* Intel ® P43 chipset * Intel ® Core ™ 2 Extreme / Core ™ 2 Quad / Core ™ 2 Duo / Pentium ® Extreme / Pentium ® D / Pentium ® 4 * ASUS EPU-Six Engine ASUS Express Gate * Design of alimentción ASUS 8-Phase Polymer Capacitors * 100% Japan-made high quality Specifications: CPU Intel Socket 775 Core ™ 2 Quad / Core ™ 2 Extreme / Core ™ 2 Duo / Pentium ® Extreme / Pentium ® D / Pentium ® 4 Intel ® Core ™ 2 Extreme / Core ™ 2 Quad / Core ™ 2 Duo / Pentium ® dual -core/Celeron ® dual-core/Celeron ® Processors Compatible with Intel ® 05B/05A/06 Intel ® 45nm Multi-Core CPU Chipset Intel P43 ICH10R Intel Fast Memory Access Technology Front Side Bus * 1600/1333/1066/800 * Overclock speed (MHz) Memory 4 x DIMM, Max. 16 GB, DDR2 1066/800/667 Non-ECC, Un-buffered Memory Dual Channel memory architecture * Refer to www.asus.com or this user manual for Memory QVL (Qualified Vendors Lists). ** It is recommended to install up to 3GB memory because it is the most the OS, Windows ® 32-bit recognized. Expansion Slots 1 x PCIe 2.0 slots, support ATI CrossFireX ™ technology at x8 link (PCIe x16_1 blue, PCIe x16_2 black *) 2 x PCIe x1 (PCIEx1_1 (black) is compatible with audio slot) 3 x PCI Storage Southbridge 6 xSATA 3 Gb / s ports Intel Matrix Storage Technology Support RAID 0,1,5,10 PCIe Storage Controller 1 x UltraDMA 133/100/66 for up to 2 PATA devices 1 x eSATA 3 Gb / s LAN PCIe Gigabit LAN controller featuring AI NET2 Audio Realtek ALC1200 8-Channel High-Definition Audio CODEC - Support Jack-Detection, Multi, and Jack-Retasking on the front panel - Coaxial / Optical S / PDIF port out on back I / O - ASUS Noise-Filtering IEEE 1394 1 Controller LSI L-FW3227 1394th supports 2 x 1394a ports (1 on the plate, 1 on rear) USB 12 USB 2.0 ports (6 on board, 6 ports at back panel) ASUS AI Lifestyle Features ASUS Power Saving Solutions: - ASUS EPU - Six Engine - Power Design ASUS 8-phase - AI Nap ASUS Quiet Thermal Solution: - ASUS Fanless Design: Aesthetic sink temperature ASUS EZ DIY: - AI Direct Link - ASUS Q-Shield - ASUS Q-Connector - ASUS O.C. Profile - ASUS CrashFree BIOS 3 - ASUS EZ Flash 2 ASUS Express Gate ASUS MyLogo 2 Overclocking Features Intelligent overclocking tools - ASUS AI Booster Utility ASUS AI Booster Precision Tweaker 2 - VDIMM: voltage control 25-step DRAM voltage control 64 DRAM - VCore: Adjustable CPU voltage at 0.0125V increment with a 0.00625V - VChipset 48-step voltage control levels - VCPUPLL: reference voltage control 64-levels - Termination vFSB voltage control 15-levels SFS (Stepless Frequency Selection) - FSB tuning from 200MHz up to 800MHz at 1MHz - PCI Express frequency tuning from 100MHz to 180MHz at 1MHz Overclocking Protection - ASUS C.P.R. (CPU Parameter Recall) Rear Panel Ports 1 x PS / 2 Keyboard (Violate) 1 x PS / 2 Mouse (Green) 1 x S / PDIF Out (Coaxial + Optical) 1 x IEEE1394a 1 x RJ45 1 x eSATA 6 x USB 2.0/1.1 8-channel Audio I / O Onboard I / S Internal 3 x USB connectors support additional 6 USB 2.0 ports 1 x COM 6 x SATA 1 x CPU Fan connector 2 x Chassis Fan connector 1 x Power Fan connector 1 x IEEE1394a 1 x S / PDIF Out Chassis Intrusion connector CD audio in 24-pin ATX Power connector 8-pin ATX 12V System Panel (Q-Connector) BIOS 8 Mb Flash ROM AMI BIOS PnP DMI 2.0 WfM 2.0 SM BIOS 2.4 ACPI 3.0a Accessories UltraDMA 133/100/66 cable FDD cable Serial ATA cable Serial ATA power cable 3 in 1 Q-connector ASUS Q-Shield User Manual Support CD Drivers ASUS PC Probe II ASUS AI Suite Anti-virus software (OEM version) ASUS Update Form Factor ATX Form Factor 12 inch x 8.8 inch (30.5 cm x 22.4 cm)