There are so many builds around this CPU in the forum and there are so many frequently asked questions...
The knowledge about the chip, the boards, cases and so on, it is scattered all over.
Let's make a list of all the E5 2670 builds. Single or dual CPU systems, doesn't matter.
Also let's list the most obvious questions and answer them.
Just post threads here, I will list alphabetically by username.
BUILDS:
@jtk2515
Dual E5 2670 - Dell T5610 - 64GB ECC RDDR3 - custom case (?)
@jwatson4701
Dual E5 2680 - Dell WN7Y6 - 64GB ECC RDDR3 - GTX970 - Phanteks Enthoo Pro
@KemoKa73
Dual E5 2670 - Asus Z9PE D8 WS - 24GB DDR3 - Radeon 7850
@marasm
Dual E5 2670 - Intel S2600CP - 64GB ECC RDDR3 - 4U rack case
@noenken
Dual E5 2670 - Asus Z9PE D8 WS - 64GB ECC RDDR3 - R9 Fury - Nanoxia Deep Silence 5 Rev. B
Dual E5 2670 - ASRock EP2C602 - 64GB ECC RDDR3 - Corsair 400Q
@robertfontaine
Dual E5 2670 - Supermicro X9DRG-QF - 32GB ECC RDDR3 - GTX580 - Cardboard Box (Stuff on order)
@wendell / Tek-Syndicate
Dual E5 2670 - Asus Z9PE D16 - 64GB ECC RDDR3 - RX 480 - Corsair 780T