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
** Please update the latest BIOS to support Intel 45nm CPU

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

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)

ASUS AI Lifestyle Features

ASUS AI Lifestyle Features:
- ASUS AI Gear2
- ASUS AI Nap
- ASUS Fanless Design: Heat-pipe solution
- ASUS Q-Fan 2
ASUS Crystal Sound:
- ASUS Noise Filter
ASUS EZ DIY:
- ASUS Q-Connector
- ASUS O.C. Profile
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 2
- ASUS AI Slot Detector

Overclocking Features

Intelligent overclocking tools:
- AI NOS™ (Non-delay Overclocking System)
- ASUS AI Booster utility
Precision Tweaker:
- vCore: Adjustable CPU voltage at 0.0125V increment
- vDIMM: 16-step DRAM voltage control
- vChipset: 4-step Chipset voltage control
SFS (Stepless Frequency Selection):
- FSB tuning from 200MHz up to 800MHz at 1MHz increment
- Memory tunning from 667MHz up to 1333MHz for DDR2
- PCI Express frequency tuning from 100MHz up to150MHz at 1MHz increment
Overclocking Protection:
- ASUS C.P.R.(CPU Parameter Recall)

Other Features

ASUS MyLogo 2

Back Panel I/O Ports

1 x PS/2 Keyboard
1 x S/PDIF Out (Coaxial)
1 x External SATA
1 x IEEE1394a
1 x RJ45 port
6x USB 2.0/1.1
8-channel Audio I/O

Internal I/O Connectors

3 x USB connectors support additional 6 USB ports
1 x Floppy disk drive connector
1 x IDE connector
1 x COM connector
5x SATA connectors
1 x CPU Fan connector
2x Chassis Fan connector
1 x Power Fan connector
1 x IEEE1394a connector
Front panel audio connector
1 x S/PDIF Out Header
Chassis Intrusion connector
CD audio in
24-pin ATX Power connector
1 x 4-pin ATX 12V Power connector
System Panel(Q-Connector)

BIOS

8 Mb Flash ROM, AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.3, ACPI 2.0a, ASUS EZ Flash 2, ASUS CrashFree BIOS 3

Manageability

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

O/S Compatibility

Windows Vista/XP

Accessories

UltraDMA 133/100/66 cable
FDD cable
2x Serial ATA cables
1 x 2-port Serial ATA power cable
I/O Shield
User's manual
3 in 1 Q-connector

Support CD

Drivers
ASUS PC Probe II
ASUS Update
ASUS AI Suite
Anti-virus software (OEM version)

Form Factor

ATX Form Factor, 12"x 9.6" (30.5cm x 24.4cm)