I like silent PCs, short of going fanless. Been tinkering around with my latest build and have found: Loudest object is a Seagate 3TB drive that goes at 7200RPM - going to get rid of this as apparently this specific model had a 30% failure rate, coming up on 16000 hours. Combination of vibration noise and the whirl of the disks. Next loudest is a 4TB WD Red, fairly new about 3000 hours so not too keen on getting rid of this. Because it's an ITX build, limited space I can put HDDs, have this one placed on the bottom of the case with some felt pads. Even if I put it in the actual mount with the rubber gromets, can still hear the vibration resonate through the case and consequently noise generation via the whole case vibrating. I was looking at two solutions: Finding some ridiculous rubber pads that may or may not work. Replacing them with 2x2TB SSDs - at very great expense (I don't find the sense in spending more on 2 hard drives than the entire build). Is there anything else you can think of that I can do? (No NAS as NAS themselves are quite loud and expensive) I've already gone through and converted all the family videos down to H265 mp4 wiping off nearly a few hundred gb.