-AMD Socket 939 Athlon 64FX / Athlon 64
- NVIDIA ? nForce ? 4 Ultra
- PCI Express Architecture
- SATA2.0
- PEG Link
- Precision Tweaker
CPU Supports AMD Socket 939 Athlon 64FX/Athlon 64 X2/Athlon 64
AMD64 architecture enables simultaneous 32- and 64-bit computing
Supports AMD Cool 'n' Quiet Technology
Chipset NVIDIA nForce4 Ultra
Front Side Bus 2000 MT/s, 1600MT/s
Memory 4 x 184-pin DIMM Sockets support max. 4GB DDR400/DDR333/DDR266 ECC/ non-ECC un-buffered DDR SDRAM memory
Dual Channel Memory Architecture
Expansion Slots 1 x PCI Express x16 slot
2x PCI Express x1
1x PCI Express x4 (supports up to 1GB/s)
3 x PCI
Storage/RAID nForce4 Storage:
- 4 x SATA 3Gb/s
- 2 x UltraDMA 133/100/66/33
- NVRAID : RAID0, RAID1, RAID 0+1 and JBOD span cross SATA and PATA
LAN nForce4 built-in Gbit MAC with external PHY :
- NV ActiveArmor
- NV Firewall
Audio Realtek ALC850, 8-channel CODEC
Audio Sensing and Enumeration Technology
Coaxial/Optical S/PDIF out ports on back I/O
USB Max. 10 USB2.0 ports
ASUS AI Proactive Features AI NOS ? (Non-delay Overclocking System)
AI NET2 network diagnosis before entering OS
Overclocking Features AI NOS ? (Non-delay Overclocking System)
AI Overclocking (intelligent CPU frequency tuner)

Precision Tweaker:
- vDIMM: 9-step DRAM voltage control
- vCore: Adjustable CPU voltage at 0.0125 increment
- SFS (Stepless Frequency Selection): allowing FSB tuning from 200MHz up to 400MHz at 1MHz increment
- PCIe Frequency: allowing PCIe frequency from 100MHz up to 200MHz at 1MHz increment

Fixed PCIe/PCI/SATA frequencies.
ASUS C.P.R.(CPU Parameter Recall)
Other ASUS Special Features ASUS EZ Flash
ASUS CrashFree BIOS 2
ASUS MyLogo2
ASUS Multilanguage BIOS
ASUS Instant Music Lite
Back Panel I/O Ports 1 x Optical + 1 x Coaxial S/PDIF Output
1 x PS/2 Keyboard
1 x PS/2 Mouse
1 x Parallel
1 x RJ45
4 x USB
8-Channel Audio I/O
Internal I/O Connectors 3 x USB 2.0 connector supports additional 6 USB 2.0 ports
1 x COM connector
1 x GAME/MIDI connector
CPU Fan / 2x Chassis Fan/ Power Fan/ Chipset Fan connectors
Front panel audio connector
Chassis Intrusion connector
CD audio-in connector
24-pin ATX Power connector
4-pin ATX 12V Power connector
Accessories 2 x Ultra DMA 133/100/66 cable
1 x IDE cable
1 x FDD cable
1 x COM cable
1 x 2-port USB2.0/Game module
1 x 2-port USB2.0 USB module
4 x SATA power cable
2 x 2-port SATA power cable
Form Factor ATX Form Factor, 12"x 9.6"(30.5cm x 24.5cm)