How to stop CPU throttling on ASRock B450M-HDV R4.0 in Nioh?
The combat went from fluid to a literal slideshow, which is a nightmare when you're fighting high-difficulty bosses. Checking the logs, the VRM area on the ASRock B450M-HDV R4.0 was hitting 105-110℃ under load, forcing the CPU clock to tank from 3.6GHz down to a pathetic 0.8GHz. I tried the 'High Performance' power plan first, but that just pumped more heat into the VRMs and triggered the throttling even faster—total fail. I ended up gluing three small aluminum heatsinks directly onto the chokes and navigated to the BIOS, then OC Tweaker, where I capped the CPU TDP at 65W to stop it from boosting too aggressively. According to HWInfo, VRM temps dropped to a manageable 82-88℃, and the clock finally stabilized around 3.2GHz. I actually knocked a capacitor loose while installing the heatsinks, causing a boot failure, but it's fine now after a quick fix. CPU temps are hovering at 72-78℃ with fans at 2200 RPM. Stress tests confirm the clocks aren't jumping anymore; the thermal bug is finally dead.
