specifications:
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
Support Intel® 45nm Multi-Core CPU
Chipset Intel® P45 / ICH10 with Intel® Fast Memory Access Technology
Front Side Bus 1600/1333/1066/800 MHz
Memory 4 x DIMM, Max. 16 GB, DDR2 1200/1066/800 Non-ECC,Un-buffered Memory
Dual Channel memory architecture
*Refer to www.asus.com or user manual for the Memory QVL (Qualified Vendors Lists) 
**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 1 x PCIe 2.0 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, 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 
- ASUS 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 Lifestyle 
- ASUS Express Gate 
ASUS Crystal Sound 
- ASUS Noise Filter 
ASUS EZ DIY 
- ASUS O.C. Profile 
- ASUS CrashFree BIOS 3 
- ASUS EZ Flash 2 
- ASUS MyLogo 2
Overclocking Features Intelligent overclocking tools
- ASUS AI Booster Utility
Precision Tweaker 
- vDIMM: 6 -step DRAM voltage control
- vCore: Adjustable CPU voltage at 6.25 mV increment
SFS (Stepless Frequency Selection)
- FSB tuning from 200MHz up to 600MHz at 1 MHz increment 
- PCI Express frequency tuning from 100MHz up to 160MHz at 1MHz increment 
Overclocking Protection
- ASUS C.P.R.(CPU Parameter Recall)
Back Panel I/O Ports 1 x PS/2 Keyboard 
1 x PS/2 Mouse 
1 x Coaxial S/PDIF Out 
1 x LAN (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 Serial ATA connectors 
1 x CPU Fan connector 
1 x Chassis Fan connector 
1 x Power Fan connector 
1 x Front panel audio connector 
1 x S/PDIF Out Header 
1 x Chassis Intrusion connector 
1 x CD audio in connector 
24-pin ATX Power connector 
1 x 4-pin ATX 12V Power connector 
1 x System Panel connector
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 1 x UltraDMA 133/100/66 cable 
2 x Serial ATA cables 
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 
ASUS Ai Suite 
Anti-virus software (OEM version)
Form Factor ATX Form Factor 
12 inch x 7.6 inch ( 30.5 cm x 19.3 cm )