spcifications:
CPU Intel® Socket 775 Core™2 Quad/Core™2 Extreme/Core™2 Duo/Pentium® D/ Celeron® dual-core / Celeron® Processors Compatible with Intel® 05B/05A/06 processors
Chipset Intel® P43 / ICH10 with Intel® Fast Memory Access Technology
Front Side Bus 1600(O.C)/1333/1066/800/533 MHz
Memory 4 x DIMM, Max. 16 GB, DDR 1066/800/667 Non-ECC,Un-buffered Memory
Dual Channel memory architecture
Expansion Slots 1 x PCIe x16 
2 x PCIe x1 
3 x PCI
Storage

 

Southbridge 
6 xSATA 3 Gb/s ports 
Marvell 88SE6102 PATA controller 
1 xUltraDMA 133/100/66 for up to 2 PATA devices
LAN

 

Realtek 8111C-VCO, PCIe Gb LAN controller featuring AI NET 2
Audio VIA VT1708S, 8 -Channel High-Definition Audio CODEC 
- Support Jack Detection and Multi-streaming 
- Coaxial S/PDIF out ports at back I/O 
- Noise-Filtering
USB 12 USB 2.0 ports (6 ports at mid-board, 6ports at back panel)
ASUS Unique Features ASUS Power Saving Solution: 
- ASUS AI Nap 
ASUS AI Life Features: 
- ASUS Express Gate 
ASUS Crystal Sound: 
- ASUS Noise Filter 
ASUS EZ DIY: 
- ASUS CrashFree BIOS 3 
- ASUS EZ Flash 2
Overclocking Features Intelligent overclocking tools: 
- ASUS AI Booster utility 
Precision Tweaker: 
- vCore: Adjustable CPU voltage at 6.25mV increment 
- vDIMM: 5-step DRAM voltage control 
SFS (Stepless Frequency Selection) 
- FSB tuning from 200MHz up to 600MHz at 1MHz increment 
- Memory tuning from 667MHz up to 1333MHz for DDR2 
- PCI Express frequency tuning from 100MHz up to160MHz at 1MHz increment 
Overclocking Protection: 
- ASUS C.P.R.(CPU Parameter Recall)
Special Features ASUS MyLogo 2
Back Panel I/O Ports 1 x PS/2 Keyboard 
1 x PS/2 Mouse 
1 x S/PDIF Out (Coaxial) 
1 x RJ45 port 
6 x 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 
6 x SATA connectors 
1 x CPU Fan connector 
1 x Chassis Fan connector 
1 x Power Fan 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
BIOS

 

8 Mb Flash ROM 
AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.5, 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
Accessories

 

UltraDMA 133/100/66 cable 
1 x Serial ATA cable 
1 x Serial ATA power cable 
I/O Shield 
User's manual 
* Note: The floppy disk drive cable is purchased separately
Support Disc

 

Drivers 
ASUS PC Probe II 
ASUS Update 
ASUS Express Gate 
Anti-virus software (OEM version)
Form Factor

 

ATX Form Factor 
12 x 7.6 ( 30.5 cm x 19.3 cm )