64 months ago
So I've had an H100i for a little over a year now, and I've always had a soft, constant hum in my system that I've never been able to put a finger to.
Build for reference: https://pcpartpicker.com/b/ywZLrH
It's not grinding, rattling, or buzzing. It's really just a very smooth humming noise that I really only notice in moments of pure silence. The problem is, in pure silence this singular hum draws more of my attention... I usually try to search for my answers, but there are relatively few results describing what I'm talking about.
I've been debating if it's just the regular operation noise of my PSU, cooler, or even just electrical hum from various components. It's definitely not fan noise though, as despite having quite a few fans in my build, the noise persists when I use ASUS Fan Xpert 2 to turn them off and set the CPU fans to rock bottom RPM.
The kicker is that the H100i block/pump unit itself is absolutely silent. To the ears, the hum seems to come from all around.