M4A78-
Brand New Design Optimized for AM3 CPU

Specifications
CPU AMD AM3/AM2+/AM2 ;Phenom™II /Athlon™II /Phenom™ / Athlon™ /Sempron™ Processors
Support 45nm Phenom™ II CPU
AMD Cool "n" Quiet™ 2.0 Technology (by CPU type)
Support CPU up to 125W
*Refer to www.asus.com for the AMD CPU support list
Chipset AMD 780G/SB700


System Bus Up to 5200 MT/s HyperTransport™ 3.0 interface for AM3 / AM2+ CPU
Memory 4 x DIMM, Max. 16 GB, DDR2 1200(O.C.)/1066*/800/667 ECC,Non-ECC,Un-buffered Memory
Dual Channel memory architecture
*Due to AMD CPU limitation, DDR2 1066 is supported by AM2+/AM3 CPU for one DIMM per channel only.
*Due to OS limitation, 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.
*Refer to www.asus.com or user manual for Memory QVL (Qualify Vendor List)
Expansion Slots 1 x PCIe x16
1 x PCIe x1
2 x PCI

VGA Integrated ATI Radeon HD3200
Max. shared memory: 256 MB
Supports DVI-D with HDCP compliant with max. resolution 2560x1600 (@ 60Hz dual-link)
Supports HDMI™ Technology with max. resolution up to 1920 x 1200 (1080P)
Supports RGB with max. resolution 2048 x 1536 (@85Hz)
Hybrid CrossFireX™ Support (For Windows Vista only)
Dual VGA output support:
RGB & DVI
RGB & HDMI
*Refer to www.amd.com for the Hybrid CrossFireX selected GPUs.
*To playback the HD-DVD and Blu ray Disc we recommended system configuration above Graphic shared memory 256MB/Dual-Core CPU minimum/Minimum 1GB memory of Dual-channel DDR2 667 or Single -chanel DDR2 800.
Storage Chipset
1 xUltraDMA 133/100
5 xSATA 3 Gb/s ports Support RAID 0,1,10
1 x External SATA 3Gb/s support JBOD


*Due to the Windows XP/ Vista limitation, the RAID array with the total capacity over 2TB cannot be set as a boot disk. A RAID array over 2TB can only be set as a data disk only. For more information, please refer to http://support.microsoft.com/kb/946557/en-us
LAN PCIe Gb LAN
Audio ALC887 High Definition Audio 8-Channel CODEC
Supports Jack-detect and Multistreaming teconologies
Supports S/PDIF out interface
USB 12 USB 2.0/1.1 ports (6 ports at mid-board, 6 ports at back panel)
ASUS Unique Features - ASUS EPU-4 Engine
- ASUS Express Gate
- ASUS Turbo Key
- ASUS Q-Fan
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 2
- ASUS MyLogo 2
- ASUS AI NET 2

Overclocking Features SFS (Stepless Frequency Selection)
- FSB tuning from 200MHz to 550MHz at 1MHz increment
Adjustable DRAM Voltage
ASUS C.P.R.(CPU Parameter Recall)
Special Features All solid capacitor
Back Panel I/O Ports 1 x DVI
1 x VGA
1 x HDMI
1 x LAN(RJ45) port
6 x USB 2.0/1.1
8 -Channel Audio I/O
1 x Optical S/PDIF_OUT port
1 x PS/2 Mouse / Keyboard port
1 x eSATA
Internal I/O Connectors 3 x USB connectors supports additional 6 USB 2.0 ports
1 x IDE connector
5 x SATA connectors
1 x CPU Fan connector
1 x Chassis Fan connector
1 x Power Fan connector
1 x S/PDIF Out connector
1 x LPT connector
1 x System Panel connector
1 x COM connector
1 x CD audio-in connector
1 x High Definition Front panel audio connector
1 x 24-pin EATX power connector
1 x 4-pin ATX 12V Power connector

BIOS 8 Mb Flash ROM AMI BIOS, PnP, DMI v2.0, WfM2.0, ACPI v2.0a, SMBIOS 2.5

Accessories 1 x Serial ATA cable
1 x UltraDMA 133/100/66 cable
1 x I/O Shield
User"s manual
Support Disc Drivers
ASUS PC Probe II
Anti-virus software (OEM version)
ASUS LiveUpdate Utility

Form Factor uATX Form Factor
9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm )