CPU
AMD Socket AM2+ Athlon64/Athlon64 FX/Athlon64 X2 Processors
AMD Cool 'n' Quiet™ Technology
*Support CPU up to 140W
Chipset
AMD 790FX/SB600

System Bus
Up to 5200 MT/s; HyperTransport™ 3.0 interface for AM2+ CPU
2000 / 1600 MT/s for AM2 CPU
Memory
4 x DIMM, Max. 8 GB, DDR2 1066/800/667/533 ECC,Non-ECC,Un-buffered Memory
Dual Channel memory architecture
* DDR2 1066 is supported by AM2+ CPU only
** Refer to ASUSTeK Computer or user manual for Memory QVL (Qualify Vendor List)
***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
4 x PCIe x16 with ATI CrossFireX™ support, @ dual x16; tripple x16 / x8 / x8; or quad x8 modes
2 x PCI 2.2
Support PCIe 2.0 / 1.0 Architecture

Storage
Southbridge
1 xUltraDMA 133/100/66
4 xSATA 3 Gb/s ports Support RAID 0,0+1
Marvell® 6121 and 6111 SATA controller
1 xExternal SATA 3Gb/s port (SATA On-the-Go)
2 xSATA 3Gb/s ports with RAID 0, and 1 support

LAN
Marvel® PCIe Gigabit LAN controller featuring AI NET 2

Wireless LAN
54 Mbps IEEE 802.11g and backwards compatible with 11 Mbps IEEE 802.11b
Software Access Point mode
Station mode: Infrastruceure mode and Ad-Hoc mode

Audio
ADI® AD1988 8 -Channel High Definition Audio CODEC
Coaxial / Optical S/PDIF out ports at back I/O

IEEE 1394
Agere® FW322 supports 2 x 1394a ports
USB
10 USB 2.0 ports (4 ports at mid-board, 6 ports at back panel)
ASUS Unique Features
ASUS Quiet Thermal Solution
- ASUS AI Gear 2
- ASUS AI Nap
- ASUS 8-Phase Power Design
- ASUS Fanless Design: Pure Copper Heat-pipe solution
- ASUS Fanless Design: Stack Cool 2
- ASUS Q-Fan
- ASUS Optional Fan for Water-cooling or Passive-Cooling only

ASUS Crystal Sound
- ASUS Noise Filter
- ASUS AI Audio 2
ASUS EZ DIY
- ASUS Q-Connector
- ASUS Q-Shield
- ASUS O.C. Profile
- ASUS CrashFree BIOS 3
- ASUS EZ Flash
ASUS WiFi@Home
- ASUS WiFi-AP Solo

Special Features
Multi-language BIOS
ASUS MyLogo 2
Uses 100% All High-quality Conductive Polymer Capacitors!
Overclocking Features
Intelligent overclocking tools
- AI Overclocking (intelligent CPU frequency tuner)
- ASUS AI Booster Utility
- ASUS AI NOS (Non-delay Overclocking System)
Precision Tweaker 2
- vDIMM: 35 -step DRAM voltage control
- vCore: Adjustable CPU voltage at 0.0125V increment
- vChipset 16-step voltage control
SFS (Stepless Frequency Selection)
- FSB tuning from 200MHz up to 600MHz at 1MHz increment
- Memory tuning from 533MHz up to 1066MHz
- PCI Express frequency tuning from 100MHz up to 150MHz at 1MHz increment
Overclocking Protection
- ASUS C.P.R.(CPU Parameter Recall)

Back Panel I/O Ports
1 x PS/2 Keyboard
1 x External SATA
1 x S/PDIF Out (Coaxial + Optical)
1 x IEEE 1394a
1 x LAN(RJ45) port
6 x USB 2.0/1.1
8 -Channel Audio I/O
1 x WiFi-AP Solo™ antenna jack
Internal I/O Connectors
2 x USB connectors support additional 4 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
2 x Chassis Fan connector
1 x Power Fan connector
1 x S/PDIF Out connector
1 x8-pin ATX 12V Power connector
24-pin Power connector
Front panel audio connector
COM connector
Chassis Intrusion connector
CD/AUX audio in
System Panel

BIOS
8 Mb Flash ROM
DMI 2.0
AMI BIOS
PnP
WfM 2.0
SM BIOS 2.3
ACPI 2.0a
ASUS EZ Flash 2
ASUS CrashFree BIOS 3
Accessories
ASUS Cool Mempipe
ASUS CrossFire Bridge Cable
UltraDMA 133/100/66 cable
FDD cable
SATA cables
SATA power cables
Q-Shield
User's manual
1 x Multi-function module (IEEE 1394 + USB2.0)
3 in 1 Q-connector
Optional Fan for Water-Cooling or Passive-Cooling only
ASUS WiFi-AP Solo omni-directional antenna
Support Disc
Drivers
ASUS PC Probe II
ASUS AI Suite
Anti-virus software (OEM version)
ASUS Update
ASUS WiFi-AP Solo Wizard (Wireless Edition only)

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