Fixing thermal throttling on Ryzen 7 9800X3D with PA120 SE?
The difference in thermal response after this tweak is insane. Before, during heavy fights, my CPU would spike to 95℃, causing clocks to tank from 5.2GHz to 3.8GHz—absolutely lethal for an open-world game. The PA120 SE's default curve is way too conservative, staying at 1000 RPM until 80℃, which just let heat soak into the cores. I tried Windows 'High Performance' mode first, but while clocks were more stable, temps stayed above 90℃; software tweaks just weren't cutting it. I rebooted into BIOS and set a stepped fan curve, jumping straight to 1800 RPM at 75℃. HWMonitor showed peak temps drop from 95℃ to a manageable 78-82℃, and the throttling stopped. At first, the fans sounded like a jet engine, but I dialed back the 85℃+ speed to 1600 RPM to find a balance. Now it stays at 72-78℃. Stress tests confirm no more downclocking, and frame times are stable at 5.1-6.4ms.
