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? 45nm CPU

Chipset

Intel X48
Intel CH9R
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).
***When installing total memory of 4GB capacity or more, Windows 32-bit operation system may only recognize less than 3GB. Hence, a total installed memory of less than 3GB is recommended.

Expansion Slots

2 x PCIe 2.0 x16 (both @ x16 mode) supports CrossFire Technology
3 x PCIe x1 ( the PCIEx1_1 (black) is compatible with audio slot)
2 x PCI

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

Marvell88E8056? PCIe Gigabit LAN controller featuring AI NET2

Audio

SupremeFX II Audio Card
ADI? AD1988B 8 -Channel High-Definition Audio CODEC
Coaxial / Optical S/PDIF out ports at back I/O
ASUS Noise Filter
AI Audio 2

IEEE 1394

VIA VT6308P controller supports 2 x 1394a ports (one at midboard; one at back panel)

USB

12 USB 2.0 ports (6 ports at mid-board, 6 ports at back panel)

ASUS Unique Features

ASUS Power Saving Solution
- ASUS EPU (Energy Processing Unit)
- ASUS 3rd Generation 8-phase Power
- ASUS AI Nap
ASUS Quiet Thermal Solution
- ASUS Fanless Design: Pure Copper Heat-pipe solution
- ASUS Fanless Design: Stack Cool 2
- ASUS Q-Fan 2
- ASUS Optional Fan for Water-cooling or Passive-Cooling only

ASUS EZ DIY
- ASUS Q-Connector
- ASUS Q-Shield
- ASUS O.C. Profile
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 2

Overclocking Features

Intelligent overclocking tools
- ASUS AI Booster Utility
- 2-Phase DDR2
Precision Tweaker 2
- vDIMM: 43 -step DRAM voltage control
- vCore: Adjustable CPU voltage at 0.00625V increment
- vChipset (N.B.): 25-step voltage control
- vFSB Termination: 15-step voltage control
- vCPU PLL: 64-step voltage control
SFS (Stepless Frequency Selection)
- FSB tuning from 200MHz up to 800MHz at 1MHz increment
- Memory tuning from 667MHz up to 3200MHz
- PCI Express frequency tuning from 100MHz up to 150MHz at 1MHz increment
Overclocking Protection
- ASUS C.P.R.(CPU Parameter Recall)

Special Features

Multi-language BIOS
ASUS MyLogo 3

Back Panel I/O Ports

1 x PS/2 Keyboard
1 x S/PDIF Out
1 x IEEE 1394a
1 x LAN(RJ45) port
6 x USB 2.0/1.1

Internal I/O Connectors

3 x USB connectors support additional 6 USB ports
1 x Floppy disk drive connector
1 x IDE connector
6 x SATA connectors
1 x IEEE 1394a connector
1 x CPU Fan connector
1 x Chassis Fan connector
1 x Power Fan connector
1 x S/PDIF Out connector
2 x4-pin ATX 12V Power connector
24-pin ATX Power connector
Front panel audio connector
Chassis Intrusion connector
CD/AUX audio in
System Panel

BIOS

16 Mb Flash ROM
DMI 2.0
AMI BIOS
PnP
WfM 2.0
SM BIOS 2.3
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

UltraDMA 133/100/66 cable
FDD cable
6 x Serial ATA cables
1 x 2-port Serial ATA power cable
ASUS Q-shield
User's manual
3 in 1 Q-connector
1 x 2-port USB2.0 / 1-port IEEE1394 module
1 x Optional Fan for Water-Cooling or Passive-Cooling only
SupremeFX II Audio card

Support Disc

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

Form Factor

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