Asus Computer Hardware P8H77 I User Manual

P8H77-I  
Contents  
iii  
Contents  
iv  
Contents  
v
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 fix it by yourself. Contact a qualified 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 qualified service  
technician or your retailer.  
vi  
 
About this guide  
This user guide contains the information you need when installing and configuring 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.  
Where to find 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 flyers,  
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  
Italics  
Indicates a menu or an item to select.  
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>  
viii  
P8H77-I specifications summary  
CPU  
LGA1155 Socket for Intel® 3rd/2nd Generation Core™ i7 / i5 / i3 /  
Pentium® / Celeron® Processors  
Supports Intel® Turbo Boost Technology 2.0*  
*The Turbo Boost Technology 2.0 support depends on the CPU types.  
** Refer to www.asus.com for Intel® CPU support list.  
Chipset  
Memory  
Intel® H77 Express Chipset  
2 x U-DIMM, maximum 16GB*, DDR3 2200(O.C.)/2133(O.C.)/2200(O.  
C.)/2000(O.C.)/1866(O.C.)/1800(O.C.)/1600/1333/1066 MHz, non-  
ECC, un-buffered memory  
Dual-channel memory architecture  
*
DDR3 1600 MHz and above memory frequency is supported by  
Intel® 3rd generation processors.  
** The maximum 16GB memory capacity can be supported with  
8GB or above DIMMs. ASUS will update the memory QVL  
once the DIMMs are available in the market.  
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.  
Expansion slots 1 x PCI Express 3.0/2.0 x16 slot  
This motherboard is ready to support PCIe 3.0 SPEC. Functions will  
*
be available when using PCIe 3.0-compliant devices. Please refer  
to www.asus.com for updated details.  
Graphics  
Storage  
Supports HDMI with max. resolution up to 1920 x 1200 @60Hz  
Supports DVI with max. resolution up to 1920 x 1200 @60Hz  
Supports D-Sub with max. resolution up to 2048 x 1536 @75Hz  
Intel® H77 Express Chipset:  
-
-
2 x Serial ATA 6.0 Gb/s connectors (gray)  
4 x Serial ATA 3.0 Gb/s connectors (blue)  
-
Support RAID 0, 1, 5, 10 Mode  
Realtek® RTL8111F Gigabit LAN controller  
LAN  
Audio  
VIA® 8-channel High Definition Audio CODEC  
-
Supports Multi-Streaming, and Front Panel Jack-Retasking  
USB  
4 x USB 3.0 ports (2 ports at mid-board, 2 ports at back panel)  
8 x USB 2.0/1.1 ports (2 ports at mid-board, 6 ports at back panel)  
Back Panel I/O  
Ports  
1 x PS/2 Keyboard/Mouse port  
1 x HDMI Output port  
1 x DVI-D Output port  
1 x D-SUB Output port  
1 x LAN (RJ45) port  
2 x USB 3.0 ports  
6 x USB 2.0/1.1 ports  
1 x Optical S/PDIF Out  
3 x Audio jack(s)  
(continued on the next page)  
ix  
 
P8H77-I specifications summary  
Internal I/O Connector 1 x USB 2.0 connectors support additional 2 USB 2.0 ports  
1 x USB 3.0 connectors support additional 2 USB 3.0 ports  
2 x SATA 6Gb/s connectors  
4 x SATA 3Gb/s connectors  
1 x 4pin CPU Fan connector  
1 x 4pin Chassis Fan connector  
1 x Front Panel Audio connector  
1 x System Panel connector  
1 x 24-pin ATX Power connector  
1 x 4-pin ATX 12V Power connector  
1 x S/PDIF Out connector  
1 x Clear CMOS jumper(s)  
1 x Speaker header  
BIOS  
64 Mb Flash ROM, AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS  
2.5, ACPI 2.0a  
Manageability  
Accessories  
WOL by PME, PXE  
2 x Serial ATA 6.0Gb/s cables  
1 x I/O Shield  
1 x User’s manual  
1 x Support DVD  
Support DVD  
Form Factor  
Drivers  
ASUS Utilities  
ASUS Update  
Anti-virus software (OEM version)  
Mini-ITX Form Factor, 6.7”x 6.7” (17.0cm x 17.0cm)  
* Specifications are subject to change without notice.  
x
Chapter 1  
Product introduction  
1.1  
Welcome!  
Thank you for buying an ASUS® P8H77-I 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  
Cables  
ASUS P8H77-I motherboard  
2 x Serial ATA 6.0Gb/s cables  
1 x I/O shield  
Accessories  
Application DVD  
Documentation  
ASUS motherboard support DVD  
User Manual  
If any of the above items is damaged or missing, contact your retailer.  
1.3  
Special features  
1.3.1  
Product highlights  
Intel® LGA1155 Intel® Third / Second Generation Core™ i7 / i5  
/ i3 / Pentium® / Celeron® Processors  
This motherboard supports the Intel® 3rd / 2nd generation Core™ i7 / i5  
/ i3 / Pentium® / Celeron® Processors in LGA1155 package with iGPU,  
memory and PCI Express controllers integrated to support 2-channel (2  
DIMMs) DDR3 memory, and 16 PCI Express 3.0/2.0 lanes. This provides  
great graphics performance. Intel® 3rd / 2nd Core™ i7 / i5 / i3 / Pentium®  
/ Celeron® processors are among the most powerful and energy efficient  
CPUs in the world.  
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ASUS P8H77-I  
 
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, Intel® H77 Express Chipset can also  
enable iGPU function, letting users enjoy the latest Intel® integrated  
graphic performance.  
Dual-Channel DDR3 2200(O.C.)* /2133(O.C.)* /2000(O.C.)*  
/1866(O.C.)* /1800(O.C.)* /1600 / 1333 / 1066MHz support  
The motherboard supports DDR3 memory that features data transfer  
rates of 2200(O.C.)* /2133(O.C.)* /2000(O.C.)* /1866(O.C.)* /1800(O.  
C.)* /1600 / 1333 / 1066 MHz to meet the higher bandwidth requirements  
of the latest 3D graphics, multimedia, and Internet applications. The  
dual-channel DDR3 architecture enlarges the bandwidth of your system  
memory to boost system performance.  
Native SATA 6.0 Gb/s support  
The Intel® H77 Express Chipset natively supports next-generation Serial  
ATA (SATA) storage interface. This motherboard delivers up to 6.0 Gb/s  
data transfer rates. Additionally, get enhanced scalability, faster data  
retrieval, double the bandwidth of current bus systems.  
Complete USB 3.0 Integration  
ASUS facilitates 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. This  
motherboard affords greater convenience to high speed connectivity.  
PCIe 3.0 Ready  
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 CoreTM processors.  
1-2  
Chapter 1: Product introduction  
HDMI Support  
Enjoy Full HD 1080p Multimedia Home-Theater Entertainment  
High Definition 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.  
Intel® Smart Response Technology  
SSD Speed with HDD Capacity  
Intel® 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 benefits 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 eco-  
friendly computing.  
1.3.2  
Innovative ASUS features  
ASUS UEFI BIOS  
The new ASUS UEFI BIOS is an Unified Extensible Firmware Interface  
that offers a user-friendly interface that goes beyond traditional keyboard-  
only BIOS controls to enable more flexible and convenient mouse input.  
Users can easily navigate the new UEFI BIOS with the same smoothness  
as their operating system. It natively supports hard drives larger than  
2.2TB in 64-bit, with full storage space utilization, helping deliver far more  
exciting computing than traditional BIOS versions.  
The exclusive EZ Mode displays frequently-accessed setup info, while  
the Advanced Mode is for experienced performance enthusiasts that  
demand far more intricate system settings.  
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 file using the bundled support DVD or USB  
flash disk that contains the latest BIOS file.  
ASUS EZ Flash 2  
ASUS EZ Flash 2 is a utility that allows you to update the BIOS without  
using an OS-based utility.  
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ASUS P8H77-I  
 
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 significantly 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.  
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 flexible frequency  
adjustments. It easily delivers stable system-level upgrades for every use.  
ASUS Q-Fan 2  
ASUS Q-Fn 2 technology intelligently and automatically adjusts CPU fan  
speed according to system load and temperature, enabling users to work  
in distraction-free environment with minimal noise.  
ASUS 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 profiles offer flexible controls of fan  
speed to achieve a quiet and cool environment.  
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 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  
LucidLogix® Virtu MVP™  
LucidLogix® Virtu MVP featuring HyperFormance™ Technology boosts  
your discrete graphics card up to 60% beyond its original performance.  
Designed for Intel® processor graphics and Windows® 7 PCs, it perfectly  
combines the performance of discrete graphics cards with fast computing  
iGPU. Also with the newly designed Virtual Sync, users can enjoy a  
smoother gaming experience by eliminating tearing artifacts. LucidLogix®  
Virtu MVP could also dynamically assign 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® Quick  
Sync Video 2.0 technology while retaining high-end 3D rendering and  
gaming performance, provided by both NVIDIA® and AMD graphic cards.  
When the discrete graphics card is not required, power consumption  
goes automatically down to near zero, making the system more  
environmentally-friendly. For users searching for perfection, LucidLogix  
Virtu MVP provides great graphical performance and the best flexibility  
and efficiency.  
*LucidLogix® Virtu Universal MVP™ supports Windows® 7 operating system.  
**Intel® Quick Sync Video feature is supported by 3rd/2nd generation Intel®  
Core  
processor family.  
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 efficiency  
requirements in regards to energy consumptions. This is in line with  
ASUS vision of creating environment-friendly and energy-efficient  
products through product design and innovation to reduce carbon  
footprint of the product and thus mitigate environmental impacts.  
1-5  
ASUS P8H77-I  
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.  
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.  
SB_PWR  
I
P
ON  
OFF  
Standby Power Powered Off  
P8H77-I Onboard LED  
1-6  
Chapter 1: Product introduction  
 
1.5  
Motherboard overview  
Before you install the motherboard, study the configuration of your chassis to ensure that the  
motherboard fits 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 four 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  
I
P 8 H 7  
1-7  
ASUS P8H77-I  
 
1.5.3  
Motherboard layout  
1
7
1
2
3
4
5
8
6
17cm(6.7in)  
SATA6G_1  
SATA6G_2  
CHA_FAN  
KBMS_USB56  
Intel®  
H77  
SATA3G_1  
SATA3G_2  
SATA3G_3  
SATA3G_4  
Super  
I/O  
CPU_FAN  
HDMI  
SPDIFO  
ASM  
1442  
64Mb  
BIOS  
ATX12V  
USB3_12  
USB34  
- I  
7
P 8 H  
4
LAN_USB12  
AUDIO  
RTL  
8111F  
9
10  
AAFP  
SPDIF_OUT  
VIA  
VT1708S  
PCIEX16  
SB_PWR  
14 13  
12 11  
1.5.4  
Layout contents  
Connectors/Jumpers/Slots/LED  
Page  
Connectors/Jumpers/Slots/LED  
Page  
1.  
CPU, chassis fan connectors (4-pin CPU_FAN,  
4-pin CHA_FAN)  
1-27 8.  
DDR3 DIMM slots  
1-14  
2.  
3.  
4.  
USB connectors (10-1 pin USB78)  
1-31  
9
Speaker connector (4-pin SPEAKER)  
1-28  
1-28  
1-28  
USB 3.0 connector (20-1 pin USB3_34)  
1-30 10. System panel connector (10-1 pin PANEL)  
ATX power connectors (24-pin EATXPWR,  
4-pin EATX12V)  
1-27 11. Clear RTC RAM (3-pin CLRTC)  
5.  
6.  
Intel® LGA1155 CPU socket  
1-9  
12. Onboard LED (SB_PWR)  
1-6  
Intel® H77 Serial ATA 6.0Gb/s connectors  
1-30 13. Digital audio connector (4-1 pin SPDIF_OUT) 1-26  
(7-pin SATA6G_1/2 [gray])  
7.  
Intel® H77 Serial ATA 3.0Gb/s connectors (7-pin  
1-29 14. Front panel audio connector (10-1 pin AAFP) 1-26  
SATA3G_1~4 [blue])  
1-8  
Chapter 1: Product introduction  
 
1.6  
Central Processing Unit (CPU)  
The motherboard comes with a surface mount LGA1155 socket designed for the Intel® 3rd /  
2nd Generation Core™ i7 / i5 / i3 / Pentium® / Celeron® 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.  
I
P
P8H77-I CPU socket LGA1155  
2.  
Press the load lever with your thumb (A),  
and then move it to the right (B) until it is  
released from the retention tab.  
Load lever  
To prevent damage to the socket pins,  
do not remove the PnP cap unless  
you are installing a CPU.  
A
B
Retention tab  
1-9  
ASUS P8H77-I  
 
3.  
Lift the load lever in the direction of the  
arrow until the load plate is completely  
lifted.  
Load plate  
4.  
Position the CPU over the socket,  
ensuring that the gold triangle is on the  
bottom-left corner of the socket, and  
then fit the socket alignment keys into  
the CPU notches.  
CPU notches  
The CPU fits 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!  
Gold  
triangle  
mark  
Alignment keys  
5.  
Close the load plate (A), and then push  
down the load lever (C), ensuring that  
the front edge of the load plate slides  
under the retention knob (B).  
C
A
B
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Chapter 1: Product introduction  
6.  
Insert the load lever under the  
retention tab.  
PnP cap  
When you insert the  
load lever under the  
retention tab, the PnP cap  
disengages from the load  
plate.  
7.  
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 pre-  
applied thermal paste. If so, skip this  
step.  
The Thermal Interface Material is  
toxic and inedible. DO NOT eat it. If  
it gets into your eyes or touches your  
skin, wash it off immediately, and seek  
professional medical help.  
1-11  
ASUS P8H77-I  
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®-certified  
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:  
A
1.  
Place the heatsink on top of the installed  
CPU, ensuring that the four fasteners match  
the holes on the motherboard.  
B
B
A
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.  
1
1
A
B
B
A
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.  
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Chapter 1: Product introduction  
 
3.  
Connect the CPU fan cable to the connector on the motherboard labeled CPU_FAN.  
CPU_FAN  
CPU FAN PWM  
CPU FAN IN  
I
CPU FAN PWR  
7
GND  
P
P8H77-I 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.  
2.  
3.  
Disconnect the CPU fan cable from the connector on the motherboard.  
Rotate each fastener counterclockwise.  
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
A
B
B
A
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ASUS P8H77-I