1: Got to Akt. 3 -> Quest 7 -> Part 3 ( Kill Azmodan )
2: Walk past all Mobs since you join Azmodans "Heart of sin" -> takes 1-2 minutes
3: Logg out
4:Log in and start farming. Everytime there is a Elitepack on the first 10 meteres. Sometimes there is a Goblin, too.
If you not find a goblin or elites, walk some meters to the west - they are there.
5: repeat step 3 - 4.
If you have enough gear you can kill Azmo with 1 Neph Stacks fast and get some extra Loot, but then you have to repeat from step 1 - 4 :/
Screenshot: ( ownedcore upload don't work for me :/ )
Directupload.net - eblgquwl.jpg
Have fun