Esto es lo ultimo que salio al mercado, vale la pena ?
eVGA Classified SR-2 270-WS-W555-A1 Socket 1366 Box
Especificaciones Model
Brand EVGA
Model 270-WS-W555-A1
Supported CPU
CPU Socket Type LGA 1366
CPU Type Supports Dual Socket 1366 Intel Xeon 5600 and 5500 Processors
Chipsets
North Bridge Intel 5520
South Bridge Intel ICH10R
Memory
Number of Memory Slots 12×240pin
Memory Standard DDR3 2000 (OC)/1866 (OC)/1600 (OC)/1333/1066
Maximum Memory Supported 48GB
Channel Supported Triple Channel
Expansion Slots
PCI Express 2.0 x16 7
Storage Devices
PATA 1 x ATA133 2 Dev. Max
SATA 3Gb/s 6
SATA 6Gb/s 2 x SATA 6Gb/s
Onboard Video
Onboard Video Chipset None
Onboard Audio
Audio Channels 8 Channels
Onboard LAN
Max LAN Speed Dual 10/100/1000Mbps
Rear Panel Ports
PS/2 1
USB 1.1/2.0 6 x USB 2.0
USB 3.0 2 x USB 3.0
eSATA 2 x eSATA 3Gb/s
Audio Ports 6 Ports
Onboard USB
Onboard USB 4 x USB 2.0
Physical Spec
Form Factor HPTX
Dimensions 15.0" x 13.6"
Power Pin 24 Pin
Features
Features NVIDIA SLI Technology
Dramatically scales performance by allowing two graphics cards to be run in parallel. Only available on select PCI-Express models.
USB 2.0 Support
A standard plug and play interface providing easy-to-use connectivity for USB devices.
PCI Express 2.0 / 1.1 Support
Allows 500MB a lane or up to 8 GB/s at 16x speeds - allows for full support for new PCI-E 2.0 graphics cards.
Serial ATA II
Also known as SATA2, features a 3.0 Gbit/s transfer speed, faster than Standard Serial ATA.
Solid Capacitors
Offers a longer lifespan, better stability when at high frequencies, can operate at higher temperatures, and no longer runs the risk of exploding.
On-Board Clear CMOS Button
An onboard clear CMOS button which allows you to easily clear your BIOS without moving a jumper.
On-Board Power Button with Integrated Power Light
An onboard power button for easily powering on or off your system. Also shows a power indication light.
On-Board Reset Button with Integrated HDD Activity Light
An onboard reset button for easily rebooting your system as well as gives current status of your HDD via an activity light.
On-Board Diagnostics LED Readout
Helpful for when diagnosing a problem is needed.
2-Way SLI Support
Feel free to turn up the eye candy and experience the performance of 2 Graphics Cards running together.
3-Way SLI Support
Experience the amazing performance that only 3 Graphics Cards can deliver, a visual experience that will take you to the next level.
4-Way SLI Support
Windows XP Support
Windows Vista / Windows 7 Support
DDR3 Support
Full support for the latest in DDR technologies.
Triple-Channel Support
Supports Triple-Channel memory configurations for extreme amounts of system memory bandwidth.
Dual-Channel Support
Supports Dual-Channel memory configurations for increased amounts of system memory bandwidth.
300% more gold content in the CPU socket
Supports EVGA's EVbot
8 Phase Digital
Precio : U$S 960 
Base y compra :
http://articulo.mercadolibre.com.ar/MLA-94313823-motherboards-evga-classified-sr-2-270-ws-w555-a1-socket-1366-_JMOtra :
http://originpc.com/thebigo-config.asp 
