Had one i7 rig down for a couple hours while I replaced my Gigabyte UD4P with an ASUS P6T. Put the Titan Fenrir on it (On the tech station) and she is running at 3.8 GHz instead of stock (had stock cooler on it).
Also had another i7 rig down for a day as I installed my Apogee on the Gigabyte X58 Extreme and added the NB waterblock in the loop. No leaks and running strong again.
So all 4 i7's are running at 3.8 GHz