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Product warranty or service will not be extended if: (1) the product is repaired, modied or altered, unless
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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”)
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ii
Contents
Safety information ...................................................................................................... vi
About this guide ........................................................................................................ vii
P8Z77-M PRO 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™ and
NVIDIA® SLI™ 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
that you must press the enclosed key.that you must press the enclosed key.
Example: <Enter> means that you must press the Enter or
Return key.Return key.
<Key1> + <Key2> + <Key3> If you must press two or more keys simultaneously, the key
names are linked with a plus sign (+).
Example: <Ctrl> + <Alt> + <Del>
viii
P8Z77-M PRO specications summary
CPULGA1155 socket for Intel® 3rd/2nd Generation Core™ i7 / Core™Core™
non-ECC, un-buffered memory
Dual channel memory architecture
Supports Intel® Extreme Memory Prole (XMP)
* Hyper DIMM support is subject to the physical characteristics
of individual CPUs. Please refer to Memory QVL (Qualied
Vendors List) for details.
x8 / x8 mode)
1 x PCI Express 2.0 x16 slot [black] (max. at x4 mode, compatible
with PCIe x1 and x4 devices)
1 x PCI Express 2.0 x1 slots
* PCIe 3.0 speed is supported by Intel® 3rd generationCore™
processors.
Integrated Graphics Processor - Intel® HD Graphics support
Multi-VGA output support: HDMI/ DVI-D/ RGB port
Supports HDMI with max. resolution 1920 x 1200@60Hz
Supports DVI-D with max. resolution 1920 x 1200@60Hz
Supports RGB with max. resolution 2048 x 1536@75Hz
Supports Intel® InTru™ 3D/Quick Sync Video/Clear Video HD
Technology/Insider™
Maximum shared memory of 1696MB
- 2 x eSATA 6Gb/s ports
* Supports on Intel® Core™ processor family with Windows® 7
operating systems.
** These SATA ports are for data hard drives only. ATAPI
devices are not supported.
(continued on the next page)
ix
P8Z77-M PRO specications summary
AudioRealtek® ALC892 8-channel high denition audio CODEC
USBASMedia USB 3.0 controller- supports ASUS USB 3.0 Boost
ASUS Unique FeaturesASUS Dual Intelligent Processors 2 with DIGI+ VRM:
ManageabilityWfM 2.0, DMI 2.0, WOL by PME, PXE, WOR by PME
Support DVD contentsDrivers
Form factormATX Form Factor, 9.6”x 9.6” (24.4cm x 24.4cm)
Precision Tweaker 2:
- vCore: Adjustable CPU voltage at 0.005V increment
- vDRAM Bus: 187-step Memory voltage control
- vPCH: 190-step Chipset voltage control
- iGPU: 238-step iGPU voltage control
- vCPU_PLL: 160-step CPU & PCH PLL 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)
1 x DVI-D
1 x RGB
1 x Optical S/PDIF Out port
2 x eSATA 6Gb/s ports
1 x LAN (RJ-45) port
4 x USB 3.0/2.0 ports (blue, 1 supports USB BIOS Flashback)
2 x USB 2.0/1.1 ports
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)
3 x Chassis Fan connectors (4-pin)
Front panel audio connector (AAFP)
1 x S/PDIF out header
24-pin EATX Power connector
8-pin EATX 12V Power connector
System Panel (Q-Connector)
1 x BIOS Flashback switch
1 x MemOK! switch
1 x Clear CMOS Jumper
1 x EPU switch
1 x TPU switch
1 x COM port connecter
1 x TPM header
SM BIOS 2.5, 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
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® P8Z77-M PRO 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 P8Z77-M PRO
motherboard
2 x Serial ATA 6.0 Gb/s cables2 x Serial ATA 3.0 Gb/s cables
1 x ASUS I/O Shield1 x 2-in-1 ASUS Q-Connector kit
User manualSupport DVD
Chapter 1
1 x ASUS SLI™ bridge
connector
ASUS P8Z77-M PRO
• 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/Pentium3rd/2nd generation Core™ i7/i5/i3/Pentium/Pentium®/Celeron® processors are among the most
powerful and energy efcient CPUs in the world.
Intel® Z77 Express Chipset
The Intel® Z77 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, Z77 chipset provides 4 USB 3.0 ports for 10 times faster data retrieval speed.
Moreover, IntelIntel® Z77 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 16Gb/s of PCIe 2.0 (in x16 mode).
As such, PCIe 3.0 provides users an unprecedented data speeds, combined with the
convenience and seamless transition offered 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
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® Rapid Start Technology
Allows your computer to quickly resume from a low-power hibernate state in seconds. Saving
your system memory to the designated SSD, it provides your computer a faster wake-up
response time, while still keeping the energy use low.
1-2
Chapter 1: Product Introduction
Intel® Smart Connect Technology
Your computer can receive web updates with fresh content for selected applications, even
when the system is in sleep mode. This means less time waiting for applications to update
and sync with the cloud, leading to a more efcient computing experience.
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.
Quad-GPU SLI™ and Quad-GPU CrossFireX™ Support
Flexible Multi-GPU Solutions, Your Weapon of Choice!
P8Z77-M PRO brings you the multi-GPU choice of either SLI™ or CrossFireX. The
motherboard features the most powerful Intel® Z77 platform to optimize PCIe allocation in
multiple GPU congurations. Expect a brand-new gaming style you’ve never experienced
before!
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 – 6
USB 3.0 ports in total. Experience the latest plug & play connectivity at speeds up to 10
times faster than USB 2.0. The P8Z77-M PRO affords greater convenience to high speed
connectivity.
Extra SATA 6.0 Gb/s Support
Extra Ports, Extra Speed and Accessibility
The Intel® Z77 Express Chipset natively supports the next-generation Serial ATA (SATA)
interface, delivering up to 6.0 Gb/s data transfer. ASUS provides extra SATA 6.0 Gb/s ports
with enhanced scalability, faster data retrieval, and double the bandwidth of current bus
systems.
Chapter 1
ASUS P8Z77-M PRO
1-3
1.3.2 Dual Intelligent Processors II
Chapter 1
Dual Intelligent Processors 2 with DIGI+ VRM
Digital Power Design: The New Standard
ASUS’ new generation Dual Intelligent Processors 2 with DIGI+ VRM launch motherboard
power control into a whole new digital era. The 8 phase digital architecture provides the
highest power efciency, generating less heat to enhance longer component lifespan and
ensure minimal power loss. With ASUS DIGI+ VRM, users can easily adjust power phase
performance, enabling new PWM voltage and frequency modulation controls. Digital 8 power
phase design also expands the modulation spectrum for improved stability and lower VRM
switching noise by dynamically detecting system load, empowering users with superior
exibility and perfect precision to ensure optimized performance, extreme system stability,
and greater power efciency.
DIGI+ VRM
Herald the arrival of a new digital power design era
New ASUS DIGI+ VRM upgrades motherboard power delivery to a digital standard. The
8 digital architecture delivers twice the precision power. With iGPU on P8Z77-M PRO
motherboard, DIGI+ VRM intelligently adjust Vcore PWM, integrated graphics voltages
and frequency modulation to minimize power loss through BIOS tuning and the exclusive
user interface. It increases overclocking range while performance reaches its full potential,
adjusting frequencies dynamically and cutting radiation interference by half to enhance
system stability through enabled spread spectrum. The DIGI+ VRM digital power design
empowers users with superior exibility and perfect precision to ensure optimized
performance. extreme system stability, and greater power efciency.
TPU
The Ultimate Turbo Processor
Unleash your performance with ASUS’ simple onboard switch or AI Suite II utility. The TPU
chip offers precise voltage control and advanced monitoring through Auto Tuning and TurboV
functions. Auto tuning offers a user friendly way to automatically optimize the system for fast,
yet stable clock speeds, while TurboV enables unlimited freedom to adjust CPU frequencies
and ratios for optimized performance in diverse situations.
EPU
Energy Efciency All Around
Tap into the world’s rst real-time PC power saving chip through a simple onboard switch or
AI Suite II utility. Get 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.
1-4
Chapter 1: Product Introduction
1.3.3 ASUS Exclusive Features
GPU Boost
Go to the Limit with iGPU Level Up!
GPU Boost accelerates the integrated GPU for extreme graphics performance and provides
you with a user-friendly interface to facilitate frequency adjustments.
USB 3.0 Boost
ASUS USB 3.0 Boost technology supports UASP (USB Attached SCSI Protocol) and
automatically increases a USB 3.0 device’s transfer speed up to 170%.
USB BIOS Flashback
With USB BIOS Flashback, simply connect a USB ash drive containing the UEFI BIOS le
to the USB 3.0 port, press the BIOS Flashback button for three seconds, and the BIOS is
updated automatically. With its Windows-compatible application, you can regularly check for
UEFI BIOS updates and download the latest UEFI BIOS automatically.
Network iControl
ASUS Network iControl is an intuitive one-stop network control center that makes it easier
for you to manage your network bandwidth and allows you set, monitor, and schedule the
bandwidth priorities for your network programs. It also allows you to automatically connect to
a PPoE network for a more convenient online experience.
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, 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.
Chapter 1
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!
ASUS P8Z77-M PRO
1-5
HDMI 1.4a Support
Chapter 1
High-Denition Multimedia Interface (HDMI) is a set of digital video standards that delivers
multi-channel audio and uncompressed digital video for full HD 1080p visuals and 3D
animation through all high speed HDMI cable with 3D devices. Supporting HDCP copy
protection such as Blu-ray Discs, HDMI provides you with the highest-quality home theater
experience.
1.3.4 ASUS Quiet Thermal Solution
ASUS Fan Xpert+
Customizable Speeds with Independent Fan Control
Hardware-level ASUS Fan Xpert+ allows users to independently adjust both CPU and case
fan speeds with custom calibration and manual prole creation. Both automatic and manual
fan speed controls allow the most extensive fan control and customization ever, to achieve
the best balance of cooling performance and low noise.
ASUS Fanless Design—Heat-sink solution
The stylish heatsink features 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!
1.3.5 ASUS EZ DIY
ASUS UEFI BIOS (EZ Mode)
ASUS UEFI BIOS is a mouse-controlled user-friendly graphics interface that you allows you
to easily select performance settings, and drag and drop boot priorities with its EZ Mode
interface. Its Advanced Mode interface allows you to congure more advanced BIOS settings.
New upgrade! Quick and easy information for enhanced system control
- F12 BIOS snapshot hotkey
- F3 Shortcut for most accessed information
- ASUS DRAM SPD (Serial Presence Detect) information detecting faulty DIMMs, and
helping with difcult POST situations.
ASUS Q-Design
ASUS Q-Slot and Q-DIMM design speed up, simplify, and enhances your DIY (Do-it-Yourself)
experience.
ASUS Q-Connector
Make Connection Quick and Accurate!
The ASUS Q-Connector allows you to connect or disconnect the chassis front panel cables
in one easy step with one complete module. This unique adapter eliminates the trouble of
plugging in one cable at a time, making the connection quick and accurate.
1-6
Chapter 1: Product Introduction
1.3.6 Other special features
LucidLogix Virtu MVP
LucidLogix Virtu MVP featuring HyperFormance™ Technology boosts your discrete graphics
card up to 30% beyond its original performance. Designed for Intel
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, it will put the power use 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 exibility and efciency.
* LucidLogix Virtu MVP supports Windows 7 operating system.
** Intel® Quick Sync Video feature is supported by 3rd/2nd generation Intel® Core™ processor
family.
®
processor graphics
Chapter 1
ASUS P8Z77-M PRO
1-7
Chapter 1
1-8
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 P8Z77-M PRO
2-1
2.2 Motherboard overview
2.2.1 Motherboard layout
Chapter 2
2-2
Refer to
2.2.8 Internal connectors
information about rear panel connectors and internal connectors.
and
2.3.11 Rear panel connection
Chapter 2: Hardware information
for more
Layout contents
Connectors/Jumpers/SlotsPage
1. ATX power connectors (24-pin EATXPWR, 8-pin EATX12V)2-28
2. LGA1155 CPU socket2-4
3. CPU, and chassis fan connectors (4-pin CPU_FAN,
4-pin CHA_FAN1-3 )
4. DDR3 DIMM slots2-5
5. Serial port connector (10-1 pin COM)2-25
6. TPM connector (20-1-pin TPM)2-27
7. MemOK! switch2-15
8. USB 3.0 connector (20-1 pin USB3_12)2-24
9. Intel® Z77 Serial ATA 6.0 Gb/s connectors
(7-pin SATA6G_1/2 [gray])
10. Intel® Z77 Serial ATA 3.0 Gb/s connectors
(7-pin SATA3G_3–6 [blue])
11. System panel connector (20-8 pin PANEL)2-29
12. Clear RTC RAM (3-pin CLRTC)2-21
13. USB 2.0 connectors (10-1 pin USB78, USB910, USB1112)2-24
14. BIOS Flashback switch2-14
15. Standby power LED2-18
16. TPU switch2-16
17. EPU switch2-17
18. Front panel audio connector (10-1 pin AAFP)2-27
19. Digital audio connector (4-1 pin SPDIF_OUT)2-25
2-26
2-22
2-23
Chapter 2
ASUS P8Z77-M PRO
2-3
2.2.2 Central Processing Unit (CPU)
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
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
Install one memory module in slot A2 rst as a single-channel operation.
Chapter 2
ASUS P8Z77-M PRO
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.
• Due to Intel® 2nd generation processors' behavior, DDR3 2200/2000/1800 MHz
memory module will run at DDR3 2133/1866/1600 MHz frequency as default.
• 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
* The 2400MHz memory modules above are supported by this motherboard; however, the actual
frequency support varied depending on the O.C. margin of the installed CPU.
** Due to Intel 2nd generation processors' behavior, DDR3 2200 and above/2000/1800 MHz memory
module runs ay DDR3 2133/1866/1600 MHz frequency as default.
* The memory modules in 2200MHz and above are supported by this motherboard; however, the
actual frequency support varies depending on the O.C. margin of the installed CPU.
** Due to Intel 2nd generation processors' behavior, DDR3 2200 and above/2000/1800 MHz memory
module runs ay DDR3 2133/1866/1600 MHz frequency as default.