My Huntkey T600 is vibrating and causing temp swings in Enshrouded. How do I stop this?

While exploring the mist, my cooler started making this low-frequency humming noise, and my CPU temps began swinging wildly between 70-85℃. It was super distracting in a quiet room. The Huntkey T600 fans hit a resonance point around 1500 RPM that vibrated against the chassis, messing up the airflow and causing those periodic temp spikes. I tried lowering the fan speed in software, but then the temps just shot up to 90℃—that was a failed experiment. I eventually flipped the fan orientation to a push-pull config and locked the speeds between 1400-1700 RPM. HWMonitor showed the temp swing range shrinking from 15℃ down to just 4℃. It's incredibly stable now. I did notice a slight drop in intake after the flip, but a quick clean of the front dust filters fixed it. Now the CPU stays between 65-72℃ and the noise is totally acceptable. Stress tests show peaks are well under the limit, and RAM is staying cool at 52-57℃.