Asus P5QD Turbo User manual

Motherboard
P5QD Turbo

ii
E4875
First Edition (V1)
July 2009
Copyright © 2009 ASUSTeK COMPUTER INC. All Rights Reserved.
No part of this manual, including the products and software described in it, may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any
means, except documentation kept by the purchaser for backup purposes, without the express written
permission of ASUSTeK COMPUTER INC. (“ASUS”).
Product warranty or service will not be extended if: (1) the product is repaired, modied or altered, unless
such repair, modication of alteration is authorized in writing by ASUS; or (2) the serial number of the
product is defaced or missing.
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS
DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS,
LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE),
EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY
DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR
INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE,
AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO
RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS
MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.
Products and corporate names appearing in this manual may or may not be registered trademarks or
copyrights of their respective companies, and are used only for identication or explanation and to the
owners’ benet, without intent to infringe.

iii
Contents
Contents...................................................................................................................... iii
Notices ...................................................................................................................... vii
Safety information.................................................................................................... viii
About this guide......................................................................................................... ix
P5QD Turbo 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 special features ................................................................1-2
1.3.3 ASUS exclusive overclocking 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 ...................................................................... 2-17
2.4.4 Removing a DIMM .................................................................... 2-17
2.5 Expansion slots........................................................................................ 2-18
2.5.1 Installing an expansion card...................................................... 2-18
2.5.2 Conguring an expansion card ................................................. 2-18
2.5.3 Interrupt assignments................................................................ 2-19
2.5.4 PCI slots.................................................................................... 2-20
2.5.5 PCI Express x1 slots................................................................. 2-20
2.5.6 PCI Express 2.0 x16 slot (blue)................................................. 2-20
2.6 Jumpers ....................................................................................................2-21
2.7 Connectors ............................................................................................... 2-24
2.7.1 Rear panel connectors.............................................................. 2-24

iv
Contents
2.7.2 Audio I/O connections............................................................... 2-25
2.7.3 Internal connectors.................................................................... 2-28
2.8 Starting up for the rst time.................................................................... 2-39
2.9 Turning off the computer......................................................................... 2-39
Chapter 3: BIOS setup
3.1 Knowing BIOS ............................................................................................ 3-1
3.2 Updating BIOS............................................................................................ 3-1
3.2.1 ASUS Update utility..................................................................... 3-2
3.2.2 ASUS EZ Flash 2 utility............................................................... 3-4
3.2.3 ASUS CrashFree BIOS 3 utility................................................... 3-5
3.3 BIOS setup program .................................................................................. 3-6
3.3.1 BIOS menu screen...................................................................... 3-6
3.3.2 Menu bar ..................................................................................... 3-6
3.3.3 Navigation keys........................................................................... 3-7
3.3.4 Menu items.................................................................................. 3-7
3.3.5 Submenu items ........................................................................... 3-7
3.3.6 Conguration elds ..................................................................... 3-7
3.3.7 Pop-up window............................................................................ 3-7
3.3.8 Scroll bar ..................................................................................... 3-7
3.3.9 General help................................................................................ 3-7
3.4 Main menu ..................................................................................................3-8
3.4.1 SATA 1-5; SATA_E1 .................................................................... 3-8
3.4.2 Storage Conguration ............................................................... 3-10
3.4.3 AHCI Conguration ................................................................... 3-11
3.4.4 System Information ................................................................... 3-11
3.5 Ai Tweaker menu...................................................................................... 3-12
3.5.1 Ai Overclock Tuner [Auto] ......................................................... 3-12
3.5.2 CPU Ratio Setting [Auto]........................................................... 3-13
3.5.3 FSB Frequency [XXX]............................................................... 3-13
3.5.4 PCIE Frequency [XXX].............................................................. 3-13
3.5.5 FSB Strap to North Bridge [Auto].............................................. 3-13
3.5.6 DRAM Frequency [Auto] ........................................................... 3-13
3.5.7 DRAM Timing Control [Auto]..................................................... 3-13
3.5.8 DRAM Static Read Control [Auto]............................................. 3-15
3.5.9 DRAM Read Training [Auto]...................................................... 3-15
3.5.10 MEM. OC Charger [Auto].......................................................... 3-15
3.5.11 Ai Clock Twister [Auto] ..............................................................3-15
3.5.12 Ai Transaction Booster [Auto].................................................... 3-15

v
3.5.13 CPU Voltage [Auto] ...................................................................3-16
3.5.14 CPU GTL Reference [Auto]....................................................... 3-16
3.5.15 CPU PLL Voltage [Auto]............................................................ 3-16
3.5.16 FSB Termination Voltage [Auto] ................................................3-16
3.5.17 DRAM Voltage [Auto] ................................................................3-16
3.5.18 NB Voltage [Auto]...................................................................... 3-16
3.5.19 SB Voltage [Auto]...................................................................... 3-17
3.5.20 PCIE SATA Voltage [Auto]......................................................... 3-17
3.5.21 Load-Line Calibration [Auto]...................................................... 3-17
3.5.22 CPU Spread Spectrum [Auto] ................................................... 3-17
3.5.23 PCIE Spread Spectrum [Auto] .................................................. 3-17
3.5.24 CPU Clock Skew [Auto] ............................................................ 3-17
3.5.25 NB Clock Skew [Auto]............................................................... 3-17
3.5.26 CPU Margin Enhancement [Optimized] .................................... 3-17
3.6 Advanced menu ....................................................................................... 3-18
3.6.1 CPU Conguration .................................................................... 3-18
3.6.2 Chipset ...................................................................................... 3-20
3.6.3 Onboard Devices Conguration................................................ 3-21
3.6.4 USB Conguration .................................................................... 3-22
3.6.5 PCIPnP ..................................................................................... 3-23
3.7 Power menu.............................................................................................. 3-24
3.7.1 Suspend Mode [Auto]................................................................ 3-24
3.7.2 Repost Video on S3 Resume [No] ............................................ 3-24
3.7.3 ACPI 2.0 Support [Disabled] ..................................................... 3-24
3.7.4 ACPI APIC Support [Enabled]................................................... 3-24
3.7.5 APM Conguration.................................................................... 3-25
3.7.6 Hardware Monitor...................................................................... 3-26
3.8 Boot menu ................................................................................................3-27
3.8.1 Boot Device Priority................................................................... 3-27
3.8.2 Boot Settings Conguration ...................................................... 3-28
3.8.3 Security ..................................................................................... 3-29
3.9 Tools menu ............................................................................................... 3-31
3.9.1 ASUS EZ Flash 2...................................................................... 3-31
3.9.2 Drive Xpert Mode Update [Last Setting].................................... 3-32
3.9.3 Express Gate [Enabled] ............................................................ 3-33
3.9.4 ASUS O.C. Prole..................................................................... 3-34
3.9.5 AI NET 2.................................................................................... 3-35
3.10 Exit menu..................................................................................................3-36
Contents

vi
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 EPU .................................................................................. 4-5
4.3.4 ASUS Fan Xpert.......................................................................... 4-6
4.3.5 ASUS TurboV.............................................................................. 4-7
4.3.6 ASUS Turbo Key ......................................................................... 4-8
4.3.7 ASUS Drive Xpert ....................................................................... 4-9
4.3.8 ASUS Express Gate.................................................................. 4-10
4.3.9 Audio congurations.................................................................. 4-11
4.4 RAID congurations ................................................................................ 4-12
4.4.1 RAID denitions ........................................................................ 4-12
4.4.2 Installing Serial ATA hard disks ................................................. 4-12
4.4.3 Setting the RAID item in BIOS .................................................. 4-13
4.4.4 Intel®Matrix Storage Manager option ROM utility..................... 4-13
4.5 Creating a RAID driver disk..................................................................... 4-17
4.5.1 Creating a RAID driver disk without entering the OS................ 4-17
4.5.2 Creating a RAID driver disk in Windows®.................................. 4-17
4.5.3 Using a USB oppy disk drive................................................... 4-19
Contents

vii
Notices
Federal Communications Commission Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
• This device may not cause harmful interference, and
• This device must accept any interference received including interference that may cause
undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with manufacturer’s instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur
in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment to an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise emissions from
digital apparatus set out in the Radio Interference Regulations of the Canadian Department
of Communications.
This class B digital apparatus complies with Canadian ICES-003.
The use of shielded cables for connection of the monitor to the graphics card is required
to assure compliance with FCC regulations. Changes or modications to this unit not
expressly approved by the party responsible for compliance could void the user’s authority
to operate this equipment.
REACH
Complying with the REACH (Registration, Evaluation, Authorisation, and Restriction of
Chemicals) regulatory framework, we published the chemical substances in our products at
ASUS REACH website at http://green.asus.com/english/REACH.htm.
DO NOT throw the motherboard in municipal waste. This product has been designed to
enable proper reuse of parts and recycling. This symbol of the crossed out wheeled bin
indicates that the product (electrical and electronic equipment) should not be placed in
municipal waste. Check local regulations for disposal of electronic products.
DO NOT throw the mercury-containing button cell battery in municipal waste. This symbol
of the crossed out wheeled bin indicates that the battery should not be placed in municipal
waste.

viii
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.
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.
• Never dispose of the battery in re. It could explode and release harmful substances into
the environment.
• Never dispose of the battery with your regular household waste. Take it to a hazardous
material collection point.
• Never replace the battery with an incorrect battery type.
• RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.
• DISPOSE OF USED BATTERIES ACCORDING TO THE ABOVE BATTERY-RELATED
INSTRUCTIONS.

ix
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.
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.

x
Conventions used in this guide
To ensure that you perform certain tasks properly, take note of the following symbols used
throughout this manual.
Typography
Bold text Indicates a menu or an item to select.
Italic s Used to emphasize a word or a phrase.
<Key> Keys enclosed in the less-than and greater-than sign means
that you must press the enclosed key.
Example: <Enter> means that you must press the Enter or
Return key.
<Key1> + <Key2> + <Key3> If you must press two or more keys simultaneously, the key
names are linked with a plus sign (+).
Example: <Ctrl> + <Alt> + <Del>
Command Means that you must type the command exactly as shown, then
supply the required item or value enclosed in brackets.
Example: At the DOS prompt, type the command line:
afudos /iP5QDT.ROM
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.

xi
P5QD Turbo specications summary
(continued on the next page)
CPU LGA775 socket for Intel®Core™2 Extreme /
Core™2 Quad / Core™2 Duo / Pentium®dual-core /
Celeron®dual-core / Celeron®processors
Supports Intel®45nm multi-core CPUs
Chipset Intel®P45 / ICH10R with Intel®Fast Memory Access (FMA)
Technology
System bus 1600 / 1333 / 1066 / 800 MHz
Memory 4 x DIMM, max. 16 GB, DDR2 1300 / 1200 / 1066 / 800 / 667 MHz,
non-ECC, un-buffered memory
Dual channel memory architecture
* Refer to www.asus.com or user manual for the Memory QVL
(Qualied Vendors Lists).
** When you install a total memory of 4 GB capacity or more,
Windows® 32-bit operating system may only recognize less
than 3 GB. We recommend using a maximum of 3 GB system
memory if you are using a Windows®32-bit OS.
Expansion slots 1 x PCI Express 2.0 x16 slot
3 x PCI Express x1 slots
2 x PCI slots
Storage Intel®ICH10R Southbridge:
- 5 x SATA 3.0 Gb/s ports
- Intel®Matrix Storage Technology with RAID 0, 1, 5, and 10
support
JMicron®JMB361 SATA and PATA controller:
- 1 x UltraDMA 133 / 100 / 66 for up to 2 PATA devices
- 1 x External SATA 3.0 Gb/s port (SATA On-the-Go)
Silicon Image®Sil5723 controller (Drive Xpert technology):
- 2 x SATA 3.0 Gb/s ports
- Supports EZ Backup and Super Speed functions
* Drive Xpert function is available only when the hard disk dirves
are set as data drives.
LAN Atheros®L1E Gigabit LAN controller featuring AI NET 2
Audio VIA® VT1708S 8-channel High Denition Audio CODEC
- Supports Jack-Detection and Multi-Streaming
- Optical S/PDIF Out port at back I/O
- ASUS Noise Filter
IEEE 1394 VIA® VT6315N controller supports 2 x IEEE 1394a ports
(one at midboard; one at back panel)
USB 12 x USB 2.0/1.1 ports (6 ports at midboard; 6 ports at back panel)

xii
(continued on the next page)
P5QD Turbo specications summary
ASUS special features ASUS Exclusive Features:
- ASUS 8-Phase Power Design
- ASUS Express Gate
ASUS Power Saving Solutions:
- ASUS EPU
ASUS Quiet Thermal Solutions:
- ASUS Fanless Design: Stylish heatsink solution
- ASUS Fan Xpert
ASUS EZ DIY
- ASUS Drive Xpert
- ASUS CrashFree BIOS 3
- ASUS Q-Shield
- ASUS Q-Connector
- ASUS O.C. Prole
- ASUS EZ Flash 2
Other features 100% High-quality conductive polymer capacitors
2oz Copper PCB
ASUS MyLogo 2™
ASUS exclusive
overclocking features
Intelligent overclocking tools:
- AI Overclocking (intelligent CPU frequency tuner)
- TurboV
- Turbo Key
Precision Tweaker 2:
- vCore: Adjustable CPU voltage at 0.00625V increment
- vDIMM: 64-step DRAM voltage control
- vChipset: 55-step chipset voltage control
- vCPU PLL: 64-step CPU PLL voltage control
- vFSB Termination: 35-step reference voltage control
SFS (Stepless Frequency Selection):
- FSB tuning from 200 MHz up to 800 MHz at 1 MHz increment
- PCI Express frequency tuning from 100 MHz to 180 MHz
at 1 MHz increment
Overclocking protection:
- ASUS C.P.R. (CPU Parameter Recall)
Back panel I/O ports 1 x PS/2 keyboard port (purple)
1 x PS/2 mouse port (green)
1 x Optical S/PDIF Out port
1 x IEEE 1394a port
1 x External SATA port
1 x LAN (RJ-45) port
6 x USB 2.0/1.1 ports
8-channel Audio I/O ports

xiii
*Specications are subject to change without notice.
P5QD Turbo specications summary
Internal I/O connectors 3 x USB connectors support additional 6 USB ports
1 x IDE connector
1 x COM connector
5 x SATA connectors (red)
2 x Drive Xpert SATA connectors (orange and white)
1 x CPU Fan connector
2 x Chassis Fan connectors
1 x Power Fan connector
1 x IEEE1394a connector
Front panel audio connector
1 x S/PDIF Out header
Chassis Intrusion connector
CD audio in
24-pin ATX Power connector
8-pin ATX 12V Power connector
System Panel (Q-Connector)
BIOS features 8 Mb AMI BIOS, PnP, DMI 2.0, WfM 2.0, SM BIOS 2.5, ACPI 3.0,
ASUS EZ Flash 2, ASUS CrashFree BIOS 3
Manageability WOL by PME, WOR by PME, WOR by Ring, PXE
Support DVD contents Drivers
Express Gate
ASUS PC Probe II
ASUS Update
ASUS AI Suite
Anti-virus software (OEM version)
Form factor ATX form factor: 12 in. x 9.2 in. (30.5 cm x 23.4 cm)

xiv

ASUS P5QD Turbo 1-1
Chapter 1
1.1 Welcome!
Thank you for buying an ASUS®P5QD Turbo motherboard!
The motherboard delivers a host of new features and latest technologies, making it another
standout in the long line of ASUS quality motherboards!
Before you start installing the motherboard, and hardware devices on it, check the items in
your package with the list below.
1.2 Package contents
Check your motherboard package for the following items.
• If any of the above items is damaged or missing, contact your retailer.
• The illustrated items above are for reference only. Actual product specications may
vary with different models.
Chapter 1: Product introduction
Chapter 1
User Manual
ASUS P5QD Turbo
motherboard User guide Support DVD
4 x Serial ATA signal cables 1 x Ultra DMA 133/
100/66 cable 1 x ASUS Q-Shield
1 x ASUS Q-Connector kit

1-2 Chapter 1: Product Introduction
Chapter 1
1.3 Special features
1.3.1 Product highlights
LGA775 Intel®Core™2 Processor Ready
This motherboard supports the latest Intel®Core™2 processors in the LGA775 package. It
also supports Intel®45nm multi-core CPUs. With the new Intel®Core™ microarchitecture and
1600 / 1333 / 1066 / 800 MHz FSB, Intel®Core™2 processor is one of the most powerful and
energy efcient CPU in the world.
Intel®P45 Chipset
The Intel® P45 Chipset supports dual-channel DDR2 800/667 MHz memory architecture,
1333/1066/800 MHz FSB (Front Side Bus), PCIe 2.0, and multi-core CPUs. It especially
includes Intel® Fast Memory Access technology that signicantly optimizes the use of available
memory bandwidth and reduces the latency of the memory accesses.
Dual-Channel DDR2 1300 support
The motherboard supports DDR2 memory that features data transfer rates of 1300 /1200
/ 1066 / 800 / 667 MHz to meet the higher bandwidth requirements of the latest operation
system, 3D graphics, multimedia, and Internet applications. The dual-channel DDR2
architecture doubles the bandwidth of your system memory to boost system performance,
eliminating bottlenecks with peak bandwidths of up to 20.8 GB/s.
100% high-quality conductive polymer capacitors
This motherboard uses all high-quality conductive polymer capacitors for durability, improved
lifespan, and enhanced thermal capacity.
Green ASUS
This motherboard and its packaging comply with the European Union’s Restriction on the
use of Hazardous Substances (RoHS). This is in line with the ASUS vision of creating
environment-friendly and recyclable products/packaging to safeguard consumers’ health
while minimizing the impact on the environment.
1.3.2 ASUS special features
ASUS 8-Phase Power Design
With power efciency so important to operating temperatures, ASUS 8-Phase VRM design
leads the industry with its 96% power efciency. High quality power components such as low
RDS (on) MOSFETs for minimum switching loss & lower temperatures, Ferrite core chokes
with lower hysteresis loss, and high quality Japanese-made conductive polymer capacitors
all add up to ensure longer component life and lower power loss—creating more energy
efciency.

ASUS P5QD Turbo 1-3
Chapter 1
Express Gate
Taking only 5 seconds to bootup, Express Gate is the one-stop gateway to instant fun! It’s a
unique motherboard built-in OS. You can utilize the most popular Instant Messengers (IM)
like MSN, Skype, Google talk, QQ, and Yahoo! Messenger to keep in touch with friends,
or quickly check on the weather and e-mails just before leaving your house. What’s more,
the user-friendly picture manager lets you view your pictures without entering Windows at
anytime!
The actual boot time is subject to hardware congurations and product models.
ASUS Power Saving Solution
ASUS Power Saving solution intelligently and automatically provides balanced computing
power and energy consumption.
ASUS EPU
The ASUS EPU (Energy Processing Unit) provides total system power management by
detecting current PC loadings and intelligently moderating power usage for critical PC
components in real-time–helping save power and money!
ASUS Quiet Thermal Solutions
ASUS Quiet Thermal solutions make the system more stable and enhance the overclocking
capability.
Fanless Design—Unique stylish heatsink
The brand new 2-color heatsink features 0-dB thermal solution that offers users a
noiseless PC environment. The Paten Pending 2-color design within the beautifully
curved ns upgrades the visual enjoyment for the motherboard users, and also
effectively cools down hot airows generated by the north bridge chipset. Combined
with usability and aesthetics, the ASUS Patent 2-color Wing heatsink will give users an
extremely silent and cooling experience with the elegant appearance!
Fan Xpert
ASUS Fan Xpert intelligently allows you to adjust both the CPU and chassis fan speeds
according to different ambient temperatures caused by different climate conditions
in different geographic regions and your PC’s loading. The built-in variety of useful
proles offer exible controls of fan speed to achieve a quiet and cool environment.
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 Drive Xpert
Without drivers or BIOS setups, the ASUS exclusive Drive Xpert is ideal for anyone
who needs to secure data on their hard drives or enhance hard drive performances
without the hassles of complicated congurations. With Drive Xpert’s user-friendly
graphical user interface, you can easily arrange hard drive backups or enhance their
hard drive transfer rates - ensuring that data is looked after every moment, every day.

1-4 Chapter 1: Product Introduction
Chapter 1
1.3.3 ASUS exclusive overclocking features
TurboV
Feel the adrenaline rush of real-time OC—now a reality with the ASUS TurboV. This easy OC
tool allows you to overclock without exiting or rebooting the OS; and its user-friendly interface
makes overclock with just a few clicks away. Moreover, the ASUS OC proles in TurboV
provides the best O.C. settings in different scenarios.
Turbo Key
ASUS Turbo Key allows you to turn the PC power button into a physical overclocking button.
After the easy setup, Turbo Key can boost performances without interrupting ongoing work or
games, simply through pressing the button
Precision Tweaker 2
Allows you to adjust the CPU voltage in 0.00625v steps and NB/DRAM voltage in 0.02v
steps to ne-tune voltage to achieve the most precise setting for the ultimate overclocking
conguration.
C.P.R. (CPU Parameter Recall)
The BIOS C.P.R. feature automatically restores the CPU default settings when the system
hangs due to overclocking failure. C.P.R. eliminates the need to open the system chassis and
clear the RTC data. Simply shut down and reboot the system, and the BIOS automatically
restores the CPU parameters to their default settings.
ASUS CrashFree BIOS 3
ASUS CrashFree BIOS 3 allows you to restore corrupted BIOS data from a USB ash
disk containing the BIOS le. This protection eliminates the need to buy a replacement
ROM chip.
ASUS Q-Shield
ASUS Q-Shield’s special design makes it convenient and easy to install on your
motherboard. With better electric conductivity, it ideally protects your motherboard
against static electricity and shields it against Electronic Magnetic Interference (EMI).
ASUS Q-Connector
ASUS Q-Connector allows you to easily connect or disconnect the chassis front panel
cables to the motherboard. This unique module eliminates the trouble of connecting the
system panel cables one at a time and avoiding wrong cable connections.
ASUS EZ Flash 2
ASUS EZ Flash 2 is a user-friendly utility that allows you to update the BIOS without
using a bootable oppy disk or an OS-based utility.
ASUS O.C. Prole
The motherboard features the ASUS O.C. Prole that allows you to conveniently store
or load multiple BIOS settings. The BIOS settings can be stored in the CMOS or a
separate le, giving you the freedom to share and distribute your favorite settings.

ASUS P5QD Turbo 2-1
Chapter 2
2.1 Before you proceed
Take note of the following precautions before you install motherboard components or change
any motherboard settings.
• Unplug the power cord from the wall socket before touching any component.
• Before handling components, use a grounded wrist strap or touch a safely grounded
object or a metal object, such as the power supply case, to avoid damaging them due
to static electricity.
• Hold components by the edges to avoid touching the ICs on them.
• Whenever you uninstall any component, place it on a grounded antistatic pad or in the
bag that came with the component.
• Before you install or remove any component, ensure that the ATX power supply is
switched off or the power cord is detached from the power supply. Failure to do so
may cause severe damage to the motherboard, peripherals, or components.
Chapter 2: Hardware information
Chapter 2
Onboard LED
The motherboard comes with a standby power LED. The green LED 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.

2-2 Chapter 2: Hardware information
Chapter 2
2.2.1 Motherboard layout
Refer to 2.7 Connectors for more information about rear panel connectors and internal
connectors.
2.2 Motherboard overview