CPU
LGA775 socket for Intel? Core?2 Extreme/ Intel? Core?2 Duo/ Intel? Pentium D/ Intel? Pentium 4/ Intel? Celeron D
Compatible with Intel? 06/05B/05A processors
Support Intel?EM64T/Hyper-Threading Technology
Only PCB R2.0(or later version) supports FSB 1066 MHz
Due to chipset limitation, the Intel Enhanced Intel SpeedStep Technology, C1E, and TM2 are not supported in this model)

Chipset

VIA P4M800 PRO
VIA VT8251

Front Side Bus
1066/800/533 MHz
Only PCB R2.0(or later version) supports FSB1066MHz

Memory
2 x 240-pin DIMM Sockets support max. 2GB DDR2 533/400 non-ECC, unbuffered memory
2 x 184-pin DIMM Sockets support max. 2GB DDR 400/333/266 non-ECC, unbuffered memory
(Note: DDR and DDR2 memory can not be used simultaneously)

Expansion Slots
1 x AGP8X/4X (1.5V only)
1 x PCI Express x1
2 x PCI, PCI 2.2

VGA
Integrated VIA UniChrome Graphics, up to 64MB shared memory

Storage/RAID
South Bridge: VT8251
2 x UltraDMA 133/100/66
4 x Serial ATA 3Gb/s with RAID 0, 1, 0+1, 5 & JBOD function

LAN
Realtek RTL8201CL 10/100 LAN Controller

Audio
Realtek ALC653 AC'97 6-channel Audio CODEC

Other ASUS Special Features
CrashFree BIOS 2
ASUS EZ Flash
ASUS Q-Fan
ASUS MyLogo

BIOS
4 Mb Flash ROM,AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.3

Back Panel I/O Ports
1 x Parallel port
1 x Serial port
1 x VGA out
1 x PS/2 Keyboard
1 x PS/2 Mouse
1 x 6-Channel Audio I/O
1 x RJ45
4 x USB 2.0/1.1

Internal I/O Connectors
2 x USB 2.0/1.1 connector supports additional 4 USB ports
4 x SATA connector
2 x IDE connector
1 x Floppy disk drive connector
1 x S/PDIF out connector
CPU/Chassis fan connectors
Chassis Intrusion
CD/AUX audio-in connector
24-pin EATX Power connector
4-pin ATX 12V Power connector
Game/MIDI connector
System panel connector
Front panel audio connector

Support CD
Drivers
ASUS PC Probe
ASUS LiveUpdate Utility
Anti-virus software (OEM version)

Accessories
User's manual
1 x Serial ATA cable
1 x Serial ATA Power cable
1 x UltraDMA 100/66 cable
1 x FDD cable
1 x I/O shield

Form Factor
mATX Form Factor, 9.6?x 9.6?(24.5cm x 24.5cm)

USB
Max. 8 USB 2.0 ports

Manageability
WOL by PME,WOR by PME, Chassis Intrusion, PXE and RPL