If I remember correctly, the 70mm TMD fan on the Aeroflow is of spotty quality. I have heard many stories about these fans failing quite often, even when new. I haven't heard much about this lately, so they might have fixed the problem. Besides all of that, you shouldn't have any problems if you have the HS/F mounted correctly (probably a good idea to have some kind of support on the card so it doesnt bend and damage the card).