Here are the technical specs from ECS.

CPU
AMD Phenom™ processor (Socket AM2+) / AMD Athlon™ 64 FX / Athlon™ 64 X2 Dual Core/ Athlon™ 64 / Sempron processor
High-performance HyperTransport 3.0 CPU Interface
Support transfer rate up to 5200 mega-transfers per second
CHIPSET
AMD® 790GX & AMD® SB750
North Bridge: AMD® 790GX
South Bridge: AMD® SB750
GRAPHICS
On Chip (AMD 790GX-based with ATI™ Radeon HD3300 graphics )
Integrated DirectX 10 graphics processor
AMD SidePort Memory : DDR2-800 (64Mx16=128MB)
MEMORY
Dual-channel DDR2 memory architecture
4 x 240-pin DDR2 DIMM socket support up to 32GB
Support DDR2 1066/800/667/533/400 DDR2 SDRAM *
*Currently ,the memory maximum size we have tested is 8 GB(2 GB per dimm)
EXPANSION SLOT
2 x PCI Express x16 slots
2 x PCI Express x1 slots
2 x PCI slots
STORAGE
Support by AMD SB750
6 x Serial ATAII 3.0Gb/s devices
RAID0, RAID1, RAID5, RAID 10 configuration
AUDIO
Realtek ALC 888S supports 8-channel HD audio
Compliant with HD specification
LAN
2 x Realtek RTL 8111C Gigabit Fast Ethernet NIC
REAR PANEL I/O
1 x PS/2 keyboard & PS/2 mouse connectors
6 x USB ports
2 x Gigabit Ethernet Port
1 x COM Port
1 x Audio port (1Line in, 4x Line out, 1 Optical SPDIF Out)
1 x VGA port
1 x HDMI Port
INTERNAL I/O CONNECTORS & HEADERS
1 x 24-pin ATX Power Supply Connector & 8-pin 12V Connector
1 x 4-pin 12V Connector
CPUFAN/PWRFAN/SYSFAN connectors
1 x FDD connector
1 x IDE connector
6 x Serial ATA connectors
1 x Speaker header
1 x Front panel switch/LED header
1 x Front panel audio header
1 x SPDIF out header
3 x USB 2.0 headers support additional 6 USB ports
1 x Power button/1 x Reset button
SYSTEM BIOS
AMI BIOS with 8Mb SPI Flash ROM
Supports Plug and Play, STR/STD, Hardware monitor, Multi Boot, DMI,HDCP
Supports ACPI revision 3.0 specification
Support over-clocking
ECS M.I.B. utility
FORM FACTOR
ATX Size 305mm*244mm

The ECS board's BIOS is fairly easy to tweak with different settings. Not very unique features here but definitely much more than what you'd get with a typical ECS motherboard.

We used an Athlon X2 4000+ and it overclocked fairly easily a couple hundred MHz. Nothing amazing but fairly good. Unfortunately we were unable to test Advanced Clock Calibration and in fact a major problem we had with the board was that none of our quad core Phenom processors were stable with this board. This of course could be a problem for people, we believe our board was just a fluke as we've seen a number of other reviews where they had no problems with Phenoms. Our Phenoms though definitely work great and have in the dozens of other Socket AM2 or AM2+ motherboard we've tested. The exact problem we're unsure of though, perhaps better quality capacitors might have helped. The X2 however we didn't encounter issues with this but it does raise some concerns of the past of ECS quality.