In Lost Ark raids, my Maxsun MS-Challenger B850M-K VRMs overheat and throttle. Need cooling?

During intense raid fights, I noticed my FPS would slowly start to bleed out after about 30 minutes. It was a subtle but annoying performance dip. The VRMs on the Maxsun MS-Challenger B850M-K were hitting 92-98℃, which triggered the CPU's thermal protection and forced a downclock. I tried lowering the graphics settings to reduce the load, but that just made the game look like a potato without fixing the root cause. I ended up rigging a small active fan directly onto the VRM heatsinks and synced the fan curve to the VRM temp sensor. In AIDA64 FPU tests, the peak core temp dropped from 88℃ to a steady 75-80℃, and frame times locked in at 12-16ms. I actually had some annoying case vibration after adding the fan, but some rubber dampeners sorted it out. CPU power is 90-110W and VRMs are now 72-78℃. 3DMark confirms no more throttling.