Asus | M4N78 PRO - Motherboard - ATX | M4N78 PRO

Brand New Design Optimized for AM3
O.C. DDR2 1200
AMD AM3 CPU support
Turbo Key
ASUS Anti-Surge Protection
AMD 140W CPU Support
CPU, Chipset and Graphics Features
AMD® Phenom™ II/Athlon™ X4/Athlon™ X3/ Athlon™ X2 (AM3
AMD® Phenom™ X4/ Phenom™ X3 / Athlon™ X2/ Athlon™/
Sempron™ processors (socket AM2+/AM2)
This motherboard supports AMD® AM3
multi-core processors with unique L3 cache and
delivers better overclocking capabilities with less
This motherboard supports AMD® Socket AM2+
multi-core processors. It features dual-channel
DDR2 1066 memory support, data transfer rate
power consumption. It features dual-channel
up to 5200MT/s via HyperTransport™ 3.0 based
DDR2 1066 memory support and accelerates
system bus, and AMD® Cool ´n´ QuietTM
data transfer rate up to 5200MT/s via
HyperTransport™ 3.0 based system bus. This motherboard also supports
AMD® CPUs in the new 45nm manufacturing process.
HyperTransport 3.0
NVIDIA GeForce® 8300
NVIDIA® GeForce 8300 offers the latest support of Hybrid
SLI Technology, DirectX® 10 graphics features, HD video
playback with HDMI/DVI output. It also supports
HyperTransport™ 3.0 interface, PCI Express™ 2.0 bus
architecture, Serial ATA 3 Gb/s devices and is optimized with AMD’s latest
AM3/AM2+ and multi-core CPUs to provide excellent system performance.
HyperTransport™ 3.0 technology provides 2.6 times more
bandwidth than HyperTransport™ 1.0, radically improving
system efficiency to create a smoother, faster computing
HDMI Support
Enjoy Full HD 1080p Multimedia Home-Theater
To attain top performance, ASUS engineers have
High-Definition Multimedia Interface (HDMI) is a set of digital
video standards that delivers multi-channel audio and
uncompressed digital video for full HD 1080p visuals through
successfully unleashed DDR2 1200(O.C.) MHz to
meet the higher bandwidth requirements of the latest
through a single cable. Supporting HDCP copy protection such
as HD DVD and Blu-ray Discs, HDMI provides you with the highest-quality home
operation system, 3D graphics, multimedia, and
Internet applications.
theater experience.
O.C. DDR2 1200
*Ensure that you download and update to the latest BIOS at and
purchase the memory modules listed in the ASUS official memory Qualified
Vendors Lists (QVL).
** We recommend that you install the DDR2 1200 memory modules on the
yellow slots for better performance.
PCIe 2.0 support
This motherboard supports the latest PCIe 2.0 devices for
double speed and bandwidth which enhances system
Hybrid SLI Support
GeForce® Boost
Boosted Performance with Onboard GPU and Discrete
Flexible Graphics Alternatives
Graphics Card HybridPower™
This motherboard supports multiple digital and analog display
Intelligent Graphics Power-Savings and Quiet Operations
output interfaces - HDMI, DVI, and D-Sub. With such diversity of
Hybrid SLI™ technology is a unique hybrid multi-GPU
display outputs, you are able to choose and upgrade display
devices freely.
technology. It includes two primary features: GeForece Boost
and HybridPower™. GeForece Boost turbo-charges performance of discrete
graphics cards when combined with the motherboard GPUs. HybridPower™
unleashes graphics performance for demanding 3D applications and enables
low-power operation for everyday computing needs.
* GeForce®(R) Boost and HybridPower™ are on select GeForce®(R) GPUs.
Visit for more information.
ASUS Power Solutions
4+1 Phase Power Design
ASUS Anti-Surge Protection
Longer Life & Higher Efficiency!
This special design prevents expensive
Unleashes ultimate memory performances with independent
power to core components, while providing fast transient
devices and the motherboard from
damage caused by power surges.
response and stability for the CPU under heavy loading or
overclocking modes.
ASUS Green Design
AI Nap
The ASUS EPU (Energy Processing Unit) provides total system
power management by detecting current PC loadings and
intelligently moderating power in real-time. It automatically
Minimize noise and power consumption when temporarily
With AI Nap, the system can continue running at minimum power
provides the most appropriate power usage for the CPU, VGA
card, hard drives, and CPU/chassis fans- helping save power
and money!
and noise when you are temporarily away. To wake the system
and return to the OS environment, simply click the mouse or
press a key.
*ASUS EPU is supported by AM2+/AM3 CPU only.
ASUS Overclocking Tools
Feel the adrenaline rush of real-time O.C. - now a reality with the
ASUS TurboV. This easy O.C. 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 profiles in TurboV provides the best O.C. settings
in different scenarios.
Turbo Key
ASUS Turbo Key allows the user to turn the PC power button
into an overclocking button. After the easy setup, Turbo Key can
boost performances without interrupting ongoing work or games
- with just one touch!!
Express Gate
Express Gate
Instant Online! Instant Fun!
Taking only 5 seconds to bootup, Express Gate is the one-stop gateway to instant fun! It´s a unique motherboard built-in OS. You can utilize the
most popular Instant Messengers (IM) like MSN, Skype, Google talk, QQ, and Yahoo! Messenger to keep in touch with friends, or quickly check on
the weather and e-mails just before leaving your house. What´s more, the user-friendly picture manager lets you view your pictures without entering
Windows at anytime! * The actual boot time is subject to hardware configurations and product models.
Industry Standard
High Definition Audio
S/PDIF-out on Back I/O Port
Enjoy high-end sound system on your PC!
This motherboard provides convenient connectivity to
The onboard 8-channel HD audio (High Definition Audio,
previously codenamed Azalia) CODEC enables high-quality
external home theater audio systems via coaxial and optical
S/PDIF-out (SONY-PHILIPS Digital Interface) jacks. It
192KHz/24-bit audio output, jack-sensing feature, retasking
functions and multi-streaming technology that simultaneously
allows to transfer digital audio without converting to analog
format and keeps the best signal quality.
sends different audio streams to different destinations. You can
now talk to your partners on the headphone while playing a multi-channel
network games. All of these are done on one computer.
CrashFree BIOS 2
ASUS Q-Connector allows you to easily connect or disconnect
This feature allows you to restore the original BIOS data from
the chassis front panel cables to the motherboard. This unique
the support CD in case when the BIOS codes and the data are
module eliminates the trouble of connecting the system panel
cables one at a time and avoiding wrong cable connections
corrupted. This protection eliminates the need to buy a
replacement ROM chip.
ASUS EZ Flash2
With ASUS EZ Flash, you can update BIOS before entering
operating system. No more DOS-based flash utility and bootable
diskette required.
O.C. Profile
Conveniently store or load multiple BIOS settings
Freely share and distribute favorite overclocking settings The
motherboard features the ASUS O.C. Profile that allows users to
conveniently store or load multiple BIOS settings. The BIOS
settings can be stored in the CMOS or a separate file, giving
users freedom to share and distribute their favorite overclocking
ASUS Quiet Thermal Solutions
ASUS Q-Fan 2
Stylish Heatsink
ASUS Q-Fan2 technology intelligently adjusts both CPU fan and
The streamline-shaped heatsink features 0-dB thermal solution
chassis fan speeds according to system loading to ensure quiet,
cool and efficient operation.
that offers users a noiseless PC environment. Not only the
beautifully curved fins upgrade the visual enjoyment for
motherboard users, but also the special Streamline Airflow
Guiding design lowers the temperature of the north bridge
chipset through high efficient heat-exchange. Combined with
usability and aesthetics, the ASUS streamline-shaped heat-sink will give users
an extremely silent and cooling experience with the elegant appearance!
Other ASUS Features
Uses 100% All High-quality Conductive Polymer
Capacitors!(VRM 5000hrs lifespan @105°C, 500,000hrs @65°C)
This motherboard uses all high-quality
durability, improved lifespan, and enhanced
Personalize your system with customizable boot logo You can
convert your favorite photo into a 256-color boot logo for a more
thermal capacity.
colorful and vivid image on your screen.
conductive polymer capacitors onboard for
C.P.R.(CPU Parameter Recall)
When the system hangs due to overclocking failure,
there is no need to open the case to clear CMOS data.
Just simply restart the system, the BIOS would show the
previous setting and then users can amend the CPU
setting again.
The motherboard and its packaging comply with the European Union´s Restriction on the use of Hazardous Substances (RoHS). This is in
line with the ASUS vision of creating environment-friendly and recyclable products and packaging to safeguard consumers´ health while
minimizing the impact on the environment.
AMD AM3/AM2+/AM2 ;Phenom™II/Athlon™II/Phenom™/Athlon™/Sempron™ Processors
AMD 140W CPU Support
AMD Cool 'n' Quiet™ Technology
Support 45nm CPU
NVIDIA GeForce 8300
System Bus
Up to 5200 MT/s HyperTransport™ 3.0 interface for AM3/AM2+ CPU
2000 / 1600 MT/s for AM2 CPU
4 x DIMM, Max. 16 GB, DDR2 1200(O.C.)/1066*/800/667 ECC,Non-ECC,Un-buffered Memory
Dual Channel memory architecture
*Due to AMD CPU limitation, DDR2 1066 is supported by AM2+/AM3 CPU for one DIMM per channel only. Refer to for the memory QVL (Qualified Vendors Lists).
**Due to OS limitation, when installing total memory of 4GB capacity or more, Windows® 32-bit operation system may
only recognize less than 3GB. Hence, a total installed memory of less than 3GB is recommended.
1 x PCIe 2.0 x16
Expansion Slots
2 x PCIe x1
3 x PCI 2.2
Integrated NVIDIA® GeForce® 8 series GPU
Hybrid SLI™ Support (supports Windows Vista only)
Supports HDMI™ Technology with max. resolution up to 1920 x 1200
Supports DVI with max. resolution up to 1920 × 1200 @ 60 Hz
Supports D-Sub with max. resolution up to 1920 × 1440 @ 75 Hz
Supports Microsoft® DirectX 10, OpenGL 2.0, Pixel Shader 4.0
Support PCIe 2.0 / 1.0 Architecture
NVIDIA® GeForce 8300
1 xUltraDMA 133/100
6 xSATA 3 Gb/s ports
(Legacy IDE operation is only supported on drives 1–4.)
NVIDIA® MediaShield™ Support RAID 0,1,0+1,5,JBOD
Gigabit LAN controller featuring AI NET 2
VIA1708S 8 -Channel High Definition Audio CODEC
DTS Surround Sensation UltraPC
- Supports Jack-Detection, Multi-Streaming, and Front Panel Jack-Retasking
- Optical S/PDIF Out ports at back I/O
- ASUS Noise Filtering
12 xUSB 2.0 ports (8 ports at mid-board, 4 ports at back panel)
ASUS Power Solutions
- 4+1 Phase Power Design
- ASUS Anti-Surge Protection
ASUS Green Design:
*ASUS EPU is supported by AM2+/AM3 CPU only.
Express Gate
ASUS Unique Features
ASUS Quiet Thermal Solution
- ASUS Fanless Design: Stylish heatsink solution
- ASUS Q-Fan2
ASUS Crystal Sound
- ASUS Noise Filtering
- ASUS Q-Connector
- ASUS CrashFree BIOS 2
- ASUS O.C. Profile
- ASUS EZ Flash 2
Intelligent overclocking tools
- AI Overclocking (Intelligent CPU Frequency Tuner)
- ASUS TurboV
- ASUS Turbo Key
Precision Tweaker
- vDIMM: 8 -step DRAM voltage control
Overclocking Features
- vChipset 4-step Chipset voltage control
- vCore: Adjustable CPU voltage at 50mV increment
SFS (Stepless Frequency Selection)
- FSB tuning from 200MHz up to 600MHz at 2MHz increment
- PCI Express frequency tuning from 100MHz up to 200MHz at 1MHz increment
Overclocking Protection
- ASUS C.P.R.(CPU Parameter Recall)
Special Features
100% All High-quality Conductive Polymer Capacitors! (VRM 5000hrs lifespan @105°C, 500,000hrs @65°C)
ASUS MyLogo 2
1 x DVI
1 x D-Sub
1 x PS/2 Keyboard
Back Panel I/O Ports
1 x HDMI
1 x PS/2 Mouse
1 x S/PDIF Out (Optical)
1 x LAN(RJ45) port
4 x USB 2.0/1.1
8 -Channel Audio I/O
4 x USB connectors (8 ports)
Internal I/O Connectors
1 x Floppy disk drive connector
1 x IDE connector
6 x SATA connectors
1 x CPU Fan connector
1 x Chassis Fan connector
1 x Power Fan connector
Front panel audio connector
COM connector
Chassis Intrusion connector
System Panel (Q-Connector)
1 x S/PDIF Out Header
CD audio in
24-pin ATX Power connector
4-pin ATX 12V Power connector
8 Mb Flash ROM
AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.5, ACPI 2.0, ASUS EZ Flash 2
1 x UltraDMA 133/100/66 cable
2 x Serial ATA cables
I/O Shield
User's manual
2 in 1 Q-connector (USB, System panel; Retail version only)
*The floppy disk drive cable is purchased separately
Support Disc
Express Gate
Anti-virus software (OEM version)
ASUS Update
Form Factor
ATX Form Factor
12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )
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