@ Dee - You do need some active cooling, even when running 1.9 - 2.0v I use it. You don't want to risk hurting your ram. I have 2 x 80mm fans running at 70% duty cycle and they are no louder than the 120mm fans I have for cpu (each running ~1300rpm) & case and the 140mm blowhole fan on low (~1000rpm).

I have to re-do the fans for the ram though they are too far away and are supported by cable ties as I've been swapping ram in & out a lot recently.