How to fix thermal throttling on PCCOOLER RT620P in Elden Ring?

Those sudden 1% low frame drops during combat absolutely killed the fluidity of the game. It wasn't until I noticed my CPU idling near 95°C that I realized I was dealing with a thermal disaster. The RT620P should have been plenty, but the stock paste was applied unevenly, meaning the heat couldn't migrate to the base fast enough, triggering aggressive hardware throttling. I tried a desperation move by capping the maximum processor state to 99% in Windows; temps dropped to 80°C, but my FPS tanked from 60 to 48, which was a complete dealbreaker. I ended up ripping the cooler off, applying high-conductivity phase-change thermal paste, and recalibrating the diagonal pressure of the brackets. Checking RTSS, the frame time variance shrunk from a wild 16-45ms down to a tight 13-17ms. The game is finally buttery smooth. I actually messed up the fan header on the first reboot and the fans didn't spin at all, but a quick reseat of the 4-pin connector fixed it. Core temps now sit comfortably between 72-78°C. A 2-hour stress test confirmed no more throttling, with VRM/Memory temps holding at 58-63°C.
Category:Troubleshooting Last updated:February 19, 2026 12:49 PM