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P8Z68-V LX
Motherboard
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E6771
First Edition (V1)
July 2011
Copyright © 2011 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, modied or altered, unless
such repair, modication of alteration is authorized in writing by ASUS; or (2) the serial number of the
product is defaced or missing.
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS
DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL,
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Offer to Provide Source Code of Certain Software
This product may contain copyrighted software that is licensed under the General Public License (“GPL”)
and under the Lesser General Public License Version (“LGPL”). The GPL and LGPL licensed code in this
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You may obtain the complete corresponding source code (as dened in the GPL) for the GPL Software,
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including the GPL Software and/or LGPL Software, which will be no earlier than December 1, 2011, either
(1) for free by downloading it from http://support.asus.com/download;
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In your request please provide the name, model number and version, as stated in the About Box of the
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The source code will be distributed WITHOUT ANY WARRANTY and licensed under the same license as
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This offer is valid to anyone in receipt of this information.
ASUSTeK is eager to duly provide complete source code as required under various Free Open Source
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we would be much obliged if you give us a notication to the email address gpl@asus.com, stating the
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etc to this email address).
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Contents
Notices ......................................................................................................... vi
Safety information ..................................................................................... vii
About this guide ....................................................................................... viii
P8Z68-V LX specications summary ........................................................ ix
Chapter 1: Product introduction
1.1 Welcome! ...................................................................................... 1-1
1.2 Package contents ......................................................................... 1-1
1.3 Special features ............................................................................ 1-1
1.3.1 Product highlights ........................................................... 1-1
1.3.2 Innovative ASUS features ............................................... 1-4
1.3.3 Intel® Smart Response Technology & LucidLogix® VirtuTM
Solution ...........................................................1-6
1.4 Before you proceed ..................................................................... 1-9
1.5 Motherboard overview ............................................................... 1-10
1.5.1 Placement direction ...................................................... 1-10
1.5.2 Screw holes .................................................................. 1-10
1.5.3 Motherboard layout ........................................................1-11
1.5.4 Layout contents ..............................................................1-11
1.6 Central Processing Unit (CPU) ................................................. 1-12
1.6.1 Installing the CPU ......................................................... 1-12
1.6.2 Installing the CPU heatsink and fan .............................. 1-15
1.6.3 Uninstalling the CPU heatsink and fan ......................... 1-16
1.7 System memory ......................................................................... 1-17
1.7.1 Overview ....................................................................... 1-17
1.7.2 Memory congurations .................................................. 1-19
1.7.3 Installing a DIMM .......................................................... 1-24
1.7.4 Removing a DIMM ........................................................ 1-24
1.8 Expansion slots .......................................................................... 1-25
1.8.1 Installing an expansion card ......................................... 1-25
1.8.2 Conguring an expansion card ..................................... 1-25
1.8.3 PCI Express 2.0 x1 slots ............................................... 1-25
1.8.4 PCI Express 2.0 x16 slots ............................................. 1-25
1.8.5 PCI slots ........................................................................ 1-25
1.9 Jumpers ...................................................................................... 1-26
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Contents
1.10 Connectors ................................................................................. 1-27
1.10.1 Rear panel connectors .................................................. 1-27
1.10.2 Internal connectors ....................................................... 1-29
1.11 Onboard switches ...................................................................... 1-35
1.12 Onboard LEDs ............................................................................ 1-36
1.13 Software support ........................................................................ 1-38
1.13.1 Installing an operating system ...................................... 1-38
1.13.2 Support DVD information .............................................. 1-38
Chapter 2: BIOS information
2.1 Managing and updating your BIOS ............................................ 2-1
2.1.1 ASUS Update utility ........................................................ 2-1
2.1.2 ASUS EZ Flash 2 ............................................................ 2-2
2.1.3 ASUS CrashFree BIOS 3 utility ...................................... 2-3
2.1.4 ASUS BIOS Updater ....................................................... 2-4
2.2 BIOS setup program .................................................................... 2-7
2.3 Main menu .................................................................................. 2-11
2.3.1 System Language [English] ...........................................2-11
2.3.2 System Date [Day xx/xx/xxxx] ........................................2-11
2.3.3 System Time [xx:xx:xx] ..................................................2-11
2.3.4 Security ..........................................................................2-11
2.4 Ai Tweaker menu ........................................................................ 2-13
2.4.1 Ai Overclock Tuner [Auto] ............................................. 2-14
2.4.2 Turbo Ratio [By All Cores] ............................................. 2-14
2.4.3 Internal PLL Overvoltage [Auto] .................................... 2-14
2.4.4 Memory Frequency [Auto] ............................................. 2-14
2.4.5 iGPU Max. Frequency [Auto] ........................................ 2-14
2.4.6 EPU Power Saving Mode [Disabled] ............................ 2-15
2.4.7 OC Tuner ...................................................................... 2-15
2.4.8 DRAM Timing Control ................................................... 2-15
2.4.9 CPU Power Management ............................................. 2-15
2.4.10 iGPU Offset Mode Sign [+] ............................................ 2-16
2.4.11 DRAM Voltage [Auto] .................................................... 2-16
2.4.12 VCCIO Voltage [Auto] ................................................... 2-16
2.4.13 PCH Voltage [Auto] ....................................................... 2-16
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Contents
2.4.14 Load-Line Calibration [Auto] ......................................... 2-17
2.4.15 CPU Spread Spectrum [Auto] ....................................... 2-17
2.5 Advanced menu ......................................................................... 2-17
2.5.1 CPU Conguration ........................................................ 2-18
2.5.2 System Agent Conguration ......................................... 2-19
2.5.3 PCH Conguration ........................................................ 2-19
2.5.4 SATA Conguration ....................................................... 2-19
2.5.5 USB Conguration ........................................................ 2-20
2.5.6 Onboard Devices Conguration .................................... 2-20
2.5.7 APM .............................................................................. 2-22
2.6 Monitor menu ............................................................................. 2-23
2.6.1 CPU Temperature / MB Temperature [xxxºC/xxxºF] ...... 2-24
2.6.2 CPU / Chassis / Power Fan Speed ............................... 2-24
2.6.3 CPU Q-Fan Control [Enabled] ...................................... 2-24
2.6.4 Chassis Q-Fan Control [Enabled] ................................. 2-25
2.6.5 CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage .. 2-25
2.6.6 Anti Surge Support [Enabled] ....................................... 2-25
2.7 Boot menu .................................................................................. 2-26
2.7.1 Bootup NumLock State [On] ......................................... 2-26
2.7.2 Full Screen Logo [Enabled] ........................................... 2-26
2.7.3 Wait for ‘F1’ If Error [Enabled] ....................................... 2-26
2.7.4 Option ROM Messages [Force BIOS] ........................... 2-27
2.7.5 Setup Mode [EZ Mode] ................................................. 2-27
2.7.6 Boot Option Priorities .................................................... 2-27
2.7.7 Boot Override ................................................................ 2-27
2.8 Tools menu ................................................................................. 2-28
2.8.1 ASUS EZ Flash Utility ................................................... 2-28
2.8.2 ASUS SPD Information ................................................. 2-28
2.8.3 ASUS O.C. Prole ......................................................... 2-28
2.9 Exit menu .................................................................................... 2-29
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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 modications to this unit not
expressly approved by the party responsible for compliance could void the user’s authority
to operate this equipment.
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise emissions from
digital apparatus set out in the Radio Interference Regulations of the Canadian Department
of Communications.
This class B digital apparatus complies with Canadian ICES-003.
ASUS Recycling/Takeback Services
ASUS recycling and takeback programs come from our commitment to the highest standards
for protecting our environment. We believe in providing solutions for you to be able to
responsibly recycle our products, batteries, other components as well as the packaging
materials. Please go to http://csr.asus.com/english/Takeback.htm for the detailed recycling
information in different regions.
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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://csr.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.
Safety information
Electrical safety
• To prevent electric shock hazard, disconnect the power cable from the electric outlet
before relocating the system.
• When adding or removing devices to or from the system, ensure that the power cables
for the devices are unplugged before the signal cables are connected. If possible,
disconnect all power cables from the existing system before you add a device.
• Before connecting or removing signal cables from the motherboard, ensure that all
power cables are unplugged.
• Seek professional assistance before using an adapter or extension cord. These devices
could interrupt the grounding circuit.
• Ensure that your power supply is set to the correct voltage in your area. If you are not
sure about the voltage of the electrical outlet you are using, contact your local power
company.
• If the power supply is broken, do not try to x it by yourself. Contact a qualied service
technician or your retailer.
Operation safety
•
Before installing the motherboard and adding devices on it, carefully read all the manuals
that came with the package.
•
Before using the product, ensure that all cables are correctly connected and the power
cables are not damaged. If you detect any damage, contact your dealer immediately.
•
To avoid short circuits, keep paper clips, screws, and staples away from connectors,
slots, sockets and circuitry.
•
Avoid dust, humidity, and temperature extremes. Do not place the product in any area
where it may become wet.
•
Place the product on a stable surface.
•
If you encounter technical problems with the product, contact a qualied service
technician or your retailer.
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About this guide
This user guide contains the information you need when installing and conguring the
motherboard.
How this guide is organized
This guide contains the following parts:
• Chapter 1: Product introduction
This chapter describes the features of the motherboard and the new technology it
supports.
• Chapter 2: BIOS information
This chapter tells how to change system settings through the BIOS Setup menus.
Detailed descriptions of the BIOS parameters are also provided.
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.
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.
Typography
Bold text Indicates a menu or an item to select.
Italics
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>+<D>
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P8Z68-V LX specications summary
CPU LGA1155 socket for Intel® Second Generation Core™ i7 / Core™
Chipset Intel® Z68 Express Chipset
Memory 4 x DIMMs, max. 32GB, DDR3 2200(O.C.)* / 2133(O.C.) / 1866
Graphics Multi-VGA output support: HDMI and DVI-D, RGB port
Multi-GPU support Supports ATI® Quad-GPU CrossFireXTM Technology
Expansion slots 2 x PCI Express 2.0 x16 slots (blue @ x16 mode, black @ x4 mode)
Storage Intel® Z68 Express Chipset:
LAN
i5 / Core™ i3 processors
Supports 32nm CPU
Supports Intel® Turbo Boost technology 2.0
* The Intel® Turbo Boost technology 2.0 support depends on the
CPU types.
** Refer to www.asus.com for Intel® CPU support list.
(O.C.) / 1600 / 1333 / 1066 MHz, non-ECC, un-buffered memory
Dual-channel memory architecture
Supports Intel® Extreme Memory Prole (XMP)
* Due to the CPU behavior, DDR3 2200/2000/1800 MHz memory
module will run at DDR3 2133/1866/1600 MHz frequency as default.
** Refer to www.asus.com for the latest Memory QVL (Qualied
Vendors List).
*** Hyper DIMM support is subject to the physical characteristics of
individual CPUs. Some hyper DIMMs only support one DIMM per
channel. Please refer to Memory QVL for details.
**** When you install a total memory of 4GB capacity or more,
Windows® 32-bit operating system may only recognize less than
3GB. We recommend a maximum of 3GB system memory if you
are using a Windows® 32-bit operating system.
- Supports HDMI with max.resolution up to 1920 x 1200 @60Hz
- Supports DVI with max. resolution up to 1920 x 1200 @60Hz
- Supports RGB with max. resolution up to 2048 x 1536 @75Hz
- Maximum shared memory of 1748MB
Support LucidLogix® Virtu - Universal Switchable Graphics Solution
- i - Mode: display should connect to Sandy Bridge motherboard
video output
- d - Mode: display should connect to the discrete GPU installed in
the system
2 x PCI Express 2.0 x1 slots
3 x PCI slots
* The PCIe x 16_2 slot shares bandwidth with PCIe x1_1 slot, PCIe
x1_2 slot.
- 4 x Serial ATA 3.0 Gb/s connectors
- 2 x Serial ATA 6.0 Gb/s connectors
- Intel® Rapid Storage Technology supports RAID 0, 1, 5 and 10
- Support Intel® Smart Response Technology in Windosw Vista/7
Realtek® 8111E Gigabit LAN controller
(continued on the next page)
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P8Z68-V LX specications summary
Audio Realtek® ALC887 8-channel High Denition Audio CODEC
USB ASMedia USB 3.0 controller:
ASUS unique features ASUS Dual Intelligent Processors
ASUS exclusive
overclocking features
- Supports Jack-Detection, Multi-streaming and Front Panel
Jack-Retasking
- Optical S/PDIF out ports at back I/O
- 2 x USB 3.0 ports at back panel (blue)
Intel® Z68 Express Chipset:
- 12 x USB 2.0 ports (8 ports at mid-board, 4 ports at back
panel)
ASUS EPU
- EPU
ASUS TPU
- Auto Tuning, TurboV, GPU Boost, TPU (GPU Boost) switch
ASUS Power Design
- Industry leading 4+2 phase Power Design
ASUS Exclusive Features
- ASUS UEFI BIOS EZ Mode featuring friendly graphics user
interface
- MemOK!
- AI Suite II
- AI Charger+
- Anti Surge
- Disk Unlocker
ASUS Quiet Thermal Solution
- ASUS Fanless Design: Heat-sink solution
- ASUS Fan Xpert
ASUS EZ DIY
- ASUS O.C. Tuner
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 2
- ASUS Q-Slot
Precision Tweaker 2
- vCore: Adjustable CPU voltage at 0.005V increment
- vCCIO: Adjustable I/O voltage at 0.005V increment
- vDRAM Bus: 255-step Memory voltage control
- vPCH: 255-step Chipset voltage control
SFS (Stepless Frequency Selection)
- BCLK/PCIE frequency tuning from 80MHz up to 300MHz
at 0.1MHz increment
Overclocking Protection
- ASUS C.P.R.(CPU Parameter Recall)
(continued on the next page)
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P8Z68-V LX specications summary
Rear panel ports 1 x PS/2 keyboard / mouse combo port
Internal connectors/
switches/ buttons
BIOS features 64 Mb Flash ROM, UEFI AMI BIOS, PnP, DMI2.0, WfM2.0, SM
Manageability
Accessories 2 x Serial ATA 6.0Gb/s cables
Support DVD Drivers
Form factor
1 x Optical S/PDIF out port
1 x HDMI port
1 x DVI port
1 x RGB port
1 x LAN (RJ-45) port
2 x USB 3.0/2.0 ports
4 x USB 2.0/1.1 ports
8-channel audio I/O ports
4 x USB 2.0/1/1 connectors support additional 8 USB ports
2 x SATA 6.0Gb/s connectors (gray)
4 x SATA 3.0Gb/s connectors (blue)
1 x CPU Fan connector (4-pin)
2 x Chassis Fan connectors (4-pin)
1 x Power Fan connector (3-pin)
1 x Front panel audio connector
1 x S/PDIF Out Header
1 x COM connector
24-pin EATX Power connector
8-pin EATX 12V Power connector
System Panel
1 x MemOK! Button
1 x TPU (GPU Boost) switch
BIOS 2.5, ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2,
ASUS CrashFree BIOS 3, F12 PrintScreen Function
WfM 2.0, DMI 2.0, WOL by PME, WOR by PME, PXE
1 x I/O shield
1 x User Manual
1 x Support DVD
ASUS utilities
ASUS Update
LucidLogix® Virtu software
Anti-virus software (OEM version)
ATX form factor: 12”x 9” (30.5cm x 22.9cm)
* Specications are subject to change without notice.
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Chapter 1
Product introduction
1.1 Welcome!
Thank you for buying an ASUS® P8Z68-V LX 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.
Motherboard ASUS P8Z68-V LX motherboard
Cables 2 x Serial ATA 6.0Gb/s cables
Accessories 1 x I/O shield
Application DVD ASUS motherboard support DVD
Documentation User Manual
If any of the above items is damaged or missing, contact your retailer.
1.3 Special features
1.3.1 Product highlights
ASUS P8Z68-V LX 1-1
LGA1155 socket for Intel® Second Generation Core™ i7/
Core™ i5/ Core™ i3 Processors
This motherboard supports the Intel® Second Generation Core™ i7/
Core™ i5/ Core™ i3 processors in LGA1155 package with memory and
PCI Express controllers integrated to support 2-channel (4 DIMMs) DDR3
memory and 16 PCI Express 2.0 lanes. This provides great graphics
performance. Intel® Second Generation Core™ i7/ Core™ i5/ Core™ i3
processors are among the most powerful and energy efcient CPUs in
the world.
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Intel® Z68 Express Chipset
The Intel® Z68 Express Chipset is the latest single-chipset design to
support the new 1155 socket Intel® Core™ i7 / Core™ i5 / Core™ i3
second generation processors. It uses serial point-to-point links, which
allows increased bandwidth and stability, and provides an improved
performance. It also provides two SATA 6.0 Gb/s and four SATA 3.0
Gb/s ports for faster data retrieval at double the bandwidth of current
bus systems. Moreover, Intel® Z68 Express Chipset also supports
iGPU function, letting users enjoy the latest Intel integrated graphic
performance.
Dual-Channel DDR3 2200(O.C.) / 2133(O.C.) / 1866(O.C.) / 1600 /
1333 / 1066 Support
The motherboard supports DDR3 memory that features data transfer
rates of 2200(O.C.) /2133(O.C.) / 1866 / 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.
* Due to CPU behavior, DDR3 2200/2000/1800 MHz memory module will run at
DDR3 2133/1866/1600 MHz frequency as default.
Intel® Smart Response Technology
Inte® Smart Response Technology boosts overall system performance. It
uses an installed fast SSD (min. 18.6GB available capacity required) as
a cache for frequently accessed data. Key benets include reduced load
and wait times, and lower power consumption through the elimination
of unnecessary hard drive spin. This technology combines SSD
performance with hard drive capacity, operating up to 4X faster than a
hard drive-only system, and an important part of Green ASUS ecofriendly computing.
* Intel® Smart Response Technology supports Windows® 7/ Vista OS.
** IntelIntel® Smart Response Technology is supported by 2nd generation Intel®
Core™ processor family.
*** Operating systems must be installed on the HDD to launch Intel® Smart
Response Technology. The capacity of the SSD is reserved for caching
function.
LucidLogix® Virtu
LucidLogix® Virtu is designed for the Intel® Sandy Bridge platform's
powerful integrated graphics. Its GPU virtualization dynamically
assigns tasks to the best available graphics resources based on power,
performance and system load on Windows® 7 based PCs. It allows
users to fully utilize the unique capabilities of advanced Sandy Bridge
multimedia features alongside the high end 3D rendering performance
provided by installed graphics cards. When no discrete graphics are
needed, the graphics card is put in idle mode to lower utilization, heat,
fan speed and power draw down to near zero, making the system more
environmentally-friendly. For users with diverse needs, LucidLogix® Virtu
GPU virtualization provides great exibility and efciency.
* LucidLogix® VirtuTM supports Windows 7 operating system.
** Intel® Quick Sync Video feature is supported by Intel® CoreTM processor
family.
1-2 Chapter 1: Product introduction
Page 15
Complete USB 3.0 Integration
ASUS facilitates strategic USB 3.0 accessibility for 2 USB 3.0 ports at
the rear panel. Experience the latest plug & play connectivity at speeds
up to 10 times faster than USB 2.0. The P8Z68-V LX affords greater
convenience to high speed connectivity.
ATI Quad-GPU CrossFireX™ Support
ATI's CrossFireX™ boosts image quality along with rendering speed,
eliminating the need to scale down screen resolution to get high quality
images. CrossFireX™ allows higher antialiasing, anisotropic ltering,
shading and texture settings. Adjust your display congurations,
experiment with the 3D settings, and check the effects with a real-time
3D-rendered previews within ATI Catalyst™ Control Center.
True Serial ATA 6Gb/s support
The Intel® Z68 Express Chipset natively supports the Serial ATA (SATA)
interface, delivering up to 6.0 Gb/s data transfer.
PCI Express 2.0 support
This motherboard supports PCI Express 2.0 devices for double speed
and bandwidth which enhances system performance.
S/PDIF out connector at the back I/O
This motherboard provides convenient connectivity to external home
theater audio systems via the optical S/PDIF (SONY-PHILIPS Digital
Interface) out connecor at the back I/O. The S/PDIF transfers digital audio
without converting it to analog format and keeps the best signal quality.
Gigabit LAN solution
The onboard LAN controller is a highly integrated Gb LAN controller. It is
enhanced with an ACPI management function to provide efcient power
management for advanced operating systems.
8-channel high denition audio
The onboard 8-channel HD audio (High Denition Audio, previously
codenamed Azalia) CODEC enables high-quality 192KHz/24-bit audio
output and jack-detect feature that automatically detects and identies
what types of peripherals are plugged into the audio I/O jacks and noties
users of inappropriate connection, which means there will be no more
confusion of Line-in, Line-out, and Mic jacks.
ASUS P8Z68-V LX 1-3
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1.3.2 Innovative ASUS features
ASUS UEFI BIOS (EZ Mode)
ASUS UEFI BIOS offers a user-friendly interface that goes beyond
traditional keyboard-only BIOS controls to enable more exible and
convenient mouse input. Users can easily navigate the UEFI BIOS with
the smoothness of their operating system. Quick and simple overclocking
and setup sharing is facilitated by the F12 hotkey BIOS snapshot feature.
The exclusive EZ Mode displays frequently-accessed setup info, while
the Advanced Mode is for experienced performance enthusiasts that
demand far more intricate system control, including detailed DRAM
information.
Auto Tuning
Auto Tuning is an intelligent tool that automates overclocking to achieve
a total system level up. This tool also provides stability testing. Even O.C.
beginners can achieve extreme yet stable overclocking results with Auto
Tuning!
MemOK!
MemOK! quickly ensures memory boot compatibility. This remarkable
memory rescue tool requires a mere push of the button to patch memory
issues. MemOK! determines failsafe settings and dramatically improves
your system boot success. Get your system up and running in no time.
ASUS 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 proles in TurboV provides
the best O.C. settings in different scenarios.
GPU Boost
GPU Boost overclocks the integrated GPU in real time for the best
graphics performance. User-friendly UI facilitates exible frequency and
voltage adjustments. Its ability to deliver multiple overclocking proles
also provides rapid and stable system-level upgrades.
ASUS Anti-Surge Protection
This special design prevents expensive devices and the motherboard
from damage caused by power surges from switching power supply
(PSU).
ASUS EPU
ASUS EPU is a unique power saving technology that detects the current
system loadings and adjusts the power consumption in real time.
1-4 Chapter 1: Product introduction
Page 17
Fan Xpert
ASUS Fan Xpert intelligently allows you to adjust the CPU and chassis
fan speeds according to different ambient temperatures caused by
different climate conditions in different geographic regions and your PC’s
loading. The built-in variety of useful proles offer exible controls of fan
speed to achieve a quiet and cool environment.
Fanless Design: stylish heatpipe solution
The stylish heatpipe features a 0-dB thermal solution that offers users
a noiseless PC environment. Not only the beautiful shape upgrades the
visual enjoyment for motherboard users, but also the heatsink design
lowers the temperature of the chipset and power phase area through
high efcient heat-exchange. Combined with usability and aesthetics,
the ASUS stylish heatpipe will give users an extremely silent and cooling
experience with the elegant appearance!
AI Suite II
With its user-friendly interface, ASUS AI Suite II consolidates ASUS
features into one simple to use software package. It allows you you to
supervise overclocking, energy management, fan speed control, voltage
and sensor readings. All in one software offers diverse and ease to use
functions, with no need to switch back and forth between different utilities.
Ai Charger+
ASUS Ai Charger+, the latest Ai Charger* version, brings you to a new
level of USB3.0 fast charging experience. With its easy and user-friendly
interface, you can not only easily charge iPod, iPhone and iPad, but also
BC 1.1** standard mobile devices three times*** as fast as before.
* Ai Charger is ASUS unique fast-charging software which supports iPod, iPhone and
iPad.
** Check your USB mobile device manufacturer if it fully supports the BC 1.1 function.
*** The actual charging speed may vary with your USB device’s conditions.
ASUS MyLogo2™
This feature allows you to convert your favorite photo into a 256-color
boot logo for a more colorful and vivid image on your screen.
ASUS CrashFree BIOS 3
ASUS CrashFree BIOS 3 is an auto-recovery tool that allows you to
restore a corrupted BIOS le using the bundled support DVD or USB
ash disk that contains the latest BIOS le.
ASUS EZ Flash 2
ASUS EZ Flash 2 is a utility that allows you to update the BIOS without
using an OS-based utility.
ASUS P8Z68-V LX 1-5
Page 18
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.
ErP ready
The motherboard is European Union´s Energy-related Products (ErP)
ready, and ErP requires products to meet certain energy efciency
requirements in regards to energy consumptions. This is in line with
ASUS vision of creating environment-friendly and energy-efcient
products through product design and innovation to reduce carbon
footprint of the product and thus mitigate environmental impacts.
1.3.3 Intel® Smart Response Technology & LucidLogix® VirtuTM
Solution
Intel® Smart Response Technology
Intel® Smart Response Technology boosts overall system performance. It uses an installed
fast SSD (min 18.6GB available) as a cache for frequently accessed operations, speeding up
hard drive/ main memory interaction. Key benets are expedited hard drive speeds, reduced
load and wait times, and maximized storage utilization. Power consumption also goes down
by reducing unnecessary hard drive spin.
• Intel® Smart Response Technology supports Windows® 7/ Vista operating systems.
• Intel® Smart Response Technology is supported by 2nd generation Intel® Core™
processor family.
• Operating systems must be installed on the HDD to launch Intel® Smart Response
Technology. The capacity of the SSD is reserved for caching function.
• Before applying Intel® Smart Response Technology, set the SATA Mode BIOS item to
[RAID mode] in BIOS setup. Refer to SATA Conguration in Chapter 2 for details.
To install Intel® Smart Response Technology:
1. Place the support DVD to the optical drive. The Drivers installation tab appears if your
computer has enabled the Autorun feature.
2. Click the Drivers tab, then click Intel® Rapid Storage Technology Driver software.
3. Follow the onscreen instructions to complete installation.
To use Intel® Smart Response Technology:
1-6 Chapter 1: Product introduction
Page 19
1. Click Accelerate to launch Smart
Response Technology settings.
2. a. Select the SSD you want to use to
accelerate your storage system.
b. Select the size allocated for SSD
caching.
c. Select which HDD for caching.
d. Enhanced mode:WRITE THROUGH,
write to SSD and HDD at the same
time.
Maximized mode:WRITE BACK,
write to SSD and write back to HDD in
a later time.
3. Select Disable Acceleration to disable
this function and select Change Mode to
switch acceleration mode to Enhanced/
Maximus.
• Only Intel® internal SATA ports (gray and blue) support Intel® Smart Response
Technology.
• You need at least one SSD (>18.6GB) and one HDD as a set to enable Intel
Response Technology. A single SSD can only be assigned to one HDD for caching.
• The maximum caching size on the SSD is 64GB. If the SSD exceeds 64GB, storage
capacity left out of caching can still be identied by the system for normal storage.
• Be sure to disable the acceleration function of Intel® Smart Response Technology under
OS when applying the actions below:
– Removing or replacing the SSD
– Updating IRST 10.5 driver
– Updating BIOS
• If you want to restore the OS, go to BIOS Option ROM utility and select Acceleration
Options to disable Intel® Smart Response Technology.
• The performance of Intel® Smart Response Technology varies by SSD.
ASUS P8Z68-V LX 1-7
®
Smart
Page 20
LucidLogix® Virtu™ solution
LucidLogix® Virtu™ is a new generation GPU virtualization software that blurs the line
between embedded graphics and discrete GPU for increased graphics performance. Its GPU
virtualization dynamically assigns tasks to the best available graphics resources based on
power, performance and system load. It allows users to fully utilize the unique capabilities
of advanced Sandy Bridge multimedia features alongside the high end 3D rendering
performance provided by installed graphics cards. For users with diverse needs, LucidLogix®
Virtu™ GPU virtualization provides great exibility and efciency.
• LucidLogix® Virtu™ supports Windows® 7 operating systems.
• Intel® Quick Sync Video feature is supported by Intel® Core™ processor family.
• Supports NVIDIA® GF4xx/ 5xx series & AMD® HD5xxx/ 6xxx series graphic cards.
Hardware installation
To install LucidLogix® Virtu™:
1. Place the support DVD to the optical drive. The Drivers installation tab appears if your
computer has enabled the Autorun feature.
2. Click the Drivers tab, then click LucidLogix® Virtu™ software.
3. Follow the onscreen instructions to complete installation.
i-Mode
To use LucidLogix® Virtu™ solution in i-Mode,
display must be always connected to Sandy
Bridge motherboard video output.
d-Mode (recommended mode)
To use LucidLogix® Virtu™ solution in
d-Mode, display must be connected to the
discrete GPU installed in the system
Both i-Mode and d-Mode enjoy the performance of Intel® Sandy Bridge built-in
media features and discrete card. d-Mode is recommended for enhanced 3D gamingd-Mode is recommended for enhanced 3D gamingis recommended for enhanced 3D gaming
performance.
1-8 Chapter 1: Product introduction
i-Mode (output from
the Sandy Bridge
GPU)
d-Mode (output from the discrete GPU)
Page 21
1.4 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 P8Z68-V LX 1-9
Page 22
P8Z68-V LX
1.5 Motherboard overview
Before you install the motherboard, study the conguration of your chassis to ensure that the
motherboard ts into it.
Ensure that you unplug the power cord before installing or removing the motherboard.
Failure to do so can cause you physical injury and damage motherboard components.
1.5.1 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.
1.5.2 Screw holes
Place six screws into the holes indicated by circles to secure the motherboard to the chassis.
Do not overtighten the screws! Doing so can damage the motherboard.
Place this side
towards the rear
of the chassis
1-10 Chapter 1: Product introduction
Page 23
P8Z68-V LX
PCIEX16_1
PCIEX16_2
PCIEX1_2
PCIEX1_1
PCI1
PCI2
PCI3
USB56USB78USB910USB1112
PANEL
SPDIF_OUT
AAFP
CPU_FAN
CHA_FAN2
CHA_FAN1
PWR_FAN
Lithium Cell
CMOS Power
Super
I/O
ALC
887
EPU
RTL
8111E
TPU
COM1
64Mb
BIOS
SB_PWR
CLRTC
22.9cm(9.0in)
30.5cm(12.0in)
Intel
®
Z68
DDR3 DIMM_A1 (64bit, 240-pin module)
DDR3 DIMM_A2 (64bit, 240-pin module)
DDR3 DIMM_B1 (64bit, 240-pin module)
DDR3 DIMM_B2 (64bit, 240-pin module)
USB3_12
ASM
1083
ASM
1042
SATA3G_2 SATA3G_3 SATA3G_4
SATA3G_1
SATA6G_2 SATA6G_1
MemOK!
DRAM_LED
TPU
ELED730
EATXPWR
EATX12V
LGA1155
AUDIO
KB_USB34
LAN1_USB12
SPDIF_O2
HDMI
DVI_VGA
1 2 423
1
5
6
8
7
1517 1314 12 11 10
16
9
1.5.3 Motherboard layout
1.5.4 Layout contents
Connectors/Jumpers/Slots/LED Page Connectors/Jumpers/Slots/LED Page
ATX power connectors
1.
(24-pin EATXPWR, 8-pin EATX12V)
CPU, Chassis and power fan connectors (4-pin
2.
CPU_FAN, 4-pin CHA_FAN1/2, 3-pin PWR_FAN)
3. Intel® CPU socket 1-12 12 USB connectors (10-1 pin USB5~12) 1-32
4. DDR3 DIMM sockets 1-17
5. DRAM LED 1-37 14 TPU LED (ELED 730) 1-37
6. MemOK! switch 1-35 15. Serial port connectors (10-1 pin COM1) 1-29
7. Onboard LED (SB_PWR) 1-36 16. Digital audio connector (4-1 pin SPDIF_OUT) 1-30
Intel® Z68 Serial ATA 3.0 Gb/s connectors
8.
(7-pin SATA3G_1–4 [blue])
ASUS P8Z68-V LX 1-11
In te l® Z68 Se ri al ATA 6. 0 Gb/ s con ne ct ors
9.
(7-pin SATA6G_1/2 [gray])
1-33 10 System panel connector (20-8 pin PANEL) 1-34
1-32 11. Clear RTC RAM (3-pin CLRTC) 1-26
.
TPU switch 1-36
13.
1-30 17. Front panel audio connector (10-1 pin AAFP) 1-29
1-31
Page 24
1.6 Central Processing Unit (CPU)
A
B
P8Z68-V LX
P8Z68-V LX CPU socket LGA1155
The motherboard comes with a surface mount LGA1155 socket designed for the Intel® 2nd
Generation Core™ i7 / Core™ i5 / Core™ i3 processors.
Unplug all power cables 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
LGA1155 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.
1.6.1 Installing the CPU
To install a CPU:
1. Locate the CPU socket on the motherboard.
2. Press the load lever with your thumb (A),
Load lever
and then move it to the right (B) until it is
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
1-12 Chapter 1: Product introduction
Page 25
3. Lift the load lever in the direction of the
arrow until the load plate is completely
lifted.
4. Remove the PnP cap from the CPU
socket by lifting the tab only.
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
CPU notches
the CPU 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!
ASUS P8Z68-V LX 1-13
Gold
triangle
mark
Alignment keys
Page 26
B
A
C
6. Apply some Thermal Interface Material
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).
8. Insert the load lever under the retention
tab.
1-14 Chapter 1: Product introduction
Page 27
1.6.2 Installing the CPU heatsink and fan
The Intel® LGA1155 processor requires a specially designed heatsink and fan assembly to
ensure optimum thermal condition and performance.
•
When you buy a boxed Intel® processor, the package includes the CPU fan and
heatsink assembly. If you buy a CPU separately, ensure that you use only Intel®-certied
multi-directional heatsink and fan.
• Your Intel® LGA1155 heatsink and fan assembly comes in a push-pin design and
requires no tool to install.
• Use an LGA1155-compatible CPU heatsink and fan assembly only. The LGA1155 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 you have
properly applied Thermal Interface Material 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.
To install the CPU heatsink and fan:
1. Place the heatsink on top of the installed
CPU, ensuring that the four fasteners match
the holes on the motherboard.
Orient the heatsink and fan assembly
such that the CPU fan cable is closest to
the CPU fan connector.
2. Push down two fasteners at a time in a
diagonal sequence to secure the heatsink
and fan assembly in place.
A
B
The type of CPU heatsink and fan assembly may differ, but the installation steps and
functions should remain the same. The illustration above is for reference only.
B
A
A
B
B
A
1
1
ASUS P8Z68-V LX 1-15
Page 28
3. Connect the CPU fan cable to the connector on the motherboard labeled CPU_FAN.
CPU_FAN
CPU FAN PWM
CPU FAN IN
CPU FAN PWR
GND
P8Z68-V LX
P8Z68-V LX CPU fan connector
Do not forget to connect the CPU fan connector! Hardware monitoring errors can occur if
you fail to plug this connector.
1.6.3 Uninstalling the CPU heatsink and fan
To uninstall the CPU heatsink and fan:
1. Disconnect the CPU fan cable from the connector on the motherboard.
2. Rotate each fastener counterclockwise.
3. Pull up two fasteners at a time in a diagonal sequence to disengage the heatsink and
fan assembly from the motherboard.
A
A
B
B
B
B
A
1-16 Chapter 1: Product introduction
A
Page 29
4. Carefully remove the heatsink and fan
P8Z68-V LX
P8Z68-V LX 240-pin DDR3 DIMM sockets
DIMM_A1
DIMM_A2
DIMM_B1
DIMM_B2
assembly from the motherboard.
5. Rotate each fastener clockwise to ensure
correct orientation when reinstalling.
1.7 System memory
1.7.1 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:
Channel Sockets
Channel A DIMM_A1 and DIMM_A2
Channel B DIMM_B1 and DIMM_B2
ASUS P8Z68-V LX 1-17
Page 30
Recommended memory congurations
One DIMM:
We recommend you install one memory module in the blue slots (DIMM_A2 or DIMM_B2) to
get better performance.
Two DIMMs (dual-channel operation):
Four DIMMs (dual-channel operation):
1-18 Chapter 1: Product introduction
Page 31
1.7.2 Memory congurations
You may install 1GB, 2GB, 4GB and 8GB unbuffered non-ECC DDR3 DIMMs into the DIMM
sockets.
• You may install varying memory sizes in Channel A and Channel B. The system maps
the total size of the lower-sized channel for the dual-channel conguration. Any excess
memory from the higher-sized channel is then mapped for single-channel operation.
• 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
- Install a 64-bit Windows® OS when you want to install 4GB or more on the
motherboard.
• This motherboard does not support DIMMs made up of 512Mb (64MB) chips or less.
• 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 2.4 Ai Tweaker menu for manual memory frequency
adjustment.
• For system stability, use a more efcient memory cooling system to support a full
memory load (4 DIMMs) or overclocking condition.
®
OS.
P8Z68-V LX Motherboard Qualied Vendors List (QVL)
DDR3-2200MHz capability
Vendors Part No. Size
F3-17600CL8D-
G.SKILL
4GBPS(XMP)
FLKE85F-B8KJAA-
Kingmax
FEIS(XMP)
FLKE85F-B8KHA
Kingmax
EEIH(XMP)
Kingmax FLKE85F-B8KJA FEIH(XMP)
SS/DSChip
4GB(2 x
DS - - 8-8-8-24 1.65V • •
2GB)
2GB DS - - - - • • •
4GB(2 x
DS - - - 1.5V-1.7V • • •
2GB)
4GB(2 x
DS - - - 1.5V-1.7V • • •
2GB)
Chip NO. Timing Voltage
Brand
ASUS P8Z68-V LX 1-19
DIMM socket support (Optional)
1 DIMM 2 DIMM 4 DIMM
Page 32
DDR3-2133MHz capability
Vendors Part No. Size
GEIL GU34GB2133C9DC(XMP)
KHX2133C9AD3W1K2/
KINGSTON
4GX(XMP)
KHX2133C9AD3X2K2/
KINGSTON
4GX(XMP)
KHX2133C9AD3T1FK4/
KINGSTON
8GX(XMP)
KHX2133C9AD3T1K4/
KINGSTON
8GX(XMP)
SS/DSChip
4GB(2 x
DS - - 9-9-9-28 1.65V • • •
2GB)
4GB ( 2x
DS - - - 1.65V • •
2GB )
4GB(2 x
DS - - 9-11-9-27 1.65V • • •
2GB)
8GB(4 x
DS - - 9-11-9-27 1.65V • • •
2GB)
8GB(4 x
DS - - 9-11-9-27 1.65V • • •
2GB)
Brand
Chip
NO.
Timing Voltage
DIMM socket support (Optional)
1 DIMM 2 DIMM 4 DIMM
DDR3-2000MHz capability
SS/DSChip
Vendors Part No. Size
Apacer 78.AAGD5.9KD(XMP) 6GB(3 x 2GB) DS - - 9-9-9-27 1.65V • • •
CORSAIR CMT6GX3M3A2000C8(XMP) 6GB(3 x 2GB) DS - - 8-9-8-24 1.65V • • •
F3-16000CL9D-
G.SKILL
4GBFLS(XMP)
F3-16000CL9D-
G.SKILL
4GBTD(XMP)
F3-16000CL6T-
G.SKILL
6GBPIS(XMP)
GEIL GUP34GB2000C9DC(XMP) 4GB(2 x 2GB) DS - - 9-9-9-28 1.65V • • •
KHX2000C9AD3T1K2/
KINGSTON
4GX(XMP)
KHX2000C9AD3W1K2/
KINGSTON
4GX(XMP)
KHX2000C9AD3T1K2/
KINGSTON
4GX(XMP)
KHX2000C9AD3W1K3/
KINGSTON
6GX(XMP)
KHX2000C9AD3T1K3/
KINGSTON
6GX(XMP)
OCZ OCZ3XTEP2000C9LV4GK 4GB(2 x 2GB) DS - - 9-9-9-24 1.65V • • •
4GB(2 x 2GB) DS - - 9-9-9-24 1.65V • • •
4GB(2 x 2GB) DS - - 9-9-9-27 1.65V • • •
6GB (3x 2GB ) DS - - 6-9-6-24 1.65V • •
4GB ( 2x 2GB ) DS - - - 1.65V • • •
4GB ( 2x 2GB ) DS - - - 1.65V • •
4GB(2 x 2GB) DS - - 9 1.65V • • •
6GB ( 3x 2GB ) DS - - - 1.65V • •
6GB (3x 2GB ) DS - - - 1.65V • • •
Brand
Chip
Timing Voltage
NO.
DIMM socket support (Optional)
1 DIMM 2 DIMM 4 DIMM
DDR3-1866MHz capability
Vendors Part No. Size
AX3U1866PB2G8-
A-Data
DP2(XMP)
CORSAIR CMT4GX3M2A1866C9(XMP)
CORSAIR CMT6GX3MA1866C9(XMP)
CORSAIR CMZ8GX3M2A1866C9(XMP)
F3-14900CL9D-
G.SKILL
8GBXL(XMP)
KHX1866C9D3T1K3/
KINGSTON
3GX(XMP)
KHX1866C9D3T1K3/
KINGSTON
6GX(XMP)
OCZ OCZ3P1866C9LV6GK
2GB DS - - 8-8-8-24 1.55V-1.75V •
4GB(2 x
2GB)
6GB(3 x
2GB)
8GB(2 x
4GB)
8GB(2 x
4GB)
3GB(3 x
1GB)
6GB(3 x
2GB)
6GB(3 x
2GB)
SS/DSChip
DS - - 9-9-9-24 1.65V • • •
DS - - 9-9-9-24 1.65V • •
DS - - 9-10-9-27 1.50V • • •
DS - - 9-10-9-28 1.5V • • •
SS - - - 1.65V • • •
DS - - - 1.65V • • •
DS - - 9-9-9-28 1.65V • •
Brand
Chip
Timing Voltage
NO.
DIMM socket support (Optional)
1 DIMM 2 DIMM 4 DIMM
1-20 Chapter 1: Product introduction
Page 33
DDR3-1600MHz capability
Vendors Part No. Size
A-Data AD31600E001GM(O)U3K 3GB(3 x 1GB) SS - - 8-8-8-24 1.65V-1.85V • • •
A-Data AX3U1600GC4G9-2G(XMP) 8GB(2 x 4GB) DS - - 9-9-9-24 1.55V-1.75V • • •
A-Data AX3U1600XC4G79-2X(XMP) 8GB(2 x 4GB) DS - - 7-9-7-21 1.55V-1.75V • • •
CORSAIR TR3X3G1600C8D(XMP) 3GB(3 x 1GB) SS - - 8-8-8-24 1.65V • • •
CORSAIR CMP4GX3M2A1600C8(XMP) 4GB(2 x 2GB) DS - - 8-8-8-24 1.65V • • •
CORSAIR CMP4GX3M2C1600C7(XMP) 4GB(2 x 2GB) DS - - 7-8-7-20 1.65V • • •
CORSAIR CMT4GX3M2A1600C7(XMP) 4GB(2 x 2GB) DS - - 7-7-7-20 1.65V • •
CORSAIR CMX4GX3M2A1600C9(XMP) 4GB(2 x 2GB) DS - - 9-9-9-24 1.65V • •
CORSAIR CMX4GX3M2A1600C9(XMP) 4GB(2 x 2GB) DS - - 9-9-9-24 1.65V • • •
CORSAIR TR3X6G1600C8 G(XMP) 6GB(3 x 2GB) DS - - 8-8-8-24 1.65V • • •
CORSAIR TR3X6G1600C8D G(XMP) 6GB(3 x 2GB) DS - - 8-8-8-24 1.65V • • •
CORSAIR TR3X6G1600C9 G(XMP) 6GB(3 x 2GB) DS - - 9-9-9-24 1.65V • • •
CORSAIR CMP8GX3M2A1600C9(XMP) 8GB(2 x 4GB) DS - - 9-9-9-24 1.65V • • •
CORSAIR CMX8GX3M4A1600C9(XMP) 8GB(4 x 2GB) DS - - 9-9-9-24 1.65V • • •
Crucial BL25664BN1608.16FF(XMP) 6GB(3 x 2GB) DS - - - - • • •
G.SKILL F3-12800CL9D-2GBNQ(XMP) 2GB(2 x 1GB) SS - - 9-9-9-24 1.5V~1.6V • • •
G.SKILL F3-12800CL7D-4GBRH(XMP) 4GB(2 x 2GB) SS - - 7-7-7-24 1.6V • • •
G.SKILL F3-12800CL7D-4GBRM(XMP) 4GB(2 x 2GB) DS - - 7-8-7-24 1.6V • • •
G.SKILL F3-12800CL8D-4GBRM(XMP) 4GB(2 x 2GB) DS - - 8-8-8-24 1.60V • • •
G.SKILL F3-12800CL9D-4GBECO(XMP) 4GB(2 x 2GB) DS - - 9-9-9-24 XMP 1.35V • • •
G.SKILL F3-12800CL9D-4GBRL(XMP) 4GB(2 x 2GB) DS - - 9-9-9-24 1.5V • •
G.SKILL F3-12800CL9T-6GBNQ(XMP) 6GB(3 x 2GB) DS - - 9-9-9-24 1.5V~1.6V • • •
G.SKILL F3-12800CL7D-8GBRH(XMP) 8GB(2 x 4GB) DS - - 7-8-7-24 1.6V • • •
G.SKILL F3-12800CL8D-8GBECO(XMP) 8GB(2 x 4GB) DS - - 8-8-8-24 XMP 1.35V • • •
G.SKILL F3-12800CL9D-8GBRL(XMP) 8GB(2 x 4GB) DS - - 9-9-9-24 1.5V • • •
GEIL GET316GB1600C9QC(XMP)
GEIL GV34GB1600C8DC(XMP) 2GB DS - - 8-8-8-28 1.6V • •
Kingmax FLGD45F-B8MF7 MAEH(XMP) 1GB SS - - 7 - • • •
Kingmax FLGE85F-B8KJ9A FEIS(XMP) 2GB DS - - - - • • •
Kingmax FLGE85F-B8MF7 MEEH(XMP) 2GB DS - - 7 - • • •
KINGSTON KHX1600C9D3K3/12GX(XMP) 12GB(3x4GB) DS - - 9-9-9-27 1.65V • • •
KHX1600C9D3T1BK3/
KINGSTON
12GX(XMP)
KINGSTON KHX1600C9AD3/2G 2GB DS - - - 1.65V • • •
KINGSTON KVR1600D3N11/2G-ES 2GB DS KTC
KINGSTON KHX1600C7D3K2/4GX(XMP) 4GB ( 2x 2GB ) DS - - - 1.65V • • •
KINGSTON KHX1600C8D3K2/4GX(XMP) 4GB(2 x 2GB) DS - - 8 1.65V • • •
KINGSTON KHX1600C8D3T1K2/4GX(XMP) 4GB(2 x 2GB) DS - - 8 1.65V • • •
KINGSTON KHX1600C9D3K2/4GX(XMP) 4GB(2 x 2GB) DS - - 9 1.65V • • •
KINGSTON KHX1600C9D3LK2/4GX(XMP) 4GB(2 x 2GB) DS - - 9 XMP 1.35V • • •
KINGSTON KHX1600C9D3X2K2/4GX(XMP) 4GB(2 x 2GB) DS - - 9-9-9-27 1.65V • • •
KINGSTON KHX1600C9D3T1K3/6GX(XMP) 6GB ( 3x 2GB ) DS - - - 1.65V • • •
KINGSTON KHX1600C9D3K3/6GX(XMP) 6GB(3 x 2GB) DS - - 9 1.65V • • •
KINGSTON KHX1600C9D3T1BK3/6GX(XMP) 6GB(3 x 2GB) DS - - 9-9-9-27 1.65V • • •
KINGSTON KHX1600C9D3K2/8GX(XMP) 8GB(2 x 4GB) DS - - 9-9-9-27 1.65V • • •
OCZ OCZ3G1600LV3GK 3GB(3 x 1GB) SS - - 8-8-8-24 1.65V •
OCZ OCZ3BE1600C8LV4GK 4GB(2 x 2GB) DS - - 8-8-8-24 1.65V • •
OCZ OCZ3BE1600LV4GK 4GB(2 x 2GB) DS - - 7-7-7-24 1.65V • • •
OCZ OCZ3G16004GK 4GB(2 x 2GB) DS - - 8-8-8-24 1.7V • • •
OCZ OCZ3OB1600LV4GK 4GB(2 x 2GB) DS - - - 1.65V • • •
OCZ OCZ3G1600LV6GK 6GB(3 x 2GB) DS - - 8-8-8-24 1.65V • • •
Super Talent WA160UX6G9 6GB(3 x 2GB) DS - - 9 - • •
16GB ( 4x
4GB )
12GB(3x4GB) DS - - 9-9-9-27 1.65V • •
SS/DSChip
Chip NO. Timing Voltage
Brand
DS - - 9-9-9-28 1.6V • • •
D1288JPN
11-11-
DPLD9U
1.35V-1.5V • • •
11-28
DIMM socket support
(Optional)
1 DIMM 2 DIMM 4 DIMM
ASUS P8Z68-V LX 1-21
Page 34
DDR3-1333MHz capability
Vendors Part No. Size
A-Data AD31333001GOU 1GB SS A-Data
A-Data AD63I1B0823EV 2GB SS A-Data 3CCA-1509A - - • • •
A-Data AD31333G001GOU 3GB(3 x 1GB) SS - - 8-8-8-24 1.65-1.85V • •
AXDU1333GC2G9-2G
A-Data
(XMP)
A-Data AD31333G002GMU 2GB DS - - 8-8-8-24 1.65-1.85V • • •
A-Data AD63I1C1624EV 4GB DS A-Data 3CCA-1509A - - • • •
Apacer 78.A1GC6.9L1 2GB DS Apacer AM5D5808DEWSBG - - • • •
Apacer 78.A1GC6.9L1 2GB DS Apacer AM5D5808FEQSBG 9 - • • •
Apacer 78.B1GDE.9L10C 4GB DS Apacer AM5D5908CEHSBG - - • • •
Corsair CM3X1024-1333C9 1GB SS - - 9-9-9-24 1.60V • • •
Corsair TR3X3G1333C9 G 3GB(3 x 1GB) SS - - 9-9-9-24 1.50V • • •
Corsair TR3X6G1333C9 G 6GB(3x 2GB) SS - - 9-9-9-24 1.50V •
CMD24GX3M6A1333C9
Corsair
(XMP)
Corsair TW3X4G1333C9D G 4GB(2 x 2GB) DS - - 9-9-9-24 1.50V • • •
Corsair CMD8GX3M4A1333C7 8GB(4 x 2GB) DS - - 7-7-7-20 1.60V • •
Crucial CT12864BA1339.8FF 1GB SS Micron 9FF22D9KPT 9 - • • •
Crucial CT25664BA1339.16FF 2GB DS Micron 9KF27D9KPT 9 - • • •
Crucial BL25664BN1337.16FF(XMP) 6GB(3 x 2GB) DS - - 7-7-7-24 1.65V • • •
ELPIDA EBJ10UE8EDF0-DJ-F 1GB SS ELPIDA J1108EDSE-DJ-F -
ELPIDA EBJ21UE8EDF0-DJ-F 2GB DS ELPIDA J1108EDSE-DJ-F -
G.SKILL F3-10600CL8D-2GBHK(XMP) 1GB SS G.SKILL - - - • • •
G.SKILL F3-10666CL7T-3GBPK(XMP) 3GB(3 x 1GB) SS - - 7-7-7-18 1.5~1.6V • • •
G.SKILL F3-10666CL7T-6GBPK(XMP) 6GB(3 x 2GB) DS - - 7-7-7-18 1.5~1.6V • • •
G.SKILL F3-10666CL7D-8GBRH(XMP) 8GB(2 x 4GB) DS - - 7-7-7-21 1.5V • • •
GEIL GET316GB1333C9QC 16GB(4x 4GB) DS - - 9-9-9-24 1.5V •
GEIL GV32GB1333C9DC 2GB(2 x 1GB) DS - - 9-9-9-24 1.5V • •
GEIL GG34GB1333C9DC 4GB(2 x 2GB) DS GEIL GL1L128M88BA12N 9-9-9-24
GEIL GV34GB1333C9DC 4GB(2 x 2GB) DS - - 9-9-9-24 1.5V • • •
GEIL GVP34GB1333C7DC 4GB(2 x 2GB) DS - - 7-7-7-24 1.5V • • •
Hynix HMT112U6TFR8A-H9 1GB SS Hynix H5TC1G83TFRH9A -
Hynix HMT325U6BFR8C-H9 2GB SS Hynix H5TQ2G83BFRH9C - - • • •
Hynix HMT125U6TFR8A-H9 2GB DS Hynix H5TC1G83TFRH9A -
Hynix HMT351U6BFR8C-H9 4GB DS Hynix H5TQ2G83BFRH9C - - •
Kingmax FLFD45F-B8KL9 NAES 1GB SS Kingmax KKB8FNWBFGNX-27A - - • • •
Kingmax FLFE85F-C8KF9 CAES 2GB SS Kingmax KFC8FMFXF-DXX-15A - - • • •
Kingmax FLFE85F-C8KM9 NAES 2GB SS Kingmax KFC8FNMXF-BXX-15A - - • • •
Kingmax FLFE85F-B8KL9 NEES 2GB DS Kingmax KKB8FNWBFGNX-26A - - • • •
Kingmax FLFF65F-C8KM9 NEES 4GB DS Kingmax KFC8FNMXF-BXX-15A - - • • •
Kingston KVR1333D3N9/1G(low profile) 1GB SS ELPIDA J1108BDBG-DJ-F 9 1.5V • • •
Kingston KVR1333D3N9/2G(low profile) 2GB SS Hynix H5TQ2G83AFRH9C 9 - • • •
Kingston KVR1333D3N9/2G(low profile) 2GB DS ELPIDA J1108BDBG-DJ-F 9 1.5V • • •
Kingston KVR1333D3N9/2G 2GB DS KTC D1288JPNDPLD9U 9 1.5V • • •
Kingston KVR1333D3N9/2G 2GB DS ELPIDA J1108BDSE-DJ-F 9 1.5V • •
Kingston KHX1333C7D3K2/4GX(XMP) 4GB(2 x 2GB) DS - - 7 1.65V • • •
Kingston KHX1333C9D3UK2/4GX(XMP) 4GB(2 x 2GB) DS - - 9 XMP 1.25V • • •
Kingston KVR1333D3N9/4G 4GB DS Hynix H5TQ2G83AFR - - • • •
Micron MT4JTF12864AZ-1G4D1 1GB SS Micron OJD12D9LGQ - - • • •
Micron MT8JTF12864AZ-1G4F1 1GB SS Micron 9FF22D9KPT 9 - • • •
Micron MT8JTF25664AZ-1G4D1 2GB SS Micron OJD12D9LGK - - • • •
Micron MT16JTF25664AZ-1G4F1 2GB DS Micron 9KF27D9KPT 9 - • • •
Micron MT16JTF51264AZ-1G4D1 4GB DS Micron OLD22D9LGK - - • •
OCZ OCZ3F13334GK 4GB(2 x 2GB) DS - - 9-9-9-20 1.7V • • •
OCZ OCZ3G1333LV4GK 4GB(2 x 2GB) DS - - 9-9-9-20 1.65V • •
OCZ OCZ3P1333LV4GK 4GB(2 x 2GB) DS - - 7-7-7-20 1.65V • • •
OCZ OCZ3X13334GK(XMP) 4GB(2 x 2GB) DS - - 7-7-7-20 1.75V • •
OCZ OCZ3P1333LV6GK 6GB(3 x 2GB) DS - - 7-7-7-20 1.65V •
OCZ OCZ3X1333LV6GK(XMP) 6GB(3 x 2GB) DS - - 8-8-8-20 1.60V • • •
OCZ OCZ3G1333LV8GK 8GB(2x 4GB ) DS - - 9-9-9-20 1.65V • •
OCZ OCZ3RPR1333C9LV8GK 8GB(2x 4GB ) DS - - 9-9-9-20 1.65V • • •
4GB(2 x 2GB) SS - - 9-9-9-24
24GB (6x4GB) DS - - 9-9-9-24 1.60V • • •
SS/DSChip
Brand
Chip NO. Timing Voltage
AD30908C8D-151C
E0906
- - • • •
1.25V-1.35V
(low voltage)
1.35V(low
voltage)
1.35V(low
voltage)
1.3V(low
voltage)
1.35V(low
voltage)
1.35V(low
voltage)
DIMM socket support
(Optional)
1 DIMM 2 DIMM 4 DIMM
• • •
• • •
• •
• • •
• • •
• • •
(continued on the next page)
1-22 Chapter 1: Product introduction
Page 35
DDR3-1333MHz capability
Vendors Part No. Size
PSC AL7F8G73F-DJ2 1GB SS PSC A3P1GF3FGF - - • • •
PSC AL8F8G73F-DJ2 2GB DS PSC A3P1GF3FGF - - • • •
SAMSUNG M378B2873FHS-CH9 1GB SS SAMSUNG K4B1G0846F - - • • •
SAMSUNG M378B5673FH0-CH9 2GB DS SAMSUNG K4B1G0846F - - • • •
SAMSUNG M378B5273CH0-CH9 4GB DS SAMSUNG K4B2G0846C - - • • •
Super
W1333UA1GH 1GB SS Hynix H5TQ1G83TFR 9 - • • •
Talent
Super
W1333UB2GS 2GB DS SAMSUNG K4B1G0846F 9 - • • •
Talent
Super
W1333UB4GS 4GB DS SAMSUNG K4B2G0846C - - • • •
Talent
Super
W1333UX6GM 6GB(3x 2GB) DS Micron 0BF27D9KPT 9-9-9-24 1.5V • • •
Talent
Transcend TS256MLK64V3U 2GB DS Micron 9GF27D9KPT - - • •
SS/DSChip
Brand
Chip NO. Timing Voltage
DIMM socket support
(Optional)
1 DIMM 2 DIMM 4 DIMM
DDR3-1066MHz capability
Vendors Part No. Size
Crucial CT12864BA1067.8FF 1GB SS Micron 9GF22D9KPT 7 - • • •
Crucial CT25664BA1067.16FF 2GB DS Micron 9HF22D9KPT 7 - • • •
ELPIDA EBJ10UE8EDF0-AE-F 1GB SS ELPIDA J1108EDSE-DJ-F - 1.35V(low voltage) • • •
ELPIDA EBJ21UE8EDF0-AE-F 2GB DS ELPIDA J1108EDSE-DJ-F - 1.35V(low voltage) • • •
KINGSTON KVR1066D3N7/1G(low profile) 1GB SS ELPIDA J1108BFSE-DJ-F 7 1.5V • • •
KINGSTON KVR1066D3N7/2G 2GB DS ELPIDA J1108BDSE-DJ-F 7 1.5V • • •
KINGSTON KVR1066D3N7/4G 4GB DS Hynix H5TQ2G83AFR 7 1.5V • • •
Micron MT8JTF12864AZ-1G1F1 1GB SS Micron 9GF22D9KPT 7 - • • •
Micron MT16JTF25664AZ-1G1F1 2GB DS Micron 9HF22D9KPT 7 - • • •
SS/DSChip
Brand
Chip NO. Timing Voltage
Visit the ASUS website at www.asus.com for the latest QVL.
DIMM socket support
(Optional)
1 DIMM 2 DIMM 4 DIMM
ASUS P8Z68-V LX 1-23
Page 36
1.7.3 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. Unlock a DIMM socket by pressing the
retaining clips outward.
2. Align a DIMM on the socket such that
the notch on the DIMM matches the
DIMM slot key on the socket.
1
Unlocked retaining clip
A DIMM is keyed with a notch so that it ts in only one direction. DO NOT force a DIMM into
a socket in the wrong direction to avoid damaging the DIMM.
3. Firmly insert the DIMM into the socket
until the retaining clips snap back in
place and the DIMM is properly seated.
Locked Retaining Clip
1.7.4 Removing a DIMM
Follow these steps to remove a DIMM.
2
DIMM notch
1
DIMM slot key
3
1. Press the retaining clips outward to
unlock the DIMM.
Support the DIMM lightly with your
ngers when pressing the retaining
clip. The DIMM might get damaged
when it ips out with extra force.
1
2
1
DIMM notch
2. Remove the DIMM from the socket.
1-24 Chapter 1: Product introduction
Page 37
1.8 Expansion slots
In the future, you may need to install expansion cards. The following sub-sections describe
the slots and the expansion cards that they support.
Unplug the power cord before adding or removing expansion cards. Failure to do so may
cause you physical injury and damage motherboard components.
1.8.1 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).
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.
1.8.2 Conguring an expansion card
After installing the expansion card, congure it by adjusting the software settings.
1. Turn on the system and change the necessary BIOS settings, if any. See Chapter 2 for
information on BIOS setup.
2. Assign an IRQ to the card.
3. Install the software drivers for the expansion card.
When using PCI cards on shared slots, ensure that the drivers support “Share IRQ” or that
the cards do not need IRQ assignments. Otherwise, conicts will arise between the two PCI
groups, making the system unstable and the card inoperable.
1.8.3 PCI Express 2.0 x1 slots
This motherboard supports PCI Express 2.0 x1 network cards, SCSI cards, and other cards
that comply with the PCI Express specications.
1.8.4 PCI Express 2.0 x16 slots
This motherboard has a PCI Express 2.0 x16 slot that supports PCI Express 2.0 x16 graphic
cards complying with the PCI Express specications.
1.8.5 PCI slots
The PCI slots support cards such as a LAN card, SCSI card, USB card, and other cards that
comply with PCI specications.
ASUS P8Z68-V LX 1-25
Page 38
1.9 Jumpers
P8Z68-V LX
P8Z68-V LX Clear RTC RAM
1 2 2 3
Normal
(Default)
Clear RTC
CLRTC
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 clearing the CMOS, 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 CPU Parameter Recall (C.P.R.) feature. Shut
down and reboot the system, then the BIOS automatically resets parameter settings to
default values.
1-26 Chapter 1: Product introduction
Page 39
1.10 Connectors
12
5 6 7 8
910
4
11
3
1314
1 2
15
1.10.1 Rear panel connectors
1. PS/2 Keyboard/Mouse combo port. This port is for a PS/2 keyboard/mouse.
2. Optical S/PDIF Out port. This port connects an external audio output device via an
3. Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other
4. LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN)
5. Center / Subwoofer port (orange). This port connects the center/subwoofer speakers.
6. Rear Speaker Out port (black). This port connects the rear speakers in a 4-channel,
7. Line In port (light blue). This port connects the tape, CD, DVD player, or other audio
8. Line Out port (lime). This port connects a headphone or a speaker. In 4-channel, 6-
9. Microphone port (pink). This port connects a microphone.
10. Side Speaker Out port (gray). This port connects the side speaker in an 8-channel
optical S/PDIF cable.
VGA-compatible devices.
through a network hub. Refer to the table on the next page for the LAN port LED
indicators.
LAN port LED indications
ACT/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
6-channel, or 8-channel audio conguration.
sources.
channel, and 8-channel congurations, the function of this port becomes Front Speaker
Out.
audio conguration.
ACT/LINK
LED
LAN port
SPEED
LED
Refer to the audio conguration table below for the function of the audio ports in a 2, 4, 6,
or 8-channel conguration.
ASUS P8Z68-V LX 1-27
Page 40
Audio 2, 4, 6, or 8-channel conguration
Port
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
Headset
2-channel
4-channel 6-channel 8-channel
11. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports connect to
USB 2.0/1.1 devices.
12. USB 3.0 ports 1 and 2. These two 9-pin Universal Serial Bus (USB) ports connect to
USB 3.0/2.0 devices.
• DO NOT connect a keyboard / mouse to any USB 3.0 port when installing Windows
operating system.
• Due to USB 3.0 controller limitation, USB 3.0 devices can only be used under Windows
OS environment and after the USB 3.0 driver installation.
• USB 3.0 devices can only be used as data storage only.
• We strongly recommend that you connect USB 3.0 devices to USB 3.0 ports for faster
and better performance for your USB 3.0 devices.
®
®
13. DVI-D port. This port is for any DVI-D compatible device. DVI-D can’t be converted to
output RGB Signal to CRT and isn’t compatible with DVI-I.
14. HDMI port. This port is for a High-Denition Multimedia Interface (HDMI) connector,
and is HDCP compliant allowing playback of HD DVD, Blu-Ray and other protected
content.
15. USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus (USB) ports connect to
USB 2.0/1.1 devices.
Dual display output support
• This table indicates whether the following dual display outputs are supported for your
motherboard.
Dual display outputs Supported Not supported
DVI + D-Sub •
HDMI + D-Sub •
DVI + HDMI •
• During POST, only the monitor connected to the D-Sub port has display. The dual display
function works only under Windows.
• This motherboard also supports two add-on graphic cards and two onboard VGA
outputs at the same time.
1-28 Chapter 1: Product introduction
Page 41
1.10.2 Internal connectors
P8Z68-V LX
P8Z68-V LX Front panel audio connector
AAFP
PIN 1 PIN 1
SENSE2_RETUR
SENSE1_RETUR
PRESENCE#
GND
PORT2 L
SENSE_SEND
PORT2 R
PORT1 R
PORT1 L
HD-audio-compliant
pin definition
NC
NC
NC
AGND
Line out_L
NC
Line out_R
MICPWR
MIC2
Legacy AC’97
compliant definition
P8Z68-V LX
P8Z68-V LX Serial port (COM1) connector
PIN 1
COM1
1. Front panel audio connector (10-1 pin AAFP)
This connector is for a chassis-mounted front panel audio I/O module that supports
either High Denition Audio or 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-denition front panel audio module to this
connector to avail of the motherboard’s high-denition audio capability.
• If you want to connect a high-denition front panel audio module to this connector, set
the Front Panel Type item in the BIOS setup to [HD]. If you want to connect an AC'97
front panel audio module to this connector, set the item to [AC97]. By default, this
connector is set to [HD]. See section 2.5.6 Onboard Devices Conguration for details.
2. Serial port connectors (10-1 pin COM1)
The connector is for a serial (COM) port. Connect the serial port module cable to the
connector, then install the module to a slot opening at the back of the system chassis.
The serial port bracket (COM1) is purchased separately.
ASUS P8Z68-V LX 1-29
Page 42
P8Z68-V LX
P8Z68-V LX SATA 3.0Gb/s connectors
GND
RSATA_TXP3
RSATA_TXN3
GND
RSATA_RXP3
RSATA_RXN3
GND
SATA3G_3
GND
RSATA_TXP4
RSATA_TXN4
GND
RSATA_RXP4
RSATA_RXN4
GND
SATA3G_4SATA3G_2
GND
RSATA_TXP2
RSATA_TXN2
GND
RSATA_RXP2
RSATA_RXN2
GND
GND
RSATA_RXN1
RSATA_RXP1
GND
RSATA_TXN1
RSATA_TXP1
GND
SATA3G_1
3. Digital audio connector (4-1 pin SPDIF_OUT)
SPDIF_OUT
+5V
SPDIFOUT
GND
P8Z68-V LX
P8Z68-V LX Digital audio connector
This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port.
The S/PDIF module is purchased separately.
4. Intel® Z68 Serial ATA 3.0 Gb/s connectors (7-pin SATA3G_1–4 [blue])
These connectors connect to Serial ATA 3.0 Gb/s hard disk drives and optical disc drives
via Serial ATA 3.0 Gb/s signal cables.
If you installed Serial ATA hard disk drives, you can create a RAID 0, 1, 5, and 10
conguration with the Intel® Rapid Storage Technology through the onboard Intel® Z68
chipset.
•
These connectors are set to [AHCI Mode] by default. If you intend to create a Serial ATA
RAID set using these connectors, set the SATA Mode item in the BIOS to [RAID Mode].
Refer to section 3.5.4 SATA Conguration for details.
•
When using NCQ, please check the SATA Mode in the BIOS is [AHCI Mode]. Refer to
SATA Conguration for details.
•
You must install Windows® XP Service Pack 3 or later versions before using Serial
ATA hard disk drives. The Serial ATA RAID feature is available only if you are using
Windows® XP SP3 or later versions.
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5. Intel® Z68 Serial ATA 6.0 Gb/s connectors (7-pin SATA6G_1/2 [gray])
SATA6G_1SATA6G_2
GND
RSATA_RXN1
RSATA_RXP1
GND
RSATA_TXN1
RSATA_TXP1
GND
GND
RSATA_RXN2
RSATA_RXP2
GND
RSATA_TXN2
RSATA_TXP2
GND
P8Z68-V LX
P8Z68-V LX SATA 6.0Gb/s connectors
These connectors connect to Serial ATA 6.0 Gb/s hard disk drives via Serial ATA 6.0
Gb/s signal cables.
If you installed Serial ATA hard disk drives, you can create a RAID 0, 1, 5, and 10
conguration with the Intel® Rapid Storage Technology through the onboard Intel® Z68
chipset.
•
These connectors are set to [AHCI Mode] by default. If you intend to create a Serial ATA
RAID set using these connectors, set the SATA Mode item in the BIOS to [RAID Mode].
Refer to section SATA Conguration for details.
•
When using NCQ, set the SATA Mode in the BIOS to [AHCI Mode]. Refer to section
SATA Conguration for details.
•
You must install Windows® XP Service Pack 3 or later versions before using Serial
ATA hard disk drives. The Serial ATA RAID feature is available only if you are using
Windows® XP SP3 or later versions.
ASUS P8Z68-V LX 1-31
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P8Z68-V LX
P8Z68-V LX fan connectors
CPU_FAN
CHA_FAN1
CPU FAN PWM
CPU FAN IN
CPU FAN PWR
GND
CHA_FAN2
CHA FAN PWM
CHA FAN IN
CHA FAN PWR
GND
GND
CHA FAN PWR
CHA FAN IN
CHA FAN PWM
GND
+12V
Rotation
PWR_FAN
6. USB 2.0 connectors (10-1 pin USB5~12)
P8Z68-V LX
P8Z68-V LX USB2.0 connectors
USB+5V
USB_P10-
USB_P10+
GND
NC
USB+5V
USB_P9-
USB_P9+
GND
USB910
PIN 1
USB+5V
USB_P12-
USB_P12+
GND
NC
USB+5V
USB_P11-
USB_P11+
GND
USB1112
PIN 1
USB+5V
USB_P8-
USB_P8+
GND
NC
USB+5V
USB_P7-
USB_P7+
GND
USB78
PIN 1
USB+5V
USB_P6-
USB_P6+
GND
NC
USB+5V
USB_P5-
USB_P5+
GND
USB56
PIN 1
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 the USB 2.0 specication that supports up
to 480Mbps connection speed.
Never connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!
The USB 2.0 module is purchased separately.
7. CPU and Chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN1, 4-pin
CHA_FAN2, 3-pin PWR_FAN)
Connect the fan cables to the fan connectors on the motherboard, making sure 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. Insufcient air ow inside
the system may damage the motherboard components. They are not jumpers! DO NOT
place jumper caps on the fan connectors.
The CPU_FAN connector supports a CPU fan of maximum 2A (24 W) fan power.
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8. ATX power connectors (24-pin EATXPWR, 8-pin ATX12V)
P8Z68-V LX
P8Z68-V LX ATX power connectors
PIN 1
GND
+5 Volts
+5 Volts
+5 Volts
-5 Volts
GND
GND
GND
PSON#
GND
-12 Volts
+3 Volts
+3 Volts
+12 Volts
+12 Volts
+5V Standby
Power OK
GND
+5 Volts
GND
+5 Volts
GND
+3 Volts
+3 Volts
EATX12V
PIN 1
+12V DC
+12V DC
+12V DC
+12V DC
GND
GND
GND
GND
EATXPWR
These connectors are for an ATX power supply. The plugs from the power supply are
designed to t these connectors in only one orientation. Find the proper orientation and
push down rmly until the connectors completely t.
• For a fully congured system, we recommend that you use a power supply unit (PSU)
that complies with ATX 12 V Specication 2.0 (or later version) and provides a minimum
power of 350 W.
•
DO NOT forget to connect the 4-pin / 8-pin ATX +12V power plug. Otherwise, the system
will not boot up.
• We recommend that you use a PSU with higher power output when conguring a
system with more power-consuming devices or when you intend to install additional
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 http://support.asus.
com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details.
ASUS P8Z68-V LX 1-33
Page 46
9. System panel connector (20-8 pin PANEL)
P8Z68-V LX
P8Z68-V LX System panel connector
PIN 1
* Requires an ATX power supply
PLED SPEAKER
PLED+
PLED-
+5V
Ground
Ground
Speaker
IDE_LED+
IDE_LED-
PWR
Ground
Reset
Ground
PANEL
IDE_LED PWRSW RESET
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 2-pin connector is for the system power button.
•
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.
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1.11 Onboard switches
P8Z68-V LX
P8Z68-V LX MemOK! switch
Onboard switches allow you to ne-tune performance when working on a bare or open-case
system. This is ideal for overclockers and gamers who continually change settings to
enhance system performance.
1. 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.
• Refer to section 1.12 Onboard LEDs for the exact location of the DRAM_LED.
• 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 (Qualied Vendors Lists) in this user manual or on the ASUS website at
www.asus.com.
• If you turn off the computer and replace DIMMs during the tuning process, the system
continues memory tuning after turning on the computer. To stop memory tuning, turn off
the computer and unplug the power cord for about 5–10 seconds.
• If your system fail to boot due to BIOS overclocking, press the MemOK! switch to boot
and load BIOS default settings. A 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.
ASUS P8Z68-V LX 1-35
Page 48
SB_PWR
ON
Standby Power Powered Off
OFF
P8Z68-V LX
P8Z68-V LX Onboard LED
2. TPU (GPU Boost) switch
P8Z68-V LX TPU switch
TPU switch
P8Z68-V LX
Turning this switch to Enable will automatically optimize the system for fast, yet stable
clock speeds.
• For ensuring the system performance, turn the switch setting to Enable
when the system is powered off.
• When the TPU switch is set to Enable, it can be used as GPU Boost
switch.
• The TPU LED (ELED 730) near the TPU switch lights when the switch setting
is turned to Enable. Refer to section 1.12 Onboard LEDs for the exact location
of the TPU LED.
• If you change the switch setting to Enable under the OS environment, the
TPU function will be activated after the next system bootup.
• You may use the TurboV and Auto Tuning feature in the TurboV EVO
application, adjust the BIOS setup program, or enable the TPU switch at the
same time. However, the system will use the last setting you have made.
1.12 Onboard LEDs
1. 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.
1-36 Chapter 1: Product introduction
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2. DRAM LED
P8Z68-V LX
P8Z68-V LX DRAM LED
DRAM LED
P8Z68-V LX TPU LED
ELED 730
P8Z68-V LX
DRAM LED checks the DRAM in sequence during motherboard booting process. If an
error is found , the LED next to the error device will continue lighting until the problem
is solved. This user-friendly design provides an intuitional way to locate the root
problem within a second.
2. TPU LED
The TPU LED lights when the TPU switch is turned to Enable.
ASUS P8Z68-V LX 1-37
Page 50
1.13 Software support
1.13.1 Installing an operating system
This motherboard supports Windows® XP / Vista / 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. Refer to your OS documentation for
detailed information.
• Ensure that you install Windows® XP Service Pack 3 or later versions / Windows® Vista
Service Pack 1 or later versions before installing the drivers for better compatibility and
system stability.
1.13.2 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.
To run the Support DVD
Place the Support DVD to the optical drive. The DVD automatically displays the Specials
menu if Autorun is enabled in your computer. Click an item on the top bar to display
respective menu.
The following screen is for reference only.
Click an icon to
display Support
DVD/motherboard
information
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.
1-38 Chapter 1: Product introduction
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Chapter 2
BIOS information
2.1 Managing and updating your BIOS
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.
2.1.1 ASUS Update utility
The ASUS Update is a utility that allows you to manage, save, and update the motherboard
BIOS in Windows® environment.
• ASUS Update requires an Internet connection either through a network or an Internet
Service Provider (ISP).
• This utility is available in the support DVD that comes with the motherboard package.
Installing ASUS Update
To install ASUS Update:
1. Place the support DVD in the optical drive. The Drivers menu appears.
2. Click the Utilities tab, then click AI Suite II.
3. Follow the onscreen instructions to complete the installation.
Quit all Windows® applications before you update the BIOS using this utility.
Updating the BIOS
To update the BIOS:
1. From the Windows® desktop, click Start > Programs > ASUS > AI Suite II > AI Suite
II X.XX.XX to launch the AI Suite II utility. The AI Suite II Quick Bar appears.
2. Click Update button from the Quick Bar, and then click ASUS Update from the popup
menu. The ASUS Update main screen appears. From the list, select either of the
following methods:
Updating from the Internet
a. Select Update BIOS from the Internet, then click Next.
b. Select the ASUS FTP site nearest you to avoid network trafc, then click Next.
c. From the FTP site, select the BIOS version that you wish to download then click
Next.
Chapter 2: BIOS information 2-1
Page 52
The ASUS Update utility is capable of updating itself through the Internet. Always update
the utility to avail all its features.
Updating from a BIOS file
a. Select Update BIOS from le, then click Next.
b. Locate the BIOS le from the Open window, then click Open.
3. Follow the onscreen instructions to complete the updating process.
2.1.2 ASUS EZ Flash 2
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 le 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.
2. Enter the Advanced Mode of the BIOS setup program. Go to the Tool menu to select
ASUS EZ Flash Utility and press <Enter> to enable it.
Exit
ASUS EZ Flash 2 Utility V01.02
Flash Info
MODEL: P8Z68-V LX VER: 0201 DATE: 05/26/2011
File Path: fs0:\
Drive Folder Info
fs0:\ 06/17/11 10:23p 4194304 P8Z68VLX.ROM
File Info
MODEL: P8Z68-V LX VER: 0201 DATE: 05/26/11
Help Info
[Enter] Select or Load [Tab] Switch [Up/Down/PageUp/PageDown/Home/End] Move [Esc] Exit [F2] Backup
2-2 ASUS P8Z68-V LX
Page 53
3. Press <Tab> to switch to the Drive eld.
4. Press the Up/Down arrow keys to nd the USB ash disk that contains the latest BIOS,
and then press <Enter>.
5. Press <Tab> to switch to the Folder Info eld.
6. Press the Up/Down arrow keys to nd the BIOS le, and then press <Enter> to perform
the BIOS update process. Reboot the system when the update process is done.
• This function supports USB ash disks with FAT 32/16 format and single partition only.
• DO NOT shut down or reset the system while updating the BIOS to prevent system boot
failure!
2.1.3 ASUS CrashFree BIOS 3 utility
The ASUS CrashFree BIOS 3 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 updated BIOS
le.
• Before using this utility, rename the BIOS le in the removable device into
P8Z68VLX.ROM.
• The BIOS le in the support DVD may not be the latest version. Download the latest
BIOS le from the ASUS website at www.asus.com.
Recovering the BIOS
To recover the BIOS:
1. Turn on the system.
2. Insert the support DVD to the optical drive or the USB ash drive that contains 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 enters ASUS EZ Flash 2 utility automatically.
4. The system requires you to enter BIOS Setup to recover BIOS setting. To ensure
system compatibility and stability, we recommend that you press <F5> to load default
BIOS values.
DO NOT shut down or reset the system while updating the BIOS! Doing so can cause
system boot failure!
Chapter 2: BIOS information 2-3
Page 54
2.1.4 ASUS BIOS Updater
The ASUS BIOS Updater allows you to update BIOS in DOS environment. This utility also
allows you to copy the current BIOS le that you can use as a backup when the BIOS fails or
gets corrupted during the updating process.
The succeeding utility screens are for reference only. The actual utility screen displays may
not be same as shown.
Before updating BIOS
1. Prepare the motherboard support DVD and a USB ash drive in FAT32/16 format and
single partition.
2. Download the latest BIOS le and BIOS Updater from the ASUS website at
http://support.asus.com and save them on the USB ash drive.
NTFS is not supported under DOS environment. Do not save the BIOS le and BIOS
Updater to a hard disk drive or USB ash drive in NTFS format.
3. Turn off the computer and disconnect all SATA hard disk drives (optional).
Booting the system in DOS environment
1. Insert the USB ash drive with the latest BIOS le and BIOS Updater to the USB port.
2. Boot your computer. When the ASUS Logo appears, press <F8> to show the BIOS
Boot Device Select Menu. Insert the support DVD into the optical drive and select the
optical drive as the boot device.
Please select boot device:
SATA: XXXXXXXXXXXXXXXX
USB XXXXXXXXXXXXXXXXX
UEFI: XXXXXXXXXXXXXXXX
Enter Setup
↑and ↓ to move selection
ENTER to select boot device
ESC to boot using defaults
3. When the Make Disk menu appears, select the FreeDOS command prompt item by
pressing the item number.
4. At the FreeDOS prompt, type d: and press <Enter> to switch the disk from
Drive C (optical drive) to Drive D (USB ash drive).
Welcome to FreeDOS (http://www.freedos.org)!
C:\>d:
D:\>
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Backing up the current BIOS
To backup the current BIOS le using the BIOS Updater
Ensure that the USB ash drive is not write-protected and has at least 8192KB free space
to save the le.
1. At the FreeDOS prompt, type bupdater /o[lename] and press <Enter>.
D:\>bupdater /oOLDBIOS1.rom
Filename Extension
The [lename] is any user-assigned lename with no more than eight alphanumeric
characters for the lename and three alphanumeric characters for the extension.
2. The BIOS Updater backup screen appears indicating the BIOS backup process. When
BIOS backup is done, press any key to return to the DOS prompt.
ASUSTek BIOS Updater for DOS V1.07
Current ROM
BOARD: P8Z68-V LX
VER: 0211
DATE: 06/16/2011
PATH: A:\
BIOS backup is done! Press any key to continue.
Note
Saving BIOS:
Update ROM
BOARD: Unknown
VER: Unknown
DATE: Unknown
Chapter 2: BIOS information 2-5
Page 56
Updating the BIOS le
To update the BIOS le using BIOS Updater
1. At the FreeDOS prompt, type bupdater /pc /g and press <Enter>.
D:\>bupdater /pc /g
2. The BIOS Updater screen appears as below.
ASUSTek BIOS Updater for DOS V1.07
Current ROM
BOARD: P8Z68-V LX
VER: 0211
DATE: 06/16/2011
PATH: A:\
A:
Note
[Enter] Select or Load [Tab] Switch [V] Drive Info
[Up/Down/Home/End] Move [B] Backup [Esc] Exit
P8Z68VLX.ROM 4194304 2011-06-17 17:30:48
Update ROM
BOARD: Unknown
VER: Unknown
DATE: Unknown
3. Press <Tab> to switch between screen elds and use the <Up/Down/Home/End> keys
to select the BIOS le and press <Enter>. BIOS Updater checks the selected BIOS le
and prompts you to conrm BIOS update.
Are you sure to update BIOS?
Yes No
4. Select Yes and press <Enter>. When BIOS update is done, press <ESC> to exit BIOS
Updater. Restart your computer.
DO NOT shut down or reset the system while updating the BIOS to prevent system boot
failure!
• For BIOS Updater version 1.04 or later, the utility automatically exits to the DOS prompt
after updating BIOS.
• Ensure to load the BIOS default settings to ensure system compatibility and stability.
Select the Load Optimized Defaults item under the Exit menu. Refer to section 2.9
Exit menu for details.
• Ensure to connect all SATA hard disk drives after updating the BIOS le if you have
disconnected them.
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2.2 BIOS setup program
Use the BIOS Setup program to update the BIOS or congure 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.
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 BIOS setup screens shown in this section are for reference purposes only, and may
not exactly match what you see on your screen.
• Ensure that a USB mouse is connected to your motherboard if you want to use the
mouse to control the BIOS setup program.
• 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 Optimized Defaults item under the Exit Menu. See section 2.9 Exit Menu.
• If the system fails to boot after changing any BIOS setting, try to clear the CMOS and
reset the motherboard to the default value. Refer to section 1.9 Jumpers on how to
erase the RTC RAM.
• The BIOS setup program does not support the bluetooth devices.
Chapter 2: BIOS information 2-7
Page 58
BIOS menu screen
The BIOS setup program can be used under two modes: EZ Mode and Advanced Mode.
You can change modes from the Exit menu or from the Exit/Advanced Mode button in the EZ
Mode/Advanced Mode screen.
EZ Mode
By default, the EZ Mode screen appears when you enter the BIOS setup program. The EZ
Mode provides you an overview of the basic system information, and allows you to select
the display language, system performance mode and boot device priority. To access the
Advanced Mode, click Exit/Advanced Mode, then select Advanced Mode.
The default screen for entering the BIOS setup program can be changed. Refer to the
Setup Mode item in sectionsection 2.7 Boot memu for details.
Exits the BIOS setup program without saving
the changes, saves the changes and resets
Displays the CPU/motherboard
temperature, CPU/5V/3.3V/12V voltage
output, CPU/chassis fan speed
the system, or enters the Advanced Mode
Selects the display language of
the BIOS setup program
EFI BIOS Utility - EZ Mode
P8Z68-V LX
BIOS Version : 0211 Build Date : 06/16/2011
CPU Type : Intel(R) Core (TM) i5-2400 CPU @ 3.10GHz Speed : 3100 MHz
Monday [12/27/2010]
Temperature Voltage Fan Speed
CPU +113.0ºF/+45.0ºC CPU 1.248V 5V 5.160V CPU_FAN 4485RPM PWR_FAN N/A
MB +75.2ºF/+40.0ºC 3.3V 3.344V 12V 12.248V CHA_FAN1 N/A CHA_FAN2 N/A
System Performance
Performance Energy Saving
Boot Priority
Use the mouse to drag or keyboard to navigate to decide the boot priority.
Selects the boot device priority
Displays the system properties of the
selected mode on the right hand side
Total Memory : 1024 MB (DDR3 1333MHz)
Quiet
Normal
Power Saving mode
Normal mode ASUS Optimal mode
Boot Menu(F8)
Loads optimized default
Selects the boot device priority
Exit/Advanced Mode
English
Default(F5)
• The boot device options vary depending on the devices you installed to the system.
• The Boot Menu(F8) button is available only when the boot device is installed to the
system.
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Advanced Mode
The Advanced Mode provides advanced options for experienced end-users to congure
the BIOS settings. The gure below shows an example of the Advanced Mode. Refer to the
following sections for the detailed congurations.
To access the EZ Mode, click Exit, then select ASUS EZ Mode.
Back button
Menu items
Menu bar
Conguration elds
EFI BIOS Utility - Advanced Mode
Main
Back Advanced\ Onboard Devices Conguration >
HD Audio Controller Enabled
Front Panel Type HD
SPDIF Out Type SPDIF
PCI Express x16_2 slot (Black) bandwidth 2,0,1,1 x2...
Realtek LAN Controller Enabled
Realtek PXE OPROM Disabled
Asmedia USB 3.0 Controller (Back) Enabled
Asmedia USB 3.0 Battery Charging Support Disabled
> Serial Port Conguration
Submenu item
Ai Tweaker
Disabled
Enabled
Version 2.00.1201. Copyright (C) 2010 American Megatrends, Inc.
Advanced Monitor Boot Tool
Asmedia USB 3.0 Controller
Pop-up window
Enabled/Disabled Asmedia USB 3.0
→←: Select Screen
↑↓: Select Item
Enter: Select
+/-: Change Opt.
F1: General Help
F2: Previous Values
F5: Optimized Defaults
F10: Save ESC: Exit
F12: Print Screen
Scroll bar
Menu bar
The menu bar on top of the screen has the following main items:
General help
Exit
Navigation keys
Main For changing the basic system conguration
Ai Tweaker For changing the overclocking settings
Advanced For changing the advanced system settings
Monitor For displaying the system temperature, power status, and changing the fan settings
Boot For changing the system boot conguration
Tool For conguring options for special functions
Exit For selecting the exit options and loading default settings
Chapter 2: BIOS information 2-9
Page 60
Menu items
The highlighted item on the menu bar displays the specic items for that menu. For example,
selecting Main shows the Main menu items.
The other items (Ai Tweaker, Advanced, Monitor, Boot, Tool, and Exit) on the menu bar have
their respective menu items.
Back button
This button appears when entering a submenu. Press <Esc> or use the USB mouse to click
this button to return to the previous menu screen.
Submenu items
A greater than sign (>) before each item on any menu screen means that the item has a
submenu. To display the submenu, select the item and press <Enter> or double-click the
item.
Pop-up window
Select a menu item and press <Enter> to display a pop-up window with the conguration
options for that item.
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.
Navigation keys
At the bottom right corner of the menu screen are the navigation keys for the BIOS setup
program. Use the navigation keys to select items in the menu and change the settings.
General help
At the top right corner of the menu screen is a brief description of the selected item.
Conguration elds
These elds show the values for the menu items. If an item is user-congurable, you can
change the value of the eld opposite the item. You cannot select an item that is not
user-congurable.
A congurable eld is highlighted when selected. To change the value of a eld, select it and
press <Enter> or click on it to display a list of options.
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2.3 Main menu
The Main menu screen appears when you enter the Advanced Mode of the BIOS Setup
program. The Main menu provides you an overview of the basic system information, and
allows you to set the system date, time, language, and security settings.
EFI BIOS Utility - Advanced Mode
Main
BIOS Version 0211 x64
Build Date 06/16/2011
EC Version MBECD-0006a
ME Version N/A
South Bridge Stepping B3 Stepping
CPU Information
Intel(R) Core(TM) i5-2500 CPU @ 3.30GHz
Speed 3100 MHz
Memory Information
Total Memory 1024 MB
Speed 1333 MHz
System Language English
System Date [Thu 01/20/2011]
System Time [16:46:15]
Access Level Administrator
> Security
Ai Tweaker
Advanced Monitor Boot Tool
Choose the system default languageBIOS Information
→←: Select Screen
↑↓: Select Item
Enter: Select
+/-: Change Opt.
F1: General Help
F2: Previous Values
Exit
2.3.1 System Language [English]
Allows you to choose the BIOS language version from the options. Conguration options:
[English]
2.3.2 System Date [Day xx/xx/xxxx]
Allows you to set the system date.
2.3.3 System Time [xx:xx:xx]
Allows you to set the system time.
2.3.4 Security
The Security menu items allow you to change the system security settings.
• If you have forgotten your BIOS password, erase the CMOS Real Time Clock (RTC)
RAM to clear the BIOS password. See section 1.9 Jumpers for information on how to
erase the RTC RAM.
• The Administrator or User Password items on top of the screen show the default Not
Installed. After you set a password, these items show Installed.
Chapter 2: BIOS information 2-11
Page 62
Administrator Password
If you have set an administrator password, we recommend that you enter the administrator
password for accessing the system. Otherwise, you might be able to see or change only
selected elds in the BIOS setup program.
To set an administrator password:
1. Select the Administrator Password item and press <Enter>.
2. From the Create New Password box, key in a password, then press <Enter>.
3. Conrm the password when prompted.
To change an administrator password:
1. Select the Administrator Password item and press <Enter>.
2. From the Enter Current Password box, key in the current password, then press
<Enter>.
3. From the Create New Password box, key in a new password, then press <Enter>.
4. Conrm the password when prompted.
To clear the administrator password, follow the same steps as in changing an administrator
password, but press <Enter> when prompted to create/conrm the password. After you clear
the password, the Administrator Password item on top of the screen shows Not Installed.
User Password
If you have set a user password, you must enter the user password for accessing the system.
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 User Password item and press <Enter>.
2. From the Create New Password box, key in a password, then press <Enter>.
3. Conrm the password when prompted.
To change a user password:
1. Select the User Password item and press <Enter>.
2. From the Enter Current Password box, key in the current password, then press
<Enter>.
3. From the Create New Password box, key in a new password, then press <Enter>.
4. Conrm the password when prompted.
To clear the user password, follow the same steps as in changing a user password, but press
<Enter> when prompted to create/conrm the password. After you clear the password, the
User Password item on top of the screen shows Not Installed.
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2.4 Ai Tweaker menu
The Ai Tweaker menu items allow you to congure 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 conguration options for this section vary depending on the CPU and DIMM model you
installed on the motherboard.
EFI BIOS Utility - Advanced Mode
Main
Target CPU Turbo-Mode Speed: 3400MHz
Target DRAM Speed: XXXXMHz
Ai Overclock Tuner Auto
Turbo Ratio Auto
Internal PLL Overvoltage Auto
Memory Frequency Auto
iGPU Max. Frequency Auto
EPU Power Saving Mode Disabled
> OC Tuner
> DRAM Timing Control
> CPU Power Management
CPU Offset Mode Sign +
CPU Voltage 1.165V Auto
iGPU Offset Mode Sign +
iGPU Voltage Auto
Ai Tweaker
Version 2.00.1201. Copyright (C) 2010 American Megatrends, Inc.
Advanced Monitor Boot Tool
Scroll down to display the following items:
DRAM Voltage 1.500v Auto
VCCIO Voltage 1.050V Auto
PCH Voltage 1.050V Auto
Load-Line Calibration Auto
CPU Spread Spectrum Auto
[X.M.P.] When XMP is enabled BCLK
frequency, CPU ratio and memory
parameters will be auto optimized.
→←: Select Screen
↑↓: Select Item
Enter: Select
+/-: Change Opt.
F1: General Help
F2: Previous Values
F5: Optimized Defaults
F10: Save ESC: Exit
F12: Print Screen
Exit
Version 2.00.1201. Copyright (C) 2010 American Megatrends, Inc.
Target DRAM Speed : xxxxMHz
Displays the current DRAM speed.
Chapter 2: BIOS information 2-13
Page 64
2.4.1 Ai Overclock Tuner [Auto]
Allows you to select the CPU overclocking options to achieve the desired CPU internal
frequency. Select any of these preset overclocking conguration options:
[Auto] Loads the optimal settings for the system.
[Manual] Allows you to individually set overclocking parameters.
BCLK/PEG Frequency [XXX]
Appears when you set the Ai Overclock Tuner item to [Manual] and allows you to adjust the
CPU and VGA frequency to enhance the system performance. Use the <+> and <-> keys to
adjust the value. You can also key in the desired value using the numeric keypad. The values
range from 80MHz to 300MHz.
2.4.2 Turbo Ratio [By All Cores]
Allows you to manually adjust the Trubo CPU ratio.
[Auto] All Turbo ratio are set by Intel CPU default settings.
[By ALL Cores (Can Adjust in OS)] All numbers of active cores will be set to one single
[By Per Core (Cannot Adjust in OS)] All numbers of active cores can be set to an individual
By ALL Cores (Can Adjust in OS) [XX]
This item appears only when you set the Turbo Ratio item to [By ALL Cores (Can
Adjust in OS)]. Use the <+> and <-> keys to adjust the value.
1-/2-/3-/4-Core Ratio Limit [XX]
This item appears only when you set the Turbo Ratio item to [By Per Core
(Cannot Adjust in OS)]. Use the <+> and <-> keys to adjust the value.
Turbo ratio in OS.
Turbo ratio in BIOS.
2.4.3 Internal PLL Overvoltage [Auto]
Allows you to set the Internal PLL Overvoltage. Conguration options: [Auto] [Enabled]
[Disabled]
2.4.4 Memory Frequency [Auto]
Allows you to set the memory operating frequency. Conguration options: [Auto]
[DDR3-800MHz] [DDR3-1066MHz] [DDR3-1333MHz] [DDR3-1600MHz] [DDR3-1866MHz]
[DDR3-2133MHz] [DDR3-2400MHz]
Selecting a very high memory frequency may cause the system to become unstable! If this
happens, revert to the default setting.
2.4.5 iGPU Max. Frequency [Auto]
Allows you to set the maximum frequency for the internal GPU. Use the <+> and <-> keys to
adjust the value. You can also key in the desired value using the numeric keypad. The values
range from 1100MHz to 3000MHz.
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2.4.6 EPU Power Saving Mode [Disabled]
Allows you to enable or disable the EPU power saving function.
Conguration options: [Disabled] [Enabled]
EPU Setting [Auto]
This item appears only when The EPU Power Saving Mode is set to [Enabled] and
allows you to set power saving mode. Conguration options: [Auto] [Light Power
Saving Mode] [Medium Power Saving Mode] [Max Power Saving Mode]
2.4.7 OC Tuner
OC Tuner automatically overclocks the frequency and voltage of CPU and DRAM for
enhancing the system performance. Conguration options: [OK] [Cancel]
2.4.8 DRAM Timing Control
The sub-items in this menu allow you to set the DRAM timing control features. Use the <+>
and <-> keys to adjust the value. To restore the default setting, type [auto] using the keyboard
and press <Enter>.
Changing the values in this menu may cause the system to become unstable! If this
happens, revert to the default settings.
2.4.9 CPU Power Management
The sub-items in this menu allow you to set the CPU ratio and features.
CPU Ratio [Auto]
Allows you to manually adjust the maximum non-turbo CPU ratio. Use <+> and <-> keys or
the numeric keypad to adjust the value. The valid value ranges vary according to your CPU
model.
Enhanced Intel SpeedStep Technology [Enabled]
Allows you to enable or disable the Enhanced Intel® SpeedStep Technology (EIST).
[Disabled] Disables this function.
[Enabled] The operating system dynamically adjusts the processor voltage and
Turbo Mode [Enabled]
This item appears only when you set the previous item to [Enabled].
[Enabled] Allows processor cores to run faster than marked frequency in specic
[Disabled] Disables this function.
core frequency which may result in decreased average consumption and
decreased average heat production.
conditions.
The following three items appear only when you set both the Enhanced Intel® SpeedStep
Technology and Turbo Mode items to [Enabled].
Long duration power limit [Auto]
Use the <+> and <-> keys to adjust the value.
Chapter 2: BIOS information 2-15
Page 66
Long duration maintained [Auto]
Use the <+> and <-> keys to adjust the value.
Short duration power limit [Auto]
Use the <+> and <-> keys to adjust the value.
Additional Turbo Voltage [Auto]
Use the <+> and <-> keys to adjust the value.
Primary Plane Current Limit [Auto]
Use the <+> and <-> keys to adjust the value.
Secondary Plane Current Limit [Auto]
Use the <+> and <-> keys to adjust the value.
Some of the following items are adjusted by typing the desired values using the numeric
keypad and press <Enter>. You can also use the <+> and <-> keys to adjust the value. To
restore the default setting, type [auto] using the keyboard and press <Enter>.
2.4.10 iGPU Offset Mode Sign [+]
[+] To offset the voltage by a positive value.
[–] To offset the voltage by a negative value.
iGPU Voltage [Auto]
Allows you to set the Offset voltage. The values range from -0.315V to +0.635V with a
0.005V interval.
2.4.11 DRAM Voltage [Auto]
Allows you to set the DRAM voltage. The values range from 1.185V to 2.135V with a 0.005V
interval.
According to Intel CPU specication, 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.
2.4.12 VCCIO Voltage [Auto]
Allows you to set the VCCIO voltage. The values range from 0.735V to 1.685V with a 0.005V
interval.
2.4.13 PCH Voltage [Auto]
Allows you to set the Platform Controller Hub voltage. The values range from 0.735V to
1.685V with a 0.005V interval.
• The values of the CPU Offset Voltage, DRAM Voltage, VCCIO Voltage, CPU PLL
Voltage, and PCH Voltage items are labeled in different color, indicating the risk levels
of high voltage settings.
• The system may need better cooling system to work stably under high voltage settings.
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2.4.14 Load-Line Calibration [Auto]
Load-line is dened by Intel VRM specication and affects CPU voltage. The CPU working
voltage will decrease proportionally to CPU loading. Higher load-line calibration would get
higher voltage and better overclocking performance, but increase the CPU and VRM thermal.
This item allows you to set this function for better system performance. Conguration options:
[Auto] [Disabled] [Enabled]
The actual performance boost may vary depending on your CPU specication.
2.4.15 CPU Spread Spectrum [Auto]
[Auto] Automatic conguration.
[Disabled] Enhances the BCLK overclocking ability.
[Enabled] Sets to [Enabled] for EMI control.
2.5 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.
EFI BIOS Utility - Advanced Mode
Main
> CPU Conguration
> System Agent Conguration
> PCH Conguration
> SATA Conguration
> USB Conguration
> Onboard Devices Conguration
> APM
Ai Tweaker
Version 2.00.1201. Copyright (C) 2010 American Megatrends, Inc.
Advanced Monitor Boot Tool
CPU Conguration Parameters
→←: Select Screen
↑↓: Select Item
Enter: Select
+/-: Change Opt.
F1: General Help
F2: Previous Values
F5: Optimized Defaults
F10: Save ESC: Exit
F12: Print Screen
Exit
Chapter 2: BIOS information 2-17
Page 68
2.5.1 CPU Conguration
The items in this menu show the CPU-related information that the BIOS automatically
detects.
The items shown in submenu may be different due to the CPU you installed.
CPU Ratio [Auto]
Allows you to adjust the maximum non-turbo CPU ratio. Use <+> and <-> keys or the numeric
keypad to adjust the ratio. The valid value ranges vary according to your CPU model.
Intel Adaptive Thermal Monitor [Enabled]
[Enabled] Enables the overheated CPU to throttle its clock speed to cool down.
[Disabled] Disables the CPU thermal monitor function.
Active Processor Cores [All]
Allows you to choose the number of CPU cores to activate in each processor package.
Conguration options: [All] [1] [2] [3]
Limit CPUID Maximum [Disabled]
[Enabled] Allows legacy operating systems to boot even without support for CPUs
[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 Virtualization Technology [Disabled]
[Enabled] Allows a hardware platform to run multiple operating systems separately
[Disabled] Disables this function.
Enhanced Intel SpeedStep Technology [Enabled]
Allows you to enable or disable the Enhanced Intel® SpeedStep Technology (EIST).
[Disabled] The CPU runs at its default speed.
[Enabled] The operating system controls the CPU speed.
Turbo Mode [Enabled]
This item appears only when you set the Enhanced Intel SpeedStep Technology item to
[Enabled] and allows you to enable or disable the Intel® Turbo Mode Technology.
[Enabled] Allows processor cores to run faster than marked frequency in specic
[Disabled] Disables this function.
CPU C1E [Enabled]
[Enabled] Enables the C1E support function. This item should be enabled in order to
[Disabled] Disables this function.
with extended CPUID functions.
and simultaneously, enabling one system to virtually function as several
systems.
condition.
enable the Enhanced Halt State.
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CPU C3 Report [Enabled]
Allows you to disable or enable the CPU C3 report to OS.
Conguration options: [Disabled] [Enabled]
CPU C6 Report [Enabled]
Allows you to disable or enable the CPU C6 report to OS.
Conguration options: [Enabled] [Disabled]
2.5.2 System Agent Conguration
The System Agent Conguration menu allows you to change the northbridge chipset settings.
Initiate Graphic Adapter [PCIE/PCI]
Allows you to decide which graphics controller to use as the primary boot device.
Conguration options: [iGPU] [PCI/iGPU] [PCI/PCIE] [PCIE/PCI]
iGPU Memory [64M]
Allows you to set the Internal Graphics Device share memory size.
Conguration options: [32M] [64M] [96M] [128M]
Render Standby [Enabled]
Allows you to enable or disable Render Standby by Internal Graphics Device.
Conguration options: [Disabled] [Enabled]
iGPU Multi-Monitor [Disabled]
Allows you enable or disable Internal Graphics Device Multi-Monitor Support for add-on VGA
devices. Set this item to [Enabled] to enable Lucid Virtu. Conguration options: [Disabled]
[Enabled]
2.5.3 PCH Conguration
High Precision Timer [Enabled]
Allows you to enable or disable the High Precision Event Timer.
Conguration options: [Disabled] [Enabled]
2.5.4 SATA Conguration
While entering Setup, the BIOS automatically detects the presence of SATA devices. The
SATA Port items show Not Present if no SATA device is installed to the corresponding SATA
port.
SATA Mode [AHCI Mode]
Allows you to set the SATA conguration.
[Disabled] Disables the SATA function.
[IDE Mode] Set to [IDE Mode] when you want to use the Serial ATA hard disk drives as
[AHCI Mode] Set to [AHCI Mode] when you want the SATA hard disk drives to use the
[RAID Mode] Set to [RAID Mode] when you want to create a RAID conguration from the
Chapter 2: BIOS information 2-19
Parallel ATA physical storage devices.
AHCI (Advanced Host Controller Interface). The AHCI allows the onboard
storage driver to enable advanced Serial ATA features that increases
storage performance on random workloads by allowing the drive to
internally optimize the order of commands.
SATA hard disk drives.
Page 70
Serial-ATA Controller 0 [Enhanced]
This item appears only when you set the SATA Mode item to [IDE Mode].
[Disabled] Disables the SATA function.
[Enhanced] Set to [Enhanced] to support more than four SATA devices.
[Compatible] Set to [Compatible] when using Windows 98/NT/2000/MS-DOS. Up to four
SATA devices are supported under these oeprating syste.
Serial-ATA Controller 1 [Enhanced]
This item appears only when you set the SATA Mode item to [IDE Mode].
[Disabled] Disables the SATA function.
[Enhanced] Set to [Enhanced] to support more than four SATA devices.
S.M.A.R.T. Status Check [Enabled]
S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) is a monitor system. When
read/write of your hard disk errors occur, this feature allows the hard disk to report warning
messages during the POST. Conguration options: [Enabled] [Disabled]
2.5.5 USB Conguration
The items in this menu allow you to change the USB-related features.
The USB Devices item shows the auto-detected values. If no USB device is detected, the
item shows None.
Legacy USB Support [Enabled]
[Enabled] Enables the support for USB devices on legacy operating systems (OS).
[Disabled] The USB devices can be used only for the BIOS setup program.
[Auto] Allows the system to detect the presence of USB devices at startup. If
Legacy USB3.0 Support [Enabled]
[Enabled] Enables the support for USB 3.0 devices on legacy operating systems
[Disabled] Disables the function.
EHCI Hand-off [Disabled]
[Enabled] Enables the support for operating systems without an EHCI hand-off
[Disabled] Disables the function.
detected, the USB controller legacy mode is enabled. If no USB device is
detected, the legacy USB support is disabled.
(OS).
feature.
2.5.6 Onboard Devices Conguration
HD Audio Controller [Enabled]
[Enabled] Enables the High Denition Audio Controller.
[Disabled] Disables the controller.
The following two items appear only when you set the HD Audio Controller item to
[Enabled].
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Front Panel Type [HD]
Allows you to set the front panel audio connector (AAFP) mode to legacy AC’97 or high-
denition audio depending on the audio standard that the front panel audio module supports.
[HD] Sets the front panel audio connector (AAFP) mode to high denition audio.
[AC97] Sets the front panel audio connector (AAFP) mode to legacy AC’97
SPDIF Out Type [SPDIF]
Allows you to select the digital audio output type. Conguartion options: [SPIDF] [HDMI]
PCI Express x16_2 slot (Black) Bandwidth [2,0,1,1, x2...]
Allows you to select the bandwidth of PCI Express x16_2. Conguration options: [Auto]
[4,0,0,0 x4 mode] [2,0,1,1 x2 mode]
Realtek LAN Controller [Enabled]
[Enabled] Enables the Realtek LAN controller.
[Disabled] Disables the controller.
Realtek PXE OPROM [Disabled]
This item appears only when you set the Realtek LAN Controller item to [Enabled] and
allows you to enable or disable the Rom Help of the Realtek LAN controller.
Conguration options: [Enabled] [Disabled]
Asmedia USB 3.0 Controller (Back) [Enabled]
[Enabled] Enables the rear USB 3.0 controller .
[Disabled] Disables the controller.
Asmedia USB 3.0 Battery Charging Support [Disabled]
This item appears only when the Asmedia USB 3.0 Controller item is set to [Enabled].
[Enabled] Enables the Asmedia USB 3.0 battery charging function.
[Disabled] Disables this function
Serial Port Conguration
The sub-items in this menu allow you to set the serial port conguration.
Serial Port [Enabled]
Allows you to enable or disable the serial port (COM).
Conguration options: [Enabled] [Disabled]
Change Settings [IO=3F8h; IRQ=4]
Allows you to select the Serial Port base address. Conguration options: [IO=3F8h;
IRQ=4] [IO=2F8h; IRQ=3] [IO=3E8h; IRQ=4] [IO=2E8h; IRQ=3]
Chapter 2: BIOS information 2-21
Page 72
2.5.7 APM
Restore AC Power Loss [Power Off]
[Power On] The system goes into on state after an AC power loss.
[Power Off] The system goes into off state after an AC power loss.
[Last State] The system goes into either off or on state, whatever the system state was
Power On By PS/2 Keyboard [Disabled]
[Disabled] Disables the Power On by a PS/2 keyboard.
[Space Bar] Sets the Space Bar on the PS/2 keyboard to turn on the system.
[Ctrl-Esc] Sets the Ctrl+Esc key on the PS/2 keyboard to turn on the system.
[Power Key] Sets Power key on the PS/2 keyboard to turn on the system. This feature
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
Power On By PCI [Disabled]
[Disabled] Disables the PCI devices to generate a wake event.
[Enabled] Enables the PCI devices to generate a wake event.
Power On By PCIE [Disabled]
[Disabled] Disables the PCIE devices to generate a wake event.
[Enabled] Enables the PCIE devices to generate a wake event.
before the AC power loss.
requires an ATX power supply that provides at least 1A on the +5VSB lead.
power supply that provides at least 1A on the +5VSB lead.
Power On By Ring [Disabled]
[Disabled] Disables Ring to generate a wake event.
[Enabled] Enables Ring to generate a wake event.
Power On By RTC [Disabled]
[Disabled] Disables RTC to generate a wake event.
[Enabled] When set to [Enabled], the items RTC Alarm Date (Days) and Hour/
2-22 ASUS P8Z68-V LX
Minute/Second will become user-congurable with set values.
Page 73
2.6 Monitor menu
The Monitor menu displays the system temperature/power status, and allows you to change
the fan settings.
EFI BIOS Utility - Advanced Mode
Exit
Main
CPU Temperature +45ºC / +113ºF+45ºC / +113ºF
MB Temperature +34ºC / +93ºF
CPU Fan Speed 2606 RPM
Chassis Fan 1 Speed N/A
Chassis Fan 2 Speed N/A
Power Fan Speed N/A
CPU Q-Fan Control Enabled
CPU Fan Speed Low Limit 600 RPM
CPU Fan Prole Standard
Chassis Q-Fan Control Enabled
Chassis Fan Speed Low Limit 600 RPM
Chassis Fan Prole Standard
CPU Voltage +1.216 V
Ai Tweaker
Version 2.00.1201. Copyright (C) 2011 American Megatrends, Inc.
Advanced Monitor Boot Tool
Scroll down to display the following items:
3.3V Voltage +3.328 V
5V Voltage +5.160 V
12V Voltage +12.000 V
Anti Surge Support Enabled
Version 2.00.1201. Copyright (C) 2011 American Megatrends, Inc.
CPU Temperature
→←: Select Screen
↑↓: Select Item
Enter: Select
+/-: Change Opt.
F1: General Help
F2: Previous Values
F5: Optimized Defaults
F10: Save ESC: Exit
F12: Print Screen
Chapter 2: BIOS information 2-23
Page 74
2.6.1 CPU Temperature / MB Temperature [xxx�C/xxx�F][xxx�C/xxx�F]
The onboard hardware monitor automatically detects and displays the CPU and motherboard
temperatures. Select Ignore if you do not wish to display the detected temperatures.
2.6.2 CPU / Chassis / Power Fan Speed [xxxx RPM] or [Ignore] /
[N/A]
The onboard hardware monitor automatically detects and displays the CPU, chassis
and power fan speeds in rotations per minute (RPM). If the fan is not connected to the
motherboard, the eld shows N/A. Select Ignore if you do not wish to display the detected
speed.
2.6.3 CPU Q-Fan Control [Enabled]
[Disabled] Disables the CPU Q-Fan control feature.
[Enabled] Enables the CPU Q-Fan control feature.
CPU Fan Speed Low Limit [600 RPM]
This item appears only when you enable the CPU Q-Fan Control feature and allows
you to disable or set the CPU fan warning speed.
Conguration options: [Ignore] [200RPM] [300 RPM] [400 RPM] [500 RPM] [600 RPM]
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] Sets to [Turbo] to achieve maximum CPU fan speed.
[Manual] Sets to [Manual] to assign detailed fan speed control parameters.
the CPU temperature.
The following four items appear only when you set CPU Fan Prole to [Manual].
CPU Upper Temperature [70�C]
Use the <+> and <-> keys to adjust the upper limit of the CPU temperature. The values range
from 20ºC to 75ºC.
CPU Fan Max. Duty Cycle(%) [100%]
Use the <+> and <-> keys to adjust the maximum CPU fan duty cycle. The values range from
20% to 100%. When the CPU temperature reaches the upper limit, the CPU fan will operate at
the maximum duty cycle.
CPU Lower Temperature [20�C]
Use the <+> and <-> keys to adjust the lower limit of the CPU temperature. The values range
from 20ºC to 75ºC
CPU Fan Min. Duty Cycle(%) [20%]
Use the <+> and <-> keys to adjust the minimum CPU fan duty cycle. The values range from
0% to 100%. When the CPU temperature is under the lower limit, the CPU fan will operate at the
minimum duty cycle.
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2.6.4 Chassis Q-Fan Control [Enabled]
[Disabled] Disables the Chassis Q-Fan control feature.
[Enabled] Enables the Chassis Q-Fan control feature.
Chassis Fan Speed Low Limit [600 RPM]
This item appears only when you enable the Chassis Q-Fan Control feature and
allows you to disable or set the chassis fan warning speed.
Conguration options: [Ignore] [200RPM] [300 RPM] [400 RPM] [500 RPM] [600 RPM]
Chassis Fan Profile [Standard]
This item appears only when you enable the Chassis Q-Fan Control feature and
allows you to set the appropriate performance level of the chassis fan.
[Standard] Sets to [Standard] to make the chassis fan automatically adjust depending
[Silent] Sets to [Silent] to minimize the fan speed for quiet chassis fan operation.
[Turbo] Sets to [Turbo] to achieve maximum chassis fan speed.
[Manual] Sets to [Manual] to assign detailed fan speed control parameters.
Chassis Upper Temperature [70�C]
Use the <+> and <-> keys to adjust the upper limit of the CPU temperature. The values range
from 40ºC to 90ºC.
Chassis Fan Max. Duty Cycle(%) [100%]
Use the <+> and <-> keys to adjust the maximum chassis fan duty cycle. The values range
from 60% to 100%. When the chassis temperature reaches the upper limit, the chassis fan will
operate at the maximum duty cycle.
Chassis Lower Temperature [40�C]
Displays the lower limit of the chassis temperature.
CPU Fan Min. Duty Cycle(%) [60%]
Use the <+> and <-> keys to adjust the minimum chassis fan duty cycle. The values range from
60% to 100%. When the chassis temperature is under 40ºC, the chassis fan will operate at the
minimum duty cycle.
on the chassis temperature.
The following four items appear only when you set Chassis Fan Prole to [Manual].
2.6.5 CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage
The onboard hardware monitor automatically detects the voltage output through the onboard
voltage regulators. Select Ignore if you do not want to detect this item.
2.6.6 Anti Surge Support [Enabled]
This item allows you to enable or disable the Anti Surge function.
Conguration options: [Disabled] [Enabled]
Chapter 2: BIOS information 2-25
Page 76
2.7 Boot menu
The Boot menu items allow you to change the system boot options.
EFI BIOS Utility - Advanced Mode
Main
Bootup NumLock State On
Full Screen Logo Enabled
Wait For ‘F1’ If Error Enabled
Option ROM Messages Force BIOS
Setup Mode EZ Mode
Boot Option Priorities
Boot Option #1 SATA: xxxxxxx
Boot Option #2 SATA: xxxxxxx
Boot Override
> SATA: xxxxxxxxxxxx
> SATA: xxxxxxxxxxxx
> Hard Drive BBS Priorities
> CD/DVD ROM Drive BBS Priorities
Ai Tweaker
Version 2.00.1201. Copyright (C) 2011 American Megatrends, Inc.
Advanced Monitor Boot Tool
Select the keyboard NumLock state
→←: Select Screen
↑↓: Select Item
Enter: Select
+/-: Change Opt.
F1: General Help
F2: Previous Values
F5: Optimized Defaults
F10: Save ESC: Exit
F12: Print Screen
2.7.1 Bootup NumLock State [On]
[On] Sets the power-on state of the NumLock to [On].
[Off] Sets the power-on state of the NumLock to [Off].
2.7.2 Full Screen Logo [Enabled]
[Enabled] Enables the full screen logo display feature.
[Disabled] Disables the full screen logo display feature.
Exit
Set this item to [Enabled] to use the ASUS MyLogo 2™ feature.
Post Report [5 sec]
This item appears only when the Full Screen Logo item is set to [Disabled] and allows you to
set the waiting time for the system to display the post report. Conguration options: [1 sec] [2
sec] [3 sec] [4 sec] [5 sec] [6 sec] [7 sec] [8 sec] [9 sec] [10 sec] [Until Press ESC]
2.7.3 Wait for ‘F1’ If Error [Enabled]
When this item is set to [Enabled], the system waits for the F1 key to be pressed when error
occurs. Conguration options: [Disabled] [Enabled]
2-26 ASUS P8Z68-V LX
Page 77
2.7.4 Option ROM Messages [Force BIOS]
[Force BIOS] The third-party ROM messages will be forced to display during the boot
[Keep Current] The third-party ROM messages will be displayed only if the third-party
sequence.
manufacturer had set the add-on device to do so.
2.7.5 Setup Mode [EZ Mode]
[Advanced Mode] Sets Advanced Mode as the default screen for entering the BIOS setup
[EZ Mode] Sets EZ Mode as the default screen for entering the BIOS setup program.
program.
2.7.6 Boot Option Priorities
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.
• To select the boot device during system startup, press <F8> when ASUS Logo appears.
• To access Windows OS in Safe Mode, press <F8> after POST.
2.7.7 Boot Override
These items displays the available devices. The number of device items that appears on
the screen depends on the number of devices installed in the system. Click an item to start
booting from the selected device.
Chapter 2: BIOS information 2-27
Page 78
2.8 Tools menu
The Tools menu items allow you to congure options for special functions. Select an item
then press <Enter> to display the submenu.
EFI BIOS Utility - Advanced Mode
Main
> ASUS EZ Flash 2 Utility
> ASUS SPD Information
> ASUS O.C. Prole
Ai Tweaker
Advanced Monitor Boot Tool
Be used to update BIOS
Exit
2.8.1 ASUS EZ Flash Utility
Allows you to run ASUS EZ Flash 2. Press [Enter] to launch the ASUS EZ Flash 2 screen.
For more details, see section 2.1.2 ASUS EZ Flash 2.
2.8.2 ASUS SPD Information
DIMM Slot # [Slot 1]
Displays the Serial Presence Detect (SPD) information of the DIMM module installed on the
selected slot. Conguration options: [Slot 1] [Slot 2] [Slot 3] [Slot 4]
2.8.3 ASUS O.C. Prole
This item allows you to store or load multiple BIOS settings.
The Setup Prole Status items show Not Installed if no prole is created.
Save to Prole
Allows you to save the current BIOS settings to the BIOS Flash, and create a prole. Key in a
prole number from one to eight, press <Enter>, and then select Yes.
Load from Prole
Allows you to load the previous BIOS settings saved in the BIOS Flash. Key in the prole
number that saved your CMOS settings, press <Enter>, and then select Yes.
• 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
conguration and BIOS version.
2-28 ASUS P8Z68-V LX
Page 79
2.9 Exit menu
The Exit menu items allow you to load the optimal default values for the BIOS items, and
save or discard your changes to the BIOS items. You can access the EZ Mode from the Exit
menu.
Exit
Load Optimized Defaults
Save Changes & Reset
Discard Changes & Exit
ASUS EZ Mode
Launch EFI Shell from lesystem device
Load Optimized 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 conrmation window appears.
Select Yes to load the default values.
Save Changes & Reset
Once you are nished making your selections, choose this option from the Exit menu to
ensure the values you selected are saved. When you select this option or if you press <F10>,
a conrmation window appears. Select Yes to save changes and exit.
Discard Changes & Exit
This option allows you to exit the Setup program without saving your changes. When youWhen you
select this option or if you press <Esc>, a conrmation window appears. Select Yes to
discard changes and exit..
ASUS EZ Mode
This option allows you to enter the EZ Mode screen.
Launch EFI Shell from lesystem device
This option allows you to attempt to launch the EFI Shell application (shellx64.e) from one of
the available devices that have a lesystem.
Chapter 2: BIOS information 2-29
Page 80
2-30 ASUS P8Z68-V LX
Page 81
ASUS contact information
ASUSTeK Computer Inc.
Address 15 Li-Te Road, Peitou, Taipei, Taiwan 11259
Telephone +886-2-2894-3447
Fax +886-2-2890-7798
E-mail info@asus.com.tw
Web site www.asus.com.tw
Technical Support
Telephone +86-21-38429911
Online support support.asus.com
ASUS Computer International (America)
Address 800 Corporate Way, Fremont, CA 94539, USA
Telephone +1-510-739-3777
Fax +1-510-608-4555
Web site usa.asus.com
Technical Support
Telephone +1-812-282-2787
Support fax +1-812-284-0883
Online support support.asus.com
ASUS Computer GmbH (Germany and Austria)
Address Harkort Str. 21-23, D-40880 Ratingen, Germany
Fax +49-2102-959911
Web site www.asus.de
Online contact www.asus.de/sales
Technical Support
Telephone (Component) +49-1805-010923*
Telephone (System/Notebook/Eee/LCD) +49-1805-010920*
Support Fax +49-2102-9599-11
Online support support.asus.com
* EUR 0.14/minute from a German xed landline; EUR 0.42/minute from a mobile phone.
Page 82
DECLARATION OF CONFORMITY
Per FCC Part 2 Section 2. 1077(a)
Responsible Party Name: Asus Computer International
Address: 800 Corporate Way, Fremont, CA 94539.
Phone/Fax No: (510)739-3777/(510)608-4555
hereby declares that the product
Product Name : Motherboard
Model Number : P8Z68-V LX
Conforms to the following specifications:
FCC Part 15, Subpart B, Unintentional Radiators
FCC Part 15, Subpart C, Intentional Radiators
FCC Part 15, Subpart E, Intentional Radiators
Supplementary Information:
This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
Representative Person’s Name : Steve Chang / President
Signature :
Date : Jul. 21, 2011
Ver. 110101
EC Declaration of Conformity
We, the undersigned,
Manufacturer:
ASUSTek COMPUTER INC.
Address, City:
No. 150, LI-TE RD., PEITOU, TAIPEI 112, TAIWAN R.O.C.
Country:
TAIWAN
Authorized representative in Europe:
ASUS COMPUTER GmbH
Address, City: HARKORT STR. 21-23, 40880 RATINGEN
Country:
GERMANY
declare the following apparatus:
Product name : Motherboard
Model name : P8Z68-V LX
conform with the essential requirements of the following directives:
2004/108/EC-EMC Directive
EN 55022:2006+A1:2007
EN 61000-3-2:2006
EN 55013:2001+A1:2003+A2:2006
EN 55024:1998+A1:2001+A2:2003
EN 61000-3-3:2008
EN 55020:2007
1999/5/EC-R &TTE Directive
EN 300 328 V1.7.1(2006-05)
EN 300 440-1 V1.4.1(2008-05)
EN 300 440-2 V1.2.1(2008-03)
EN 301 511 V9.0.2(2003-03)
EN 301 908-1 V3.2.1(2007-05)
EN 301 908-2 V3.2.1(2007-05)
EN 301 893 V1.4.1(2005-03)
EN 302 544-2 V1.1.1(2009-01)
EN 50360:2001
EN 50371:2002
EN 50385:2002
EN 301 489-1 V1.8.1(2008-04)
EN 301 489-3 V1.4.1(2002-08)
EN 301 489-4 V1.3.1(2002-08)
EN 301 489-7 V1.3.1(2005-11)
EN 301 489-9 V1.4.1(2007-11)
EN 301 489-17 V2.1.1(2009-05)
EN 301 489-24 V1.4.1(2007-09)
EN 302 326-2 V1.2.2(2007-06)
EN 302 326-3 V1.3.1(2007-09)
EN 301 357-2 V1.3.1(2006-05)
EN 302 623 V1.1.1(2009-01)
2006/95/EC-LVD Directive
EN 60950-1:2006
EN 60950-1:2006+A11:2009
EN 60065:2002+A1:2006+A11:2008
2009/125/EC-ErP Directive
Regulation (EC) No. 1275/2008
EN 62301:2005
Regulation (EC) No. 642/2009
EN 62301:2005
Regulation (EC) No. 278/2009
EN 62301:2005
Ver. 110101
CE marking
Declaration Date: Jul. 21, 2011
Year to begin affixing CE marking:2011
Position : CEO
Name : Jerry Shen
Signature : __________
EC conformit
y
markin
g)
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