Hi all. Just bought myself 2 of these in the dual pack for my H60 rad. They are quite noisy running them ay 12v and 2000 rpm so i decided to use the voltage step down adapter 7v. They now run at 1700 rpm and still they have shaved 5 degrees off my temps. I think Corsair are going to sell a crap load of these. Please, what are your adventures like using these fans?