Is that high-pitched buzzing from my Valkyrie V360 Dracula during ZZZ normal or do I need to fix it?

Every time I loaded into a new district, this anxiety-inducing sizzling sound would come from the case, like a million tiny bubbles fighting in the pump. The Valkyrie V360 Dracula pump runs between 2800-3200 RPM, and that high-frequency resonance is amplified a thousand times in a quiet room at night. I tried dropping the pump speed to 60% in the BIOS, but while it got quieter, my CPU temp spiked from 65℃ to 88℃ instantly—trading performance for silence was a losing game. I eventually moved the radiator from the top to the front and tilted the chassis 15 degrees to force the air bubbles toward the top of the rad, then cycled the pump speed between 100% and 20% five times. A decibel meter showed idle noise dropping from 42dB to 31dB, and the whine vanished. For a second, I thought the pump bearing was shot, but it turned out I just hadn't tightened the cold plate screws enough, causing resonance. Now water temps are 34-38℃ and cores stay at 61-67℃. Noise analysis shows the peak frequency is gone, and the controls feel snappy again.