How to optimize VRM thermals on Maxsun MS-Challenger B850M-K?
This is honestly ridiculous. Every time the action peaks, the screen goes black and the PC reboots—it's like the motherboard is trolling me. The VRMs on the Maxsun MS-Challenger B850M-K were hitting 98-105C under full load, causing the voltage to dip below 1,1V and triggering a hard reset. I tried adding three extra case fans, but it only dropped the temp by 3C; the crashes didn't stop, which was just pathetic. I finally went into the BIOS and switched Vcore from Auto to a manual 1,25V and cranked the CPU fan curve to 100% all the time. In OCCT, the VRM finally stayed under 82-88C, and I managed two hours of gaming without a single power drop. I actually tried undervolting first to lower the heat, but the system just froze during map loads until I added 0,05V back. Now the CPU stays at 78-84C, and the fans sound like a jet engine, but at least it doesn't crash. Checked the Event Viewer logs and the fan speed is locked at 1400-1600RPM. It's loud, but stable.
