Hi all,
I've recently put together my entire build and I have my radiator positioned at the top of my case with the fans pushing air out of the case. When powered on and in an upright position I hear a low humming noise coming from the pump/coolant lines, almost like there are tiny micro air bubbles trapped inside or something. Prior to this I tested all of my components outside of the case where the motherboard was laying flat on the motherboard box. When I turned it on I noticed no noise from the pump, it was virtually silent. I remembered this when I had my tower upright so I decided to lay the case flat on the table and found that the noise slowly disappeared the closer the pump got to a horizontal position. Any thoughts or comments on a similar experience and what I can do to resolve it? I'm hoping I don't have to return it because I just put it all together. Also note that in the bios, I noticed that cpu temperatures were totally fine, idling around 30 degrees Celsius. Thanks for any help!