I tried 3 different H50, all the pumps were loud at 12V. I don't think Mike's H50 was defective. Still, if you compromise, they can be very quiet. In my setup, the pump runs full speed during boot which is absolutely necessary during a cold boot. When speedfan loads up, the pump is severely undervol...

I corrected my post, you need vdroop on. I tends to stop the buzzing when scroling webpages. Regardless of that, theres also an article on anandtech saying you should have it on.

For this, I’m going to group coil buzz and coil whine together. I have finally solved my coil whine problem, but it took me a lot of time to get here. You will have to draw your own conclusions because I never had any intentions to document my experiences. But, I still hope it helps someone. I tri...