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,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS,
LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE),
EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY
DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR
INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE,
AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO
RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS
MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.
Products and corporate names appearing in this manual may or may not be registered trademarks or
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owners’ benet, without intent to infringe.
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
product is distributed without any warranty. Copies of these licenses are included in this product.
You may obtain the complete corresponding source code (as dened in the GPL) for the GPL Software,
and/or the complete corresponding source code of the LGPL Software (with the complete machinereadable “work that uses the Library”) for a period of three years after our last shipment of the product
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;
or
(2) for the cost of reproduction and shipment, which is dependent on the preferred carrier and the location
where you want to have it shipped to, by sending a request to:
ASUSTeK Computer Inc.
Legal Compliance Dept.
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In your request please provide the name, model number and version, as stated in the About Box of the
product for which you wish to obtain the corresponding source code and your contact details so that we
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product and describing the problem (please do NOT send large attachments such as source code archives
etc to this email address).
ii
Contents
Safety information ...................................................................................................... vi
About this guide ........................................................................................................ vii
P8H77-V specications summary ............................................................................. ix
• To prevent electrical shock hazard, disconnect the power cable from the electrical outlet
before relocating the system.
• When adding or removing devices to or from the system, ensure that the power cables
for the devices are unplugged before the signal cables are connected. If possible,
disconnect all power cables from the existing system before you add a device.
• Before connecting or removing signal cables from the motherboard, ensure that all
power cables are unplugged.
• Seek professional assistance before using an adapter or extension cord. These devices
could interrupt the grounding circuit.
• Ensure that your power supply is set to the correct voltage in your area. If you are not
sure about the voltage of the electrical outlet you are using, contact your local power
company.
• If the power supply is broken, do not try to x it by yourself. Contact a 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 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.
vi
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: Hardware information
This chapter lists the hardware setup procedures that you have to perform when
installing system components. It includes description of the switches, jumpers, and
connectors on the motherboard.
• Chapter 3: BIOS setup
This chapter tells how to change system settings through the BIOS Setup menus.
Detailed descriptions of the BIOS parameters are also provided.
• Chapter 4: Software support
This chapter describes the contents of the support DVD that comes with the
motherboard package and the software.
• Chapter 5: Multiple GPU technology support
This chapter describes how to install and congure multiple ATI® CrossFireX™
graphics cards.
Where to nd more information
Refer to the following sources for additional information and for product and software updates.
1. ASUS websites
The ASUS website provides updated information on ASUS hardware and software
products. Refer to the ASUS contact information.
2. Optional documentation
Your product package may include optional documentation, such as warranty yers,
that may have been added by your dealer. These documents are not part of the
standard package.
vii
Conventions used in this guide
To ensure that you perform certain tasks properly, take note of the following symbols used
throughout this manual.
DANGER/WARNING: Information to prevent injury to yourself when trying to
complete a task.
CAUTION: Information to prevent damage to the components when trying to
complete a task.
IMPORTANT: Instructions that you MUST follow to complete a task.
NOTE: Tips and additional information to help you complete a task.
Typography
Bold text Indicates a menu or an item to select.
Italic
s Used to emphasize a word or a phrase.
<Key> Keys enclosed in the less-than and greater-than sign means
<Key1> + <Key2> + <Key3> If you must press two or more keys simultaneously, the key
names are linked with a plus sign (+).
Example: <Ctrl> + <Alt> + <Del>
that you must press the enclosed key.
Example: <Enter> means that you must press the Enter or
Return key.
* DDR3 1600 MHz and higher memory frequency is supported by Intel®
3rd generation processors.
** Due to the CPU behavior, DDR3 2133/1866 MHz memory module will
run at DDR3 2000/1800 MHz frequency as default.
*** Refer to www.asus.com for the latest Memory QVL (Qualied Vendors
List).
**** 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.
1 x PCI Express 3.0* x16 slot [blue] (at x16 mode)
1 x PCI Express 2.0 x16 slots [black] (at x4 mode, compatible with
PCIe x1 and x4 devices)
2 x PCI Express 2.0 x1 slots
3 x PCI slots
* PCIe 3.0 speed is supported by Intel® 3rd generation Core™
processors.
Integrated graphics processor - Intel® HD Graphics support
Multi-VGA output support: HDMI, DisplayPort, DVI-D, RGB ports
Supports HDMI with max. resolution of 1920 x 1200 @60Hz
Supports DisplayPort 1.1a with max. resolution of 2560 x 1600 @60Hz
Supports DVI with max. resolution of 1920 x 1200 @60Hz
Supports RGB with max. resolution of 2048 x 1536 @75Hz
Supports Intel® InTru™ 3D/Quick Sync Video/Clear Video HD
Technology/Insider™
Maximum shared memory of 1696 MB
* Supports on Intel® Core™ processor family with Windows® 7
operating systems.
Qualcomm Atheros® 8161 PCIe Gigabit LAN controller
(continued on the next page)
ix
P8H77-V specications summary
Audio
USB
ASUS unique features
ASUS exclusive
overclocking features
VIA® VT1708S 8-channel high denition audio CODEC
- Supports jack-detection, multi-streaming and front panel
jack-retasking
- Optical S/PDIF out port at back I/O
Intel® H77 Express Chipset - supports ASUS USB 3.0 Boost Turbo
Mode and UASP Mode*
- 2 x USB 3.0/2.0 ports at mid-board for front panel support
- 2 x USB 3.0/2.0 ports at back panel (blue)
Intel® H77 Express Chipset
- 10 x USB 2.0/1.1 ports (6 ports at mid-board, 4 ports at back
panel)
* The USB 3.0 ports only support Windows® 7 or later versions.
UASP standard only supports Windows® 8.
ASUS DIGI+ VRM
- ASUS DIGI+ VRM: Digital Power Design for the CPU and iGPU
- ASUS 6+1+2 Phase Power Design
ASUS Protect 3.0
- EPU
- ASUS Anti-Surge Protection
- Low EMI
- ESD
- 100% All high quality conductive polymer capacitors
ASUS Exclusive Features:
- ASUS AI Suite II
- TurboV
- GPU Boost
- MemOK!
- ASUS UEFI BIOS EZ Mode featuring graphics user interface
- USB 3.0 Boost featuring the latest USB 3.0 UASP standard
ASUS Quiet Thermal Solution:
- ASUS Fanless Design: Stylish heatsink solution and MOS heatsink
- ASUS Fan Xpert
ASUS EZ DIY:
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 2 ASUS EZ Flash 2
- ASUS MyLogo 2™
ASUS Q-Design:
- ASUS Q-Slot
Precision Tweaker 2:
- vCore: Adjustable CPU voltage at 0.005V increment
- vCCSA: 191-step system agent voltage control
- vDRAM Bus: 191-step Memory voltage control
- vPCH: 191-step Chipset voltage control
- iGPU: 127-step iGPU voltage control
- vCPU_PLL: 1-step CPU & PCH PLL voltage control
SFS (Stepless Frequency Selection):
- BCLK/PCIE frequency tuning from 80MHz up to 300MHz at 1MHz
increment
Overclocking Protection:
- ASUS C.P.R.(CPU Parameter Recall)
(continued on the next page)
x
P8H77-V specications summary
Back panel I/O ports1 x PS/2 keyboard / mouse combo port
Internal I/O connectors1 x USB 3.0/2.0 connector supports additional 2 USB ports (19-pin)
BIOS features64 Mb Flash ROM, UEFI AMI BIOS, PnP, DMI 2.0, WfM 2.0, SM
ManageabilityWfM 2.0, DMI 2.0, WOL by PME, WOR by PME, PXE
Accessories2 x Serial ATA 6.0Gb/s cables
Support DVD contentsDrivers
Form factorATX form factor: 12 in. x 8.9 in. (30.5 cm x 22.6 cm)
1 x Optical S/PDIF output port
1 x HDMI port
1 x DVI-D port
1 x D-Sub port
1 x DisplayPort
1 x LAN (RJ-45) port
4 x USB 2.0/1.1 ports
2 x USB 3.0/2.0 ports
6-Jack 8-channel audio I/O ports
3 x USB 2.0/1.1 connectors support additional 6 USB ports
2 x SATA 6.0 Gb/s connectors (gray)
4 x SATA 3.0 Gb/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 (AAFP)
1 x COM connector
1 x S/PDIF output connector
1 x 24-pin EATX power connector
1 x 8-pin EATX 12V power connector
1 x System panel connector
1 x GPU Boost switch
1 x MemOK! button
1 x Clear CMOS jumper
BIOS 2.6, ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2,
ASUS CrashFree BIOS 3, F12 PrintScreen Function, F3 Shortcut
function, and ASUS DRAM SPD (Serial Presence Detect)
memory information
1 x I/O shield
1 x User Manual
1 x Support DVD
ASUS Utilities
ASUS Update
Anti-virus software (OEM version)
*Specications are subject to change without notice.
xi
xii
Chapter 1
User Manual
Chapter 1: Product introduction
1.1 Welcome!
Thank you for buying an ASUS® P8H77-V motherboard!
The motherboard delivers a host of new features and latest technologies, making it another
standout in the long line of ASUS quality motherboards!
Before you start installing the motherboard, and hardware devices on it, check the items in
your package with the list below.
1.2 Package contents
Check your motherboard package for the following items.
ASUS P8H77-V motherboardUser manualSupport DVD
Chapter 1
2 x Serial ATA 6.0 Gb/s cables1 x I/O shield
ASUS P8H77-V
• If any of the above items is damaged or missing, contact your retailer.
• The illustrated items above are for reference only. Actual product specications may
This motherboard supports the Intel® 3rd/2nd generation Core™ i7/i5/i3/Pentium®/Celeron®
processors in the LGA1155 package, with iGPU, memory, and PCI Express controllers
integrated to support onboard graphics out with dedicated chipsets, 2-channel (4 DIMMs)
DDR3 memory, and 16 PCI Express 3.0/2.0 lanes. This provides great graphics performance.
Intel® 3rd/2nd generation Core™ i7/i5/i3/Pentium®/Celeron® processors are among the most
powerful and energy efcient CPUs in the world.
Intel® H77 Express Chipset
The Intel® H77 Express Chipset is a single-chipset designed to support the 1155 socket
Intel® 3rd/2nd generation Core™ i7/i5/ i3/Pentium®/Celeron® processors. It provides improved
performance by utilizing serial point-to-point links, allowing increased bandwidth and stability.
Additionally, H77 chipset provides 4 USB 3.0 ports for 10 times faster data retrieval speed.
Moreover, IntelIntel® H77 Express Chipset can also enable iGPU function, letting users enjoy the
latest Intel® integrated graphic performance.
PCI Express® 3.0
PCI Express® 3.0 (PCIe 3.0) is the latest PCI Express bus standard with improved encoding
schemes that provide twice the performance of the current PCIe 2.0. The total bandwidth
for a x16 link reaches a maximum of 32Gb/s, double the 16 Gb/s of PCIe 2.0 (in x16 mode).
As such, PCIe 3.0 provides userss an unprecendented data speeds, combined with the
convenience and seamless transition offerred by complete backward compatibility with PCIe
1.0 and PCIe 2.0 devices. PCIe 3.0 will become a must-have feature for users who wish to
improve and optimize graphic performance, as well as have the latest technology available to
them.
* PCI 3.0 speed is supported by Intel® 3rd generation Core™ processors.
Intel® Smart Response Technology
SSD Speed with HDD Capacity
Intel® Smart Response Technology boosts overall system performance by using 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 6X faster than a hard drive-only system.
* Intel® Smart Response Technology is supported by 3rd/2nd generation Intel® Core™ processor
family on Windows® 7™ operating systems.
** Operating systems must be installed on the HDD to launch Intel® Smart Response Technology.
The capacity of the SSD is reserved for caching function.
Intel® Smart Connect Technology
Your computer could receive web updates with fresh content for selected applications, even
when setting the system to sleep. This means less time waiting for applications to start,
update and sync with the cloud, providing a more efcient way.
1-2
Chapter 1: Product Introduction
Intel® Rapid Start Technology
Allows your computer to quickly resume from a lowe-power hibernate state in seconds.
Saving system memory to the designed SSD, provides your computer a faster wake-up
response time, while keeping the energy use low.
Quad-GPU CrossFireX™ Support
The motherboard’s powerful Intel® H77 platform optimizes PCIe allocation in multiple-GPU
congurations of CrossFireX™. This allows you to enjoy a never before-experienced brand
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.
Complete USB 3.0 Integration
Double USB Access, Double Convenience
ASUS facilitates the strategic USB 3.0 accessibility for both the front and rear panel – 4 USB
3.0 ports in total. Experience the latest plug & play connectivity at speeds up to 10 times
faster than USB 2.0. The P8H77-V affords greater convenience to high speed connectivity.
SATA 6.0 Gb/s Support
The Intel® H77 Express Chipset natively supports the next-generation Serial ATA (SATA)
interface, delivering up to 6.0 Gb/s data transfer. ASUS provides SATA 6.0 Gb/s ports with
enhanced scalability, faster data retrieval, and double the bandwidth of current bus systems.
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.
100% All High-quality Conductive Polymer Capacitors
This motherboard uses all high-quality conductive polymer capacitors for durability, improved
lifespan, and enhanced thermal capacity.
Chapter 1
1.3.2 ASUS Exclusive Features
ASUS DIGI+ VRM
Digital Power Control: Digital Power Design for the CPU and iGPU
All-new digital CPU power controls work perfectly together to match digital power signal
(SVID) requests from the CPU, with ultra-fast sensing and response efciently delivering
precision power. Accurate delivery reduces waste, and provides more stable CPU Vcore
voltages. Users can adjust CPU and its processor graphics (iGPU) voltages for various
overclocking scenarios, with accurate input through UEFI BIOS tuning or the exclusive ASUS
interface. This proprietary design increases overclocking headroom to push performance to
its full potential.
ASUS P8H77-V
1-3
EPU
Energy Efciency All Around
Tap into the world’s rst real-time PC power saving chip through the AI Suite II utility. Get
Chapter 1
total system-wide energy optimization by automatically detecting current PC loadings and
intelligently moderating power consumption. This also reduces fan noise and extends
component longevity.
GPU Boost
Go to the Limit with iGPU Level Up!
GPU Boost accelerates the integrated GPU for extreme graphics performance. The user-
friendly interface facilitates exible frequency adjustments. It easily delivers stable system-
level upgrades for every use.
MemOK!
Any Memory is A-OK!
MemOK! quickly ensures memory boot compatibility. This remarkable memory rescue tool
requires a mere push of a button to patch memory issues. MemOK! determines fail-safe
settings and dramatically improves your system boot success. Get your system up and
running in no time!
USB 3.0 Boost
Faster USB 3.0 Transmission with UASP
New ASUS USB 3.0 Boost technology supports UASP (USB Attached SCSI Protocol), the
latest USB 3.0 standard. With USB 3.0 Boost technology, a USB device’s transmission speed
is signicantly increased up to 170%, adding to an already impressive fast USB 3.0 transfer
speed. ASUS software automatically accelerates data speeds for compatible USB 3.0
peripherals without the need for any user interaction.
AI Suite II
One-stop Access to Innovative ASUS Features
With its user-friendly interface, ASUS AI Suite II consolidates all the exclusive ASUS features
into one simple to use software package. It allows you to supervise overclocking, energy
management, fan speed control, and voltage and sensor readings. This all-in-one software
offers diverse and ease to use functions, with no need to switch back and forth between
different utilities.
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.
ASUS Anti-Surge Protection
This special design prevents expensive devices and the motherboard from damage caused
by power surges from switching power supply (PSU).
1-4
Chapter 1: Product Introduction
1.3.3 ASUS Quiet Thermal Solution
Fanless Design: stylish heatsink solution
The stylish heatsink 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 heatsink will give users an extremely silent and cooling experience with the elegant
appearance!
ASUS Fan Xpert
ASUS Fan Xpert intelligently allows you to adjust the CPU fan 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.
1.3.4 ASUS EZ DIY
ASUS UEFI BIOS
Flexible and Easy BIOS Interface
ASUS UEFI BIOS offers the rst mouse-controlled graphical BIOS designed with selectable
modes, providing a user-friendly interface that goes beyond the traditional keyboard-only
controls. It also natively supports fully-utilized hard drives larger than 2.2TB in 64-bit
operating systems.
ASUS exclusive interface
EZ Mode displays frequently-accessed info. Users can choose system performance settings,
and drag and drop boot priorities. Advanced Mode for performance enthusiasts includes
detailed DRAM settings via a dedicated memory info page for complete insight.
New upgrade! Quick and easy information for enhanced system control
- F12 BIOS snapshot hotkey for sharing UEFI information and troubleshooting
- New F3 Shortcut for most accessed information
- ASUS DRAM SPD (Serial Presence Detect) information for accessing memory
information, detecting faulty DIMMs, and helping with difcult POST situations.
Chapter 1
ASUS MyLogo2™
This feature allows you to convert your favorite photo into a 256-color boot logo for a more
colorful and vivid image on your screen.
ASUS 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 user-friendly utility that allows you to update the BIOS without using a
bootable oppy disk or an OS-based utility.
ASUS P8H77-V
1-5
ASUS Q-Slot
ASUS Q-Slot is designed to speed up and simplify the DIY process to enhance your DIY
experience.
Chapter 1
1.3.5 Other special features
LucidLogix Virtu MVP
LucidLogix Virtu MVP featuring HyperFormance™ Technology boosts your PCIe graphics
card up to 60% beyond its original performance. Designed for Intel
Windows® 7 PCs, it perfectly combines the performance of discrete graphic cards with fast
computing iGPU. Also, with newly designed Virtual Sync, users can enjoy a smoother gaming
experience by eliminating tearing artifacts. LucidLogix Virtu MVP can also dynamically
assigns tasks to the best available graphics resource, based on power, performance, and
system load. This allows users to fully utilize 3x faster video conversion with Intel
Sync Video technology while retaining high-end 3D rendering and gaming performance,
provided by both NVIDIA and AMD graphic cards. When the PCIe graphic cards are not
required, the graphics control switches to the Intel® processor graphics, reducing the PCIe
graphics power use down to zero, making the system more environment-friendly. For users
searching for perfection, LucidLogix Virtu MVP provides great graphical performance, and
best quality and efciency.
* LucidLogix Virtu MVP supports Windows
** Intel® Quick Sync Video feature is supported by 3rd/2nd generation Intel® Core™ processor
family.
DisplayPort 1.1a Support
DisplayPort is a digital display interface standard that delivers up to 10.8 Gbps of bandwidth
over standard cables, providing billions of colors and bi-directional communications, thus
enabling the fastest refresh rates, and the highest resolution digital display through a single
cable. Also, it supports HDCP copy protection for Blu-ray discs. Simply output 3D signals
through the connected DisplayPort 1.1a cable with your 3D display, then you can sit back and
enjoy a perfect 3D animation experience.
®
7 operating system.
®
processor graphics and
®
Quick
HDMI Support
Enjoy Full HD 1080p Multimedia Home-Theater Entertainment
High Denition Multimedia Surface (HDMI) is a set of digital video standards that delivers
mulit-channel audio and uncompressed digital video for full HD 1080p visuals through a
single cable. Supporting HDCP copy protection such as HD DVD and blu-ray discs, HDMI
provides you with the highest quality home theater experience.
ErP Ready
The motherboard is European Union’s Energy-related Products (ErP) ready, and ErP requires
products to meet certain energy efciency requirement 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.
1-6
Chapter 1: Product Introduction
Chapter 2
Chapter 2: Hardware information
2.1 Before you proceed
Take note of the following precautions before you install motherboard components or change
any motherboard settings.
• Unplug the power cord from the wall socket before touching any component.
• Before handling components, use a grounded wrist strap or touch a safely grounded
object or a metal object, such as the power supply case, to avoid damaging them due
to static electricity.
• Hold components by the edges to avoid touching the ICs on them.
• Whenever you uninstall any component, place it on a grounded antistatic pad or in the
bag that came with the component.
• Before you install or remove any component, ensure that the ATX power supply is
switched off or the power cord is detached from the power supply. Failure to do so
may cause severe damage to the motherboard, peripherals, or components.
ASUS P8H77-V
2-1
2.2 Motherboard overview
P8H77-V
PCIEX16_1
PCIEX16_2
PCIEX1_2
PCIEX1_1
PCI1
PCI2
PCI3
USB56USB78USB910
USB3_34
PANEL
SPDIF_OUT
CHA_FAN1
CHA_FAN2
CPU_FAN
Lithium Cell
CMOS Power
Super
I/O
VIA
VT1708S
DIGI
+VRM
AR
8161
COM1
64Mb
BIOS
SB_PWR
CLRTC
22.6cm(8.9in)
30.5cm(12.0in)
Intel
®
H77
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
SATA3G_3 SATA3G_2 SATA3G_1
SATA6G_2SATA3G_4SATA6G_1
MemOK!
DRAM_LED
EATXPWR
LGA1155
AUDIO
KB_USB3_34
LAN1_USB12
SPDIF_O
_HDMI
_DP
DVI_VGA
AAFP
PWR_FAN
EATX12V
GPU_Boost
GPU_LED
126134
1
7
2
11
10
171816151413
9
5
8
12
2.2.1 Motherboard layout
Chapter 2
Refer to
2.2.8 Internal connectors
information about rear panel connectors and internal connectors.
and
2.3.10 Rear panel connection
for more
2-2
Chapter 2: Hardware information
Layout contents
Connectors/Jumpers/SlotsPage
1. CPU, chassis, and power fan connectors (4-pin CPU_FAN,
4-pin CHA_FAN1/2, 3-pin PWR_FAN)
2. ATX power connectors (24-pin EATXPWR, 8-pin EATX12V)2-25
3. Intel® LGA1155 CPU socket2-4
4. GPU Boost switch2-17
5. GPU Boost LED2-18
6. DDR3 DIMM slots 2-5
7. MemOK! switch2-16
8. DRAM LED (DRAM_LED)2-18
9. USB 3.0 connector (20-1 pin USB3_34)2-21
10. Onboard LED (SB_PWR)2-17
11. Intel® H77 Serial ATA 3.0Gb/s connectors
(7-pin SATA3G_1~4 [blue])
12. Intel® H77 Serial ATA 6.0Gb/s connectors
(7-pin SATA6G_1/2 [gray])
13. System panel connector (20-8 pin PANEL)2-26
14. Clear RTC RAM (3-pin CLRTC)2-15
15. USB 2.0 connectors (10-1 pin USB56, USB78, USB910)2-21
16. Serial port connector (10-1 pin COM1)2-22
17. Front panel audio connector (10-1 pin AAFP)2-24
18. Digital audio connector (4-1 pin SPDIF_OUT)2-22
2-23
2-20
2-19
Chapter 2
ASUS P8H77-V
2-3
2.2.2 Central Processing Unit (CPU)
P8H77-V
P8H77-V CPU socket LGA1155
The motherboard comes with a surface mount LGA1155 socket designed for the Intel®
3rd/2nd Generation Core™ i7 / Core™ i5 / Core™ i3 / Pentium / Celeron Processors.
Chapter 2
Ensure that all power cables are unplugged before installing the CPU.
• The LGA1156 CPU is incompatible with the LGA1155 socket. DO NOT install a
LGA1156 CPU on the LGA1155 socket.
• 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.
2-4
Chapter 2: Hardware information
2.2.3 System memory
P8H77-V
P8H77-V 240-pin DDR3 DIMM sockets
DIMM_A1
DIMM_A2
DIMM_B1
DIMM_B2
The motherboard comes with four Double Data Rate 3 (DDR3) Dual Inline Memory Modules
(DIMM) slots.
A DDR3 module is notched differently from a DDR or DDR2 module. DO NOT install a DDR
or DDR2 memory module to the DDR3 slot.
Recommended memory congurations
Chapter 2
ASUS P8H77-V
2-5
Memory congurations
You may install 1GB, 2GB, 4GB and 8GB unbuffered and non-ECC DDR3 DIMMs into the
DIMM sockets.
Chapter 2
• 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.
• According to Intel CPU spec, DIMM voltage below 1.65V is recommended to protect
the CPU.
• Always install DIMMs with the same CAS latency. For optimum compatibility, we
recommend that you obtain memory modules from the same vendor.
• Due to the memory address limitation on 32-bit Windows OS, when you install 4GB
or more memory on the motherboard, the actual usable memory for the OS can be
about 3GB or less. For effective use of memory, we recommend that you do any of the
following:
- Use a maximum of 3GB system memory if you are using a 32-bit Windows OS.
- Install a 64-bit Windows OS when you want to install 4GB or more on the
motherboard.
For more details, refer to the Microsoft® support site at
http://support.microsoft.com/kb/929605/en-us.
• This motherboard does not support DIMMs made up of 512Mb (64MB) chips or less
(Memory chip capacity counts in Megabit, 8 Megabit/Mb = 1 Megabyte/MB).
• The default memory operation frequency is dependent on its Serial Presence Detect
(SPD), which is the standard way of accessing information from a memory module.
Under the default state, some memory modules for overclocking may operate at a
lower frequency than the vendor-marked value. To operate at the vendor-marked
or at a higher frequency, refer to section
3.4 Ai Tweaker menu
for manual memory
frequency adjustment.
• For system stability, use a more efcient memory cooling system to support a full