Asus Crosshair IV Formula Socket AM3/ AMD 890FX/ CrossFireX/ SATA3.0 & USB3.0/ A&GbE/ ATX Motherboard. The Republic of Gamers consists only the best of the best. We offer the best hardware engineering, the fastest performance, the most innovating ideas, and we welcome the best gamers to join in.
In the Republic of Gamers, mercy rules are only for the weak, and bragging rights means everything. We believe in making statements and we excel in competitions. If your character matches our trait, then join the elite club, make your presence felt, in the Republic of Gamers. 
Crosshair IV Formula Features:
AMD Phenom II X6 Support
This motherboard supports AMD® Socket AM3 multi-core processors with unique L3 cache and delivers better overclocking capabilities with less power consumption. It features dual-channel DDR3 1333 memory support and accelerates 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.
AMD 890FX / SB850 Chipset
AMD 890FX Chipset is designed to support up to 5.2GT/s HyperTransport 3.0 (HT 3.0) interface speed and dual PCI Express 2.0 x16 graphics. It is optimized with AMD latest AM3 and multi-core CPUs to provide excellent system performance and overclocking capabilities.
DDR3 2000(O.C.) Support
This motherboard supports DDR3 2000(O.C.) that provides faster data transfer rate and more bandwith to increase memory computing efficiency, enhancing system performance in 3D graphics and other memory demanding applications.
* DDR3 2000(O.C.) is supported by AM3 CPUs only. Refer to www.asus.com for the supported CPU models.
ATI CrossFireX™ Technology
ATI’s CrossFireX™ boosts image quality along with rendering speed, eliminating the need to scale down screen resolution to get high quality images. CrossFireX™ allows higher anti-aliasing, anisotropic filtering, shading, and texture settings. Adjust your display configurations, experiment with the advanced 3D settings, and check the effects with a real-time 3D-rendered previews within ATI Catalyst™ Control Center.
ROG Connect - Plug and Overclock, Tweak it the hardcore way!
Monitor the status of your desktop PC and tweak its parameters in real-time via a notebook—just like a race car engineer—with ROG Connect. ROG Connect links your main system to a notebook through a USB cable, allowing you to view real-time POST code and hardware status readouts on your notebook, as well as make on-the-fly parameter adjustments at a purely hardware level.
Turbo Unlocker - On demand real time system tuning
Turbo Unlocker is the next evolution of an exclusive ASUS performance boost feature. All it takes is one click in the TurboV EVO interface and Turbo Unlocker automatically and dynamically adjusts each core frequency to speed up performance based on actual system load. Turbo Unlocker gets you in touch with more performance exactly when you need it.
Core Unlocker - Intelligently Unlocks True Core Performance
ASUS Core Unlocker simplifies the activation of a latent AMD CPU—with just a press of a button. Enjoy an instant performance boost by simply unlocking the extra cores, without performing complicated BIOS changes.
Specifications:
CPU
AMD Socket AM3 ;Phenom™II /Athlon™II /Sempron™ 100 Series Processors
AMD 140W CPU Support
AMD Cool 'n' Quiet™ Technology
Supports 45nm CPU
Chipset
AMD 890FX/SB850
System Bus
Up to 5200 MT/s ; HyperTransport™ 3.0
Memory
4 x DIMM, Max. 16 GB, DDR3 2000(O.C.)/1800(O.C.)/1600(O.C.)/1333/1066 ECC,Non-ECC,Un-buffered Memory
Dual Channel memory architecture
Expansion Slots
3 x PCIe 2.0 x16 (dual @ x16, triple @x16 x8 x8)
1 x PCIe 2.0 x4
2 x PCI 2.2
Multi-GPU Support Support
ATI CrossFire™X Technology graphics cards
Storage
SB850 Chipset
6 xSATA 6.0 Gb/s ports Support RAID 0,1,5,10
JMicron® JMB363 PATA and SATA controller
1 xSATA 3Gb/s port (Black)
1 xExternal power SATA 3Gb/s port on rear (SATA On-the-Go)
* Due to the Windows XP/ Vista limitation, the RAID array with the total capacity over 2TB cannot be set as a boot disk. A RAID array over 2TB can only be set as a data disk only.
LAN
Marvell 8059 Gigabit LAN controller
Audio
SupremeFX X-Fi built-in 8-Channel High Definition Audio CODEC
- EAX® Advanced™ HD 4.0
- X-Fi CMSS®-3D
- X-Fi Crystalizer™
- Creative ALchemy
- Supports Blu-ray audio layer content protection
- Supports 1 Optical S/PDIF out port at back I/O
- Supports 1 x S/PDIF out header
- Supports Jack-detection, Multi-streaming, Front Panel Jack-retasking
IEEE 1394
2 x 1394a port(s) (1 port at back I/O, 1 port onboard)
USB
NEC® USB 3.0 controller
- 2 x USB 3.0/2.0 ports (at back I/O)
AMD SB850 chipset
- 12 x USB 2.0 ports (5 ports at mid-board, 7 ports at back I/O, 1 port at back I/O is also for ROG connect)
Overclocking Features
ROG Connect
GameFirst
Extreme Tweaker
Power Design:
- 8+2 phase CPU power design
CPU Level Up
MemOK!
iROG
Loadline Calibration
Intelligent overclocking tools:
- ASUS TurboV Evo
- O.C Profile
Overclocking Protection:
- COP EX (Component Overheat Protection - EX)
- Voltiminder LED
- ASUS C.P.R.(CPU Parameter Recall)
Special Features
Turbo Key II
Core Unlocker
ASUS Q-Connector
ASUS Q-Shield
ASUS Q-Fan 2
ASUS EZ Flash 2
ASUS CrashFree BIOS 3
ASUS MyLogo 3
Back Panel I/O Ports
1 x External SATA
1 x S/PDIF Out (Optical)
1 x IEEE 1394a
1 x LAN(RJ45) port
8 -Channel Audio I/O
1 x PS/2 Keyboard port(purple)
2 x USB 3.0/2.0 ports
7 x USB 2.0/1.1 ports (1 port is also for ROG Connect)
1 x ROG Connect On/Off switch
1 x Clr CMOS switch
Internal I/O Connectors
3 x USB 2.0 connectors supports additional 5 USB 2.0 ports
6 x SATA 6Gb/s connectors (Red)
1 x SATA 3Gb/s connectors (Black)
8 x Fan connectors: 1 x CPU / 1 x PWR / 3 x Chassis / 3 x Optional
7 x ProbeIt measurement points
3 x Thermal sensor connectors
1 x IEEE1394a connector
1 x SPDIF_out connector
1 x 24-pin ATX power connector
1 x 8-pin ATX 12V power connector
1 x En/Dis-able Clr CMOS switch
1 x Core unlocker switch
1 x Turbo key II switch
1 x Power on switch
1 x Reset switch
1 x OC Station Header
1 x Go Button
System panel connector
BIOS
16 Mb Flash ROM AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.4, ACPI2.0a Multi-Language BIOS
Manageability
WOL by PME,WOR by PME,PXE
Accessories
User's manual
1 x I/O Shield
1 x ROG Connect Cable
1 x 2-in-1 ASUS Q-Connector Kit
1 x 2-in-1 SATA 6.0Gb/s Cables
2 x 2-in-1 SATA 3.0Gb/s Signal Cables
1 x 2-port USB2.0 + ESATA Module
1 x Crossfire Cable
1 x Cable Ties Pack
1 x ROG Theme Label
1 x 12-in-1 ROG Cable Label
Support Disc
Support DVD:
- Drivers and applications
* ASUS PC Probe II
* ASUS Update
* ASUS AI Suite
* Sound Blaster X-Fi Utility
* Kaspersky® Anti-Virus 1-year license
Form Factor
ATX Form Factor
12 inch x 9.6 inch ( 30.5 cm x24.5 cm )
