CPU LGA775 socket for Intel® 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 multi-core CPU
*This motherboard supports FSB 1333/1066/800

Chipset Intel® P35 / ICH9 with Intel® Fast Memory Access Technology
Front Side Bus 1333 / 1066 / 800 MHz
Memory 4 x DIMM, max. 8GB, DDR2 1066*/800 / 667 MHz, non-ECC, un-buffered memory
Dual channel memory architecture
* The chipset officially supports the memory frequency up to DDR2 800MHz. Tuned by ASUS Super Memspeed Technology, this motherboard natively supports up to DDR2 1066MHz
Please refer to www.asus.com or user manual for Memory QVL.
Expansion Slots 2 x PCI-E x16 (blue @ x16 mode, black @ x4 or x1 mode) supports CrossFire Technology
1 x PCI-E x1
3 x PCI

Storage Southbridge
- 4 x SATA 3.0 Gb/s ports
JMicron® JMB363 PATA and SATA controller
- 1 x UltraDMA 133/100/66 for up to 2 PATA devices
- 1 x SATA 3.0 Gb/s ports
- 1 x External SATA 3.0 Gb/s port (SATA On-the-Go)
- Supports SATA RAID 0,1 and JBOD (only supports raid on external e-sata and one internal sata-e2 port)

LAN PCIe Gb LAN controller featuring AI NET2

Audio Realtek ALC 883, 8-channel High-Definition Audio CODEC
- Support Jack-Sensing, Enumeration, Multi-streaming
- Coaxial S/PDIF out ports at back I/O
- ASUS Noise Filter

IEEE 1394 VIA VT6308P controller supports 2 x IEEE 1394a ports (one at midboard; one at back panel)
USB 12 x USB 2.0 ports (6 ports at mid-board, 6ports at back panel)