Optimizing PCcooler RT620P thermal efficiency for Pacific Drive
Driving through a storm, my frame rate would suddenly tank from 80 FPS to 45 FPS, making the car nearly impossible to handle. I noticed the CPU was jumping between 82℃ - 87℃, triggering some light throttling. I tried limiting the max CPU frequency in software, but that just cost me 10 FPS overall, which was a dealbreaker. Then I actually looked at the RT620P installation and realized the rear fan was installed backward, just swirling hot air around the case. After flipping the fan and applying a -0.05V voltage offset, core temps plummeted to 64℃ - 70℃ and frame times stabilized at 11-13ms. I did have one scary black screen when I first applied the offset, so I had to dial it back to -0.03V for total stability. Fan speed is holding at 1300 RPM. Comparing the frame curves, the performance mode switch was a total game-changer.
