Hello there,
I installed a new H60 (2018 edition) into my system (MSI Z170A Gaming Pro Carbon motherboard, i7 6700K is the CPU). The unit is installed in the normal orientation, with two Noctua fans in push/pull, exhausting warm air out of the back of the case. Picture: https://imgur.com/WxgegpJ. The reason I'm going for a 120 mm AIO is because the case itself is quite cramped. Thermally, everything seemed okay. My temperature peaks stay below 80C, even after running the most demanding stress tests (Prime95, Realbench, ...).
The pump block, however had been making a sound I can only describe like an old HDD. A non-rhythmic rattle, like you're reading data off an old drive. It's not a continuous monotonous buzz, it's more ... sparkly? My English language knowledge fails me here :) I double checked the connections, wiggled the tubes a bit, tried different SATA power headers, ... The RPM reported for the pump is 4050-4100, which seems desirable. There's no way to adjust RPM speed for the pump on this new H60 model anyway (probably for good reason).
Since I thought this noise wasn't normal and I must have gotten a defective product, I sent the unit in for replacement with my retailer, and got a new one the next day.
After installing the newly arrived unit, in the same way, I get the same noise. To be 100% sure it's not from another source, I went into BIOS and manually stopped all my fans - it's definitely the pump. Tilting my case to the right at about 45 degrees gets rid of the problem, which increases my suspicion it's air bubble related.
Anyone with similar experiences? Should I just wait and let it "settle"? I've read things about getting the unit out and shaking it all about? Letting the case run on it's side (isn't that ... dangerous?))?
I know the H60 isn't exactly the flagship cooler, but I still paid good money for it - would like to have it running silently/