How to manage thermals on Maxsun MS-eSport B850ITX WIFI ICE?
This ITX board is basically a space heater. Every time a fight got intense, the whole system would just black screen and reboot. My sensors showed the VRM temps skyrocketing from 60℃ to 105℃ in five minutes, triggering a hardware shutdown. I tried slapping two 120mm fans on the top of the case, but the air wasn't even hitting the VRMs—it was a total waste of effort. I eventually went into the BIOS and capped the CPU power limit (PL1/PL2) from 125W down to 95W and set a crazy fan curve that hits 100% at 60℃. In AIDA64 FPU stress tests, the VRMs finally stayed under 82-88℃, and the crashes stopped completely. I lost about 0.2GHz in single-core boost, but the FPS only dropped by 2 frames, which is a trade-off I'll take any day. CPU cores are now 75-81℃ and total power is 88-92W. I exported the crash logs and temp curves to verify, and the frame times are now a stable 5.1-6.4ms.
