CPU AMD AM3+ FX™/Phenom™ II/Athlon™ II/Sempron™ 100 Series Processors Supports AM3+ 32 nm CPU Supports CPU up to 8 cores Supports CPU up to 140 W AMD Cool n Quiet™ Technology Chipset AMD 990FX/SB950 Memory 4 x DIMM, Max. 32GB, DDR3 2133(O.C.)/2000(O.C.)/1800(O.C.)/1600/1333/1066 Hz ECC, Non-ECC, Un-buffered Memory Dual Channel Memory Architecture * Refer to www.asus.com or user manual 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. Install a 64-bit Windows® OS when you want to install 4GB or more memory on the motherboard. Multi-GPU Support Supports NVIDIA® 3-Way SLI™ Technology Supports AMD 3-Way CrossFireX™ Technology Expansion Slots 3 x PCIe 2.0 x16 (dual x16 or x16, x8, x8) 1 x PCIe 2.0 x16 (x4 mode) 1 x PCIe 2.0 x1 1 x PCI Storage AMD SB950 controller : 6 x SATA 6Gb/s port(s), red Support Raid 0, 1, 5, 10 ASMedia® ASM1061 controller : 1 x SATA 6Gb/s port(s), red 1 x eSATA 6Gb/s port(s), red LAN Intel®, 1 x Gigabit LAN Controller Audio SupremeFX X-Fi 2 built-in 8-Channel High Definition Audio CODEC - Supports : Jack-detection, Multi-streaming, Front Panel Jack-retasking Audio Feature : - X-Fi® Xtreme Fidelity™ - EAX® Advanced™ HD 5.0 - THX® TruStudio PRO™ - Creative ALchemy - Blu-ray audio layer Content Protection - Optical S/PDIF out port(s) at back panel USB Ports ASMedia® USB 3.0 controller : 6 x USB 3.0 port(s) (4 at back panel, blue, 2 at mid-board) AMD SB950 controller : 12 x USB 2.0 port(s) (8 at back panel, black+white, 4 at mid-board) Overclocking Features ROG Connect : - RC Diagram - RC Remote - RC Poster - GPU TweakIt Extreme Engine Digi+ : - 8 + 2 phase power design UEFI BIOS features : - ROG BIOS Print - GPU.DIMM Post GameFirst iROG Extreme Tweaker Overclocking Protection : - COP EX (Component Overheat Protection - EX) - Voltiminder LED - ASUS C.P.R.(CPU Parameter Recall) Special Features ASUS TPU : - CPU Level UP Core Unlocker ASUS Exclusive Features : - MemOK! - AI Charger+ ASUS Quiet Thermal Solution : - ASUS Fan Xpert ASUS EZ DIY : - ASUS Q-Shield - ASUS O.C. Profile - ASUS EZ Flash 2 - ASUS MyLogo 3 ASUS Q-Design : - ASUS Q-LED (CPU, DRAM, VGA, Boot Device LED) - ASUS Q-Connector Back I/O Ports 1 x PS/2 keyboard/mouse combo port(s) 1 x eSATA 6Gb/s 1 x LAN (RJ45) port(s) 4 x USB 3.0 8 x USB 2.0 (white port can be switched to ROG Connect) 1 x Optical S/PDIF out 6 x Audio jack(s) 1 x Clear CMOS button(s) Internal I/O Ports 1 x USB 3.0 connector(s) support(s) additional 2 USB 3.0 port(s) 2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s) 7 x SATA 6Gb/s connector(s) 2 x CPU Fan connector(s) 3 x Chassis Fan connector(s) 3 x Optional Fan connector(s) 1 x S/PDIF out header(s) 1 x 24-pin EATX Power connector(s) 1 x 8-pin ATX 12V Power connector(s) 1 x 4-pin ATX 12V Power connector(s) 1 x Front panel audio connector(s) (AAFP) 1 x System panel(s) 8 x ProbeIt Measurement Points 3 x Thermal sensor connector(s) 1 x En/Dis-able Clr CMOS header(s) 1 x EZ Plug connector(s) (4-pin Molex power connector) 1 x Power-on button(s) 1 x Reset button(s) 1 x CPU Level Up button(s) 1 x ROG Connect switch(es) 1 x Go Button(s) Accessories Users manual I/O Shield 6 x SATA 6Gb/s cable(s) 1 x 3-Way SLI bridge(s) 1 x SLI bridge(s) 1 x CrossFire cable(s) 1 x Q-connector(s) (2 in 1) 1 x ROG Connect cable(s) 1 x Cable ties pack(s) 1 x ROG theme label(s) 1 x 12 in 1 ROG Cable Label(s) BIOS 32Mb Flash ROM, UEFI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.5, ACPI2.0a, Multi-Language BIOS Manageability WOL by PME, WOR by PME, PXE Support Disc Drivers Sound Blaster® X-Fi 2 Utility Kaspersky® Anti-Virus DAEMON Tools Pro Standard ROG CPU-Z ASUS Utilities Form Factor ATX Form Factor 12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )