................................................
3.9.5 Express Gate [Auto] ..................................................................
3.10 Exit menu ..................................................................................................
Chapter 4: Software support
4.1 Installing an operating system .................................................................4-1
4.2 Support DVD information ..........................................................................
4.2.1 Running the support DVD ...........................................................
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 EPU ..................................................................................
4.3.5 ASUS Express Gate
4.3.6 VIA
®
High Denition Audio utility ................................................. 4-8
.................................................................... 4-7
4.3.7 ASUS Drive Xpert .......................................................................
4.4 ASUS Unique Overclocking Utility—TurboV EVO .................................
4.4.1 Using ASUS TurboV ..................................................................
4.4.2 Using ASUS TurboV Auto Tuning Mode ....................................
4.4.3 Using ASUS Turbo Key .............................................................
4.5 RAID congurations ................................................................................
4.5.1 RAID denitions ........................................................................
4.5.2 Installing Serial ATA hard disks .................................................
4.5.3 Setting the RAID item in BIOS ..................................................
4.5.4 Intel
4.6 Creating a RAID driver disk
®
Matrix Storage Manager option ROM utility ..................... 4-14
..................................................................... 4-18
4.6.1 Creating a RAID driver disk without entering the OS ................
4.6.2 Creating a RAID driver disk in Windows
4.6.3 Installing the RAID driver during Windows
4.6.4 Using a USB oppy disk drive ...................................................
.................................................. 4-2
®
.................................. 4-18
®
OS installation ...... 4-18
3-32
3-33
3-35
3-35
3-35
3-36
4-1
4-1
4-3
4-3
4-4
4-6
4-9
4-10
4-10
4-11
4-12
4-13
4-13
4-14
4-14
4-18
4-19
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Contents
Chapter 5: Multiple GPU technology support
5.1 ATI® CrossFireX™ technology ..................................................................5-1
5.1.1 Requirements ..............................................................................
5.1.2 Before you begin .........................................................................
5.1.3 Installing two CrossFireX™ graphics cards ................................
5.1.4 Installing three CrossFireX™ graphics cards ..............................
5.1.5 Installing the device drivers .........................................................
5.1.6 Enabling the ATI
5.2 NVIDIA
®
SLI™ technology ......................................................................... 5-6
5.2.1 Requirements ..............................................................................
5.2.2 Installing two SLI-ready graphics cards ......................................
5.2.3 Installing the device drivers .........................................................
5.2.4 Enabling the NVIDIA
®
CrossFireX™ technology ...............................5-4
®
SLI™ technology ..................................... 5-7
5-1
5-1
5-2
5-3
5-4
5-6
5-6
5-7
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Page 8

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 modications 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.
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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.
The optical S/PDIF is an optional component (may or may not be included in your
motherboard) and is dened as a CLASS 1 LASER PRODUCT.
INVISIBLE LASER RADIATION, AVOID EXPOSURE TO BEAM.
Never dispose of the battery in re. It could explode and release harmful substances into
the environment.
Never dispose of the battery with your regular household waste. Take it to a hazardous
material collection point.
Never replace the battery with an incorrect battery type.
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE ABOVE BATTERY-RELATED INSTRUCTIONS.
Operation safety
Before installing the motherboard and adding devices on it, carefully read all the manuals that came with the package.
Before using the product, ensure all cables are correctly connected and the power cables are not damaged. If you detect any damage, contact your dealer immediately.
To avoid short circuits, keep paper clips, screws, and staples away from connectors, slots, sockets and circuitry.
Avoid dust, humidity, and temperature extremes. Do not place the product in any area where it may become wet.
This motherboard should only be used in environments with ambient temperatures between 5°C (41°F) and 40°C (104°F).
Place the product on a stable surface.
If you encounter technical problems with the product, contact a qualied service
technician or your retailer.
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Page 10

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.
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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>
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Page 12
P7P55D EVO specications summary
CPU LGA1156 socket for Intel® Core™ i7 / Core™ i5 Processors
Chipset Intel® P55 Express Chipset
Memory 4 x DIMM, max. 16GB, DDR3 2133(O.C.)* / 1600 / 1333 /
Expansion slots 2 x PCI Express 2.0 x16 slots (single at x16 or dual at x8 / x8 mode)
Multi-GPU support Supports NVIDIA® Quad-GPU SLI™ Technology
Storage Intel® P55 Express Chipset
LAN Dual Gigabit LAN controllers
USB 14 x USB 2.0 ports (6 ports at mid-board, 8 ports at back panel)
IEEE 1394 VIA® VT6308P controller supports 2 x IEEE 1394a ports
Audio VIA® VT1828S 8-channel High Denition Audio CODEC
Supports Intel® Turbo Boost Technology * Refer to www.asus.com for Intel CPU support list
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.
** Refer to www.asus.com or this user manual for the Memory
QVL (Qualied Vendors Lists)
1 x PCI Express 2.0 x16 slot (at x4 mode, 2.5GT/s) 2 x PCI Express 2.0 x1 slots (2.5GT/s) 2 x PCI slots
Supports ATI® Quad-GPU CrossFireX™ Technology
- 6 x SATA 3.0 Gb/s ports
- Intel® Matrix Storage Technology supports 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 External SATA 3.0 Gb/s port (SATA On-the-Go)
JMicron® JMB322 controller (Drive Xpert Technology)
- 2 x SATA 3.0 Gb/s ports (dark blue and gray)
- Supports EZ Backup and Super Speed functions
* Drive Xpert function is available only when the hard disk drives
are set as data drives.
Realtek® 8112L / 8110SC Gigabit LAN controller featuring AI NET2
(one at midboard, one at back panel)
- Absolute Pitch BD192/24
- DTS Surround Sensation UltraPC
- Supports Jack-Detection, Multi-streaming, and
Front Panel Jack-Retasking
- Coaxial / Optical S/PDIF out ports at back I/O
(continued on the next page)
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Page 13
P7P55D EVO specications summary
ASUS unique features ASUS Hybrid Processor – TurboV EVO
ASUS Q-Design ASUS Q-LED (CPU, DRAM, VGA, Boot Device LED)
ASUS exclusive overclocking features
- Auto Tuning, TurboV and Turbo Key
ASUS Hybrid Phase
- T.Probe Technology for Active Cooling
- 12+2 Phase Power Design
ASUS Hybrid OS – Express Gate
ASUS Xtreme Design
ASUS Exclusive Features
- ASUS Drive Xpert
- MemOK!
- ASUS EPU
ASUS Quiet Thermal Solutions
- ASUS Fanless Design: Heat-pipe solution
- ASUS Fanless Design: Stack Cool 3
- ASUS Fan Xpert
ASUS Crystal Sound
- ASUS Noise Filter
ASUS EZ DIY
- ASUS Q-Shield
- ASUS Q-Connector
- ASUS O.C. Prole
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 2
- ASUS MyLogo 2™
- Multi-language BIOS
ASUS Q-Slot ASUS Q-DIMM
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 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)
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P7P55D EVO specications summary
Back panel I/O ports 1 x PS/2 keyboard port (purple)
Internal I/O connectors 3 x USB connectors support additional 6 USB ports
BIOS features 16 Mb Flash ROM, AMI BIOS, PnP, DMI 2.0, WfM 2.0,
Manageability WfM 2.0, DMI 2.0, WOL by PME, WOR by PME, PXE
Support DVD contents Drivers
Form factor ATX form factor: 12 in. x 9.6 in. (30.5 cm x 24.4 cm)
*Specications are subject to change without notice.
1 x PS/2 mouse port (green) 1 x Clear CMOS button 1 x Coaxial S/PDIF Out port 1 x Optical S/PDIF Out port 1 x IEEE 1394a port 1 x External SATA port 2 x LAN (RJ-45) ports 8 x USB 2.0/1.1 ports 8-channel Audio I/O ports
1 x IDE connector 6 x SATA connectors 2 x Drive Xpert SATA connectors (dark blue and 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 COM connector Front panel audio connector 1 x S/PDIF Out header CD audio in 24-pin ATX Power connector 8-pin EATX 12V Power connector System Panel (Q-Connector) 1 x MemOK! button 1 x Power on switch 1 x Reset switch
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)
xiv
Page 15
Chapter 1
User Manual

Chapter 1: Product introduction

1.1 Welcome!

Thank you for buying an ASUS® P7P55D 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.
Chapter 1
ASUS P7P55D EVO
motherboard
4 x Serial ATA 3.0 Gb/s cables
1 x ASUS Q-Shield
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.
User guide Support DVD
1 x Ultra DMA 133/
100/66 cable
1 x ASUS SLI™ bridge
connector
1 x 2-port USB 2.0 and 1-port
eSATA module
1 x 2-in-1 ASUS Q-Connector
kit
ASUS P7P55D EVO 1-1
Page 16

1.3 Special features

1.3.1 Product highlights

Chapter 1
Intel® LGA1156 Lynneld Processor Ready
This motherboard supports the latest Intel® Lynneld processors in LGA1156 package, which has memory and PCI Express controller integrated to support 2-channel (4 DIMMs) DDR3 memory and 16 PCI Express 2.0 lanes, providing great graphics performance. Intel® Lynneld
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 processors. Intel® P55 provides improved performance by
utilizing serial point-to-point links, allowing increased bandwidth and stability.
PCIe 2.0
This motherboard supports the latest PCIe 2.0 devices for double speed and bandwidth that enhances system performance. Refer to page 2-22 for details.
Quad-GPU SLI™ and Quad-GPU CrossFireX™ support!
P7P55D EVO 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 2133(O.C.) / 1600 / 1333 / 1066 support
The motherboard supports DDR3 memory that features data transfer rates of 2133(O.C.) /
1600 / 1333 / 1066 MHz to meet the higher bandwidth requirements of the latest 3D graphics,
multimedia, and Internet applications. The dual-channel DDR3 architecture enlarges the bandwidth of your system memory to boost system performance. Refer to page 2-10 for details.
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.
1-2 Chapter 1: Product Introduction
Page 17

1.3.2 ASUS Xtreme Design—Hybrid Processor

TurboV EVO
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. Refer to page 4-10 for details.
Auto Tuning
Auto Tuning is an intelligent tool that automates overclocking to achieve a total system level up. This tool also provides stability testing. Even O.C. beginners can achieve extreme yet stable overclocking results with Auto Tuning! Refer to page 4-11 for details.

1.3.3 ASUS Xtreme Design—Hybrid Phase

T.Probe
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.
ASUS 12+2 Phase Power Design
The groundbreaking 12+2 phase VRM design is brought to the ASUS motherboards. 12+2 phase power design, 12-phase for vCore and extra 2-phase for Memory controller inside
CPU can provide the highest power 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 12+2 phase VRM design also ensure longer component life and minimum power loss.

1.3.4 ASUS Xtreme Design—Hybrid OS

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 3-35 and 4-7 for details.
Chapter 1

1.3.5 ASUS Exclusive Features

ASUS Drive Xpert
Without BIOS setups, the ASUS exclusive Drive Xpert is ideal for anyone who needs to secure data on their hard drives or enhance hard drive performances without the hassles of
complicated congurations. With Drive Xpert’s user-friendly graphical user interface, you can
easily arrange hard drive backups or enhance their hard drive transfer rates—ensuring that data is looked after every moment, every day. Refer to page 2-33, 3-33 and 4-9 for details.
ASUS P7P55D EVO 1-3
Page 18
MemOK!
Memory compatibility is among the top concerns during computer upgrades. Worry no more.
Chapter 1
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 2-25 for details.
ASUS EPU
The ASUS EPU (Energy Processing Unit) provides total system power management by detecting current PC loadings and intelligently moderating power usage for critical PC components in real-time–helping save power and money! Refer to page 4-6 for details.
ASUS Quiet Thermal Solutions
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.
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
proles offer exible controls of fan speed to achieve a quiet and cool environment.
Refer to page 4-5 for details.
DO NOT uninstall the heat-pipe by yourself. Doing so may bend the tubing and affect the heat dissipation performance.
ASUS Crystal Sound
This feature can enhance speech-centric applications like Skype, online game, video conference and recording.
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.
1-4 Chapter 1: Product Introduction
Page 19
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 with 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
2-24 for details.
ASUS Q-Design
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
ASUS Q-Shield’s special design makes it convenient and easy to install on your motherboard. With better electric conductivity, it ideally protects your motherboard against static electricity and shields it against Electronic Magnetic Interference (EMI).
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 2-40 for details.
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.
ASUS O.C. Prole
The motherboard features the ASUS O.C. Prole 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.
Refer to page 3-32 for details.
Chapter 1
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.
ASUS P7P55D EVO 1-5
Page 20
Chapter 1
1-6 Chapter 1: Product Introduction
Page 21
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 P7P55D EVO 2-1
Page 22

2.2 Motherboard overview

2.2.1 Motherboard layout

Chapter 2
Refer to
2.7 Connectors
connectors.
2-2 Chapter 2: Hardware information
for more information about rear panel connectors and internal
Page 23

2.2.2 Layout contents

Connectors/Jumpers/Slots Page
1. ATX power connectors (24-pin EATXPWR, 8-pin EATX12V)
2. LGA1156 CPU Socket
3. DDR3 DIMM slots
4. DRAM overvoltage setting switch (OV_DRAM)
5. CPU, chassis, and power fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN1, 3-pin CHA_FAN2, 3-pin PWR_FAN)
6. Serial port connector (10-1 pin COM1)
7. MemOK! switch
8. IDE connector (40-1 pin PRI_EIDE)
9. Intel
10. JMicron
11. System panel connector (20-8 pin PANEL)
12. USB connectors (10-1 pin USB910, USB1112, USB1314)
13. Reset switch
14. Power-on switch
15. IEEE 1394a port connector (10-1 pin IE1394_2)
16. Optical drive audio connector (4-pin CD)
17. Front panel audio connector (10-1 pin AAFP)
18. Digital audio connector (4-1 pin SPDIF_OUT)
®
P55 Serial ATA 3.0 Gb/s connectors (7-pin SATA1–6 [Blue]) 2-32
®
JMB322 Serial ATA RAID connectors
(7-pin SATA_E1 [gray], 7-pin SATA_E2 [dark blue])
2-38
2-5
2-10
2-26
2-36
2-35
2-25
2-31
2-33
2-39
2-34
2-24
2-24
2-35
2-34
2-37
2-37
Chapter 2
ASUS P7P55D EVO 2-3
Page 24

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 nine 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
2-4 Chapter 2: Hardware information
Page 25

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 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 P7P55D EVO 2-5
Page 26
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.
Load plate
PnP cap
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!
2-6 Chapter 2: Hardware information
Gold
triangle
mark
Alignment keys
Page 27
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 P7P55D EVO 2-7
Page 28

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®-certied 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
2-8 Chapter 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
Page 29
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.
3. Pull up two fasteners at a time in a diagonal sequence to disengage the heatsink and fan assembly from the motherboard.
B
A
B
A
Chapter 2
A
B
B
A
4. Carefully remove the heatsink and fan assembly from the motherboard.
ASUS P7P55D EVO 2-9
Page 30

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 congurations
One DIMM:
Install one memory module in slot A1 or B1 rst as a single-channel operation.
Two DIMMs (dual-channel operation):
Four DIMMs (dual-channel operation):
2-10 Chapter 2: Hardware information
Page 31
2.4.2 Memory congurations
You may install 512MB, 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 conguration. Any excess memory from the higher-sized channel is then mapped for single-channel operation.
Due to Intel spec denition, 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
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. Prole
feature in BIOS.
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 efcient memory cooling system to support a full
memory load (4 DIMMs) or overclocking condition.
ASUS P7P55D EVO 2-11
3.5 Ai Tweaker menu
for manual memory
Page 32
P7P55D EVO Motherboard Qualied Vendors Lists (QVL) DDR3-1067MHz
capability for CPU at 2.66, 2.8 and 2.93GHz
Vendor Part No. Size
CORSAIR CM3X1024-1066C7 1024MB DS N/A Heat-Sink Package 7 1.1
Crucial
Crucial CT12864BA1067.8SFD 1024MB SS MICRON D9JNL 7
Crucial CT12872BA1067.9FF 1024MB SS MICRON D9KPT(ECC) 7(1066-9-9-9-25)
Crucial CT25664BA1067.16FF 2048MB DS MICRON D9KPT 7(1066-7-7-7-20)
Crucial CT25664BA1067.16SFD 2048MB DS MICRON D9JNL 7
Crucial CT25672BA1067.18FF 2048MB DS MICRON D9KPT(ECC) 7(1066-7-7-7-20)
ELPIDA
ELPIDA EBJ11RD8BAFA-AE-E 1024MB DS ELPIDA J5308BASE-AC-E(ECC) 7
ELPIDA EBJ11UD8BAFA-AG-E 1024MB DS ELPIDA J5308BASE-AC-E 8
ELPIDA EBJ21UE8BAW0-AE-E 2048MB DS ELPIDA J1108BABG-DJ-E 7(1066-7-7-7-20)
Hynix HMT112U6AFP8C-G7N0 1024MB SS HYNIX H5TQ1G83AFPG7C 7
Hynix HYMT112U64ZNF8-G7 1024MB SS HYNIX HY5TQ1G831ZNFP-G7 7
Hynix
Chapter 2
Hynix
KINGSTON KVR1066D3N7/1G 1024MB SS ELPIDA J1108BABG-DJ-E 1066-7-7-7-20 1.5
KINGSTON KVR1066D3N7/2G 2048MB DS ELPIDA J1108BABG-DJ-E 1066-7-7-7-20 1.5
KINGSTON KVR1066D3N7/4G 4096MB DS SAMSUNG K4B2G0846B-HCF8 1066-7-7-7-20 1.5
MICRON MT8JTF12864AY-1G1D1 1024MB SS MICRON 7VD22 7
MICRON MT8JTF12864AZ-1G1F1 1024MB SS MICRON 8ZF22 D9KPV 7(1066-7-7-7-20)
MICRON MT8JTF12864AZ-1G1F1 1024MB SS MICRON D9KPT 7(1066-7-7-7-20)
MICRON MT9JSF12872AZ-1G1F1 1024MB SS MICRON D9KPT(ECC) 7(1066-9-9-9-25)
MICRON MT16JTF25664AY-1G1D1 2048MB DS MICRON 7VD22 7
MICRON MT16JTF25664AZ-1G1F1 2048MB DS MICRON 8ZF22 D9KPV 7(1066-7-7-7-20)
MICRON MT16JTF25664AZ-1G1F1 2048MB DS MICRON D9KPT 7(1066-7-7-7-20)
MICRON MT18JSF25672AZ-1G1F1 2048MB DS MICRON D9KPT(ECC) 7(1066-7-7-7-20)
SAMSUNG M378B5273BH1-CF8 4096MB DS SAMSUNG K4B2G0846B-HCF8 8(7-7-7-20) 1.5
Transcend TS256MLK64V1U 2048MB DS ELPIDA J1108BABG-AE-E 7(1066-7-7-7-20)
Asint SLY3128M8-EAE 1024MB SS Asint DDRIII1208-AE (7-7-7-20)
Asint SLZ3128M8-EAE 2048MB DS Asint DDRIII1208-AE (7-7-7-20)
WINTEC 3DU3191A-10 1024MB DS Qimonda IDSH51-03A1F1C-10F 7
SS/DSChip
CT12864BA1067.8FF
EBJ10UE8BAW0-AE-E
HMT125U6AFP8C-G7N0
HYMT125U64ZNF8-G7 2048MB DS HYNIX HY5TQ1G831ZNFP-G7 7
1024MB SS
1024MB SS
2048MB DS
Chip NO.
Brand
MICRON D9KPT
ELPIDA J1108BABG-DJ-E
HYNIX H5TQ1G83AFPG7C
Timing Lable(Bios)
7(1066-7-7-7-20)
7(1066-7-7-7-20)
7
Voltage
DIMM socket support (Optional)
A* B* C*
P7P55D EVO Motherboard Qualied Vendors Lists (QVL) DDR3-1333MHz
capability for CPU at 2.66, 2.8 and 2.93GHz
Vendor Part No. Size
A-DATA AD133301GOU 1024MB SS A-DATA AD30908C8D-15IG 1333-9-9-9-24
A-DATA AD1333002GOU 2048MB DS A-DATA AD30908C8D-15IG 1333-9-9-9-24
A-DATA AD31333E002G0U 6144MB(Kit of 3) DS N/A Heat-Sink Package 7-7-7-20(1333-9-9-9-24) 1.65-1.85 •
Apacer 78.01GC6.420 1024MB SS ELPIDA J1108BABG-DJ-E (1333-9-9-9-24)
Apacer 78.01GC6.9L0 1024MB SS Apacer AM5D5808AEWSBG 9(1333-9-9-9-24)
Apacer 78.01GC8.422 1024MB SS ELPIDA J1108BABG-DJ-E(ECC) (1333-9-9-9-24)
Apacer 78.A1GC6.421 2048MB DS ELPIDA J1108BABG-DJ-E (1333-9-9-9-24)
Apacer 78.A1GC6.9L1 2048MB DS Apacer AM5D5808AEWSBG 9(1333-9-9-9-24)
Apacer 78.A1GC8.423 2048MB DS ELPIDA J1108BABG-DJ-E(ECC) (1333-9-9-9-24)
CORSAIR TR3X3G1333C9 (Ver2.1) 3072MB(Kit of 3) SS N/A Heat-Sink Package 9-9-9-24(1333-9-9-9-24) 1.5
CORSAIR CM3X1024-1333C9DHX 1024MB DS N/A Heat-Sink Package (1333-9-9-9-24) 1.1
BoxP/N:TWIN3X2048-1333C9
CORSAIR
(CM3X1024-1333C9)Ver1.1
BoxP/N:TW3X4G1333C9DHX
CORSAIR
(CM3X2048-1333C9DHX)Ver3.2
CORSAIR TR3X6G1333C9 (Ver2.1) 6144MB(Kit of 3) DS N/A Heat-Sink Package 9-9-9-24(1333-9-9-9-24) 1.5
Crucial CT12864BA1339.8FF 1024MB SS MICRON D9KPT 9(1333-9-9-9-24)
Crucial CT12864BA1339.8SFD 1024MB SS MICRON MT8JF12864AY-1G4D1 (1333-9-9-9-24)
Crucial CT12872BA1339.9FF 1024MB SS MICRON D9KPT(ECC) 9(1333-9-9-9-24)
Crucial CT25664BA1339.16FF 2048MB DS MICRON D9KPT 9(1333-9-9-9-24)
2048MB(Kit of 2) DS N/A Heat-Sink Package 9-9-9-24(1066-7-7-7-20) 1.70
4096MB(Kit of 2) DS N/A Heat-Sink Package 9-9-9-24(1066-7-7-7-20) 1.70
SS/DSChip
Brand
Chip NO.
Timing Dimm(Bios)
2-12 Chapter 2: Hardware information
Voltage
DIMM socket support (Optional)
A* B* C*
Page 33
P7P55D EVO Motherboard Qualied Vendors Lists (QVL) DDR3-1333MHz
capability for CPU at 2.66, 2.8 and 2.93GHz (continued)
Vendor Part No. Size
Crucial CT25672BA1339.18FF 2048MB DS MICRON D9KPT(ECC) 9(1333-9-9-9-24)
Crucial BL25664BA1336.16SFB1
ELPIDA EBJ10UE8BAW0-DJ-E 1024MB SS ELPIDA J1108BABG-DJ-E 9(1333-9-9-9-24)
ELPIDA EBJ21UE8BAW0-DJ-E 2048MB DS ELPIDA J1108BABG-DJ-E 9(1333-9-9-9-24)
G.SKILL F3-10600CL7D-2GBPI 2048MB(Kit of 2) SS N/A Heat-Sink Package (1337-7-7-7-18) 1.65
G.SKILL F3-10600CL8D-2GBHK 2048MB(Kit of 2) SS N/A Heat-Sink Package (1337-8-8-8-22) 1.65
G.SKILL F3-10666CL7T-6GBPK(XMP) 2048MB DS N/A Heat-Sink Package 7-7-7-18(1333-7-7-7-18) 1.5-1.6 •
G.SKILL F3-10666CL8D-4GBHK(XMP)
G.SKILL F3-10666CL9T-6GBNQ 6144MB(Kit of 3) DS N/A Heat-Sink Package 9-9-9-24(1333-9-9-9-24) 1.5
GEIL GV34GB1333C7DC 4096MB(Kit of 2) DS N/A Heat-Sink Package 7-7-7-24(1333-8-8-8-28) 1.5
Hynix HMT112U6BFR8C-H9 1024MB SS Hynix H5TQ1G83BFR 9(1333-9-9-9-24)
Hynix HMT125U6BFR8C-H9 2048MB DS Hynix H5TQ1G83BFR 9(1333-9-9-9-24)
Hynix HMT125U6BFR8C-H9 2048MB DS Hynix H5TQ1G83BFRH9C 9(1333-9-9-9-24)
KINGMAX FLFD45F-B8EE9
KINGSTON KVR1333D3N9/1G 1024MB SS ELPIDA J1108BABG-DJ-E 9(1066-8-7-7-20) 1.5
KINGSTON KVR1333D3N9/2G 2048MB DS ELPIDA J1108BABG-DJ-E 1333-9-9-9-24 1.5
KINGSTON KVR1333D3N9/2G 2048MB DS ELPIDA J1108BABG-DJ-E 9(1066-8-7-7-20) 1.5
MICRON MT8JTF12864AY-1G4BYES 1024MB SS MICRON Z9HWR (1333-9-9-9-24)
MICRON MT8JTF12864AZ-1G4F1 1024MB SS MICRON 9FF22 D9KPT 9(1066-8-8-8-20)
MICRON MT8JTF12864AZ-1G4F1 1024MB SS MICRON D9KPT 9(1333-9-9-9-24)
MICRON MT9JSF12872AZ-1G4F1 1024MB SS MICRON D9KPT(ECC) 9(1333-9-9-9-24)
MICRON MT16JF25664AZ-1G4F1 2048MB DS MICRON D9KPT 9(1333-9-9-9-24)
MICRON MT16JTF25664AZ-1G4F1 2048MB DS MICRON 9FF22 D9KPT 9(1066-8-8-8-20)
MICRON MT18JSF25672AZ-1G4F1 2048MB DS MICRON D9KPT(ECC) 9(1333-9-9-9-24)
OCZ OCZ3RPX1333EB2GK 1024MB SS N/A Heat-Sink Package (1066-6-5-5-20)
OCZ OCZ3G1333LV3GK 3072MB(Kit of 3) SS N/A Heat-Sink Package 9-9-9(1066-7-7-7-20) 1.65
OCZ OCZ3P1333LV3GK 3072MB(Kit of 3) SS N/A Heat-Sink Package 7-7-7(1066-7-7-7-16) 1.65
OCZ OCZ3P13332GK 1024MB DS N/A Heat-Sink Package 7-7-7-20(1333-9-9-9-24)
OCZ OCZ3P13334GK 4096MB(Kit of 2) DS N/A Heat-Sink Package 7(1333-7-7-7-20) 1.8
OCZ OCZ3G1333LV6GK 6144MB(Kit of 3) DS N/A Heat-Sink Package 9-9-9(1066-7-7-7-20) 1.65
OCZ OCZ3P1333LV6GK 6144MB(Kit of 3) DS N/A Heat-Sink Package 7-7-7(1066-7-7-7-20) 1.65
OCZ OCZX1333LV6GK(XMP) 6144MB(Kit of 3) DS NA Heat-Sink Package 8-8-8(1066-7-7-7-16) 1.6
SAMSUNG M378B2873DZ1-CH9 1024MB SS SAMSUNG K4B1G0846D 9(1333-9-9-9-24)
SAMSUNG M378B2873EH1-CH9 1024MB SS SAMSUNG K4B1G0846E 1066-8-7-7-20
SAMSUNG M391B2873DZ1-CH9 1024MB SS SAMSUNG K4B1G0846D(ECC) 9(1333-9-9-9-24)
SAMSUNG M378B5673DZ1-CH9 2048MB DS SAMSUNG K4B1G0846D 9(1333-9-9-9-24)
SAMSUNG M378B5673EH1-CH9 2048MB DS SAMSUNG K4B1G0846E 1066-8-7-7-20
SAMSUNG M391B5673DZ1-CH9 2048MB DS SAMSUNG K4B1G0846D(ECC) 9(1333-9-9-9-24)
SAMSUNG M378B5273BH1-CH9 4096MB DS SAMSUNG K4B2G0846B-HCH9 9(1333-9-9-9-24)
Super Talent W1333UX2GB(XMP) 2048MB(Kit of 2) SS N/A Heat-Sink Package 8(1333-8-8-8-24) 1.8
Transcend TS128MLK64V3U 1024MB SS SAMSUNG K4B1G0846D 9(1333-9-9-9-24)
Transcend TS256MLK64V3U 2048MB DS SAMSUNG K4B1G0846D 9(1333-9-9-9-24)
Asint SLY3128M8-EDJ 1024MB SS Asint DDRIII1208-DJ (9-9-9-24)
Asint SLY3128M8-EDJE 1024MB SS ELPIDA J1108BASE-DJ-E 1066-8-8-8-20
Asint SLZ3128M8-EDJ 2048MB DS Asint DDRIII1208-DJ (9-9-9-24)
Asint SLZ3128M8-EDJE 2048MB DS ELPIDA J1108BASE-DJ-E 1066-8-8-8-20
ASUS N/A 1024MB DS N/A Heat-Sink Package (1333-9-9-9-24)
BUFFALO FSX1333D3G-1G 1024MB SS N/A Heat-Sink Package (1066-7-7-7-20)
BUFFALO FSH1333D3G-T3G(XMP) 3072MB(Kit of 3) SS N/A Heat-Sink Package 7-7-7-20(1066-8-7-7-20)
BUFFALO FSX1333D3G-2G 2048MB DS N/A Heat-Sink Package (1066-7-7-7-20)
Patriot PDC32G1333LLK 1024MB SS PATRIOT Heat-Sink Package 7(1337-7-7-7-20) 1.7
Patriot PVT33G1333ELK 3072MB(Kit of 3) SS N/A Heat-Sink Package 9-9-9-24(1066-7-7-7-20) 1.65
Patriot PVS34G1333ELK 4096MB(Kit of 2) DS N/A Heat-Sink Package 9-9-9-24(1066-7-7-7-20) 1.5
Patriot PVS34G1333LLK 4096MB(Kit of 2) DS N/A Heat-Sink Package 7-7-7-20(1066-7-7-7-20) 1.7
Patriot PVT36G1333ELK 6144MB(Kit of 3) DS N/A Heat-Sink Package 9-9-9-24(1066-7-7-7-20) 1.65
Silicon
SP001GBLTU133S02 1024MB SS S-POWER I0YT3E0 9(1333-9-9-9-24)
Power
Silicon
SP002GBLTU133S02 2048MB DS S-POWER I0YT3E0 9(1333-9-9-9-24)
Power
4096MB(Kit of 2)
4096MB(Kit of 2) DS
1024MB SS
SS/DSChip
Brand
DS NA
N/A
ELPIDA
Chip NO.
Heat-Sink Package 6-6-6-20(1333-9-9-9-24)
Heat-Sink Package 8-8-8-21(1333-7-7-7-20)
J1108BASE-DJ-E (1333-9-9-9-24)
Timing Dimm(Bios)
Voltage
1.8
1.5-1.6
DIMM socket support (Optional)
A* B* C*
Chapter 2
ASUS P7P55D EVO 2-13
Page 34
P7P55D EVO Motherboard Qualied Vendors Lists (QVL) DDR3-1600MHz
capability for CPU at 2.66GHz
Vendor Part No. Size
A-DATA AD31600E001GMU 3072MB(Kit of 3) SS N/A Heat-Sink Package 8-8-8-24(1333-9-9-9-24) 1.65-1.85 •
A-DATA
CORSAIR TR3X3G1600C8D(XMP)Ver2.1 3072MB(Kit of 3) SS N/A Heat-Sink Package 8-8-8-24(1601-8-8-8-24) 1.65
CORSAIR TR3X3G1600C8D 3072MB(Kit of 3) SS N/A Heat-Sink Package 8-8-8-24(1600-8-8-8-24) 1.65
CORSAIR TR3X3G1600C9(XMP)Ver1.1 3072MB(Kit of 3) SS N/A Heat-Sink Package 9-9-9-24(1601-9-9-9-24) 1.65
CORSAIR
CORSAIR TR3X6G1600C8D(XMP)Ver2.1 6144MB(Kit of 3) DS N/A Heat-Sink Package 8-8-8-24(1601-8-8-8-24) 1.65
CORSAIR
CORSAIR TR3X6G1600C9(XMP)Ver2.1 6144MB(Kit of 3) DS N/A Heat-Sink Package 9-9-9-24(1333-9-9-9-24) 1.65
Crucial BL12864BA1608.8SFB(XMP) 1024MB SS N/A Heat-Sink Package (1601-8-8-8-24) 1.8
G.SKILL F3-12800CL9D-2GBNQ 2048MB(Kit of 2) SS N/A Heat-Sink Package (1333-9-9-9-24) 1.6
G.SKILL F3-12800CL8T-6GBHK(XMP) 6144MB(Kit of 3) DS N/A Heat-Sink Package 8-8-8-21(1333-8-8-8-21) 1.6-1.65 •
G.SKILL F3-12800CL8T-6GBPI(XMP) 6144MB(Kit of 3) DS N/A Heat-Sink Package 8-8-8-21(1066-8-8-8-20) 1.6~1.65 •
Chapter 2
G.SKILL F3-12800CL9T-6GBNQ 6144MB(Kit of 3) DS N/A Heat-Sink Package 9-9-9-24(1601-9-9-9-24) 1.5-1.6 •
GEIL GV34GB1600C8DC 4096MB(Kit of 2) DS N/A Heat-Sink Package 8-8-8-28(1600-8-8-8-28) 1.6
KINGMAX FLGD45F-B8KG9-NAES 1024MB SS KINGMAX KFB8FNGXF-ANX-12A 9(1600-9-8-9-28) 1.5
KINGMAX FLGE85F-B8KG9-NEES 2048MB DS KINGMAX KFB8FNGXF-ANX-12A 9(1600-9-8-9-28) 1.5
KINGSTON KHX12800D3LLK3/3GX(XMP) 3072MB(Kit of 3) SS N/A Heat-Sink Package 1600-8-8-8-20 1.65
KINGSTON KHX12800D3K2/4G 4096MB(Kit of 2) DS N/A Heat-Sink Package 9(1333-9-9-9-24) 1.9
KINGSTON KHX12800D3LLK3/6GX(XMP) 6144MB(Kit of 3) DS N/A Heat-Sink Package (1066-8-8-8-20) 1.65
OCZ OCZ3P1600EB1G 1024MB SS N/A Heat-Sink Package 7-6-6-24(1333-7-7-7-20)
OCZ OCZ3G1600LV3GK 3072MB(Kit of 3) SS N/A Heat-Sink Package 8-8-8(1066-7-7-7-20) 1.65
OCZ OCZ3P1600LV3GK 3072MB(Kit of 3) SS N/A Heat-Sink Package 7-7-7(1066-7-7-7-20) 1.65
OCZ OCZ3P16004GK 4096MB(Kit of 2) DS N/A Heat-Sink Package 7-7-7(1333-7-7-7-20) 1.9
OCZ OCZ3P1600EB4GK 4096MB(Kit of 2) DS N/A Heat-Sink Package 7-7-6(1333-7-7-7-20) 1.8
OCZ OCZ3G1600LV6GK 6144MB(Kit of 3) DS N/A Heat-Sink Package 8-8-8(1066-7-7-7-16) 1.65
OCZ OCZ3X1600LV6GK(XMP) 6144MB(Kit of 3) DS N/A Heat-Sink Package 8-8-8(1066-7-7-7-16) 1.65
Cell Shock CS322271 2048MB(Kit of 2) DS N/A Heat-Sink Package 7-7-7-14(1066-7-7-7-20) 1.7-1.9 •
Mushkin 996657 4096MB(Kit of 2) DS N/A Heat-Sink Package 7-7-7-20
Mushkin 998659(XMP) 6144MB(Kit of 3) DS N/A Heat-Sink Package 9-9-9-24(1333-9-9-9-24) 1.5-1.6 •
Patriot PVT33G1600ELK 3072MB(Kit of 3) SS N/A Heat-Sink Package 9-9-9-24(1066-7-7-7-20) 1.65
Patriot PVS34G1600ELK 4096MB(Kit of 2) DS N/A Heat-Sink Package 9-9-9-24(1066-7-7-7-20) 1.8
Patriot PVS34G1600LLK(XMP) 4096MB(Kit of 2) DS N/A Heat-Sink Package 7-7-7-20(1066-7-7-7-20) 1.9
Patriot PVS34G1600LLKN 4096MB(Kit of 2) DS N/A Heat-Sink Package 7-7-7-20(1066-7-7-7-20) 2.0
Patriot PVT36G1600ELK 6144MB(Kit of 3) DS N/A Heat-Sink Package 9-9-9-24(1066-7-7-7-20) 1.65
Patriot PVT36G1600ELK 6144MB(Kit of 3) DS N/A Heat-Sink Package 9-9-9-24(1600-7-7-7-20) 1.65
PQI MFADR401PA0102(XMP) 2048MB DS SAMSUNG K4B1G08460 1066-8-8-8-20
AD31600F002GMU(XMP)
BoxP/N:TW3X4G1600C9DHXNV (CM3X2G1600C9DHXNV)Ver4.1
TR3X6G1600C8D
SS/DSChip
6144MB(Kit of 3) DS
4096MB(Kit of 2) DS N/A Heat-Sink Package (1333-9-9--9-24) 1.80
6144MB(Kit of 3) DS
Chip NO.
Brand
N/A Heat-Sink Package
N/A Heat-Sink Package
Timing Dimm(Bios)
7-7-7-20(1333-9-9-9-24)
8-8-8-24(1600-8-8-8-24)
Voltage
1.75-1.85 •
1.65
DIMM socket support (Optional)
A* B* C*
2-14 Chapter 2: Hardware information
Page 35
P7P55D EVO Motherboard Qualied Vendors Lists (QVL) DDR3-1600MHz
capability for CPU at 2.8 and 2.93GHz
Vendor Part No. Size
A-DATA AD31600E001GMU 3072MB(Kit of 3) SS N/A Heat-Sink Package 8-8-8-24(1333-9-9-9-24) 1.65-1.85 •
AD31600F002GMU(XMP)
A-DATA
CORSAIR TR3X3G1600C8D(XMP)Ver2.1 3072MB(Kit of 3) SS N/A Heat-Sink Package 8-8-8-24(1601-8-8-8-24) 1.65
CORSAIR TR3X3G1600C8D 3072MB(Kit of 3) SS N/A Heat-Sink Package 8-8-8-24(1600-8-8-8-24) 1.65
CORSAIR TR3X3G1600C9(XMP)Ver1.1 3072MB(Kit of 3) SS N/A Heat-Sink Package 9-9-9-24(1601-9-9-9-24) 1.65
CORSAIR BoxP/N:TW3X4G1600C9DHXNV
(CM3X2G1600C9DHXNV)Ver4.1
CORSAIR TR3X6G1600C8D(XMP)Ver2.1 6144MB(Kit of 3) DS N/A Heat-Sink Package 8-8-8-24(1601-8-8-8-24) 1.65
TR3X6G1600C8D
CORSAIR
CORSAIR TR3X6G1600C9(XMP)Ver2.1 6144MB(Kit of 3) DS N/A Heat-Sink Package 9-9-9-24(1333-9-9-9-24) 1.65
Crucial BL12864BA1608.8SFB(XMP) 1024MB SS N/A Heat-Sink Package (1601-8-8-8-24) 1.8
G.SKILL F3-12800CL9D-2GBNQ 2048MB(Kit of 2) SS N/A Heat-Sink Package (1333-9-9-9-24) 1.6
G.SKILL F3-12800CL8T-6GBHK(XMP) 6144MB(Kit of 3) DS N/A Heat-Sink Package 8-8-8-21(1333-8-8-8-21) 1.6-1.65 •
G.SKILL F3-12800CL8T-6GBPI(XMP) 6144MB(Kit of 3) DS N/A Heat-Sink Package 8-8-8-21(1066-8-8-8-20) 1.6~1.65 •
G.SKILL F3-12800CL9T-6GBNQ 6144MB(Kit of 3) DS N/A Heat-Sink Package 9-9-9-24(1601-9-9-9-24) 1.5-1.6 •
GEIL GV34GB1600C8DC 4096MB(Kit of 2) DS N/A Heat-Sink Package 8-8-8-28(1600-8-8-8-28) 1.6
KINGMAX FLGD45F-B8KG9-NAES 1024MB SS KINGMAX KFB8FNGXF-ANX-12A 9(1600-9-8-9-28) 1.5
KINGMAX FLGE85F-B8KG9-NEES 2048MB DS KINGMAX KFB8FNGXF-ANX-12A 9(1600-9-8-9-28) 1.5
KINGSTON KHX12800D3LLK3/3GX(XMP) 3072MB(Kit of 3) SS N/A Heat-Sink Package 1600-8-8-8-20 1.65
KINGSTON KHX12800D3K3/12GX(XMP) 12288MB(Kit of 3) DS N/A Heat-Sink Package 9(1066-9-9-9-24)
KINGSTON KHX12800D3K2/4G 4096MB(Kit of 2) DS N/A Heat-Sink Package 9(1333-9-9-9-24) 1.9
KINGSTON KHX12800D3LLK3/6GX(XMP) 6144MB(Kit of 3) DS N/A Heat-Sink Package (1066-8-8-8-20) 1.65
OCZ OCZ3P1600EB1G 1024MB SS N/A Heat-Sink Package 7-6-6-24(1333-7-7-7-20)
OCZ OCZ3G1600LV3GK 3072MB(Kit of 3) SS N/A Heat-Sink Package 8-8-8(1066-7-7-7-20) 1.65
OCZ OCZ3P1600LV3GK 3072MB(Kit of 3) SS N/A Heat-Sink Package 7-7-7(1066-7-7-7-20) 1.65
OCZ OCZ3P16004GK 4096MB(Kit of 2) DS N/A Heat-Sink Package 7-7-7(1333-7-7-7-20) 1.9
OCZ OCZ3P1600EB4GK 4096MB(Kit of 2) DS N/A Heat-Sink Package 7-7-6(1333-7-7-7-20) 1.8
OCZ OCZ3X16004GK 4096MB(Kit of 2) DS N/A Heat-Sink Package 7-7-7-20 1.9
OCZ OCZ3G1600LV6GK 6144MB(Kit of 3) DS N/A Heat-Sink Package 8-8-8(1066-7-7-7-16) 1.65
OCZ OCZ3X1600LV6GK(XMP) 6144MB(Kit of 3) DS N/A Heat-Sink Package 8-8-8(1600-8-8-8-24) 1.65
OCZ OCZ3X1600LV6GK(XMP) 6144MB(Kit of 3) DS N/A Heat-Sink Package 8-8-8(1066-7-7-7-16) 1.65
Super Talent WB160UX6GB(XMP) 6144MB(Kit of 3) DS N/A Heat-Sink Package 1333-8-8-8-24
Cell Shock CS322271 2048MB(Kit of 2) DS N/A Heat-Sink Package 7-7-7-14(1066-7-7-7-20) 1.7-1.9 •
Mushkin 996657 4096MB(Kit of 2) DS N/A Heat-Sink Package 7-7-7-20
Mushkin 998659(XMP) 6144MB(Kit of 3) DS N/A Heat-Sink Package 9-9-9-24(1333-9-9-9-24) 1.5-1.6 •
Patriot PVT33G1600ELK 3072MB(Kit of 3) SS N/A Heat-Sink Package 9-9-9-24(1066-7-7-7-20) 1.65
Patriot PVS34G1600ELK 4096MB(Kit of 2) DS N/A Heat-Sink Package 9-9-9-24(1066-7-7-7-20) 1.8
Patriot PVS34G1600LLK(XMP) 4096MB(Kit of 2) DS N/A Heat-Sink Package 7-7-7-20(1066-7-7-7-20) 1.9
Patriot PVS34G1600LLKN 4096MB(Kit of 2) DS N/A Heat-Sink Package 7-7-7-20(1066-7-7-7-20) 2.0
Patriot PVT36G1600ELK 6144MB(Kit of 3) DS N/A Heat-Sink Package 9-9-9-24(1066-7-7-7-20) 1.65
Patriot PVT36G1600ELK 6144MB(Kit of 3) DS N/A Heat-Sink Package 9-9-9-24(1600-7-7-7-20) 1.65
PQI MFADR401PA0102(XMP) 2048MB DS SAMSUNG K4B1G08460 1066-8-8-8-20
6144MB(Kit of 3) DS
4096MB(Kit of 2) DS N/A Heat-Sink Package (1333-9-9--9-24) 1.80
6144MB(Kit of 3) DS
SS/DSChip
Chip NO.
Brand
N/A Heat-Sink Package
N/A Heat-Sink Package
Timing Dimm(Bios)
7-7-7-20(1333-9-9-9-24)
8-8-8-24(1600-8-8-8-24)
Voltage
1.75-1.85 •
1.65
DIMM socket support (Optional)
A* B* C*
Chapter 2
ASUS P7P55D EVO 2-15
Page 36
P7P55D EVO Motherboard Qualied Vendors Lists (QVL) DDR3-1625MHz
capability for CPU at 2.66GHz
Vendor Part No. Size SS/DS
KINGSTON KHX13000D3LLK2/2GN(EPP) 2048MB(Kit of 2) SS N/A Heat-Sink Package 1.9
KINGSTON
KINGSTON KHX13000D3LLK2/2GXN 2048MB(Kit of 2) SS N/A Heat-Sink Package 1.9
P7P55D EVO Motherboard Qualied Vendors Lists (QVL) DDR3-1625MHz
capability for CPU at 2.8 and 2.93GHz
Vendor Part No. Size SS/DS
KINGSTON KHX13000D3LLK2/2GN(EPP) 2048MB(Kit of 2) SS N/A Heat-Sink Package 1.9
KINGSTON KHX13000D3LLK2/2GX(XMP) 2048MB(Kit of 2) SS N/A Heat-Sink Package 1.9
Chapter 2
KINGSTON KHX13000D3LLK2/2GXN 2048MB(Kit of 2) SS N/A Heat-Sink Package 1.9
P7P55D EVO Motherboard Qualied Vendors Lists (QVL) DDR3-1800MHz
capability for CPU at 2.66GHz
Vendor Part No. Size
Apacer 78.0AGCD-CDZ(XMP) 2GB(Kit of 2) SS N/A Heat-Sink Package 8-8-8-24(1800-8-8-8-24) 1.8
CORSAIR
KINGSTON KHX14400D3/1G 1GB SS N/A Heat-Sink Package 1.9
KINGSTON KHX14400D3K2/2GN(EPP) 2GB(Kit of 2) SS N/A Heat-Sink Package 1.9
KINGSTON KHX14400D3K3/3GX(XMP) 3GB(Kit of 3) SS N/A Heat-Sink Package 1800-9-9-9-27 1.65
OCZ OCZ3P18002GK 2GB(Kit of 2) SS N/A Heat-Sink Package 8
OCZ OCZ3P18004GK 4GB(Kit of 2) DS N/A Heat-Sink Package 8 1.9
Transcend TX1800KLU-2GK(XMP) 2GB(Kit of 2) SS N/A Heat-Sink Package 8
Patriot PVS32G1800LLKN(EPP) 2GB(Kit of 2) SS N/A Heat-Sink Package 8-8-8-20(1066-7-7-7-20) 1.9
KHX13000D3LLK2/2GX(XMP) 2048MB(Kit of 2)
SS/DSChip
BoxP/N:TW3X4G1800C8DF (CM3X2G1800C8D)Ver4.1
4GB(Kit of 2) DS N/A Heat-Sink Package 8-8-8-24 1.80
Chip Brand
N/A Heat-Sink Package
SS
Chip Brand
Chip NO.
Brand
Chip NO.
Chip NO.
Timing Dimm(Bios)
Timing Dimm(Bios)
Timing Lable(Bios)
Voltage
1.9
Voltage
Voltage
DIMM socket support (Optional)
A* B* C*
DIMM socket support (Optional)
A* B* C*
DIMM socket support (Optional)
A* B* C*
P7P55D EVO Motherboard Qualied Vendors Lists (QVL) DDR3-1800MHz
capability for CPU at 2.8 and 2.93GHz
DIMM socket
Vendor Part No. Size
Apacer 78.0AGCD-CDZ(XMP) 2048MB(Kit of 2) SS N/A Heat-Sink Package 8-8-8-24(1800-8-8-8-24) 1.8
BoxP/N:TW3X4G1800C8DF
CORSAIR
(CM3X2G1800C8D)Ver4.1
KINGSTON KHX14400D3/1G 1024MB SS N/A Heat-Sink Package 1.9
KINGSTON KHX14400D3K2/2GN(EPP) 2048MB(Kit of 2) SS N/A Heat-Sink Package 1.9
KHX14400D3K3/3GX(XMP)
KINGSTON
OCZ OCZ3P18002GK 2048MB(Kit of 2) SS N/A Heat-Sink Package 8
OCZ OCZ3P18004GK 4096MB(Kit of 2) DS N/A Heat-Sink Package 8 1.9
Transcend TX1800KLU-2GK(XMP) 2048MB(Kit of 2) SS N/A Heat-Sink Package 8
Patriot PVS32G1800LLKN(EPP) 2048MB(Kit of 2) SS N/A Heat-Sink Package 8-8-8-20(1066-7-7-7-20) 1.9 • •
4096MB(Kit of 2) DS N/A Heat-Sink Package 8-8-8-24 1.80
3072MB(Kit of 3) SS N/A Heat-Sink Package 1800-9-9-9-27 1.65
SS/DSChip
Brand
Chip NO.
Timing Dimm(Bios)
2-16 Chapter 2: Hardware information
Voltage
support (Optional)
A* B* C*
Page 37
P7P55D EVO Motherboard Qualied Vendors Lists (QVL) DDR3-1866MHz
capability for CPU at 2.66GHz
DIMM socket
Vendor Part No. Size
Apacer 78.0AGCQ.CBZ(XMP) 3GB(Kit of 3) SS N/A Heat-Sink Package 9-9-9-27(1066-8-8-8-20)
Crucial BL12864BE2009.8SFB3(EPP)
G.SKILL F3-16000CL7T-6GBPS(XMP) 6GB(Kit of 3) DS N/A Heat-Sink Package 7-8-7-20(1066-8-8-8-20) 1.65
G.SKILL F3-16000CL9T-6GBPS(XMP) 6GB(Kit of 3) DS N/A Heat-Sink Package 9-9-9-24(1066-8-8-8-20) 1.65
KINGSTON KHX16000D3K2/2GN(EPP) 2GB(Kit of 2) SS N/A Heat-Sink Package 2.0
KINGSTON KHX16000D3K3/3GX(XMP) 3GB(Kit of 3) SS N/A Heat-Sink Package 9(1333-9-9-9-24) 1.65
KINGSTON KHX16000D3ULT1K3/
6GX(XMP)
KINGSTON KHX16000D3T1K3/6GX(XMP)
OCZ OCZ3FXT20002GK 2GB(Kit of 2) SS N/A Heat-Sink Package 8 1.9
OCZ OCZ3P20002GK(EPP) 2GB(Kit of 2) SS N/A Heat-Sink Package 9 1.9
OCZ OCZ3P2000EB2GK 2GB(Kit of 2) SS N/A Heat-Sink Package 9-8-8(1066-8-7-7-20) 1.8
Gingle 9CAASS37AZZ01D1 2BG DS N/A Heat-Sink Package 9-9-9-24
1GB SS
6GB(Kit 0f 3) DS N/A Heat-Sink Package 8(1066-8-8-8-20) 1.65
6GB(Kit of 3) DS
SS/DSChip
Brand
N/A
N/A
Chip NO.
Heat-Sink Package 9-9-9-28(1333-9-9-9-24)
Heat-Sink Package 9(1066-8-8-8-20)
Timing Dimm(Bios)
Voltage
2
1.65
support (Optional)
A* B* C*
P7P55D EVO Motherboard Qualied Vendors Lists (QVL) DDR3-1866MHz
capability for CPU at 2.8 and 2.93GHz
Vendor Part No. Size
CORSAIR TR3X3G1866C9D(XMP) 3GB(Kit of 3) SS N/A Heat-Sink Package 9-9-9-24(1866-9-9-9-24) 1.65
CORSAIR TR3X6G1866C9D 6GB(Kit of 3) DS N/A Heat-Sink Package 9-9-9-24(1866-9-9-9-24) 1.65
KINGSTON KHX14900D3K3/3GX(XMP) 3GB SS N/A Heat-Sink Package 9(1333-9-9-9-24) 1.65
OCZ OCZ3RPR1866C9LV3GK 3GB(Kit of 3) SS N/A Heat-Sink Package 9-9-9(1066-7-7-7-20) 1.65
OCZ OCZ3RPR1866C9LV6GK 6GB(Kit of 3) DS N/A Heat-Sink Package 9-9-9(1066-7-7-7-20) 1.65
Super Talent W1866UX2GB(XMP) 2GB(Kit of 2) SS N/A Heat-Sink Package 8-8-8-24(1333-9-9-9-24)
Patriot PVS32G1866LLK(XMP) 2GB(Kit of 2) SS N/A Heat-Sink Package 8-8-8-24(1066-7-7-7-20) 1.9
Patriot PVS32G1866LLK(XMP) 2GB(Kit of 2) SS N/A Heat-Sink Package 8-8-8-24(1866-8-8-8-24) 1.9
SS/DSChip
Brand
Chip NO.
Timing Dimm(Bios)
Voltage
DIMM socket support (Optional)
A* B* C*
Chapter 2
P7P55D EVO Motherboard Qualied Vendors Lists (QVL) DDR3-2000MHz
capability for CPU at 2.66GHz
Vendor Part No. Size
Apacer 78.0AGCQ.CBZ(XMP) 3GB(Kit of 3) SS N/A Heat-Sink Package 9-9-9-27(1066-8-8-8-20)
Crucial BL12864BE2009.8SFB3(EPP) 1GB SS N/A Heat-Sink Package 9-9-9-28(1333-9-9-9-24) 2
G.SKILL F3-16000CL7T-6GBPS(XMP) 6GB(Kit of 3) DS N/A Heat-Sink Package 7-8-7-20(1066-8-8-8-20) 1.65
G.SKILL F3-16000CL9T-6GBPS(XMP) 6GB(Kit of 3) DS N/A Heat-Sink Package 9-9-9-24(1066-8-8-8-20) 1.65
KINGSTON KHX16000D3K2/2GN(EPP) 2GB(Kit of 2) SS N/A Heat-Sink Package 2.0
KINGSTON KHX16000D3K3/3GX(XMP) 3GB(Kit of 3) SS N/A Heat-Sink Package 9(1333-9-9-9-24) 1.65
KINGSTON KHX16000D3ULT1K3/6GX(XMP) 6GB(Kit 0f 3) DS N/A Heat-Sink Package 8(1066-8-8-8-20) 1.65
KINGSTON KHX16000D3T1K3/6GX(XMP) 6GB(Kit of 3) DS N/A Heat-Sink Package 9(1066-8-8-8-20) 1.65
OCZ OCZ3FXT20002GK 2GB(Kit of 2) SS N/A Heat-Sink Package 8 1.9
OCZ OCZ3P20002GK(EPP) 2GB(Kit of 2) SS N/A Heat-Sink Package 9 1.9
OCZ OCZ3P2000EB2GK 2GB(Kit of 2) SS N/A Heat-Sink Package 9-8-8(1066-8-7-7-20) 1.8
Gingle 9CAASS37AZZ01D1 2GB DS N/A Heat-Sink Package 9-9-9-24
SS/DSChip
Brand
Chip NO.
Timing Dimm(Bios)
ASUS P7P55D EVO 2-17
Voltage
DIMM socket support (Optional)
A* B* C*
Page 38
P7P55D EVO Motherboard Qualied Vendors Lists (QVL) DDR3-2000MHz
capability for CPU at 2.8 and 2.93GHz
Vendor Part No. Size
Apacer 78.0AGCQ.CBZ(XMP) 3GB(Kit of 3) SS N/A Heat-Sink Package 9-9-9-27(1066-8-8-8-20)
Crucial BL12864BE2009.8SFB3(EPP)
G.SKILL F3-16000CL7T-6GBPS(XMP) 6GB(Kit of 3) DS N/A Heat-Sink Package 7-8-7-20(1066-8-8-8-20) 1.65 • •
G.SKILL F3-16000CL9T-6GBPS(XMP) 6GB(Kit of 3) DS N/A Heat-Sink Package 9-9-9-24(1066-8-8-8-20) 1.65 • •
KINGSTON KHX16000D3K2/2GN(EPP) 2GB(Kit of 2) SS N/A Heat-Sink Package 2.0 • •
KINGSTON KHX16000D3K3/3GX(XMP) 3GB(Kit of 3) SS N/A Heat-Sink Package 9(1333-9-9-9-24) 1.65 • •
KINGSTON KHX16000D3ULT1K3/6GX(XMP) 6GB(Kit 0f 3) DS N/A Heat-Sink Package 8(1066-8-8-8-20) 1.65 • • •
KINGSTON KHX16000D3T1K3/6GX(XMP)
OCZ OCZ3FXT20002GK 2GB(Kit of 2) SS N/A Heat-Sink Package 8 1.9 • •
OCZ OCZ3P20002GK(EPP) 2GB(Kit of 2) SS N/A Heat-Sink Package 9 1.9 • •
OCZ OCZ3P2000EB2GK 2GB(Kit of 2) SS N/A Heat-Sink Package 9-8-8(1066-8-7-7-20) 1.8 • •
Gingle 9CAASS37AZZ01D1 2GB DS N/A Heat-Sink Package 9-9-9-24 • •
Patriot PVS32G2000LLKN 2GB(Kit of 2) SS N/A Heat-Sink Package 9-9-9-24(1066-7-7-7-20) 2 • •
Chapter 2
P7P55D EVO Motherboard Qualied Vendors Lists (QVL) DDR3-2133MHz
capability for CPU at 2.8 and 2.93GHz
Vendor Part No. Size
G.SKILL F3-17066CL9T-6GB-T 6GB(Kit of 3) DS N/A Heat-Sink Package 9-9-9-24(1066-8-7-7-20) 1.65
DIMM socket support
Voltage
(Optional)
A* B* C*
2
1.65
DIMM socket support (Optional)
A* B* C*
1GB SS
6GB(Kit of 3) DS
SS/DSChip
Brand
SS/DSChip
Chip NO.
Brand
Heat-Sink Package 9-9-9-28(1333-9-9-9-24)
N/A
Heat-Sink Package 9(1066-8-8-8-20)
N/A
Chip NO.
Timing Dimm(Bios)
Timing Dimm(Bios)
Voltage
Side(s): SS - Single-sided DS - Double-sided DIMM support:
A*: Supports one (1) module inserted into slot A1 or B1 as Single-channel memory conguration.
Supports two (2) modules inserted into the blue slots (A1 and B1) as one pair of
B*:
Dual-channel memory conguration.
C*: Supports four (4) modules inserted into both the blue and the black slots as two
pairs of Dual-channel memory conguration.
ASUS exclusively provides hyper DIMM support function.
Hyper DIMM support is subject to the physical characteristics of individual CPUs.
According to Intel spec denition, DDR3-1600 is supported for one DIMM per channel
only. ASUS exclusively provides two DDR3-1600 DIMM support for each memory channel.
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.
Visit the ASUS website for the latest QVL.
2-18 Chapter 2: Hardware information
Page 39

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. Press the retaining clips outward to unlock a DIMM socket.
2. Align a DIMM on the socket such that the notch on the DIMM matches the break on the socket.
A DIMM is keyed with a notch so that it ts in only one direction. DO NOT force a DIMM into
a socket to avoid damaging the DIMM.
3. Firmly insert the DIMM into the socket until the retaining clips snap back in place and the DIMM is properly seated.

2.4.4 Removing a DIMM

To remove a DIMM:
1. Simultaneously press the retaining clips outward to unlock the DIMM.
2
DIMM notch
1
Unlocked retaining clip
Chapter 2
3
Locked Retaining Clip
2
1
Support the DIMM lightly with your ngers when pressing the retaining clips. The DIMM might get damaged when it ips out with extra force.
2. Remove the DIMM from the socket.
ASUS P7P55D EVO 2-19
Page 40

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.

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).
Chapter 2
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 rmly 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, congure it by adjusting the software settings.
1. Turn on the system and change the necessary BIOS settings, if any. See 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.
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.
When using PCI cards on shared slots, ensure that the drivers support “Share IRQ” or that
the cards do not need IRQ assignments. Otherwise, conicts 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.
2-20 Chapter 2: Hardware information
Page 41

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*
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
A B C D E F G H
PCIE x16_1 shared – PCIE x16_2 shared – PCIE x16_3 shared – PCIE x1_1 shared – PCIE x1_2 shared – LAN1 (8112) shared – LAN2 (8110) shared – JMicron ATA Controller shared – SATA controller 1 shared – SATA controller 2 shared – USB 2.0 controller 1 shared USB 2.0 controller 2 shared – 1394 controller shared – HD Audio shared – PCI_1 shared PCI_2 shared
Chapter 2
ASUS P7P55D EVO 2-21
Page 42

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 specications. Refer to the gure below for the location of the slots.

2.5.5 PCI Express 2.0 x1 slots (2.5GT/s)

This motherboard supports PCI Express x1 network cards, SCSI cards and other cards that
comply with the PCI Express specications. Refer to the gure below for the location of the
slots.

2.5.6 PCI Express 2.0 x16 slots

This motherboard has three PCI Express 2.0 x16 slots that support PCI Express x16 2.0
graphic cards complying with the PCI Express specications. Refer to the gure below for the
location of the slots.
Chapter 2
PCI slot 2
PCIe 2.0 x16_3 slot (black, at x4 link, 2.5GT)
PCI slot 1
PCIe 2.0 x16_2 slot (gray, at x8 link)
PCI Express x1_2 slot
PCIe 2.0 x16_1 slot (blue, single at x16 or dual at x8 link)
2-22 Chapter 2: Hardware information
PCI Express x1_1 slot
Page 43
VGA conguration
Single VGA/PCIe card
Dual VGA/PCIe card
Triple VGA/PCIe card
In single VGA card mode, use rst the PCIe 2.0 x16_1 slot (blue) for a PCI Express
x16 graphics card to get better performance.
In CrossFireX™ or SLI™ mode, use the PCIe 2.0 x16_1 (blue) and PCIe 2.0 x16_2 (gray) slots for PCI Express x16 graphics cards to get better performance.
Use the three PCIe 2.0 x16 slots for Triple CrossFireX™ mode.
We recommend that you provide sufcient power when running CrossFireX™ or SLI™
mode. See page 2-38 for details.
Connect a chassis fan to the motherboard connector labeled CHA_FAN1/2 when using multiple graphics cards for better thermal environment. See page 2-36 for details.
PCI Express operating mode
PCIe x16_1 PCIe x16_2 PCIe x16_3
x16 (Recommend for single VGA)
x8 x8 x4
x8 x8 x4
N/A
x4 (PCIe card)
Chapter 2
ASUS P7P55D EVO 2-23
Page 44

2.6 Onboard switches

Onboard switches allow you to ne-tune performance when working on a bare or open-case
system. This is ideal for overclockers and gamers who continually change settings to enhance system performance.
1. Power-on switch
The motherboard comes with a power-on switch that allows you to power up or wake up the system. This switch also lights up when the system is plugged to a power source indicating 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 power-on switch.
Chapter 2
2. Reset switch
Press the reset switch to reboot the system.
2-24 Chapter 2: Hardware information
Page 45
3. MemOK! switch
Installing DIMMs that are incompaible with the motherboard may cause system boot failure, and the DRAM_LED near the MemOK! switch lights continuously. Press and hold the MemOK! switch until the DRAM_LED starts blinking to begin automatic memory compatibility tuning for successful boot.
Refer to section
The DRAM_LED also lights when the DIMM is not properly installed. Turn off the system and reinstall the DIMM before using the MemOK! function.
The MemOK! switch does not function under Windows
During the tuning process, the system loads and tests failsafe memory settings. It takes about 30 seconds for the system to test one set of failsafe settings. If the test fails, the system reboots and test the next set of failsafe settings. The blinking speed of the DRAM_LED increases, indicating different test processes.
Due to memory tuning requirement, the system automatically reboots when each timing set is tested. If the installed DIMMs still fail to boot after the whole tuning process, the DRAM_LED lights continuously. Replace the DIMMs with ones
recommended in the Memory QVL (Qualied Vendors Lists) in this user manual or on
the ASUS website at www.asus.com.
If you turn off the computer and replace DIMMs during the tuning process, the system continues memory tuning after turning on the computer. To stop memory tuning, turn off the computer and unplug the power cord for about 5–10 seconds.
If your system fail to boot due to BIOS overclocking, press the MemOK! switch to boot and load BIOS default settings. A messgae will appear during POST reminding you that the BIOS has been restored to its default settings.
We recommend that you download and update to the latest BIOS version from the ASUS website at www.asus.com after using the MemOK! function.
2.8 Onboard LEDs
for the exact location of the DRAM_LED.
®
OS environment.
Chapter 2
ASUS P7P55D EVO 2-25
Page 46
4. DRAM overvoltage setting switch (OV_DRAM)
This switch allows you to enable or disable the advanced DRAM overvoltage settings in BIOS. Read the following information before you change the switch settings.
Chapter 2
OV_DRAM
Default up to 2.0V
Enable OV (red) up to 2.5V
Before you change the settings for extra-high overvoltage ability, use the BIOS items
rst to adjust the desired DRAM performance. Ensure your system functions well
under the highest BIOS voltage settings before you change the setting of this switch.
According to Intel CPU spec, DIMMs voltage below 1.65V is recommended to protect the CPU.
The system may need a better cooling system (for example, a water-cooling system) to work stably under high voltage settings.
2-26 Chapter 2: Hardware information
Page 47

2.7 Connectors

2.7.1 Rear panel connectors

Chapter 2
Rear panel connectors
1. PS/2 mouse port (green) 8. USB 2.0 ports 7 and 8
2. Coaxial S/PDIF Out port 9. Optical S/PDIF Out port
3. LAN (RJ-45) port 2* 10. USB 2.0 ports 3 and 4
4. USB 2.0 ports 5 and 6 11. IEEE 1394a port
5. LAN (RJ-45) port 1* 12. External SATA port
6. PS/2 keyboard port (purple) 13. USB 2.0 ports 1 and 2
7. Clear CMOS switch 14. Audio I/O ports**
*and **: Refer to the tables on the next page for LAN port and audio port denitions.
DO NOT insert a different connector to the external SATA port.
To enable external SATA device hot-plugging, set the
Controller
to
Press the Clear CMOS switch to clear BIOS setup information only when the system hangs due to overclocking.
ASUS P7P55D EVO 2-27
item in the BIOS setting to [AHCI Mode], and then reboot the system. Refer
section 3.6.3 Onboard Devices Conguration
J-Micron eSATA/PATA
for details.
Page 48
* LAN port LED indications
Activity Link LED Speed LED
Status Description Status Description
OFF
ORANGE Linked ORANGE 100 Mbps connection
BLINKING Data activity GREEN 1 Gbps connection
** Audio 2, 4, 6, or 8-channel conguration
Port
Chapter 2
Light Blue Line In Line In Line In Line In
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

2.7.2 Audio I/O connections

Audio I/O ports
No link
Headset
2-channel
ACT/LINK
LED
OFF 10 Mbps connection
LAN port
4-channel 6-channel 8-channel
SPEED
LED
Connect to Headphone and Mic
2-28 Chapter 2: Hardware information
Page 49
Connect to Stereo Speakers
Connect to 2.1 channel Speakers
Chapter 2
Connect to 4.1 channel Speakers
ASUS P7P55D EVO 2-29
Page 50
Connect to 5.1 channel Speakers
Chapter 2
Connect to 7.1 channel Speakers
2-30 Chapter 2: Hardware information
Page 51

2.7.3 Internal connectors

1. IDE connector (40-1 pin PRI_EIDE)
The onboard IDE connector is for the Ultra DMA 133/100/66 signal cable. There are three connectors on each Ultra DMA 133/100/66 signal cable: blue, black, and gray. Connect the blue connector to the motherboard’s IDE connector, then select one of the
following modes to congure your device.
Drive jumper setting Mode of device(s) Cable connector
Single device Cable-Select or Master - Black
Black
Black or gray
Two devices
Cable-Select
Master Master
Slave Slave
Master
Slave Gray
Chapter 2
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 133/100/66 IDE devices.
If any device jumper is set as “Cable-Select”, ensure that all other device jumpers have the same setting.
ASUS P7P55D EVO 2-31
Page 52
2. Intel® P55 Serial ATA connectors (7-pin SATA 1-6)
These connectors are for the Serial ATA signal cables for Serial ATA hard disk drives and optical disc drives.
If you installed Serial ATA hard disk drives, you can create a RAID 0, 1, 5, and 10
conguration with the Intel® Matrix Storage Technology through the onboard Intel® P55
chipset.
Chapter 2
These connectors are set to Standard IDE mode by default. In Standard IDE mode, you can connect Serial ATA boot/data hard disk drives to these connectors. If you intend to create a Serial ATA RAID set using these connectors, set the
item in the BIOS to [RAID]. See section
SATA as
details.
Before creating a RAID set, refer to section bundled in the motherboard support DVD.
You must install Windows ATA hard disk drives. The Serial ATA RAID feature is available only if you are using Windows® XP SP 2 or later version.
When using hot-plug and NCQ, set the See section
2-32 Chapter 2: Hardware information
3.4.2 Storage Conguration
®
XP Service Pack 2 or later version before using Serial
3.4.2 Storage Conguration
4.5 RAID congurations
Congure SATA as
for details.
in the BIOS to [AHCI].
Congure
for
or the manual
Page 53
3. JMicron® JMB322 Serial ATA connectors (7-pin SATA_E1 [gray], SATA_E2 [dark blue])
These connectors are for the Serial ATA signal cables for Serial ATA hard disk drives. If you installed Serial ATA hard disk drives, you can create an
conguration with the Drive Xpert Technology through the onboard JMicron®
Speed
EZ Backup
JMB322 controller.
Before using the Drive Xpert function, ensure that you have back up all your data in your hard disks.
For using Drive Xpert in Windows® operating system, we recommend that you prepare three hard disks: one hard disk with operating system already installed, and two hard
disks for Drive Xpert conguration.
Before using the Drive Xpert technology, ensure that you have connected the SATA signal cables and installed SATA hard disk drives to the SATA_E1/E2 connectors.
The SATA_E1 (gray) and SATA_E2 (dark blue) ports are for SATA hard drives only. ATAPI devices and hot-plug function are not supported.
Drive Xpert is available only when the hard disk drives connected to SATA_E1 (gray) and SATA_E2 (dark blue) are set as data drives.
or a
Super
Chapter 2
Refer to
4.3.7 ASUS Drive Xpert
ASUS P7P55D EVO 2-33
for detailed application instructions.
Page 54
4. USB connectors (10-1 pin USB910; USB1112; USB1314)
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 specication that supports up to
480 Mbps connection speed.
Chapter 2
Never connect a 1394 cable to the USB connectors. Doing so will damage the motherboard!
You can connect the front panel USB cable to the ASUS Q-Connector (USB, blue) rst, and
then install the Q-Connector (USB) to the USB connector onboard if your chassis supports front panel USB ports.
5. Optical drive audio connector (4-pin CD)
These connectors allow you to receive stereo audio input from sound sources such as a CD-ROM, TV tuner, or MPEG card.
2-34 Chapter 2: Hardware information
Page 55
6. IEEE 1394a port connector (10-1 pin IE1394_2)
This connector is for an IEEE 1394a port. Connect the IEEE 1394a module cable to this connector, then install the module to a slot opening at the back of the system chassis.
Never connect a USB cable to the IEEE 1394a connector. Doing so will damage the motherboard!
The IEEE 1394a module is purchased separately.
7. 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.
Chapter 2
The COM module is purchased separately.
ASUS P7P55D EVO 2-35
Page 56
8. CPU, chassis, and power fan connectors (4-pin CPU_FAN; 4-pin CHA_FAN1; 3-pin CHA_FAN2; 3-pin PWR_FAN)
The fan connectors support cooling fans of 350 mA~2000 mA (24 W max.) or a total of 1 A–7 A (84 W max.) at +12V. 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.
Chapter 2
Do not forget to connect the fan cables to the fan connectors. Insufcient air ow inside the
system may damage the motherboard components. These are not jumpers! Do not place jumper caps on the fan connectors!
Only the CPU_FAN, CHA_FAN 1 and CHA_FAN 2 connectors support the ASUS Fan Xpert feature.
If you install two VGA cards, we recommend that you plug the rear chassis fan cable to the motherboard connector labeled CHA_FAN1 or CHA_FAN2 for better thermal environment.
2-36 Chapter 2: Hardware information
Page 57
9. Digital audio connector (4-1 pin SPDIF_OUT)
This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port. 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.
The S/PDIF module is purchased separately.
10. 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.
Chapter 2
We recommend that you connect a high-denition front panel audio module to this connector to avail of the motherboard’s high-denition audio capability.
If you want to connect a high-denition front panel audio module to this connector, set
the
Front Panel Type
AC'97 front panel audio module to this connector, set the item to [AC97]. By default, this connector is set to [HD Audio].
ASUS P7P55D EVO 2-37
item in the BIOS setup to [HD Audio]; if you want to connect an
Page 58
11. ATX power connectors (24-pin EATXPWR; 8-pin EATX12V)
These connectors are for ATX power supply plugs. The power supply plugs are
designed to t these connectors in only one orientation. Find the proper orientation and push down rmly until the connectors completely t.
Chapter 2
For a fully congured system, we recommend that you use a power supply unit (PSU) that complies with ATX 12 V Specication 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.
We recommend that you use a PSU with higher power output when conguring 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
http://support.asus.
for details.
If you want to use two or more high-end PCI Express x16 cards, use a PSU with 1000W power or above to ensure the system stability.
Coolive AP-350F OCZ OCZGXS850
AcBel PC7030 Seasonic SS-850EM
Antec SG-850 Seasonic SS-900HP
Be quiet P6-PRO-850W Seventeam ST-420BKP
Corsair CMPSU-620HX Seventeam ST-522HLP
CWT PSH650V-D Silverstone PSU ST56ZF
CWT PSH750V-D Silverstone SST-ST50EF
EnerMAX EGX1000EWL Silverstone SST-ST85F
EnerMAX EIN720AWT Snake PSH500V
EnerMAX ELT500AWT Tagan TG1100-U33
FSP FSP500-60GLN Thermaltake PUREPower-600AP
I-cuteAP-600S Thermaltake TWV500W-AP
OCZ OCZ1000PXS Thermaltake W0133RU
OCZ OCZ780MXS Zalman ZM600-HP
PSU suggested list
2-38 Chapter 2: Hardware information
Page 59
12. System panel connector (20-8 pin PANEL)
This connector supports several chassis-mounted functions.
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 ashes 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.
Chapter 2
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2.7.4. ASUS Q-Connector (system panel)

IDE_LED
POWER SW
RESET SW
IDE_LED-
IDE_LED+
PWR
Reset
Ground
Ground
Use the ASUS Q-Connector to connect/disconnect the chassis front panel cables.
To install the ASUS Q-Connector:
1. Connect the front panel cables to the ASUS Q-Connector.
Refer to the labels on the Q-Connector to
know the detailed pin denitions, and then
match them to their respective front panel cable labels.
Chapter 2
2. Install the ASUS Q-Connector to the system panel connector, ensuring the orientation matches the labels on the motherboard.
The labels on the front panel cables may vary depending on the chassis model.
3. The front panel functions are now enabled.
The gure shows the Q-Connector is properly
installed on the motherboard.
2-40 Chapter 2: Hardware information
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2.8 Onboard LEDs

POST State LEDs
POST State LEDs check key components (CPU, DRAM, VGA card, and HDD) in sequence during motherboard booting process. If an error is found , the LED next to the error device will continue lighting until the problem is solved. This user-friendly design provides an intuitional way to locate the root problem within a second.
Chapter 2
You may disable the POST State LEDs in BIOS. Refer to section
Conguration
ASUS P7P55D EVO 2-41
for details.
3.8.2 Boot Settings
Page 62
2.9 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
Chapter 2
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
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
VGA detected Quick boot set to disabled No keyboard detected
No memory detected
No VGA detected
Hardware component failure
7. At power on, hold down the <Delete> key to enter the BIOS Setup. Follow the instructions in Chapter 3.

2.10 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
2-42 Chapter 2: Hardware information
3.7 Power menu
in Chapter 3 for details.
Page 63
Chapter 3

Chapter 3: BIOS setup

3.1 Knowing BIOS

BIOS (Basic Input and Output System) stores system hardware settings such as storage
device conguration, overclocking settings, advanced power management, and boot device conguration 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 (www.asus.com) to download the latest BIOS le for this
motherboard.
The following utilities allow you to manage and update the motherboard BIOS setup program.
ASUS Update: Updates the BIOS in Windows® environment.
1.
2.
ASUS EZ Flash 2: Updates the BIOS using a USB ash drive.
3. ASUS CrashFree BIOS 3 utility: Restores the BIOS using the motherboard support
DVD or a USB ash drive when the BIOS le fails or gets corrupted.
Refer to the corresponding sections for details on these utilities.
Save a copy of the original motherboard BIOS le to a USB ash disk in case you need
to restore the BIOS in the future. Copy the original motherboard BIOS using the ASUS Update utility.
ASUS P7P55D EVO 3-1
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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 le
Download the latest BIOS le from the Internet
Update the BIOS from an updated BIOS le
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.
Installing ASUS Update
To install ASUS Update:
1. Place the support DVD in the optical drive.
2. From the
3. The ASUS Update utility is copied to your system.
Updating the BIOS through the Internet
Chapter 3
To update the BIOS through the Internet:
1. From the Windows® desktop, click
Start > Programs > ASUS > ASUSUpdate > ASUSUpdate. The
ASUS Update main window appears.
ASUS Update requires an Internet connection either through a network or an Internet Service Provider (ISP).
Main menu, click the Utilities tab, then click Install ASUS Update VX.XX.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
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3. Select the ASUS FTP site nearest
you to avoid network trafc, 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 le:
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 le from the Open
window, then click Open.
4. Follow the onscreen instructions to complete the update process.
P7P55EVO.ROM
Chapter 3
P7P55EVO
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.
ASUS P7P55D EVO 3-3
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3.2.2 ASUS EZ Flash 2 utility

The ASUS EZ Flash 2 feature allows you to update the BIOS without having to use a
bootable oppy disk or 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 ash disk that contains the latest BIOS le to the USB port, and then
launch EZ Flash 2 in any of these two ways:
Press <Alt> + <F2> during POST to display the following.
Enter the BIOS setup program. Go to the press <Enter> to enable it.
ASUSTek EZ Flash 2 BIOS ROM Utility V3.38
FLASH TYPE: MXIC 25L1605A
Current ROM
BOARD: P7P55D EVO VER: 0105 DATE: 06/17/2009
PATH: A:\
A:
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. Press <Tab> to switch between drives until the correct BIOS le is found. When the correct BIOS le is found, EZ Flash 2 performs the BIOS update process and
automatically reboots the system when done.
This function can support devices such as a USB ash disk with FAT 32/16 format and
single partition only.
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. See section 3.10 Exit Menu for details.
3-4 Chapter 3: BIOS setup
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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 le when it fails or gets corrupted during the updating process. You can restore a corrupted BIOS le using the motherboard support DVD or a USB ash drive that contains the BIOS le.
The BIOS le in the motherboard support DVD may be older than the BIOS le published on the ASUS ofcial website. If you want to use the newer BIOS le, download the le at support.asus.com and save it to a USB ash 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 ash drive containing the BIOS le to the USB port.
3. The utility automatically checks the devices for the BIOS le. When found, the utility reads the BIOS le and starts ashing the corrupted BIOS le.
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 updating the BIOS! Doing so can cause system boot failure!
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3.3 BIOS setup program

A BIOS Setup program is provided for BIOS item modication. 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 rst 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 2.7.1 Rear panel connectors for information on how to erase the RTC RAM.

3.3.1 BIOS menu screen

Menu items
Main Ai Tweaker Advanced Power Boot Tools Exit
System Time [13:51:25] System Date [Thu 07/09/2009] Language [English]
SATA1 [HDT722516DLA380]
Chapter 3
SATA2 [Not Detected] SATA3 [ATAPI DVD DH1] SATA4 [Not Detected] SATA5 [Not Detected] SATA6 [Not Detected]
Storage Conguration System Information

3.3.2 Menu bar

The menu bar on top of the screen has the following main items:
Main For changing the basic system conguration
Ai Tweaker For changing the overclocking settings
Advanced For changing the advanced system settings
Power For changing the advanced power management (APM) conguration
Boot For changing the system boot conguration
Tools For conguring options for special functions
Exit For selecting the exit options and loading default settings
Menu bar
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
Submenu items
Conguration elds
BIOS SETUP UTILITY
General help
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
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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 specic items for that menu. For example,
selecting Main shows the Main menu items.
The other items (Ai Tweaker, Advanced, Power, Boot, Tools, 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 item has a submenu. To display the submenu, select the item and press <Enter>.
3.3.6 Conguration elds
These elds show the values for the menu items. If an item is user-congurable, you can change the value of the eld opposite the item. You cannot select an item that is not user-congurable.
A congurable eld is enclosed in brackets, and is highlighted when selected. To change the value of a eld, select it and press <Enter> to display a list of options. Refer to 3.3.7 Pop-up
window.

3.3.7 Pop-up window

Select a menu item and press <Enter> to
Main Ai Tweaker Advanced Power Boot Tools Exit
display a pop-up window with the conguration
options for that item.

3.3.8 Scroll bar

A scroll bar appears on the right side of a menu screen when there are items that do not
t on the screen. Press the Up/Down arrow
keys or <Page Up> / <Page Down> keys to display the other items on the screen.
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.
BIOS SETUP UTILITY
Disabled
Enabled
Pop-up window
Scroll bar
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
Chapter 3

3.3.9 General help

At the top right corner of the menu screen is a brief description of the selected item.
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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. Select an item and press <Enter> to display the submenu.
Refer to section 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 [Thu 07/09/2009] 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

3.4.1 SATA 1-6

While entering Setup, the BIOS automatically detects the presence of SATA devices. There
Chapter 3
is a separate submenu for each SATA device. Select a device item and 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-6 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]
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
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
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
The BIOS automatically detects the values opposite the dimmed items (Device, Vendor, Size,
LBA Mode, Block Mode, PIO Mode, Async DMA, Ultra DMA, and SMART Monitoring). These values are not user-congurable. These items show N/A if no SATA device is installed in the system.
3-8 Chapter 3: BIOS setup
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Type [Auto]
Allows you to select the type of device installed.
[Not Installed] Select this option if no device is installed.
[Auto] Allows automatic selection of the appropriate device type.
[CDROM] Select this option if you are specically conguring a CD-ROM drive.
[ARMD] Select [ARMD] (ATAPI Removable Media Device) if your device is either a
ZIP, LS-120, or MO drive.
This item appears in SATA1-4 only.
LBA/Large Mode [Auto]
[Auto] Select [Auto] to enable the LBA mode (Logical Block Addressing mode)
[Disabled] Disables this function.
if the device supports this mode, and if the device was not previously formatted with LBA mode disabled.
Block (Multi-Sector Transfer) M [Auto]
[Auto] When set to [Auto], the data transfer from and to the device occurs in
[Disabled] When set to [Disabled], the data transfer from and to the device occurs one
multiple sectors at a time if the device supports multi-sector transfer feature.
sector at a time.
PIO Mode [Auto]
[Auto] Allows automatic selection of the PIO (Programmed input/output) modes,
[0] [1] [2] [3] [4] Sets the PIO mode to Mode 0, 1, 2, 3, or 4.
which correspond to different data transfer rates.
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,
and Reporting Technology).
[Enabled] Enables the S.M.A.R.T feature.
[Disabled] Disables the S.M.A.R.T feature.
32Bit Data Transfer [Enabled]
[Enabled] Sets the controller to combine two 16-bit reads from the hard disk into
a single 32-bit double word transfer to the processor. This makes more
efcient use of the PCI bus as fewer transactions are needed for the
transfer of a particular amount of data.
[Disabled] Disables this function.
ASUS P7P55D EVO 3-9
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3.4.2 Storage Conguration
The Storage Conguration menu allows you to congure your storage devices. Select an item
then press <Enter> to display the submenu.
Main
Storage Conguration
SATA Conguration [Enhanced] Congure SATA as [IDE]
Hard Disk Write Protect [Disabled] IDE Detect Time Out (Sec) [35]
SATA Conguration [Enhanced]
Conguration options: [Disabled] [Compatible] [Enhanced]
Configure SATA as [IDE]
Allows you to set the SATA conguration. This item appears only when you set the
SATA Conguration item to [Enhanced] or [Compatible].
[IDE] Set to [IDE] when you want to use the Serial ATA hard disk drives as
[RAID] Set to [RAID] when you want to create a RAID conguration from the SATA
[AHCI] Set to [AHCI] when you want the SATA hard disk drives to use the AHCI
Chapter 3
Hard Disk Write Protect [Disabled]
[Enabled] Enables device write protection. This function will be effective only if the
[Disabled] Disables this function.
IDE Detect Time Out (Sec) [35]
Selects the time out value for detecting ATA/ATAPI devices from the following options: [0] [5] [10] [15] [20] [25] [30] [35]
BIOS SETUP UTILITY
Parallel ATA physical storage devices.
hard disk drives.
(Advanced Host Controller Interface). The AHCI allows the onboard storage driver to enable advanced Serial ATA features that increases storage performance on random workloads by allowing the drive to
internally optimize the order of commands.
device is accessed through BIOS.
3-10 Chapter 3: BIOS setup
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3.4.3 AHCI Conguration
This menu is the section for AHCI conguration. It appears only when you set the item
Congure SATA as from the submenu of SATA Conguration to [AHCI].
Main
AHCI Settings
SATA Port1 [Not Detected] SATA Port2 [Not Detected] SATA Port3 [Not Detected] SATA Port4 [Not Detected] SATA Port5 [Not Detected] SATA Port6 [Not Detected]
SATA Port1–6 [XXXX]
Displays the status of auto-detection of SATA devices.
SATA Port1–6 [Auto]
[Auto] Allows automatic selection of the device type connected to the
[Not Installed] Selects this option if no SATA devices are installed.
SMART Monitoring [Enabled]
S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) is a monitor system. When read/write of your hard disk errors occur, this feature allows the hard disk to report warning messages during the POST.
[Enabled] Enables the SMART monitoring feature.
[Disabled] Disables the SMART monitoring feature.
system.
BIOS SETUP UTILITY

3.4.4 System Information

This menu gives you an overview of the general system specications. The BIOS automatically detects the BIOS information, CPU specication, and system memory in this menu.
Main
BIOS Information
BIOS Version : 0166 BIOS Build Date : 07/08/09 EC BIOS Version : MBEC-0024
Processor
Type : Genuine Intel(R) CPU @ 2.13GHz Speed : 2139MHz
System Memory
Usable Size : 1016MB
ASUS P7P55D EVO 3-11
BIOS SETUP UTILITY
Chapter 3
Page 74

3.5 Ai Tweaker menu

The Ai Tweaker menu items allow you to congure overclocking-related items.
Be cautious when changing the settings of the Ai Tweaker menu items. Incorrect eld
values can cause the system to malfunction.
The conguration 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] PQI 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]
Current CPU Core Voltage [ 1.048V]
IMC Voltage [Auto]
Current IMC Voltage [ 1.109V]
Scroll down to display the following items:
DRAM Voltage [Auto]
Current DRAM Voltage [ 1.500V]
CPU PLL Voltage [Auto]
Current CPU PLL Voltage [ 1.800V]
Chapter 3
PCH Voltage [Auto]
Current PCH Voltage [ 1.040V]
DRAM DATA REF Voltage on CHA [Auto] DRAM DATA REF Voltage on CHB [Auto]
***********************************************
Load-Line Calibration [Auto] CPU Spread Spectrum [Auto] PCIE Spread Spectrum [Auto]

3.5.1 Ai Overclock Tuner [Auto]

Allows you to select the CPU overclocking options to achieve the desired CPU internal
frequency. Select any of these preset overclocking conguration options:
BIOS SETUP UTILITY
Press ENTER to run the utility to Tuner BCLK.
←→ Select Screen ↑↓ Select Item
+- Change Option F1 General Help F10 Save and Exit ESC Exit
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
←→ Select Screen ↑↓ Select Item
+- Change Option F1 General Help F10 Save and Exit ESC Exit
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
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. If you install memory modules supporting the eXtreme Memory Prole
(X.M.P.) Technology, choose this item to set the proles supported by your memory modules for optimizing the system performance.
3-12 Chapter 3: BIOS setup
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The conguration options for the following sub-items vary depending on the DIMMs you
install on the motherboard.
DRAM O.C. Prole [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. prole, which applies different settings to DRAM frequency, DRAM timing and DRAM voltage. Conguration options: [DDR3-1600MHz] [DDR3­1800MHz] [DDR3-1866MHz] [DDR3-2000MHz] [DDR3-2133MHz]
DRAM Frequency (MHz)
1333 Auto Auto Auto
1600 D.O.C.P. Auto Auto
Above 1600 D.O.C.P. D.O.C.P. D.O.C.P.
When using DIMMs with a frequncy higher than the Intel
Adjust BCLK frequency to obtain a better performance after applying the D.O.C.P
CPU Frequency (GHz)
2.66 2.8 2.93
®
exclusive DRAM O.C. Prole function to overclock the DRAM.
function.
CPU spec, use this ASUS
eXtreme Memory Prole [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.
[Disabled] You are not allowed to select the memory prole.
[High Performance] Allows your memory to work in high performance.
[High Frequency] Allows your memory to work in 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 set the ratio between the CPU Core Clock and the BCLK Frequency. Use <+> and <-> keys to adjust the ratio. The valid value ranges vary according to your CPU model.
Chapter 3

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

[Enabled] The CPU speed is controlled by the operating system.
[Disabled] The CPU runs at its default speed.
ASUS P7P55D EVO 3-13
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3.5.4 Intel(R) TurboMode Tech [Enabled]

[Enabled] Allows processor cores to run faster than marked frequency in specic
[Disabled] Disables this function.

3.5.5 Xtreme Phase Full Power Mode [Auto]

[Auto] Automatic conguration.
[Enabled] Enables Full Power Mode to ensure the best CPU overclocking performance.

3.5.6 BCLK Frequency [XXX]

Allows you to adjust the CPU operating frequency to enhance the system performance. Use the <+> and <-> keys to adjust the value. You can also key in the desired value using the numeric keypad. The values range from 80 to 500.

3.5.7 PCIE Frequency [XXX]

Allows you to set the PCI Express frequency. Use the <+> and <-> keys to adjust the PCIE frequency. You can also key in the desired value using the numeric keypad. The values range from 100 to 200.

3.5.8 DRAM Frequency [Auto]

Chapter 3
Allows you to set the DDR3 operating frequency. The conguration options vary with the
BCLK Frequency item settings.
condition.
The following two items appear only when you set the Ai Overclock Tuner item to [Manual], [D.O.C.P.] or [X.M.P.].
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 3.5.3 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.

3.5.9 PQI Frequency [Auto]

Allows you to set the PQI frequency.

3.5.10 DRAM Timing Control

The items in this menu allow you to set the DRAM timing control features.
The conguration options for some of the following items vary depending on the DIMMs
you install on the motherboard.
3-14 Chapter 3: BIOS setup
Page 77
1st Information: 6-6-6-15-4-36-6-5-16
The values vary depending on your settings of the following sub-items:
DRAM CAS# Latency [Auto]
Conguration options: [Auto] [3 DRAM Clock] [4 DRAM Clock] – [10 DRAM Clock] [11
DRAM Clock]
DRAM RAS# to CAS# Delay [Auto]
Conguration options: [Auto] [3 DRAM Clock] [4 DRAM Clock] – [9 DRAM Clock] [10
DRAM Clock]
DRAM RAS# PRE Time [Auto]
Conguration options: [Auto] [3 DRAM Clock] [4 DRAM Clock] – [9 DRAM Clock] [10
DRAM Clock]
DRAM RAS# ACT Time [Auto]
Conguration options: [Auto] [3 DRAM Clock] [4 DRAM Clock] – [30 DRAM Clock] [31
DRAM Clock]
DRAM RAS# to RAS# Delay [Auto]
Conguration options: [Auto] [1 DRAM Clock] – [7 DRAM Clock]
DRAM REF Cycle Time [Auto]
Conguration options: [Auto] [30 DRAM Clock] [36 DRAM Clock] [48 DRAM Clock] [60 DRAM Clock] [72 DRAM Clock] [82 DRAM Clock] [88 DRAM Clock] [90 DRAM Clock] [100 DRAM Clock] [110 DRAM Clock]
DRAM WRITE Recovery Time [Auto]
Conguration options: [Auto] [1 DRAM Clock] – [15 DRAM Clock]
DRAM READ to PRE Time [Auto]
Conguration options: [Auto] [1 DRAM Clock] – [15 DRAM Clock]
DRAM FOUR ACT WIN Time [Auto]
Conguration options: [Auto] [1 DRAM Clock] – [63 DRAM Clock]
2nd Information: 1N-49-52
The values vary depending on your settings of the following sub-items:
DRAM Timing Mode [Auto]
Conguration options: [Auto] [1N] [2N] [3N]
DRAM Round Trip Latency on CHA/B [Auto]
[Auto] [Advance 15 Clock]–[Advance 1 Clock] [Normal] [Delay 1 Clock] [Delay 15 Clock]
3rd Information: 6-6-13-9-9-9-7-6-4-7-7-4
The values vary depending on your settings of the following sub-items:
DRAM WRITE to READ Delay(DD) [Auto]
Conguration options: [Auto] [1 DRAM Clock] – [8 DRAM Clock]
ASUS P7P55D EVO 3-15
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Page 78
DRAM WRITE to READ Delay(DR) [Auto]
Conguration options: [Auto] [1 DRAM Clock] – [8 DRAM Clock]
DRAM WRITE to READ Delay(SR) [Auto]
Conguration options: [Auto] [10 DRAM Clock] – [22 DRAM Clock]
DRAM READ to WRITE Delay(DD) [Auto]
Conguration options: [Auto] [2 DRAM Clock] – [14 DRAM Clock]
DRAM READ to WRITE Delay(DR) [Auto]
Conguration options: [Auto] [2 DRAM Clock] – [14 DRAM Clock]
DRAM READ to WRITE Delay(SR) [Auto]
Conguration options: [Auto] [2 DRAM Clock] – [14 DRAM Clock]
DRAM READ to READ Delay(DD) [Auto]
Conguration options: [Auto] [2 DRAM Clock] – [9 DRAM Clock]
DRAM READ to READ Delay(DR) [Auto]
Conguration options: [Auto] [2 DRAM Clock] – [9 DRAM Clock]
DRAM READ to READ Delay(SR) [Auto]
Conguration options: [Auto] [4 DRAM Clock] [6 DRAM Clock]
DRAM WRITE to WRITE Delay(DD) [Auto]
Conguration options: [Auto] [2 DRAM Clock] – [9 DRAM Clock]
DRAM WRITE to WRITE Delay(DR) [Auto]
Conguration options: [Auto] [2 DRAM Clock] – [9 DRAM Clock]
Chapter 3
DRAM WRITE to WRITE Delay(SR) [Auto]
Conguration options: [Auto] [4 DRAM Clock] [6 DRAM Clock]

3.5.11 CPU Differential Amplitude [Auto]

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

3.5.12 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.
Conguration 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.
3-16 Chapter 3: BIOS setup
Page 79

3.5.13 CPU Voltage Mode [Offset]

Allows you to set the CPU Voltage Mode. Different sub-items appear according to the CPU Voltage Mode item setting. Conguration 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.
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 whne you set the CPU Voltage Mode item to [Manual] and allows you
to set a xed CPU voltage. The values range from 0.85V to 1.7V 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.

3.5.14 IMC Voltage [Auto]

Allows you to set the CPU Integrated Memory Controller voltage. The values range from 1.1V to 1.7V with a 0.00625V interval.

3.5.15 DRAM Voltage [Auto]

Allows you to set the DRAM voltage. The values range from 1.50V to 2.5V* with a 0.0125V interval.
The value [2.5V] of the DRAM Voltage item is supported only if the OV_DRAM switch
is enabled. Otherwise the maximum voltage supported is [2.0V]. This item can be
automatically optimized if you install a XMP DIMM. Refer to 4. DRAM overvoltage setting switch on page 2-26 for details.
According to Intel CPU spec, DIMMs with voltage requirement over 1.65V may damage the CPU permanently. We recommend you install the DIMMs with the voltage requirement below 1.65V.
Chapter 3

3.5.16 CPU PLL Voltage [Auto]

Allows you to set the CPU PLL voltage. The values range from 1.8V to 2.1V with a 0.1V interval.
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3.5.17 PCH Voltage [Auto]

Allows you to set the Platform Controller Hub voltage. The values range from 1.05V to 1.15V with a 0.10V interval.
The values of the IMC Voltage, DRAM Voltage, and CPU PLL Voltage items are
labeled in different color, indicating the risk levels of high voltage settings. Refer to the table below for details.
The system may need better cooling system to work stably under high voltage settings.
Blue Yellow Purple Red
IMC Voltage
DRAM Voltage
DRAM Voltage (OV DRAM Enabled)
CPU PLL Voltage 1.80V–1.90V 2.00V–2.10V N/A N/A
1.10000V–
1.16875V
1.5000V–
1.5625V
1.5000V–
1.5625V
1.17500V–
1.22500V
1.5750V–
1.6250V
1.5750V–
1.6250V
1.23125V–
1.30000V
1.6375V–
1.6875V
1.6375V–
1.6875V
1.30625V–
1.70000V
1.7000V–
2.0000V
1.7000V–
2.5000V

3.5.18 DRAM DATA REF Voltage on CHA/B [Auto]

Allows you to set the DRAM DATA Reference Voltage on Channel A/B/C. The values range from 0.395x to 0.630x with a 0.005x interval. Different ratio might enhance DRAM overclocking ability.
Chapter 3

3.5.19 Load-Line Calibration [Auto]

[Auto] BIOS automatically adjusts the voltage.
[Disabled] Follows the Intel specications.
[Enabled] Improves the CPU VDroop directly.

3.5.20 CPU Spread Spectrum [Auto]

[Auto] Automatic conguration.
[Disabled] Enhances the BCLK overclocking ability.
[Enabled] Sets to [Enabled] for EMI control.

3.5.21 PCIE Spread Spectrum [Auto]

[Auto] Automatic conguration.
[Disabled] Enhances the PCIE overclocking ability.
[Enabled] Sets to [Enabled] for EMI control.
3-18 Chapter 3: BIOS setup
Page 81

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 eld values
can cause the system to malfunction.
Main Ai Tweaker Advanced Power Boot Tools Exit
CPU Conguration North Bridge Conguration Onboard Devices Conguration USB Conguration
PCIPnP
Intel VT-d [Disabled] T.Probe [Enabled]
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:Genuine Intel(R) CPU Frequency :2.13GHz BCLK Speed :133MHz Cache L1 :128 KB Cache L2 :1024 KB Cache L3 :8192 KB Ratio Status:Unlocked (Min:09, Max:16) Ratio Actual Value:16
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] CPU TM function [Enabled]
BIOS SETUP UTILITY
Sets the ratio between CPU Core Clock and the FSB 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
Chapter 3
Scroll down to display the following items:
Execute-Disable Bit [Enabled] Intel(R) HT Technology [Enabled] Active Processor Cores [All] A20M [Disabled] Intel(R) SpeedStep(TM) Tech [Enabled] Intel(R) Turbo Mode tech [Enabled] Intel(R) C-STATE Tech [Disabled]
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
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CPU Ratio Setting [Auto]
Allows you to set the ratio between the CPU Core Clock and the BCLK Frequency. Use <+> and <-> keys to adjust the ratio. The valid value ranges vary according to your CPU model.
C1E Support [Enabled]
[Enabled] Enables the C1E support function. This item should be enabled in order to
[Disabled] Disables this function.
Hardware Prefetcher [Enabled]
[Enabled] The processor fetches data and instructions from the memory into the
[Disabled] Disables this function.
Adjacent Cache Line Prefetch [Enabled]
[Enabled] The processor fetches the currently requested cache line, as well as the
[Disabled] The processor fetches only the currently requested cache line.
Max CPUID Value Limit [Disabled]
[Enabled] Allows legacy operating systems to boot even without support for CPUs
[Disabled] Disables this function.
Chapter 3
Intel(R) Virtualization Tech [Enabled]
[Enabled] Allows a hardware platform to run multiple operating systems separately
[Disabled] Disables this function.
enable the Enhanced Halt Sate.
cache that are likely to be required in the near future. This reduces the latency associated with memory reads.
subsequent cache line. This reduces the cache latency by making the next cache line immediately available if the processor requires it as well.
with extended CPUID functions.
and simultaneously, enabling one system to virtually function as several systems.
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 ag to always return to zero (0).
Intel(R) HT Technology [Enabled]
The Intel Hyper-Threading Technology allows a hyper-threading processor to appear as two logical processors to the operating system, allowing the operating system to schedule two threads or processes simultaneously.
[Enabled] Two threads per activated core are enabled.
[Disabled] Only one thread per activated core is enabled.
3-20 Chapter 3: BIOS setup
Page 83
Active Processor Cores [All]
Allows you to choose the number of CPU cores to activate in each processor package.
Conguration options: [All] [1] [2]
A20M [Disabled]
[Enabled] Allows Legacy OSes to be compatible with APs.
[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 specic
[Disabled] Disables this function.
condition.
Intel(R) C-STATE Tech [Disabled]
The Intel® C-State Technology allows the CPU to save more power under idle mode.
[Enabled] Enable this item only when you install a C-State Technology-supported
CPU.
[Disabled] Disables this function.
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. Conguration options: [Auto] [C1] [C3] [C6]
3.6.2 North Bridge Conguration
The North Bridge Conguration menu allows you to change the advanced chipset settings.
Advanced
North Bridge Chipset Conguration
IMC Type : Lynneld
Memory Remap Feature [Enabled]
PCI MMIO Allocation: 4GB To 3072MB
Memory Remap Feature [Enabled]
[Disabled] Do not allow remapping of memory.
[Enabled] Allows for the segment of system memory that was previously overwritten
ASUS P7P55D EVO 3-21
by PCI devices to be remapped above the total physical memory.
BIOS SETUP UTILITY
ENABLE: Allow remapping of overlapped PCI memory above the total physical memory.
DISABLE: Do not allow remapping of memory.
Chapter 3
Page 84
3.6.3 Onboard Devices Conguration
Advanced
Onboard Devices Conguration
HDA Controller [Enabled] Front Panel Type [HD Audio] Realtek LAN1 [Enabled] LAN Boot ROM [Disabled] Realtek LAN2 [Enabled] LAN Boot ROM [Disabled] Onboard 1394 Controller [Enabled] J-Micron eSATA/PATA Controller [IDE Mode] Serial Port1 Address [3F8/IRQ4]
HDA Controller [Enabled]
[Enabled] Enables the High Denition Audio Controller.
[Disabled] Disables the controller.
Front Panel Type [HD Audio]
Allows you to set the front panel audio connector (AAFP) mode to legacy AC’97 or
high-denition audio depending on the audio standard that the front panel audio
module supports.
[AC97] Sets the front panel audio connector (AAFP) mode to legacy AC’97
[HD Audio] Sets the front panel audio connector (AAFP) mode to high denition audio.
Realtek LAN1/LAN2 [Enabled]
[Enabled] Enables the Realtek LAN1/LAN2 controller.
Chapter 3
[Disabled] Disables the controller.
LAN Boot ROM [Disabled]
This item appears only when you set the previous item to [Enabled].
[Enabled] Enables the Realtek Gigabit LAN Boot ROM.
[Disabled] Disables the LAN Boot ROM.
BIOS SETUP UTILITY
Options
Enabled Disabled
The following item appears only when you set the High Denition Audio item to [Enabled].
Onboard 1394 Controller [Enabled]
[Enabled] Enables the onboard IEEE 1394a controller.
[Disabled] Disables the controller.
J-Micron eSATA/PATA Controller [IDE Mode]
Allows you to select the JMicron eSATA/PATA controller operating mode.
[Disabled] Disables the controller.
[IDE Mode] Set to [IDE Mode] when you want to use the Serial ATA hard disk drives as
[AHCI Mode] Set to [AHCI Mode] when you want the SATA hard disk drives to use the
3-22 Chapter 3: BIOS setup
Parallel ATA physical storage devices.
AHCI (Advanced Host Controller Interface). The AHCI allows the onboard storage driver to enable advanced Serial ATA features that increases storage performance on random workloads by allowing the drive to
internally optimize the order of commands..
Page 85
Serial Port1 Address [3F8/IRQ4]
Allows you to select the Serial Port1 base address.
Conguration options: [Disabled] [3F8/IRQ4] [2F8/IRQ3] [3E8/IRQ4] [2E8/IRQ3]
3.6.4 USB Conguration
The items in this menu allow you to change the USB-related features. Select an item and
press <Enter> to display the conguration 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 Functions [Enabled]
[Enabled] Enables the USB Host Controllers.
[Disabled] Disables the controllers.
The following items appear only when you set USB Functions to [Enabled].
BIOS SETUP UTILITY
Disabled Enabled
Options
Legacy USB Support [Auto]
[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.
[Enabled] Enables the support for USB devices on legacy operating systems (OS).
[Disabled] Disables the function.
BIOS EHCI Hand-off [Enabled]
[Enabled] Enables the support for operating systems without an EHCI hand-off
feature.
[Disabled] Disables the function.
ASUS P7P55D EVO 3-23
Chapter 3
Page 86

3.6.5 PCIPnP

The PCI PnP 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]
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 congures all the devices in the system.

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.

3.6.7 T.Probe [Enabled]

[Disabled] Disables the T.Probe function.
[Enabled] Enables the T.Probe function..
Chapter 3
BIOS SETUP UTILITY
operating system congures the Plug and Play devices not required for
boot.
3-24 Chapter 3: BIOS setup
Page 87

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 conguration options.
Main Ai Tweaker Advanced Power Boot Tools Exit
Suspend Mode [Auto] Repost Video on S3 Resume [Disabled] 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 Conguration and Power Interface (ACPI) state to be used
for system suspend.
[Auto] The system automatically congures the ACPI suspend mode.
[S1 (POS) only] Sets the ACPI suspend mode to S1/POS (Power On Suspend).
[S3 only] Sets the ACPI suspend mode to S3/STR (Suspend To RAM).

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

3.7.3 ACPI 2.0 Support [Disabled]

[Disabled] The system will not add additional tables as per ACPI 2.0 specications.
[Enabled] The system adds additional tables as per ACPI 2.0 specications.

3.7.4 ACPI APIC Support [Enabled]

[Disabled] The system disables the Advanced Conguration and Power Interface
(ACPI) support in the Advanced Programmable Interrupt Controller (APIC).
[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 P7P55D EVO 3-25
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Page 88
3.7.6 APM Conguration
Power
APM Conguration
Restore on AC Power Loss [Power Off]
Power On By RTC Alarm [Disabled] Power On By PCI Devices [Disabled] Power On By PCIE Devices [Disabled] Power On By PS/2 Keyboard [Disabled] Power On By PS/2 Mouse [Disabled]
Restore On AC Power Loss [Power Off]
[Power On] The system goes into on state after an AC power loss.
[Power Off] The system goes into off state after an AC power loss.
[Last State] The system goes into either off or on state, whatever the system state was
Power On By RTC Alarm [Disabled]
[Disabled] Disables RTC to generate a wake event.
[Enabled] When set to [Enabled], the items
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
Chapter 3
BIOS SETUP UTILITY
Options
Power Off Power On Last State
before the AC power loss.
RTC Alarm Date (Days) and System
Time will become user-congurable with set values.
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 rst 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]
[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 specic keys on the PS/2 keyboard to turn on the system. This feature
requires an ATX power supply that provides at least 1A on the +5VSB lead.
Power On By PS/2 Mouse [Disabled]
[Disabled] Disables the Power On by a PS/2 mouse.
[Enabled] Enables the Power On by a PS/2 mouse. This feature requires an ATX
3-26 Chapter 3: BIOS setup
power supply that provides at least 1A on the +5VSB lead.
Page 89

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 Fan 2 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]
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
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 1/2 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 eld shows N/A. Select Ignored if you do not wish to display the detected speed.
BIOS SETUP UTILITY
CPU Temperature (PECI)
←→ Select Screen ↑↓ Select Item
Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit
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 depending on
the CPU temperature.
[Silent] Sets to [Silent] to minimize the fan speed for quiet CPU fan operation.
[Turbo] Sets to [Turbo] to achieve maximum CPU fan speed.
Chassis Q-Fan Control [Disabled]
[Disabled] Disables the Chassis Q-Fan control feature.
[Enabled] Enables the Chassis Q-Fan control feature.
ASUS P7P55D EVO 3-27
Chapter 3
Page 90
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
[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.

3.8 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
Chapter 3
on the chassis temperature.
BIOS SETUP UTILITY
Species the Boot Device
Boot 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
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.
Conguration options: [Removable Dev.] [Hard Drive] [ATAPI CD-ROM] [Disabled]
To select the boot device during system startup, press <F8> when ASUS Logo appears.
To access Windows OS in Safe Mode, do any of the following:
- Press <F5> when ASUS Logo appears.
- Press <F8> after POST.
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BIOS SETUP UTILITY
Page 91
3.8.2 Boot Settings Conguration
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] POST State LEDs [Enabled]
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]
[Enabled] Enables the full screen logo display feature.
[Disabled] Disables 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.
BIOS SETUP UTILITY
Allows BIOS to skip certain tests while booting. This will decrease the time needed to boot the system.
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.
POST State LEDs [Enabled]
[Enabled] Turn on onboard device LEDs in the order of the device POST sequence.
[Disabled] Disables this function.
ASUS P7P55D EVO 3-29
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3.8.3 Security

The Security menu items allow you to change the system security settings. Select an item
and press <Enter> to display the conguration 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, key in a password composed of at least six letters and/or numbers, then press <Enter>.
3. Conrm 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.
Chapter 3
BIOS SETUP UTILITY
<Enter> to change password. <Enter> again to disable password.
Change Supervisor Password item and press <Enter>.
If you have forgotten your BIOS password, you can clear clear it by erasing the CMOS Real Time Clock (RTC) RAM. See section 2.6 Jumpers for information on how to erase the RTC RAM.
After you have set a supervisor password, the other items appear to allow you to change other security settings.
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 eld.
[Limited] Allows changes only to selected elds, such as Date and Time.
[Full Access] Allows viewing and changing all the elds in the Setup utility.
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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. Conrm 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]
BIOS checks for user password both when accessing Setup and booting the system.
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3.9 Tools menu

The Tools menu items allow you to congure 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 Drive Xpert Conguration
AI NET 2
ASUS EZ Flash 2 Express Gate [Auto] Enter OS Timer [10 Seconds] Reset User Data [No]
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
Chapter 3
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
BIOS SETUP UTILITY
←→ Select Screen ↑↓ Select Item
Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
BIOS SETUP UTILITY
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
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
Add Your CMOS Prole
Allows you to save the current BIOS le to the BIOS Flash. In the Name sub-item, key in your prole name and press <Enter>, and then choose a prole 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> to
load the le.
Start O.C. Prole
Allows you to run the utility to save and load CMOS. Press <Enter> to run the utility.
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ASUSTek O.C. Prole Utility V1.38
Current CMOS
BOARD: P7P55D EVO VER: 0105 DATE: 07/08/2009
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 ash 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 le only coming from the same memory/CPU conguration and BIOS version.
Only the CMO le can be loaded.
3.9.2 Drive Xpert Conguration
Tools
Drive Xpert conguration
Drive Xpert Group :
Current Mode :Normal Mode
Driver Xpert Mode Update:
Update To Super Speed [Press Enter] Update To EZ Backup [Press Enter] Update To Normal Mode [Press Enter]
Drive Xpert Device(s) List :
SATA_E1 (Gray) : [ST380817AS] SATA_E2 (Dark Blue) : [ST380817AS]
BIOS SETUP UTILITY
Update Drive Xpert Mode changes after saving changes and exiting BIOS setup.
Discard Drive Xpert Mode changes after exiting BIOS setup without saving any changes.
Chapter 3
Before using the Drive Xpert function, ensure that you have connected the SATA signal cables and installed SATA hard disk drives to the SATA_E1 (gray) and SATA_E2 (dark blue) connectors.
You can only make one Drive Xpert change a time before you save BIOS settings and restart the computer.
Drive Xpert Group:
Current Mode
Displays the current Drive Xpert mode.
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Changed Mode
This item appears only when you select a Drive Xpert mode to update and displays the Drive Xpert mode that you have changed.
Ultra Space
This item appears only when you have created a drive partition using the Ultra Space function.
Drive Xpert Mode Update:
Update To Super Speed [Press Enter]
Allows you to use the Super Speed function that combines two hard drives as one single drive partition.
Update To EZ Backup [Press Enter]
Allows you to use the EZ Backup function that copies and maintains an identical image of data from the SATA_E1 (gray) drive to the SATA_E2 (drak blue) drive.
Update To Normal Mode [Press Enter]
Allows you to use the SATA_E1 (gray) and SATA_E2 (dark blue) connectors as normal SATA connectors.
Chapter 3
All original data of the two hard drives will be erased for Super Speed setup.
All original data of the SATA_E2 (dark blue) hard disk will be erased for EZ Backup setup.
When using only one hard disk in Normal Mode, connect the hard disk to the SATA_E1 (gray) connector on the motherboard.
Create Ultra Space [Press Enter]
This item appears only when you created a Super Speed or a EZ Backup set using two hard drives with different capacity and allows you to create a single drive partition using all the drive space unused by Drive Xpert.
Delete Ultra Space [Press Enter]
This item appears only when you have created a drive partition using the Ultra Space function. All data stored in the Ultra Space partition will be erased.
Drive Xpert Device(s) List:
SATA_E1 (Gray) / SATA_E2 (Dark Blue)
Press <Enter> to display the information of the hard disks which are connected to the SATA_E1 (gray) and SATA_E2 (dark blue) connectors on the motherboard.
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3.9.3 AI NET 2

Tools
AI NET 2 Pair Status Length
Check Realtek LAN cable [Disabled]
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).
BIOS SETUP UTILITY
Check Marvell LAN cable during POST.

3.9.4 ASUS EZ Flash 2

Allows you to run ASUS EZ Flash 2. When you press <Enter>, a conrmation message
appears. Use the left/right arrow key to select between [Yes] or [No], then press <Enter> to
conrm your choice.
For more details, refer to section 3.2.2 ASUS EZ Flash 2 utility.

3.9.5 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. Conguration options: [Enabled] [Disabled] [Auto]
Enter OS Timer [10 Seconds]
Sets countdown duration that the system waits at the Express Gate’s rst screen before starting Windows or other installed OS. Choose [Prompt User] to stay at the rst screen of
Express Gate for user action. Conguration 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 to the
[No] Sets to [No] to disable the
ASUS P7P55D EVO 3-35
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.
Reset User Data function when entering the
Express Gate.
The rst time wizard will run again when you enter the Express Gate environment after
clearing its settings.
Chapter 3
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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 & Save Changes Exit & Discard Changes Discard Changes
Load Setup Defaults
Exit & Save Changes
Once you are nished 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 conrmation window appears. Select Ok to save changes and exit.
Chapter 3
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
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.
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.
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 elds other than System Date, System Time, and Password, the BIOS asks for a conrmation 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 conrmation 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 conrmation 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.
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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 Drivers 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
menu shows the
applications and
other software that
the motherboard
ASUS P7P55D EVO 4-1
drivers to use the devices.
The Utilities
supports.
Click an item
to install
If Autorun is NOT enabled in your computer, browse the contents of the support DVD to
locate the le ASSETUP.EXE from the BIN folder. Double-click the ASSETUP.EXE to run
the DVD.
The Make Disk menu contains items to create the RAID/AHCI driver disk.
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 an icon to display DVD/ motherboard information
Chapter 4
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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 les are in Portable Document Format (PDF). Install the Adobe®
Acrobat® Reader from the Utilities menu before opening the les.
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
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