How to stop VRM overheating on Maxsun B850M WIFI?

Every time a massive battle started, the game would just crash to desktop without a word, which was incredibly stressful. The VRM on the Maxsun MS-Terminator B850M WIFI was hitting a brutal 102℃ under peak loads, triggering the motherboard's emergency thermal shutdown. I tried lowering the graphics settings to ease the load, but while temps dropped 4℃, I was still crashing once an hour—it felt like I was fighting a losing battle. I ended up rigging a 4cm fan to blow directly onto the power phases and manually capped the PL1 power limit to 95W and PL2 to 120W in the BIOS. HWiNFO showed the VRM temps plummet from 102℃ down to 75-81℃, and the crashes stopped entirely. The only downside was a 6 FPS drop in minimums due to the power cap, but I managed to claw that back by enabling PBO auto-overclocking. CPU temps now hover around 68-74℃. After a 3-hour stress test, it's finally stable, and the input lag feels way more responsive now.
Category:Real-time Monitoring Last updated:March 27, 2026 9:48 AM