Asus P7P55D User Manual

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P7P55D
Motherboard
Page 2
E4977
Second Edition August 2009
Copyright © 2009 ASUSTeK COMPUTER INC. All Rights Reserved.
No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK COMPUTER INC. (“ASUS”).
Product warranty or service will not be extended if: (1) the product is repaired, 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 ......................................................................................................................vii
Safety information .................................................................................................... viii
About this guide ......................................................................................................... ix
P7P55D specications summary .............................................................................. xi
Chapter 1: Product introduction
1.1 Welcome! ....................................................................................................1-1
1.2 Package contents.......................................................................................1-1
1.3 Special features..........................................................................................1-2
1.3.1 Product highlights........................................................................1-2
1.3.2 ASUS Xtreme Design—Hybrid Processor ..................................1-3
1.3.3 ASUS Xtreme Design—Hybrid Phase ........................................1-3
1.3.4 ASUS Xtreme Design—Hybrid OS .............................................1-3
1.3.5 ASUS Exclusive Features ........................................................... 1-4
Chapter 2: Hardware information
2.1 Before you proceed ...................................................................................2-1
2.2 Motherboard overview ............................................................................... 2-2
2.2.1 Motherboard layout ..................................................................... 2-2
2.2.2 Layout contents ...........................................................................2-3
2.2.3 Placement direction.....................................................................2-4
2.2.4 Screw holes.................................................................................2-4
2.3 Central Processing Unit (CPU) .................................................................2-5
2.3.1 Installing the CPU .......................................................................2-5
2.3.2 Installing the CPU heatsink and fan ............................................ 2-8
2.3.3 Uninstalling the CPU heatsink and fan........................................2-9
2.4 System memory .......................................................................................2-10
2.4.1 Overview ................................................................................... 2-10
2.4.2 Memory congurations .............................................................. 2-11
2.4.3 Installing a DIMM ......................................................................2-19
2.4.4 Removing a DIMM ....................................................................2-19
2.5 Expansion slots........................................................................................2-20
2.5.1 Installing an expansion card......................................................2-20
2.5.2 Conguring an expansion card .................................................2-20
2.5.3 Interrupt assignments................................................................2-21
2.5.4 PCI slots ....................................................................................2-22
2.5.5 PCI Express x1 slots ................................................................. 2-22
2.5.6 PCI Express 2.0 x16 slots ......................................................... 2-22
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Contents
2.6 Onboard switch ........................................................................................ 2-24
2.7 Jumpers ....................................................................................................2-25
2.8 Connectors ...............................................................................................2-27
2.8.1 Rear panel connectors .............................................................. 2-27
2.8.2 Audio I/O connections ............................................................... 2-28
2.8.3 Internal connectors....................................................................2-31
2.8.4. ASUS Q-Connector (system panel) ..........................................2-40
2.9 Onboard LEDs .......................................................................................... 2-41
2.10 Starting up for the rst time .................................................................... 2-42
2.11 Turning off the computer ......................................................................... 2-42
Chapter 3: BIOS setup
3.1 Knowing BIOS ............................................................................................3-1
3.2 Updating BIOS ............................................................................................ 3-1
3.2.1 ASUS Update utility.....................................................................3-1
3.2.2 ASUS EZ Flash 2 utility ............................................................... 3-5
3.2.3 ASUS CrashFree BIOS 3 utility...................................................3-6
3.3 BIOS setup program ..................................................................................3-6
Entering BIOS Setup at startup .................................................................... 3-6
Entering BIOS Setup after POST ................................................................. 3-6
3.3.1 BIOS menu screen ...................................................................... 3-7
3.3.2 Menu bar ..................................................................................... 3-7
3.3.3 Navigation keys ........................................................................... 3-8
3.3.4 Menu items..................................................................................3-8
3.3.5 Submenu items ........................................................................... 3-8
3.3.6 Conguration elds .....................................................................3-8
3.3.7 Pop-up window............................................................................3-8
3.3.8 Scroll bar ..................................................................................... 3-8
3.3.9 General help................................................................................3-8
3.4 Main menu ..................................................................................................3-9
3.4.1 SATA 1-6 .....................................................................................3-9
3.4.2 Storage Conguration ............................................................... 3-11
3.4.3 AHCI Conguration ................................................................... 3-11
3.4.4 System Information ................................................................... 3-12
3.5 Ai Tweaker menu ...................................................................................... 3-13
3.5.1 OC Tuner Utility ......................................................................... 3-13
3.5.2 OC Tuner limit Value ................................................................ 3-13
3.5.3 Ai Overclock Tuner ................................................................... 3-14
3.5.4 CPU Ratio Setting .................................................................... 3-14
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Contents
3.5.5 Intel(R) SpeedStep(TM) Tech .................................................. 3-15
3.5.6 Intel(R) TurboMode Tech .......................................................... 3-15
3.5.7 Xtreme Phase Full Power Mode ..............................................3-15
3.5.8 DRAM Frequency .....................................................................3-15
3.5.9. DRAM Timing Control ..............................................................3-15
3.5.10 CPU Differential Amplitude ....................................................... 3-17
3.5.11 CPU Clock Skew ...................................................................... 3-17
3.5.12 CPU Voltage Mode [Offset] ...................................................... 3-17
3.5.13 IMC Voltage .............................................................................3-18
3.5.14 DRAM Voltage .........................................................................3-18
3.5.15 CPU PLL Voltage .....................................................................3-18
3.5.16 PCH Voltage .............................................................................3-18
3.5.17 DRAM DATA REF Voltage on CHA/B ......................................3-19
3.5.18 DRAM CTRL REF Voltage on CHA/B ...................................... 3-19
3.5.19 Load-Line Calibration ............................................................... 3-19
3.5.20 CPU Spread Spectrum .............................................................3-19
3.5.21 PCIE Spread Spectrum ............................................................ 3-19
3.6 Advanced menu .......................................................................................3-20
3.6.1 CPU Conguration .................................................................... 3-20
3.6.2 North Bridge Conguration........................................................3-22
3.6.3 Onboard Device Conguration .................................................. 3-23
3.6.4 USB Conguration ....................................................................3-24
3.6.5 PCIPnP .....................................................................................3-25
3.6.6 Intel VT-d Conguration ...........................................................3-25
3.6.7 T.Probe ..................................................................................... 3-25
3.7 Power menu .............................................................................................. 3-25
3.7.1 Suspend Mode ......................................................................... 3-26
3.7.2 Repost Video on S3 Resume ................................................... 3-26
3.7.3 ACPI 2.0 Support ..................................................................... 3-26
3.7.4 ACPI APIC Support .................................................................. 3-26
3.7.5 EuP Ready ............................................................................... 3-26
3.7.6 APM Conguration .................................................................... 3-27
3.7.7 Hardware Monitor......................................................................3-28
3.8 Boot menu ................................................................................................3-29
3.8.1 Boot Device Priority...................................................................3-29
3.8.2 Boot Settings Conguration ......................................................3-30
3.8.3 Security ..................................................................................... 3-31
3.9 Tools menu ............................................................................................... 3-33
3.9.1 ASUS O.C. Prole ..................................................................... 3-33
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3.9.2 AI NET 2 .................................................................................... 3-34
3.9.3 ASUS EZ Flash 2 ...................................................................... 3-34
3.9.4 Express Gate ...........................................................................3-35
3.10 Exit menu .................................................................................................. 3-36
Chapter 4: Software support
4.1 Installing an operating system .................................................................4-1
4.2 Support DVD information .......................................................................... 4-1
4.2.1 Running the support DVD ........................................................... 4-1
4.2.2 Obtaining the software manuals..................................................4-2
4.3 Software information .................................................................................4-3
4.3.1 ASUS PC Probe II ....................................................................... 4-3
4.3.2 ASUS AI Suite ............................................................................. 4-4
4.3.3 ASUS Fan Xpert..........................................................................4-5
4.3.4 ASUS EPU-6 Engine...................................................................4-6
4.3.5 ASUS Express Gate....................................................................4-7
4.3.6 VIA® High Denition Audio utility ................................................. 4-8
4.4 ASUS Unique Overclocking Utility—TurboV EVO ................................... 4-9
4.4.1 Using ASUS TurboV .................................................................... 4-9
4.4.2 Using ASUS TurboV Auto Tuning Mode .................................... 4-10
4.4.3 Using ASUS Turbo Key ............................................................. 4-11
4.5 RAID congurations ................................................................................4-12
4.5.1 RAID denitions ........................................................................4-12
4.5.2 Installing Serial ATA hard disks .................................................4-13
4.5.3 Setting the RAID item in BIOS .................................................. 4-13
4.5.4 Intel® Matrix Storage Manager option ROM utility ..................... 4-13
4.6 Creating a RAID driver disk.....................................................................4-17
4.6.1 Creating a RAID driver disk without entering the OS ................ 4-17
4.6.2 Creating a RAID driver disk in Windows® .................................. 4-17
4.6.3 Installing the RAID driver during Windows® OS installation ...... 4-18
4.6.4 Using a USB oppy disk drive ................................................... 4-18
Chapter 5: Multiple GPU technology support
5.1 ATI® CrossFireX™ technology ..................................................................5-1
5.1.1 Requirements .............................................................................. 5-1
5.1.2 Before you begin ......................................................................... 5-1
5.1.3 Installing two CrossFireX™ graphics cards ................................5-2
5.1.4 Installing the device drivers ......................................................... 5-3
5.1.5 Enabling the ATI® CrossFireX™ technology ...............................5-3
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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 BATTERY­RELATED INSTRUCTIONS.
Operation safety
Before installing the motherboard and adding devices on it, carefully read all the manuals that came with the package.
Before using the product, ensure all cables are correctly connected and the power cables are not damaged. If you detect any damage, contact your dealer immediately.
To avoid short circuits, keep paper clips, screws, and staples away from connectors, slots, sockets and circuitry.
Avoid dust, humidity, and temperature extremes. Do not place the product in any area where it may become wet.
This motherboard should only be used in environments with ambient temperatures between 5°C (41°F) and 40°C (104°F).
Place the product on a stable surface.
If you encounter technical problems with the product, contact a qualied service
technician or your retailer.
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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™
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.that you must press the enclosed key.
Example: <Enter> means that you must press the Enter or Return key.Return key.
<Key1> + <Key2> + <Key3> If you must press two or more keys simultaneously, the key
names are linked with a plus sign (+).
Example: <Ctrl> + <Alt> + <Del>
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P7P55D specications summary
CPU
Chipset Intel® P55 Express Chipset
Memory
Expansion Slots
Multi-GPU Support
Storage Intel® P55 Express Chipset:
LAN
USB
IEEE 1394
Audio
ASUS Q-Design ASUS Q-Design:
LGA1156 socket for Intel® Core™ i7 Processors/ Core™ i5 processors Supports Intel® Turbo Boost Technology * Refer to www.asus.com for Intel CPU support list
Dual channel memory architecture
- 4 x 240-pin DIMM sockets support unbuffered non-ECC
DDR3 2133(O.C.)* / 1600 / 1333 / 1066 MHz
memeory modules
- Supports up to 16GB system memory
Supports Intel® Extreme Memory Prole (XMP) * Hyper DIMM support is subject to the physical characteristics of individual CPUs. Some hyper DIMMs only support one DIMM per channel. ** Refer to www.asus.com or this user manual for the
Memory QVL (Qualied Vendors Lists)
2 x PCI Express 2.0 x 16 slots
- One slot at x16 mode (single, blue)
- One slot at x4 mode, 2.5GT/s (black) 2 x PCI Express 2.0 x1 slots (2.5GT/s) 3 x PCI slots
Supports ATI® Quad-GPU CrossFireX™ Technology
- 6 x SATA 3.0 Gb/s ports
- Intel® Matrix Storage Technology supporting SATA RAID 0,1, 5, and 10
JMicron® JMB363 SATA & PATA controller
- 1 x Ultra DMA 133/100/66 for up to 2 PATA devices
- 1 x SATA 3.0 Gb/s port (black)
- 1 x eSATA 3.0 Gb/s port (SATA on-the-go)
Realtek® 8112L Gigabit LAN controller featuring AI NET2
14 x USB 2.0 ports (6 ports at mid-board, 8 ports at rear panel)
VIA® VT6308P controller supports 2 x IEEE 1394a ports (one at mid-board, one at rear panel)
VIA® VT1828S 8-channel High Denition Audio CODEC
- Absolute Pitch BD192/24
- DTS Surround Sensation UltraPC
- BD audio layer Content Protection
- Supports Jack-Detection, Multi-streaming, and Front Panel Jack-Retasking
- Optical S/PDIF out port at back I/O
- ASUS Q-LED (CPU, DRAM, VGA, Boot Device LED)
- ASUS Q-Slot
- ASUS Q-DIMM
(continued on the next page)
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P7P55D specications summary
ASUS Unique Features ASUS Hybrid Processor – ASUS TurboV EVO
ASUS Exclusive Overclocking Features
Back Panel I/O Ports 1 x PS/2 Keyboard port (Purple)
- Auto Tuning, TurboV, and Turbo Key
ASUS Hybrid Phase
- T.Probe Technology for Active Cooling
- 12+2 Phase Power Design
ASUS Hybrid OS – Express Gate
ASUS Xtreme Design
ASUS Exclusive Features
- MemOK!
- ASUS EPU
ASUS Quiet Thermal Solution:
- ASUS Fanless Design: Stylish Heat-sink solution
- ASUS Fanless Design: Stack Cool 3
- ASUS Fan Xpert
ASUS Crystal Sound
- ASUS Noise Filter
ASUS EZ DIY:
- ASUS Q-Shield
- ASUS Q-Connector
- ASUS O.C. Prole
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 2
- ASUS My Logo 2
- Multi-language BIOS
Precision Tweaker 2:
- vCore: Adjustable CPU voltage at 0.00625V increment
- vIMC: 49-step IMC voltage control
- vDRAM Bus: 81-step DRAM voltage control
- vPCH: 2-step chipset voltage control
- vCPU PLL: 4-step reference voltage control
SFS (Stepless Frequency Selection):
- Internal Base Clock tuning from 80MHz up to 500 MHz at 1MHz increment
- PCI Express frequency tuning from 100MHz up to 200MHz at 1MHz increment
Overclocking Protection:
- ASUS C.P.R.(CPU Parameter Recall)
1 x PS/2 Mouse port (Green) 1 x Optical S/PDIF Out 1 x IEEE1394a 1 x eSATA 3.0 Gb/s port (SATA on-the-go) 1 x RJ45 port 8 x USB 2.0/1.1 8-channel Audio I/O
(continued on the next page)
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P7P55D specications summary
Internal I/O Connectors
BIOS Features
Manageability WfM 2.0, DMI 2.0, WOL by PME, WOR by PME, PXE
Support DVD Contents Drivers
Form Factor ATX Form Factor, 12”x 9.6” (30.5cm x 24.4cm)
*Specications are subject to change without notice.
3 x USB connectors support additional 6 USB ports 1 x IDE connector 7 x SATA connectors 1 x CPU Fan connector 2 x Chassis Fan connectors (1 x 4-pin, 1 x 3-pin) 1 x Power Fan connector 1 x IEEE1394a connector 1 x COM port connector Front panel audio connector 1 x S/PDIF Out Header CD audio in 24-pin ATX Power connector 1 x 8-pin ATX 12V Power connectors System Panel (Q-Connector) 1 x MemOK! button
16 Mb Flash ROM, AMI BIOS, PnP, DMI 2.0, WfM 2.0, SM BIOS
2.5, ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFree BIOS 3
ASUS Utilities ASUS Update Anti-virus software (OEM version)
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User Manual
Chapter 1
Chapter 1: Product introduction
1.1 Welcome!
Thank you for buying an ASUS® P7P55D motherboard!
The motherboard delivers a host of new features and latest technologies, making it another standout in the long line of ASUS quality motherboards!
Before you start installing the motherboard, and hardware devices on it, check the items in your package with the list below.
1.2 Package contents
Check your motherboard package for the following items.
ASUS P7P55D motherboard User guide Support DVD
4 x Serial ATA 3.0Gb/s cables
ASUS P7P55D
1 x Ultra DMA 133/
100/66 cable
1 x 2-in-1 ASUS Q-Connector kit
If any of the above items is damaged or missing, contact your retailer.
The illustrated items above are for your reference only. Actual product specications
may vary with different models.
1 x ASUS Q-Shield
1-1
Page 16
1.3 Special features
1.3.1 Product highlights
Chapter 1
Green ASUS
This motherboard and its packaging comply with the European Union’s Restriction on the use of Hazardous Substances (RoHS). This is in line with the ASUS vision of creating environment-friendly and recyclable products/packagings to safeguard consumers’ health while minimizing the impact on the environment.
Intel® LGA1156 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 support
Double Speed; Double Bandwidth
This motherboard supports the latest PCIe 2.0 devices for double speed and bandwidth that enhances system performance. Refer to page 2-22 for details.
Quad-GPU CrossFireX™ support!
Flexible Multi-GPU solution, Your Weapon of Choice!
P7P55D brings you the multi-GPU choice of CrossFireX™. The motherboard features the most powerful Intel® P55 platform to optimize PCIe allocation in multiple GPU congurations.
Expect a brand-new gaming style you’ve never experienced before! Refer to Chapter 5 for
details.
Dual-Channel DDR3 DDR3 2133 (O.C.)/1600/1333/1066 support
The motherboard supports DDR3 memory that features data transfer rates of 2133(O.C.) /
1600 / 1333 / 1066 MHz to meet the higher bandwidth requirements of the latest 3D graphics,
multimedia, and Internet applications. The dual-channel DDR3 architecture enlarges the bandwidth of your system memory to boost system performance. Refer to page 2-10 for details.
1-2 Chapter 1: Product Introduction
Page 17
1.3.2 ASUS Xtreme Design—Hybrid Processor
TurboV EVO
Ultimate O.C. Processor
The ultimate O.C. processor satises every level of overclockers—from die-hard enthusiasts
to beginners. Auto tuning intelligently pushes the system to the fastest clock speeds while
maintaining stability. Turbo Key boosts performance with just one touch; while TurboV offers
more options to advanced overclockers to achieve world O.C. record. Refer to page 4-9 for details.
Auto Tuning
Auto System Level Up
Auto Tuning is an intelligent tool that automates overclocking to achieve a total system level up. This tool also provides stability testing. Even O.C. beginners can achieve extreme yet stable overclocking results with Auto Tuning! Refer to page 4-10 for details.
1.3.3 ASUS Xtreme Design—Hybrid Phase
T.Probe
Leading Active Cooling Technology
The T.Probe microchip detects and balances power phase loading and temperature in real-
time. This feature optimizes the power phase functions, allowing components to run at lower
temperatures and extending their lifespan.
ASUS 12+2 Phase Power Design
Unprecedented Innovation with the Best Quality Component for Best Performance
The groundbreaking 12+2 phase VRM design is brought to the ASUS motherboards. 12+2 phase power design, 12-phase for vCore and extra 2-phase for Memory controller inside
CPU can provide the highest power 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.
Chapter 1
1.3.4 ASUS Xtreme Design—Hybrid OS
ASUS Express Gate
Instant Online! Instant Fun!
Express Gate is an ASUS exclusive OS that provides you with quick access to the Internet and key applications without entering the Windows® OS. Refer to page 3-36 and 4-7 for details.
The actual boot time is subject to hardware congurations and product models.
ASUS P7P55D
1-3
Page 18
1.3.5 ASUS Exclusive Features
MemOK!
Chapter 1
Any Memory is A-OK!
Memory compatibility is among the top concerns during computer upgrades. Worry no more. MemOK! is the fastest memory booting solution today. This remarkable memory rescue tool requires nothing but a push of a button to patch memory issues and get your system up and running in no time. The technology is able to determine failsafe settings that can dramatically improve your system booting success. Refer to page 2-24 for details.
ASUS EPU
System Level Energy Saving
The new ASUS EPU—the world’s rst power saving engine, has been upgraded to a new 6
engine version, which provides total system power savings by detecting current PC loadings and intelligently moderating power in real-time. With auto phase switching for components (which includes the CPU, VGA card, memory, chipset, hard drives and CPU cooler / system fans), the EPU automatically provides the most appropriate power usage via intelligent acceleration and overclocking—helping save power and money. Refer to page 4-6 for details.
ASUS Quiet Thermal Solutions
ASUS Quiet Thermal solutions make the system more stable and enhances the overclocking capability.
ASUS Fanless Design—Heat-sink solution
The heat sink design effectively directs the chipsets’ generated heat to the heatsink
near the back I/O ports, where the generated heat is carried away by the existing
airow from the CPU fan. This innovative and groundbreaking design effectively lowers the system temperature by 10˚C, prevents any problems that are typical to standard chipsets, and allows you to install a side-ow fan or passive cooler. The heat sink
design provides you with the most reliable fanless thermal solution.
Up to 20ºC (36ºF) Cooler—Stack Cool 3
Effective Fanless Heat Dissipation at 0dB
Stack Cool 3 is a fanless cooling solution offered exclusively by ASUS. It effectively and noiselessly transfers heat generated by the critical components to the other side of the specially designed PCB (printed circuit board) for effective heat dissipation—
making temperatures cooler by up to 20˚C.
Fan Xpert
Active Quiet & Cool
ASUS Fan Xpert intelligently allows users to adjust both the CPU and chassis fan speed according to different ambient temperature, which is caused by different climate conditions in different geographic regions and system loading. Built-in variety of useful
proles offer exible controls of fan speed to achieve a quiet and cool environment.
Refer to page 4-5 for details.
1-4 Chapter 1: Product Introduction
Page 19
ASUS Crystal Sound
This feature can enhance speech-centric applications like Skype, online game, video conference and recording.
ASUS Noise Filter
Eliminate background noise while recording
This feature detects repetitive and stationary noises like computer fans, air conditioners, and other background noises then eliminates it in the incoming audio stream while recording.
ASUS EZ DIY
ASUS EZ DIY feature collection provides you with easy ways to install computer components, update the BIOS or back up your favorite settings.
ASUS Q-Design
DIY quickly, DIY easily!
ASUS Q-Design enhances your DIY experience. All of Q-LED, Q-Slot and Q-DIMM design speed up and simplify the DIY process!
ASUS Q-Shield
Easy and Comfortable Installations
The specially designed ASUS Q-Shield does without the usual “ngers”—making
it convenient and easy to install. With better electric conductivity, it ideally protects your motherboard against static electricity and shields it against Electronic Magnetic Interference (EMI).
ASUS Q-Connector
Make connection quick and accurate!
The ASUS Q-Connector allows you to connect or disconnect chassis front panel cables in one easy step with one complete module. This unique module eliminates the trouble of plugging in one cable at a time, making connection quick and accurate. Refer to page 2-40 for details.
ASUS EZ-Flash 2
Simply update BIOS from a USB ash drive before entering the OS
EZ Flash 2 is a user-friendly BIOS update utility. Simply launch this tool and update
BIOS from a USB ash drive before entering the OS. You can update your BIOS only in a few clicks without preparing an additional oppy diskette or using an OS-based ash
utility. Refer to page 3-5 for details.
ASUS O.C. Prole
Conveniently restore or load multiple BIOS settings
Freely share and distribute favorite overclocking settings. The motherboard features
the ASUS O.C. Prole that allows users to conveniently store or load multiple BIOS settings. The BIOS settings can be stored in the CMOS or a separate le, giving users
freedom to share and distribute their favorite overclocking settings. Refer to page 3-34 for details.
Chapter 1
ASUS P7P55D
1-5
Page 20
ASUS MyLogo2™
This feature allows you to convert your favorite photo into a 256-color boot logo for a more
Chapter 1
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.
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.
ASUS P7P55D 2-1
Page 22
2.2 Motherboard overview
2.2.1 Motherboard layout
Chapter 2
Refer to
2.8 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) 2-38
2. LGA1156 CPU Socket 2-5
3. DDR3 DIMM slots 2-10
4. DRAM overvoltage jumper (3-pin OV_DRAM) 2-26
5. CPU, chassis, and power fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN1, 3-pin CHA_FAN2, 3-pin PWR_FAN)
6. Serial port connector (9-pin COM1) 2-36
7. MemOK! switch 2-24
8. IDE connector (40-1 pin PRI_EIDE) 2-32
9. JMicron JMB363 Serial ATA connector (7-pin SATA_E1) 2-34
10. P55 Serial ATA connectors (7-pin SATA1-6) 2-33
11. System panel connector (20-8 pin PANEL) 2-39
12. Clear RTC RAM (3-pin CLRTC) 2-25
13. USB connectors (10-1 pin USB910, USB1112, USB1314) 2-35
14. Standby power LED 2-41
15. IEEE 1394a port connector (10-1 pin IE1394_2) 2-36
16. Optical drive audio connector (4-pin CD) 2-35
17. Front panel audio connector (10-1 pin AAFP) 2-31
18. Digital audio connector (4-1 pin SPDIF_OUT) 2-31
2-37
Chapter 2
ASUS P7P55D 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 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 pre­applied thermal paste. If so, skip this step.
The Thermal Interface Material is toxic and inedible. DO NOT eat it. If it gets into your eyes or touches your skin, wash it off immediately, and seek professional medical help.
7. Close the load plate (A), and then push down the load lever (B), ensuring that the front edge of the load plate slides under the retention knob (C).
Chapter 2
8. Insert the load lever under the retention tab.
ASUS P7P55D 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
To install the CPU heatsink and fan:
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® LGA1156 heatsink and fan assembly comes in a push-pin design and requires no tool to install.
Use an LGA1156-compatible CPU heatsink and fan assembly only. The LGA1156
socket is incompatible with the LGA775 and LGA1366 sockets in size and dimension.
If you purchased a separate CPU heatsink and fan assembly, ensure that the Thermal Interface Material is properly applied to the CPU heatsink or CPU before you install the heatsink and fan assembly.
Ensure that you have installed the motherboard to the chassis before you install the CPU fan and heatsink assembly.
1. Place the heatsink on top of the installed
A
CPU, making sure that the four fasteners match the holes on the motherboard.
2. Push down two fasteners at a time in
B
B
a diagonal sequence to secure the heatsink and fan assembly in place.
A
B
A
1
B
2-8 Chapter 2: Hardware information
A
Orient the heatsink and fan assembly such that the CPU fan cable is closest to the CPU fan connector.
1
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:
Chapter 2
1. Disconnect the CPU fan cable from the connector on the motherboard.
2. Rotate each fastener counterclockwise.
3. Pull up two fasteners at a time in a
B
A
B
diagonal sequence to disengage the heatsink and fan assembly from the motherboard.
A
B
B
A
A
4. Carefully remove the heatsink and fan assembly from the motherboard.
ASUS P7P55D 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 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 are supported for one DIMM per channel
only.
According to Intel CPU spec, DIMM voltage below 1.65V is recommended to protect the CPU.
According to Intel CPU spec, CPUs with a core frequency of 2.66G support the maximum DIMM frequency of up to DDR3-1333. To use DIMMs of a higher frequency with a 2.66G CPU, enable the
3.5.3 Ai Overclock Tuner
Always install DIMMs with the same CAS latency. For optimum compatibility, we recommend that you obtain memory modules from the same vendor.
Due to the memory address limitation on 32-bit Windows OS, when you install 4GB or more memory on the motherboard, the actual usable memory for the OS can be about 3GB or less. For effective use of memory, we recommend that you do any of the following:
- Use a maximum of 3GB system memory if you are using a 32-bit Windows OS.
- Install a 64-bit Windows OS when you want to install 4GB or more on the
motherboard. For more details, refer to the Microsoft® support site at http://support.microsoft.com/kb/929605/en-us.
This motherboard does not support DIMMs made up of 512Mb (64MB) chips or less (Memory chip capacity counts in Megabit, 8 Megabit/Mb = 1 Megabyte/MB).
DRAM O.C. Prole
for details.
feature in BIOS. Refer to section
Chapter 2
The default memory operation frequency is dependent on its Serial Presence Detect (SPD), which is the standard way of accessing information from a memory module. Under the default state, some memory modules for overclocking may operate at a lower frequency than the vendor-marked value. To operate at the vendor-marked or at a higher frequency, refer to section 3.5 Ai Tweaker menu for manual memory 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 2-11
Page 32
P7P55D Motherboard Qualied Vendors Lists (QVL) DDR3-1067MHz
capability for CPU at 2.66, 2.8 and 2.93GHz
1024MB SS
1024MB SS
2048MB DS
SS/DSChip
Chip NO.
Brand
MICRON D9KPT
ELPIDA J1108BABG-DJ-E
HYNIX H5TQ1G83AFPG7C
Vendor Part No. Size
CORSAIR CM3X1024-1066C7 1024MB DS N/A Heat-Sink Package 7 1.1
CT12864BA1067.8FF
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)
EBJ10UE8BAW0-AE-E
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
HMT125U6AFP8C-G7N0
Hynix
HYMT125U64ZNF8-G7 2048MB DS HYNIX HY5TQ1G831ZNFP-G7 7
Hynix
Chapter 2
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
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 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 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 2-13
Page 34
P7P55D 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)144MB(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 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 2-15
Page 36
P7P55D 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 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
Chapter 2
KINGSTON KHX13000D3LLK2/2GX(XMP) 2048MB(Kit of 2) SS N/A Heat-Sink Package 1.9
KINGSTON KHX13000D3LLK2/2GXN 2048MB(Kit of 2) SS N/A Heat-Sink Package 1.9
P7P55D 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
Brand
SS
Chip NO.
Chip
Chip NO.
Brand
N/A Heat-Sink Package
Chip
Chip NO.
Brand
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 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 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) 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
F3-16000CL9T-6GBPS(XMP)
G.SKILL
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) 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
OCZ3P20002GK(EPP)
OCZ
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
6GB(Kit of 3) DS
6GB(Kit 0f 3) DS N/A Heat-Sink Package 8(1066-8-8-8-20) 1.65
2GB(Kit of 2) SS
SS/DSChip
Chip NO.
Brand
Heat-Sink Package 9-9-9-24(1066-8-8-8-20)
N/A
Heat-Sink Package 9
N/A
Timing Dimm(Bios)
Voltage
1.65
1.9
support (Optional)
A* B* C*
P7P55D 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*
P7P55D 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)
Voltage
DIMM socket support (Optional)
A* B* C*
Chapter 2
ASUS P7P55D 2-17
Page 38
P7P55D 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) 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
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
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 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
F3-16000CL9T-6GBPS(XMP) 6GB(Kit of 3)
OCZ3P20002GK(EPP) 2GB(Kit of 2)
SS/DSChip
Brand
SS/DSChip
DS
SS
Chip NO.
Brand
N/A Heat-Sink Package
N/A Heat-Sink Package
Chip NO.
Timing Dimm(Bios)
Timing Dimm(Bios)
9-9-9-24(1066-8-8-8-20) 1.65
9 1.9
Voltage
Voltage
DIMM socket support (Optional)
A* B* C*
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.
B*: Supports two (2) modules inserted into the blue slots (A1 and B1) as one pair of
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.
DIMM socket support (Optional)
A* B* C*
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. Refer to section
3.5.3 Ai Overclock Tuner for details.
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 clip 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 clip snaps back in place and the DIMM is properly seated.
2.4.4 Removing a DIMM
To remove a DIMM
1. Press the retaining clip 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 clip. The DIMM might get damaged when it ips out with extra force.
2. Remove the DIMM from the socket.
ASUS P7P55D 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* 7 14 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 – USB 2.0 controller 1 shared USB 2.0 controller 2 shared HD audio Onboard SATA shared
shared
Chapter 2
ASUS P7P55D 2-21
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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 slot.
2.5.5 PCI Express x1 slots
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 two 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 3
PCI slot 2
PCI slot 1
PCIe 2.0 x16_2 slot (black, at x4 link)
PCI Express x1_2 slot
PCI Express x1_1 slot
PCIe 2.0 x16_1 slot (blue, at x16 link)
2-22 Chapter 2: Hardware information
Page 43
VGA conguration
Single VGA/PCIe card
Dual VGA/PCIe card
In single VGA card mode, use the PCIe 2.0 x16_1 slot (blue) for a PCI Express x16 graphics card to get better performance.
We recommend that you provide sufcient power when running CrossFireX™ 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 2-37 for details.
PCI Express operating mode
PCIe x16_1 PCIe x16_2
x16 (Recommend for single VGA)
x4 (PCIe card)
x16 x4
Chapter 2
ASUS P7P55D 2-23
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2.6 Onboard switch
Onboard switch allows 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.
MemOK! switch
Installing DIMMs that are incompatible 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.
Chapter 2
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™ OS environment.
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 fails to boot due to BIOS overclocking, press the MemOK! switch to boot and load BIOS default settings. A message 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.
2-24 Chapter 2: Hardware information
2.9 Onboard LEDs
for the exact location of the DRAM_LED.
Page 45
2.7 Jumpers
1. Clear RTC RAM (3-pin CLRTC)
This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, which include system setup information such as system passwords.
To erase the RTC RAM
1. Turn OFF the computer and unplug the power cord.
2. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3 for about 5–10 seconds, then move the cap back to pins 1-2.
3. Plug the power cord and turn ON the computer.
4. Hold down the <Del> key during the boot process and enter BIOS setup to re-enter data.
Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default position. Removing the cap will cause system boot failure!
If the steps above do not help, remove the onboard battery and move the jumper again to clear the CMOS RTC RAM data. After the CMOS clearance, reinstall the battery.
You do not need to clear the RTC when the system hangs due to overclocking. For system failure due to overclocking, use the C.P.R. (CPU Parameter Recall) feature. Shut down and reboot the system so the BIOS can automatically reset parameter settings to default values.
Due to the chipset behavior, AC power off is required to enable C.P.R. function. You must turn off and on the power supply or unplug and plug the power cord before rebooting the system.
Chapter 2
ASUS P7P55D 2-25
Page 46
2. DRAM overvoltage setting (3-pin OV_DRAM)
This jumper allows you to enable or disable the DRAM overvoltage settings in BIOS.
Chapter 2
OV_DRAM
Pins 1-2 (Enable OV) up to 2.5V
Pins 2-3 (Default) up to 2.0V
Before you change the jumper 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 the jumper.
The system may need a better cooling system, such as a water cooling system, to maintain stability under high voltage settings.
2-26 Chapter 2: Hardware information
Page 47
2.8 Connectors
2.8.1 Rear panel connectors
Chapter 2
Rear panel connectors
1. PS/2 mouse port (green) 7. Optical S/PDIF Out port
2. USB 2.0 ports 7 and 8 8. External SATA port
3. USB 2.0 ports 5 and 6 9. IEEE 1394a port
4. USB 2.0 ports 3 and 4 10. USB 2.0 ports 1 and 2
5. LAN (RJ-45) port* 11. Audio I/O ports**
6. PS/2 keyboard port (purple)
* Refer to the LAN port table on the next page.
** Refer to the audio port denitions table on the next page.
ASUS P7P55D 2-27
Page 48
*LAN port LED indications
Activity Link LED Speed LED
Status Description Status Description
OFF No link OFF 10 Mbps connection
ORANGE Linked ORANGE 100 Mbps connection
BLINKING Data activity GREEN 1 Gbps connection
** Audio 2, 4, 6, or 8-channel conguration
ACT/LINK
LED
LAN port
SPEED
LED
Port Headset
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
2.8.2 Audio I/O connections
Audio I/O ports
Connect to Headphone and Mic
2-channel
4-channel 6-channel 8-channel
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 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
2.8.3 Internal connectors
1. Digital audio connector (4-1 pin SPDIF_OUT)
This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port(s). Connect the S/PDIF Out module cable to this connector, then install the module to a slot opening at the back of the system chassis.
The S/PDIF module is purchased separately.
2. 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.
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, setIf 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 this connector is set to
item in the BIOS setup to
[HD Audio]
.
[HD Audio];
if you want to connect an
[AC97]
Chapter 2
. By default,
ASUS P7P55D 2-31
Page 52
3. 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.
Chapter 2
Drive jumper setting Mode of
Cable connector
device(s)
Single device Cable-Select or Master - Black
Two devices Cable-Select Master Black
Slave Gray
Master Master Black or gray
Slave Slave
Pin 20 on the IDE connector is removed to match the covered hole on the Ultra DMA cable connector. This prevents incorrect insertion when you connect the IDE cable.
Use the 80-conductor IDE cable for Ultra DMA 133/100/66 IDE devices.
If any device jumper is set as “Cable-Select”, ensure that all other device jumpers have the same setting.
2-32 Chapter 2: Hardware information
Page 53
4. 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.
• T
hese 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 Congure SATA as item in the BIOS to [RAID]. See section 3.4.2 Storage Conguration for details.
Before creating a RAID set, refer to section 4.5 RAID congurations or the RAID
manual bundled in the motherboard support DVD.
You must install Windows® XP Service Pack 2 or later version before using Serial ATA hard disk drives. The Serial ATA RAID feature (RAID 0, 1, 5, and 10) is available only if you are using Windows® XP SP2 or later version.
When using hot-plug and NCQ, set the Congure SATA as item in the BIOS to [AHCI]. See section 3.4.2 Storage Conguration for details.
Chapter 2
ASUS P7P55D 2-33
Page 54
5. JMicron® JMB363 Serial ATA connector (7-pin SATA_E1)
This connector is for the Serial ATA signal cable for Serial ATA hard disk drives and optical disc drives.
Chapter 2
2-34 Chapter 2: Hardware information
Page 55
6. 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.
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.
7. 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.
Chapter 2
ASUS P7P55D 2-35
Page 56
8. 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.
Chapter 2
9. Serial port connector (10-1 pin COM1)
This connector is for a serial (COM) port. Connect the serial port module cable to this connector, then install the module to a slot opening at the back of the system chassis.
Never connect a USB cable to the IEEE 1394a connector. Doing so will damage the motherboard!
The IEEE 1394a module is purchased separately.
The COM module is purchased separately.
2-36 Chapter 2: Hardware information
Page 57
10. CPU, chassis, and power fan connectors
®
P7P55D
CPU_FAN
PWR_FAN
Rotation
+12V
GND
GND
+12V
Rotation
CHA_FAN2
A
D
B
C
B
CHA_FAN1
GND CHA FAN PWR CHA FAN IN +5V
GND CPU FAN PWR CPU FAN IN CPU FAN PWM
C
A
D
(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~1000 mA (12 W max.) or a total of 1 A~4 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.
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 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.
ASUS P7P55D 2-37
Chapter 2
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 600 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
If you want to use two high-end PCI Express x16 cards, use a PSU with 1000W power or above to ensure the system stability.
http://support.asus.
for details.
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
ASUS P7P55D 2-39
Page 60
2.8.4. 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, making sure 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
Page 61
2.9 Onboard LEDs
1. 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 intuitive way to locate the root problem within seconds.
You may disable the POST State LEDs in BIOS. Refer to section
Conguration
2. Standby power LED
The motherboard comes with a standby power LED that lights up to indicate that the system is ON, in sleep mode, or in soft-off mode. This is a reminder that you should shut down the system and unplug the power cable before removing or plugging in any motherboard component. The illustration below shows the location of the onboard LED.
for details.
3.8.2 Boot Setting
Chapter 2
ASUS P7P55D 2-41
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2.10 Starting up for the rst time
1. After making all the connections, replace the system case cover.
2. Ensure 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 VGA detected
One continuous beep followed by two short beeps then a pause (repeated) One continuous beep followed by three short beeps
One continuous beep followed by four short beeps
Quick boot set to disabled No keyboard detected No memory detected
No VGA detected
Hardware component failure
7. At power on, hold down the <Delete> key to enter the BIOS Setup. Follow the instructions in Chapter 3.
2.11 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.
1. ASUS Update: Updates the BIOS in Windows® environment.
2. ASUS EZ Flash 2: Updates the BIOS using a USB ash disk.
3. ASUS CrashFree BIOS 3 utility: Restores the BIOS using the motherboard support
DVD or other removable devices 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.
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.
ASUS Update requires an Internet connection either through a network or an Internet Service Provider (ISP).
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Installing ASUS Update
To install ASUS Update:
1. Place the support DVD in the optical drive.
2. From the Main menu, click the Utilities tab, and then click Install ASUS Update VX.XX. XX.
3. The ASUS Update utility is copied to your system.
Updating the BIOS
To update the BIOS:
1. From the Windows® desktop, click Start
> Programs > ASUS > ASUSUpdate > ASUSUpdate to launch the ASUS
Update utility.
2. From the dropdown list, select any of the updating process.
Chapter 3
Quit all Windows® applications before you update the BIOS using this utility.
Updating from the Internet
a. SelectSelect Update BIOS from the
Internet, and then click Next.
3-2 Chapter 3: BIOS setup
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b. Select the ASUS FTP site
nearest you to avoid network trafc, or click Auto Select. Click Next.
c. From the FTP site, select the BIOS
version that you wish to download, then click Next.
Updating from a BIOS file
a. SelectSelect Update BIOS from a le,
then click Next.
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b. Locate the BIOS le from the OpenLocate the BIOS le from the Open
window, then click Open.
3. Follow the onscreen instructions to complete the update process.
Chapter 3
P7P55D.ROM
P7P55D
The ASUS Update utility is capable of updating itself through the Internet. Always update the utility to avail all its features.
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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3.2.2 ASUS EZ Flash 2 utility
The ASUS EZ Flash 2 feature allows you to update the BIOS without using an OS-based utility.
Before you start using this utility, download the latest BIOS from the ASUS website at www. asus.com.
To update the BIOS using EZ Flash 2
1. Insert the USB 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.
Enter the BIOS setup program. Go to the Tools menu to select EZ Flash 2 and
press <Enter> to enable it.
Press <Tab> to switch between drives until the correct BIOS le is found.
ASUSTek EZ Flash 2 BIOS ROM Utility V4.00
FLASH TYPE: MXIC 25L8005
Current ROM
BOARD: P7P55D VER: 0157 DATE: 06/19/2009
PATH: A:\
A:
Note
[Enter] Select or Load [Tab] Switch [V] Drive Info [Up/Down/Home/End] Move [B] Backup [Esc] Exit
Update ROM
BOARD: Unknown VER: Unknown DATE: Unknown
2. When the correct BIOS le is found, EZ Flash 2 performs the BIOS update process
and automatically reboots the system when done.
Only a USB ash disk with FAT 32/16 format and single partition can support the
ASUS EZ Flash 2 utility.
DO NOT shut down or reset the system while updating the BIOS to prevent system boot failure!
Ensure to load the BIOS default settings to ensure system compatibility and stability. Select the Load Setup Defaults item under the Exit menu. Refer to section 3.10 Exit Menu for details.
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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 recovering the BIOS! Doing so can cause system boot failure!
Chapter 3
3.3 BIOS setup program
Use the BIOS Setup program to update the BIOS or congure its parameters. The BIOS
screens include navigation keys and brief online help to guide you in using the BIOS Setup program.
Entering BIOS Setup at startup
To enter BIOS Setup at startup:
Press <Delete> during the Power-On Self-Test (POST). If you do not press <Delete>,
POST continues with its routines.
Entering BIOS Setup after POST
To enter BIOS Setup after POST:
Press <Ctrl>+<Alt>+<Del> simultaneously.
Press the reset button on the system chassis.
Press the power button to turn the system off then back on. Do this option only if you failed
to enter BIOS Setup using the rst two options.
3-6 Chapter 3: BIOS setup
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Using the power button, reset button, or the <Ctrl>+<Alt>+<Del> keys to force reset from a running operating system can cause damage to your data or system. We recommend to always shut down the system properly from the operating system.
The default BIOS settings for this motherboard apply for most conditions to ensure optimum performance. If the system becomes unstable after changing any BIOS settings, 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.
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 fails to boot after changing any BIOS setting, try to clear the CMOS and reset the motherboard to the default value. See section 2.6 Jumpers for details.
3.3.1 BIOS menu screen
Menu bar
Conguration eldsMenu items
General help
Main Ai Tweaker Advanced Power Boot Tools Exit
System Time [13:51:25] System Date [Wed 07/07/2009] Language [English]
SATA1 [HDT722516DLA380] SATA2 [Not Detected] SATA3 [ATAPI DVD DH1] SATA4 [Not Detected] SATA5 [Not Detected] SATA6 [Not Detected]
Storage Conguration System InformationSystem Information
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
BIOS SETUP UTILITY
Use [ENTER], [TAB] or [SHIFT-TAB] to
select a eld.
Use [+] or [-] to
congure system Date.
←→ Select Screen ↑↓ Select Item
+- Change Field Tab Select Field F1 General Help F10 Save and Exit ESC Exit
Sub-menu items
3.3.2 Menu bar
The menu bar on top of the screen has the following main items:
Main
Ai Tweaker
Advanced
Power
Boot
Tools
Exit
For changing the basic system conguration
For changing the overclocking settings
For changing the advanced system settings
For changing the advanced power management (APM) conguration
For changing the system boot conguration
For conguring options for special functions
For selecting the exit options and loading default settings
Chapter 3
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 (Advanced, Power, Boot, and Exit) on the menu bar have their respective menu items.
3.3.5 Submenu items
A solid triangle before each item on any menu screen means that the 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 user­congurable.
A congurable eld is enclosed in brackets, and is highlighted when selected. To change the value of a eld, select it then press <Enter> to display a list of options. Refer to 3.3.7 Pop-up
window.
Chapter 3
3.3.7 Pop-up window
Select a menu item then press <Enter> to
display a pop-up window with the conguration
options for that item.
Main Advanced Power Boot Tools Exit
3.3.8 Scroll bar
A scroll bar appears on the right side of a menu screen when there are items that do not
t on the screen. Press the Up/Down arrow
keys or <Page Up> / <Page Down> keys to display the other items on the screen.
BIOS SETUP UTILITY
Suspend Mode [Auto] ACPI Version Features [Disabled] ACPI APIC support [Enabled]
APM Conguration
Hardware Monitor
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
Disabled
Enabled
Scroll bar
Pop-up window
Use [ENTER], [TAB] or [SHIFT-TAB] to select
a eld.
Use [+] or [-] to
congure system Time.
←→ Select Screen ↑↓ Select Item
+- Change Field Tab Select Field F1 General Help F10 Save and Exit ESC Exit
3.3.9 General help
At the top right corner of the menu screen is a brief description of the selected item.
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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. You can also set the system time and date and BIOS language in this menu.
Refer to 3.3.1 BIOS menu screen for information on the menu screen items and how to navigate through them.
Main Ai Tweaker Advanced Power Boot Tools Exit
System Time [13:51:25] System Date [Tue 07/07/2009] Language [English]
SATA1 [HDT722516DLA380] SATA2 [Not Detected] SATA3 [ATAPI DVD DH1] SATA4 [Not Detected] SATA5 [Not Detected] SATA6 [Not Detected]
Storage Conguration System InformationSystem Information
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
BIOS SETUP UTILITY
Use [ENTER], [TAB] or [SHIFT-TAB] to
select a eld.
Use [+] or [-] to
congure system Date.
←→ Select Screen ↑↓ Select Item
+- Change Field Tab Select Field F1 General Help F10 Save and Exit ESC Exit
3.4.1 SATA 1-6
While entering Setup, the BIOS automatically detects the presence of SATA devices. There is a separate submenu for each SATA device. Select a device item then press <Enter> to display the SATA device information.
Main
SATA 1
Device : Hard Disk Vendor : HDT722516DLA380 Size : 164.7GB LBA Mode : Supported Block Mode : 16Sectors PIO Mode : 4 Async DMA : MultiWord DMA-2 Ultra DMA : Ultra DMA-5 SMART Monitoring:Supported
Type [Auto] LBA/Large Mode [Auto] Block(Multi-Sector Transfer)M [Auto] PIO Mode [Auto] DMA Mode [Auto] SMART Monitoring [Auto] 32Bit Data Transfer [Enabled]
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
BIOS SETUP UTILITY
Select the type of device connected to the system.
←→ Select Screen ↑↓ Select Item
+- Change Field F1 General Help F10 Save and Exit ESC Exit
Chapter 3
The BIOS automatically detects the values 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.
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Type [Auto]
Allows you to select the type of SATA drive installed.
[Not Installed] Select this option if no SATA drive is installed.
[Auto] Allows automatic selection of the appropriate SATA device type.
[CDROM] Select this option if you are specically conguring a CD-ROM drive.
[ARMD] Select [ARMD] (ATAPI Removable Media Device) if your device is a ZIP,
LBA/Large Mode [Auto]
Enables or disables the LBA (Logical Block Addressing) mode.
[Auto] Select [Auto] to enable the LBA mode (Logical Block Addressing mode)
[Disabled] Disables this function.
Block (Multi-Sector Transfer) M [Auto]
Enables or disables data multi-sector transfers.
[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
PIO Mode [Auto]
Chapter 3
[Auto] Allows automatic selection of the PIO (Programmed input/output) modes,
[0] [1] [2] [3] [4] Set the PIO mode to Mode 0, 1, 2, 3, or 4.
DMA Mode [Auto]
DMA (Direct Memory Access) allows your computer to transfer data to and from the hardware devices installed with very little 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.
LS-120, or MO drive.
if the device supports this mode, and if the device was not previously formatted with LBA mode disabled.
multiple sectors at a time if the device supports the multi-sector transfer feature.
sector at a time.
which correspond to different data transfer rates.
SMART Monitoring [Auto]
[Auto] Allows automatic selection of S.M.A.R.T (Smart Monitoring, Analysis, and
[Enabled] Enables the S.M.A.R.T feature.
[Disabled] Disables the S.M.A.R.T feature.
Reporting Technology).
32Bit Data Transfer [Enabled]
[Enabled] Sets the IDE controller to combine two 16-bit reads from the hard disk
[Disabled] Disables this function.
3-10 Chapter 3: BIOS setup
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.
Page 73
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guraton [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]
Sets the conguration for the Serial ATA connectors supported by the PCH chip. Conguration options: [IDE] [RAID] [AHCI]
If you want to use the Serial ATA hard disk drives as Parallel ATA physical storage devices, keep the default setting [IDE].
If you want the Serial ATA hard disk drives to use the Advanced Host Controller Interface (AHCI), set this item to [AHCI]. 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.
If you want to create a RAID 0, RAID 1, RAID 5, RAID 10, or the Intel® Matrix Storage
Technology conguration from the Serial ATA hard disk drives, set this item to [RAID].
Hard Disk Write Protect [Disabled]
Disables or enables device write protection. This will be effective only if the device is
accessed through BIOS. Conguration options: [Disabled] [Enabled]
BIOS SETUP UTILITY
Set [Compatible Mode] when Legacy OS (i.e. WIN ME, 98, NT4.0, MS DOS) is used.
Set [Enhanced Mode] when Native OS (i.e. WIN2000, Win XP, Vista is used.
IDE Detect Time Out (Sec) [35]
Selects the time out value for detecting ATA/ATAPI devices. Conguration options: [0] [5] [10]
[15] [20] [25] [30] [35]
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 sub-menu 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]
ASUS P7P55D
BIOS SETUP UTILITY
Some SATA CD/DVD in AHCI mode need to wait ready longer.
Chapter 3
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SATA Port1–6 [XXXX]
Displays the status of auto-detection of SATA devices.
Main
SATA Port1
Device :Not Detected
SATA Port1 [Auto] SMART Monitoring [Enabled]
SATA Port1 [Auto]
Allows you to select the type of device connected to the system.
Conguration options: [Auto] [Not Installed]
SMART Monitoring [Enabled]
Allows you to set the Self-Monitoring, Analysis and Reporting Technology.
Congration options: [Disabled] [Enabled]
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 : 0153 BIOS Build Date : 06/11/09 EC BIOS Version : MBEC-0018
Chapter 3
Processor
Type : Genuine Intel(R) CPU @ 2.40GHz Speed : 2400MHz
System Memory
Usable Size : 1016MB
BIOS SETUP UTILITY
BIOS SETUP UTILITY
Select the type of devices connected to the system.
3-12 Chapter 3: BIOS setup
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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
OC Tuner Utility OC Tuner limit Value [Good Performance] 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]
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]
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
BIOS SETUP UTILITY
Press ENTER to run the utility to Tuner BCLK.
←→ Select Screen ↑↓ Select Item
Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit
Scroll down to display the following items:
Current IMC Voltage [ 1.109V]
DRAM Voltage [Auto]
Current DRAM Voltage [ 1.500V]
CPU PLL Voltage [Auto]
Current CPU PLL Voltage [ 1.800V]
PCH Voltage [Auto]
Current PCH Voltage [ 1.040V]
DRAM DATA REF Voltage on CHA [Auto] DRAM CTRL REF Voltage on CHA [Auto] DRAM DATA REF Voltage on CHB [Auto] DRAM CTRL REF Voltage on CHB [Auto]
***********************************************
Load-Line Calibration [Auto] CPU Spread Spectrum [Auto] PCIE Spread Spectrum [Auto]
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
3.5.1 OC Tuner Utility
Press the <ENTER> key to start automatic system overclocking. The OC Tuner Utility automatically adjust system parameters and reboots several times for the best overclocking result. DO NOT shut down the power before the auto-adjustment completes.
Chapter 3
3.5.2 OC Tuner limit Value [Good Performance]
Set an auto-adjustment limit value for OC Tuner Utility.
Conguration options: [Good Performance] [Better Performance] [Best Performance]
[Extreme Performance]
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3.5.3 Ai Overclock Tuner [Auto]
Allows selection of CPU overclocking options to achieve desired CPU internal frequency.
Select either one of the preset overclocking conguration options:
Manual
Auto
D.O.C.P
X.M.P.
DRAM O.C. Profile [DDR3-1600MHz]
This item appears only when you set the Ai Overclock Tuner item to [D.O.C.P.] and
allows you to select a DRAM O.C. prole, which applies different settings to DRAM
frequency, DRAM timing and DRAM voltage.
Conguration options: [DDR3-1600MHz] [DDR3-1800MHz] [DDR3-1866MHz] [DDR3­2000MHz] [DDR3-2133MHz]
Chapter 3
Allows you to individually set overclocking parameters.
Loads the optimal settings for the system.
Overclocks DRAM frequency by adjusting BCLK frequency.
If you install memory module(s) supporting the eXtreme
Memory Prole (X.M.P.) Technology, choose this item to set the prole(s) supported by your memory module(s) for optimizing
the system performance.
The conguration options for the following sub-item vary depending on the DIMMs you
install on the motherboard.
DRAM Frequency (MHz)
1333
1600
Above 1600
When using DIMMs with a frequncy higher than the Intel® CPU spec, use this ASUS
exclusive DRAM O.C. Prole function to overclock the DRAM.
Adjust BCLK frequency to obtain a better performance after applying the D.O.C.P function.
CPU Frequency (GHz)
2.66 2.8 2.93
Auto Auto Auto
D.O.C.P. Auto Auto
D.O.C.P. D.O.C.P. D.O.C.P.
eXtreme Memory Profile [High Performance]
This item appears only when you set the Ai Overclock Tuner item to [X.M.P.] and allows you to select the X.M.P. mode supported by your memory module.
Conguration options: [High Performance] [High Frequency]
To obtain the best performance of the X.M.P. DIMM or 1600MHz DIMM, install only one
DIMM on each memory channel.
3.5.4 CPU Ratio Setting [Auto]
Allows you to adjust the ratio between CPU Core Clock and BCLK Frequency. Use the <+> and <-> keys to adjust the value. The valid value ranges differently according to your CPU model.
3-14 Chapter 3: BIOS setup
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3.5.5 Intel(R) SpeedStep(TM) Tech [Enabled]
When set to [Disabled], the CPU runs at its default speed. When set to [Enabled], the CPU
speed is controlled by the operating system. Conguration options: [Disabled] [Enabled]
3.5.6 Intel(R) TurboMode Tech [Enabled]
This item appears only if you set the CPU Ratio Setting item to [Auto]. Turbo mode allows
processor cores to run faster than marked frequency in specic condition. Conguration options: [Disabled] [Enabled]
3.5.7 Xtreme Phase Full Power Mode [Auto]
This item appears only if you set the CPU Ratio Setting item to [Auto].
Conguration options: [Auto] [Disabled] [Enabled]
The following two items appear only when you set the Ai Overclock Tuner item to [Manual], [D.O.C.P.] or [X.M.P.].
BCLK Frequency [XXX]
Allows you to adjust the Internal Base Clock (BCLK). Use the <+> and <-> keys to adjust the value. You can also type the desired value using the numeric keypad. The values range from 80 to 500.
PCIE Frequency [XXX]
Allows you to set the PCI Express frequency. Use the <+> and <-> keys to adjust the PCIE frequency. The values range from 100 to 200.
3.5.8 DRAM Frequency [Auto]
Allows you to set the DDR3 operating frequency.
Conguration options: [Auto] [DDR3-800MHz] [DDR3-1066MHz] [DDR3-1333MHz]
The DRAM Frequency conguration options vary with the BCLK Frequency item
settings.
According to Intel CPU spec, CPUs with a core frequency of 2.66G support the maximum DIMM frequency of up to DDR3 1333. To use DIMMs of a higher frequency with a 2.66G CPU, enable the DRAM O.C. Prole feature in BIOS. Refer to section
3.5.3 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. DRAM Timing Control [Auto]
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 DIMMsdepending on the DIMMs you install on the motherboard.
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1st Information: 7-7-7-20-4-59-8-6-20
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] – [32 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]
Chapter 3
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-44-0
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: 6-6-14-9-9-9-7-6-4-7-7-4
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]
3-16 Chapter 3: BIOS setup
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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]
DRAM WRITE to WRITE Delay(SR) [Auto]
Conguration options: [Auto] [4 DRAM Clock] [6 DRAM Clock]
3.5.10 CPU Differential Amplitude [Auto]
Different AMP might enhance BCLK overclocking ability.
Conguration options: [Auto] [700mV] [800mV] [900mV] [1000mV]
3.5.11 CPU Clock Skew [Auto]
Adjusting this item may help enhancing BCLK overclocking ability. You may need to adjust the NB Clock Skew item at the same time.
Conguration options: [Auto] [Normal] [Delay 100ps]–[Delay 1500ps]
The following ten (10) items are adjusted by typing the desired values using the numeric keypad and press the <Enter> key. You can also use the <+> and <-> keys to adjust the value. To restore the default setting, type [auto] using the keyboard and press the <Enter> key.
3.5.12 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]
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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 1.70V with a 0.00625V interval.
3.5.13 IMC Voltage [Auto]
Allows you to set the CPU Integrated Memory Controller voltage. The values range from 1.1V to 1.7 with a 0.0125V interval.
3.5.14 DRAM Voltage [Auto]
Allows you to set the DRAM voltage. The values range from 1.5V to 2.5V* with a 0.0125V interval.
Chapter 3
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.
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. See 2. DRAM overvoltage setting 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.
3.5.15 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.
3.5.16 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.
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Blue Yellow Purple Red
IMC Voltage
DRAM Voltage
CPU PLL Voltage 1.80V–1.90V 2.00V–2.10V N/A N/A
1.10000V–
1.16875V
1.5000V–
1.5625V
1.17500V–
1.22500V
1.5750V–
1.6250V
1.23125V–
1.30000V
1.6375V–
1.6875V
1.30625V–
1.70000V
1.7000V–
2.5000V
3.5.17 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.
3.5.18 DRAM CTRL REF Voltage on CHA/B [Auto]
Allows you to set the DRAM Control 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.
3.5.19 Load-Line Calibration [Auto]
[Auto] Automatic conguration. [Disabled] Follow Intel specications.
[Enabled] Improve 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.
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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 Conguration
T.Probe [Enabled]
3.6.1 CPU Conguration
The items in this menu show the CPU-related information that the BIOS automatically detects.
Chapter 3
Advanced
Congure advanced CPU settings
Module Version:01.04
Manufacturer:Intel Brand String:Genuine Intel(R) CPU Frequency :2.66GHz BCLK Speed :133MHz Cache L1 :128 KB Cache L2 :1024 KB Cache L3 :8192 KB Ratio Status:Unlocked (Min:09, Max:20) Ratio Actual Value:20
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
Congure CPU.
←→ 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.
The items shown in this screen may be different due to the CPU you installed.
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
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 adjust the ratio between CPU Core Clock and BCLK Frequency. Use the <+> and <-> keys to adjust the value. The valid value ranges differently according to your CPU model.
C1E Support [Enabled]
[Enabled] Enables the C1E support function. This item should be enabled in order to
enable the Enhanced Halt Sate.
[Disabled] Disables this function.
Hardware Prefetcher [Enabled]
[Enabled] Enables the Hardware Prefetcher function. This item should be enabled
in order to enable the L2 cache (MLC) Streamer Prefetcher for tuning
performance of the specic application.
[Disabled] Disables this function.
Adjacent Cache Line Prefetcher [Enabled]
[Enabled] Enables the Adjacent Cache Line Prefetcher function. This item should be
enabled in order to enable the L2 cache (MLC) Spatial Prefetcher for tuning
performance of the specic application.
[Disabled] Disables this function.
Max CPUID Value Limit [Disabled]
[Enabled] Allows legacy operating systems to boot even without support for CPUs
with extended CPUID functions.
[Disabled] Disables this function.
Intel(R) Virtualization Tech [Enabled]
[Enabled] Allows a hardware platform to run multiple operating systems separately
and simultaneously, enabling one system to virtually function as several systems.
[Disabled] Disables this function.
CPU TM function [Enabled]
[Enabled] Enables the overheated CPU to throttle its clock speed to cool down.
[Disabled] Disables this function.
Execute Disable Bit [Enabled]
[Enabled] Enables the No-Execution Page Protection Technology.
[Disabled] Forces the XD feature ag to always return to zero (0).
Intel(R) HT Technology [Enabled]
[Enabled] Enables the Intel Hyper-Threading Technology.
[Disabled] Only one thread per activated CPU core is enabled.
Chapter 3
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Active Processor Cores [All]
[All] Activate all CPU cores in the processor package.
[1] Activate only 1 CPU core in the processor package.
[2] Activate 2 CPU cores in the processor package.
A20M [Disabled]
[Enabled] Legacy OSes and APs may need this function enabled.
[Disabled] Disables this function.
Intel(R) SpeedStep (TM) Tech [Enabled]
[Enabled] The CPU speed is controlled by the operating system.
[Disabled] The CPU runs at its default speed.
Intel(R) TurboMode tech [Enabled]
[Enabled] Allows processor cores to run faster than marked frequency in specic
[Disabled] Disables this function.
Intel(R) C-STATE Tech [Disabled]
[Enabled] Allows the CPU to save more power under idle mode. Enable this item only
[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
Chapter 3
supported by your CPU. Conguration options: [Auto] [C1] [C3] [C6] [C7]
condition.
when you install a C-State Technology-supported CPU.
3.6.2 North Bridge Conguration
The North Bridge menu allows you to change the advanced chipset settings.
Advanced
North Bridge Chipset Conguration
IMC Type : Havendale
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
by PCI devices to be remapped above the total physical memory.
3-22 Chapter 3: BIOS setup
BIOS SETUP UTILITY
ENABLE: Allow remapping of overlapped PCI memory above the total physical memory.
DISABLE: Do not allow remapping of memory.
Page 85
3.6.3 Onboard Device Conguration
Advanced
Onboard Devices Conguration
HDA Controller [Enabled] Front Panel Type [HD Audio] Realtek LAN [Enabled] LAN Boot ROM [Disabled] Onboard 1394 Controller [Enabled] J-Micron eSATA/PATA Controller [IDE Mode] Serial Port1 Address [3F8/IRQ4]
BIOS SETUP UTILITY
Enabled Disabled
Options
HDA Controller [Enabled]
[Enabled] Enables the High Denition Audio Controller.
[Disabled] Disables the controller.
Front Panel Type [HD Audio]
[AC97] Set the front panel audio connector (AAFP) mode to legacy AC’97 [HD Audio] Set the front panel audio connector (AAFP) mode to high-denition audio.
Realtek LAN [Enabled]
[Enabled] Enables Realtek LAN Controller.
[Disabled] Disables Realtek LAN Controller.
LAN Boot ROM [Disabled]
This item appears only when you enable the previous item(s).
[Disabled] Disables Realtek LAN Boot ROM.
[Enabled] Enables Realtek LAN Boot ROM.
Onboard 1394 Controller [Enabled]
[Enabled] Enables the onboard 1394 Controller.
[Disabled] Disables the controller.
J-Micron eSATA/PATA Controller [IDE]
[Disabled] Disables the J-Micron controller.
[IDE Mode] Set to [IDE Mode] when you want to use the Serial ATA hard disk drives as
Parallel ATA physical storage devices.
[AHCI Mode] Set to [AHCI] when you want the SATA hard disk drives to use the AHCI
(Advabced 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.
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]
Chapter 3
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3.6.4 USB Conguration
The items in this menu allows you to change the USB-related features. Select an item then
press <Enter> to display the conguration options.
Advanced
USB Conguration
Module Version - 2.24.3-13.4
USB Devices Enabled:
2 Hubs
USB Functions [Enabled] Legacy USB Support [Auto] BIOS EHCI Hand-Off [Enabled]
USB Support [Enabled]
[Enabled] Enables the USB Host Controllers.
[Disabled] Disables the controllers.
Legacy USB Support [Enabled]
[Disabled] Disables the function.
[Enabled] Enables the support for USB devices on legacy operating systems (OS).
[Auto] Allows the system to detect the presence of USB devices at startup. If
Chapter 3
BIOS EHCI Hand-off [Enabled]
[Disabled] Disables the function.
[Enabled] Enables the support for operating systems without an EHCI hand-off
BIOS SETUP UTILITY
Options
Disabled Enabled
The USB Devices Enabled item shows the auto-detected values. If no USB device is detected, the item shows None.
The following items appear only when you set USB Support to [Enabled].
detected, the USB controller legacy mode is enabled. If no USB device is detected, the legacy USB support is disabled.
feature.
3-24 Chapter 3: BIOS setup
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3.6.5 PCIPnP
The PCIPnP menu items allow you to change the advanced settings for PCI/PnP devices.
Advanced
Advanced PCI/PnP Settings
WARNING: Setting wrong values in below sections may cause system to malfunction.
Plug And Play O/S [No]
BIOS SETUP UTILITY
NO: lets the BIOS
congure all the
devices in the system.
Plug And Play O/S [No]
[Yes] When set to [Yes] and if you install a Plug and Play operating system, the
[No] When set to [No], BIOS congures all the devices in the system.
operating system congures the Plug and Play devices not required for
boot.
3.6.6 Intel VT-d Conguration [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 Functions.
[Enabled] Enables the T.Probe Functions that detect and equalize the temperature of
vCore power components.
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 [No] ACPI 2.0 Support [Disabled] ACPI APIC Support [Enabled] EuP Ready [Disabled]
APM Conguration
Hardware Monitor
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
ASUS P7P55D
BIOS SETUP UTILITY
Select the ACPI state used for System Suspend.
←→ Select Screen ↑↓ Select Item
+- Change Option F1 General Help F10 Save and Exit ESC Exit
Chapter 3
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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.
[S1 (POS) only] Sets the APCI suspend mode to S1/POS (Power On Suspend).
[S3 only] Sets the APCI suspend mode to S3/STR (Suspend To RAM).
[Auto] The system automatically congures the ACPI suspend mode.
3.7.2 Repost Video on S3 Resume [No]
Determines whether to invoke VGA BIOS POST on S3/STR resume.
[No] The system will not invoke VGA BIOS POST on S3/STR resume.
[Yes] The system invokes VGA BIOS POST on S3/STR resume.
3.7.3 ACPI 2.0 Support [Disabled]
[Disabled] When set to [Disabled], the system will not add additional tables as per
[Enabled] When set to [Enabled], the system adds additional tables as per ACPI 2.0
ACPI 2.0 specications.
specications.
3.7.4 ACPI APIC Support [Enabled]
[Disabled] When set to [Disabled], the system disable the Advanced Conguration and
[Enabled] When set to [Enabled], the ACPI APIC table pointer is included in the RSDT
Power Interface (ACPI) support in the Advanced Programmable Interrupt Controller (APIC).
pointer list.
Chapter 3
3.7.5 EuP Ready [Disabled]
[Disabled] Disables the Energy Using Products (EuP) Ready function.
[Enabled] Allows the BIOS to switch off power for WOL, WO_USB, audio, and
onboard LEDs at S5 state to get the system ready for the EuP requirement.
3-26 Chapter 3: BIOS setup
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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 External Modems [Disalbed] Power On By PCI Devices [Disabled] Power On By PCIE Devices [Disabled] Power On By PS/2 Keyboard [Disabled] PS/2 Keyboard [Disabled] Power On By PS/2 Mouse [Disabled] PS/2 Mouse [Disabled]
BIOS SETUP UTILITY
<Enter> to select whether or not to restart the system after AC power loss.
Restore On AC Power Loss [Power Off]
[Power Off] The system goes into off state after an AC power loss.
[Power On] The system goes into on state after an AC power loss.
[Last State] The system goes into either off or on state, whatever the system state was
before the AC power loss.
Power On By RTC Alarm [Disabled]
[Disabled] Disables RTC to generate a wake event. [Enabled] When set to [Enabled], the items RTC Alarm Date (Days) / System Time
will become user-congurable with set values.
Power On By External Modems [Disabled]
[Disabled] Disables to power up the computer when the external modem receives a
[Enabled] The computer could be powered up when the external modem receives a
call while the computer is in Soft-off mode.
call while the computer is in Soft-off mode.
The computer cannot receive or transmit data until the computer and applications are fully
running. Thus, connection cannot be made on the 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]
Allows you to enable or disable the PCIE devices to generate a wake event.
[Disabled] Disables the PCIE devices to generate a wake event.
[Enabled] Enables the PCIE devices to generate a wake event.
Power On By PS/2 Keyboard [Disabled]
[Disabled] Disables the Power On by a PS/2 keyboard.
[Enabled] Sets 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.
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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
3.7.7 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]
CPU/MB Temperature [xxxºC/xxxºF][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]
Chapter 3
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 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.
power supply that provides at least 1A on the +5VSB lead.
BIOS SETUP UTILITY
CPU Temperature(PECI)
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
[Silent] Sets to [Silent] to minimize the fan speed for quiet CPU fan operation.
[Turbo] Set to [Turbo] to achieve maximum CPU fan speed.
3-28 Chapter 3: BIOS setup
the CPU temperature.
Page 91
Chassis Q-Fan Control [Disabled]
[Disabled] Disables the Chassis Q-Fan control feature.
[Enabled] Enables the Chassis Q-Fan control feature.
Chassis Fan Profile [Standard]
This item appears only when you enable the Chassis Q-Fan Control feature and allows you to set the appropriate performance level of the chassis fan.
[Standard] Sets to [Standard] to make the chassis fan automatically adjust depending
on the chassis temperature.
[Silent] Sets to [Silent] to minimize the fan speed for quiet chassis fan operation.
[Turbo] Set 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
BIOS SETUP UTILITY
Species the Boot
Device Priority sequence.
A virtual oppy disk
drive (Floppy Drive B: ) may appear when you set the CD-ROM drive
as the rst boot
device.
←→ Select Screen ↑↓ Select Item
Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit
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]
ASUS P7P55D
BIOS SETUP UTILITY
Species the boot
sequence from the available devices.
Chapter 3
3-29
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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
Full Screen Logo [Enabled]
[Disabled] Disables the full screen logo display feature.
[Enabled] Enables the full screen logo display 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
Chapter 3
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.
BIOS SETUP UTILITY
Allows BIOS to skip certain tests while booting. This will decrease the time needed to boot the system.
booting to decrease the time needed to boot the system.
Set this item to [Enabled] to use the ASUS MyLogo 2™ feature.
sequence.
manufacturer had set the add-on device to do so.
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3.8.3 Security
The Security menu items allow you to change the system security settings. Select an item
then press <Enter> to display the 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 Change Supervisor Password item and press <Enter>.
2. In the password box, key in a password containing up to six letters or numbers, or both,
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.
If you forget 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.
BIOS SETUP UTILITY
<Enter> to change password. <Enter> again to disable password.
After you have set a supervisor password, the other items appear to allow you to change other security settings.
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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]
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.
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 Change User Password item and press <Enter>.
2. In the password box, key in a password containing up to six letters or numbers, orIn the password box, key in a password containing up to six letters or numbers, or
both, then press <Enter>.
3. Conrm the password when prompted.
Chapter 3
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.
BIOS SETUP UTILITY
<Enter> to change password. <Enter> again to disabled password.
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
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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
AI NET 2
ASUS EZ Flash 2 Express Gate [Auto] Enter OS Timer [10 Seconds] Reset User Data [No]
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
3.9.1 ASUS O.C. Prole
This item allows you to store or load multiple BIOS settings.
Tools
O.C. PROFILE Conguration
O.C. Prole 1 Status : Not Installed O.C. Prole 2 Status : Not Installed O.C. Prole 3 Status : Not Installed O.C. Prole 4 Status : Not Installed O.C. Prole 5 Status : Not Installed O.C. Prole 6 Status : Not Installed O.C. Prole 7 Status : Not Installed O.C. Prole 8 Status : Not Installed
Status:
Add Your CMOS Prole.
Name: [Default-Prole]
Save To: [Uninstalled]
Load CMOS Proles.
Load From: [Blank]
Start O.C. Prole
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
BIOS SETUP UTILITY
BIOS SETUP UTILITY
←→ Select Screen ↑↓ Select Item
Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit
Typing your prole
name, [0-9][a-z][A-Z] are acceptable.
←→ Select Screen ↑↓ Select Item
F1 General Help F10 Save and Exit ESC Exit
Chapter 3
Add Your CMOS Prole
Allows you to save the current BIOS le to the BIOS Flash. In the Name sub-item, type 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>, and
choose a prole to load.
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 V4.00a
3.9.2 AI NET 2
Chapter 3
Tools
AI NET 2 Pair Status Length
Check Realtek LAN cable [Disabled]
Current CMOS
BOARD: P7P55D VER: 0157 DATE: 06/19/2009
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.
BIOS SETUP UTILITY
Check Realtek LAN cable during POST.
It will take 3 to 10 seconds to diagnose LAN cable.
Check Realtek LAN Cable [Disabled]
[Disabled] BIOS will not check the Realtek LAN cable during the Power-On Self-Test
[Enabled] BIOS checks the Realtek LAN cable during the Power-On Self-Test
(POST).
(POST).
3.9.3 ASUS EZ Flash 2
Allows you to run ASUS EZ Flash 2. When you press <Enter>, a conrmation message
appears. Use the left/right arrow key to select between [Yes] or [No], then press <Enter> to conrm your choice. Check section 3.2.2 ASUS EZ Flash 2 utility for details.
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3.9.4 Express Gate [Auto]
Allows you to enable or disable the ASUS Express Gate feature. The ASUS Express Gate feature is a unique instant-on environment that provides quick access to the Internet browser
and Skype. 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][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] Set to [No] to disable the Reset User Data function when entering the
BIOS so that the user data will be cleared the next time you enter the
Express Gate. User data includes the Express Gate’s settings as well as
any personal information stored by the web browser such as bookmarks, cookies, browsing history. This is useful in the rare case where corrupt settings prevent the Express Gate environment from launching properly.
Express Gate.
The rst time wizard will run again when you enter the Express Gate environment after
clearing its settings.
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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 Options
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® XP Service Pack 2 or later versions before 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.
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
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
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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 support DVD icon.
2. The support DVD contents are displayed in graphical format. Double-click the Manual folder.
3. Double-click the folder of your selected 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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