CPU Intel Socket 775 Core™2 Quad/Core™2 Extreme/Core™2 Duo/Pentium® Extreme/Pentium® D/Pentium® 4 Processors
Compatible with Intel® 05B/05A/06 processors
Support Intel® next generation 45nm CPU
* Refer to www.asus.com for Intel CPU support list

Chipset Intel X48
Intel ICH9R
Intel Fast Memory Access Technology

Front Side Bus 1600/1333/1066/800 MHz
Memory 4 x DIMM, Max. 8 GB, DDR2 1200*/1066/800/667 ECC,Non-ECC,Un-buffered Memory
Dual Channel memory architecture
*DDR2 1200 is O.C. speed.
*Refer to www.asus.com or this user manual for the Memory QVL(Qualified Vendors Lidts).
Expansion Slots 2 x PCIe 2.0 x16 , support at full x16, x16 speed
3 x PCIe x1 ( the PCIEx1_1 (black) is compatible with audio slot)
2 x PCI 2.2

CrossFire Support ATI CrossFire graphics cards

Storage Southbridge
6 xSATA 3 Gb/s ports
Intel Matrix Storage Technology Support RAID 0,1,5,10
JMicron® JMB368 PATA controller
1 xUltraDMA 133/100/66/33 for up to 2 PATA devices

LAN Dual Gigabit LAN controllers, both featuring AI NET2
Support Teaming Technology
Audio SupremeFX II Audio Card
ADI 1988B 8 -Channel High Definition Audio CODEC
Coaxial / Optical S/PDIF out ports at back I/O
ASUS Noise Filter

IEEE 1394 2 x 1394a ports (1 port at back I/O, 1 port onboard)
USB 12 USB 2.0 ports (6 ports at mid-board, 6 ports at back panel)