I'm a little concerned about my H50. Unfortunately, it randomly starts to buzz for extended periods of time - Loudly i.e. I can hear it above my fans at full speed. I've looked around online, and several forums have recommended people RMA it - I'd like to avoid this if possible. Others have said there may be air bubbles in the system, though I have no idea how. I saw some posts suggesting that it might be to do with orientation, and/or the relative heights of the pump and the radiator. So, I shut down, laid my case on its side, booted, and... so far so good as the noise coming from it is barely audible. However, I'm sceptical, as it doesn't usually start to vibrate immediately, and can take several hours before it starts... and I can't leave it on its side forever. Attached a photo below - anything wrong with the orientation, etc? Other random info/thoughts: In case it matters, the temps are fine, barely breaking 55C under full load with P95/IBT (I'm temporarily using stock speeds for my 980X). Could overtightened screws on the mount cause this? This is my first time using any form of water cooling, so if anyone that is (even a little bit) more clued up on the quirks has any advice, I'd appreciate it. Cheers!