CPU

Intel® Socket 1156 Core™ i7 Processor/Core™ i5 Processor/ 
Supports Intel® Turbo Boost Technology 

Chipset

Intel® P55 Express Chipset 

Memory

4 x DIMM, Max. 16 GB, DDR3 2133(O.C.)*/1600/1333 Memory
Dual Channel memory architecture
Supports Intel® Extreme Memory Profile (XMP) 
*Hyper DIMM support is subject to the physical characteristics of individual CPUs. Some hyper DIMMs only support one DIMM per channel. Please refer to Memory QVL for details. 
**Refer to www.asus.com or this user manual for the Memory QVL (Qualified Vendors Lists).

Expansion Slots

2 x PCIe 2.0 x16 (single at x16 or dual at x8/x8 mode) 
1 x PCI Express 2.0 x16 slots (at x4 mode, 2.5GT/s) 
2 x PCI Express 2.0 x1 (2.5GT/s) 
2 x PCI

Multi-GPU Support

Supports NVIDIA® Quad-GPU SLI™ Technology 
Supports ATI® Quad-GPU CrossFireX™ 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 and SATA controller 
1 x UltraDMA 133/100/66 for up to 2 PATA devices 
1 x SATA 3Gb/s port (black) 

JMicron® JMB322 (Drive Xpert Technology) : 
 - 2 x SATA 3.0 Gb/s ports (navy blue and gray) 
 - Supports EZ Backup and SuperSpeed functions 
*Drive Xpert function is available only when the hard disk drives are set as data drives.

LAN

Dual Gigabit LAN controllers Realtek® 8112L / 8110SC Gigabit LAN controller featuring AI NET2 and Teaming 

Audio

VIA® VT2020 10-Channel High Definition Audio CODEC 
- Absolute Pitch BD192/24 featuring ENVY HD 
- DTS Surround Sensation UltraPC 
- BD audio layer Content Protection 
- Supports Jack-Detection, Multi-streaming, Front Panel Jack-Retasking 
- Coaxial / Optical S/PDIF out ports at back I/O

IEEE 1394

VIA® 6308P controller supports 2 x 1394a ports (one at mid-board; one at back panel)

USB

14 USB 2.0/1.1 ports (6 ports at mid-board, 8 ports at back panel)

Back Panel I/O Ports

1 x IEEE 1394a 
2 x LAN(RJ45) port 
8 x USB 2.0/1.1 
10 -Channel Audio I/O 
1 x Clr CMOS switch 
1 x PS/2 Keyboard (Purple) 
1 x PS/2 mouse port (Green) 
1 x Coaxial S/PDIF Output 

Internal I/O Connectors

3 x USB connectors support additional 6 USB ports 
1 x IDE connector 
7 x SATA connectors 
1 x IEEE 1394a connector 
1 x CPU Fan connector 
1 x Power Fan connector 
2 x Drive Xpert SATA connectors (navy blue and gray) 
2 x Chassis Fan connector (1x4-pin, 1x3-pin) 
Front panel audio connector 
1 x S/PDIF Out Header 
1 x CD audio in 
1 x 24-pin ATX Power connector 
1 x 8-pin ATX 12V Power connector 
System Panel(Q-Connector) 
1 x TURBO_CON header (for TurboV Remote) 
1 x MemOK! button 
1 x Power on switch 
1 x Reset switch 

BIOS

16 Mb Flash ROM , AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.5, ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFree BIOS 3 

Manageability

WfM 2.0,DMI 2.0,WOL by PME,WOR by PME,PXE

Accessories

1 x TurboV Remote 
1 x 2-port USB and eSATA module 
ASUS Q-Shield 
1 x ASUS SLI bridge connector 
User's manual
1 x UltraDMA 133/100/66 cable 
6 x SATA cable(s) 
2 in 1 Q-connector 

Support Disc

Drivers
Anti-virus software (OEM version)
ASUS Update
ASUS Utilities 

Form Factor

ATX Form Factor 
12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )