Intel LGA1156 Platform / Intel P55 Express Chipset True USB (Universal Serial Bus) 3.0 or SATA 6 Gb/s Support ASUS Hybrid Technology Turbo V EVO T. Probe Technology for Active Cooling ASUS 16 Hybrid Phase Design CPU Intel Socket 1156 Core i 7 Processor/ Core i 5 Processor/ Core i 3 Processor Supports Intel Turbo Boost Technology Chipset Intel P55 Express Chipset Refer to www.asus.com for full list of compatible processors Memory 4 x DIMM, Max. 16 GB, DDR3 2200 (O.C.)*/1600/1333/1066 Non-ECC, Un-buffered Memory Dual Channel memory architecture Supports Intel Extreme Memory Profile (XMP) Refer to www.asus.com or this user manual for the Memory QVL (Qualified Vendors Lists). Expansion Slots 1 x PCIe 2.0 x 16 (single at x 16) 1 x PCI Express 2.0 x 16 slots (@x 4 mode, 2.5GT/s, black slot) 3 x PCI Express 2.0 x 1 (2.5GT/s, gray slots) 2 x PCI Multi-GPU Support Supports ATI Quad-GPU Cross Fire X Technology Storage Intel P55 Express Chipset built-in 6 x SATA 3.0 Gb/s ports Intel Matrix Storage Technology Support RAID 0, 1, 5, 10 JMicron JMB363 PATA & SATA controller 1 x Ultra DMA 133/100/66 for up to 2 PATA devices 1 x External SATA 3 Gb/s port 1 x SATA 3 Gb/s port (black) Marvell SATA 6 Gb/s controller: 2 x SATA 6.0 Gb/s ports (gray) LAN Realtek 8112L Gigabit LAN controller featuring AI NET2 Audio VIA VT1828S 8-Channel High Definition Audio CODEC Absolute Pitch BD192/24 DTS Surround Sensation Ultra PC BD audio layer Content Protection Supports Jack-Detection, Multi-streaming, Front Panel Jack-Retasking Optical S/PDIF out ports at back I/O IEEE 1394 VIA 6308P controller supports 2 x 1394a port (s) (one at mid-board; one at back panel) USB NEC USB (Universal Serial Bus) 3.0 controller: 2 x USB (Universal Serial Bus) 3.0 ports (blue; at back panel) Intel P55 Express Chipset: 12 x USB (Universal Serial Bus) 2.0/1.1 ports (6 ports at mid-board, 6 ports at back panel) ASUS Unique Features ASUS IO Level UP for Ultra Performance True USB (Universal Serial Bus) 3.0 or True SATA 6 Gb/s Support ASUS Xtreme Design: ASUS Hybrid Processor Turbo V EVO Auto Tuning, Turbo V & Turbo Key 16 Hybrid Phase T. Probe Technology for Active Cooling 12+2 Phase Power Design 16 Hybrid Phase = 12+2 Phase x T. Probe ASUS Hybrid OS
- Express Gate ASUS Xtreme Design ASUS Exclusive Features Mem OK! ASUS EPU ASUS Quiet Thermal Solution ASUS Fanless Design: Stylish Heat-sink solution ASUS Fanless Design: Stack Cool 3 ASUS Fan Xpert ASUS Crystal Sound ASUS Noise Filter ASUS EZ DIY ASUS Q-Shield ASUS Q-Connector ASUS O.C. Profile ASUS Crash Free BIOS 3 ASUS EZ Flash 2 ASUS My Logo 2 Multi-language BIOS ASUS Q-Design ASUS Q-LED (CPU, DRAM, VGA, Boot Device LED) ASUS Q-Slot ASUS Q-DIMM Overclocking Features Precision Tweaker 2 v Core: Adjustable CPU voltage at 0.00625V increment v IMC: 97-step IMC voltage control v DRAM Bus: 104-step DRAM voltage control v PCH: 36-step chipset voltage control v CPU_PLL: 56-step reference voltage control SFS (Stepless Frequency Selection) PCI Express frequency tuning from 100 M Hz up to 200 M Hz at 1 M Hz increment Internal Base Clock tuning from 80 M Hz up to 500 M Hz at 1 M Hz increment Overclocking Protection ASUS C.P.R. (CPU Parameter Recall) Back Panel I/O Ports 1 x PS/2 mouse port (Green) 1 x PS/2 Keyboard (violet) 6 x USB (Universal Serial Bus) 2.0/1.1 1 x S/PDIF Out (Optical) 1 x IEEE 1394a 1 x External SATA 3 Gb/s 1 x LAN (RJ45) port 2 x USB (Universal Serial Bus) 3.0/2.0 ports (blue) 8 -Channel Audio I/O Internal I/O Connectors 3 x USB (Universal Serial Bus) connectors support additional 6 USB (Universal Serial Bus) ports 1 x IDE connector 1 x IEEE 1394a connector 1 x CPU Fan connector 1 x Power Fan connector 1 x COM port connector 2 x SATA 6.0 Gb/s connectors (gray) 7 x SATA 3.0 Gb/s connectors (blue from P55, black from JMB363) 2 x Chassis Fan connector (1x 4-pin, 1x 3-pin) Front panel audio connector 1 x S/PDIF Out Header CD audio in 24-pin ATX Power connector 1 x 8-pin ATX 12V Power connector System Panel (Q-Connector) 1 x Mem OK! button 1 x IO Level UP button BIOS 16 Mb Flash ROM, AMI BIOS, Pn P, DMI2.0, Wf M2.0, SM BIOS 2.5, ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS Crash Free BIOS 3 Manageability Wf M 2.0, DMI 2.0, WOL by PME, WOR by PME, PXE Accessories Users manual 1 x Ultra DMA 133/100/66 cable 2 in 1 Q-connector 2 x Serial ATA 6.0 Gb/s cables 2 x Serial ATA 3.0 Gb/s cables ASUS Q-Shield Support Disc Drivers ASUS Update ASUS Utilities Form Factor ATX Form Factor 12 inch x 9.6 inch (30.5 cm x 24.4 cm )