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
*This motherboard supports FSB 1600/1333/1066/800
** Please update the latest BIOS to support Intel 45nm CPU

Chipset
Intel P45
Inel ICH10R
Intel Fast Memory Access Technology

Front Side Bus
1600/1333/1066/800 MHz
Memory
4 x DIMM, Max. 16 GB, DDR2 1200*/1066/800/667 Non-ECC,Un-buffered Memory
Dual Channel memory architecture
*The chipset officially supports the memory frequency up to DDR2 800MHz. Tuned by ASUS Super Memspeed Technology, this motherboard natively supports up to DDR2 1200MHz
Please refer to ASUSTeK Computer or user manual for Memory QVL.
**When installing total memory of 4GB capacity or more, WindowsR 32-bit operation system may only recognize less than 3GB. Hence, a total installed memory of less than 3GB is recommended.
Expansion Slots
3 x PCIe x16 (blue @ x16 mode, black @ x4 or x1 mode) supports
2 x PCIe x1
2 x PCI

Storage
Intel ICH10R Southbridge
6 xSATA 3 Gb/s ports
Intel Matrix Storage Support SATA RAID 0,1,5,10

Marvell 88SE6121 controller
1 x UltraDMA 133/100/66 for up to 2 PATA devices
1 x External SATA SATA 3.0 Gb/s port (SATA On-the-Go)
Silicon Image SIL5723 Controller (Drive Xpert)
2 x SATA 3.0Gb/s ports
- Support EZ Backup and Super Speed

LAN
Gigabit LAN controllers, featuring AI NET2
Marvell 88E8056 / 88E8001® PCI-E Gigabit LAN controllers

Audio
ADI® AD2000B 8 -Channel High Definition Audio CODEC
Coaxial / Optical S/PDIF out ports
ASUS Noise Filter
ASUS AI Audio 2

IEEE 1394
LSI® FW3227 1394a controller supports 2 x 1394a ports (one at midboard; one at back panel)
USB
12 USB 2.0 ports (6 ports at mid-board, 6ports at back panel)
ASUS Unique Features
ASUS Power Saving Solution
- ASUS EPU 6-engine
- ASUS AI Nap
- ASUS 8-Phase Power Design
ASUS AI Life Features
- ASUS Express Gate
- ASUS AI Direct Link

ASUS Quiet Thermal Solution
- ASUS Fanless Design: Pure Copper Heat-pipe solution
- ASUS Fanless Stack Cool 2
- ASUS Fan Xpert

ASUS EZ DIY
- ASUS Drive Xpert
- ASUS Q-Connector
- ASUS O.C. Profile
- ASUS Q-Shield
- ASUS DieHard BIOS
- ASUS EZ Flash 2
Overclocking Features
Intelligent overclocking tools
- ASUS AI Booster Utility

Precision Tweaker 2
- vDIMM: 64 -step DRAM voltage control
- vCore: Adjustable CPU voltage at 0.00625V increment
- vChipset (NB): 48-step Chipset voltage control
- vCPU PLL: 64-step CPU PLL voltage control
- vVTT_CPU: 40-step Hyper Tansport voltage control

SFS (Stepless Frequency Selection)
- FSB tuning from 200MHz up to 800MHz at 1MHz increment
- Memory tuning from 667MHz up to 1333MHz for DDR2
- PCI Express frequency tuning from 100MHz up to 180MHz at 1MHz increment

Overclocking Protection
- ASUS C.P.R.(CPU Parameter Recall)

Other Features
ASUS MyLogo 3
Back Panel I/O Ports
1 x PS/2 Keyboard
2 x External SATA
1 x S/PDIF Out
1 x IEEE 1394a
2 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
6 x SATA connectors (Red)
1 x IEEE 1394a connector
1 x CPU Fan connector
3 x Chassis Fan connector
1 x Power Fan connector
1 x S/PDIF Out connector
2 x Drive Xpert SATA connectors (orange)
2 x4-pin ATX 12V Power connector
24 Power connector
Front panel audio connector
COM connector
Chassis Intrusion connector
CD/AUX audio in
System Panel (Q-connector)
1 x Power on switch
1 x Reset switch

BIOS
16 Mb Flash ROM
DMI 2.0
AMI BIOS
PnP
WfM 2.0
SM BIOS 2.4
ACPI 2.0a
ASUS EZ Flash 2
Manageability
WfM 2.0,DMI 2.0,WOL by PME,WOR by PME, PXE
O/S Compatibility
Windows Vista
Windows XP
Accessories
User's manual
1 x UltraDMA 133/100/66 cable
1 x Floppy disk drive cable
2 x SATA cable
1 2-port SATA power cable
I/O Shield
3 in 1 Q-connector

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