How do I stop VRM thermal throttling on the Onda B760ITX-B4?
The input lag becomes unbearable in the late game; it feels like the whole world is moving in slow motion. Because the Onda B760ITX-B4 is such a cramped ITX board, the VRMs were hitting 94,0 - 102,0°C under full load, which forced the CPU boost clock to tank from 5,0GHz down to 4,1GHz. I tried cranking my case fans to 100%, but that was just a loud mistake—noise went through the roof and temps only dropped by 2,0°C. I had to get technical. I went into the BIOS and switched the Vcore voltage from 'Auto' to a manual 1,22V and changed the VRM fan curve to be directly linked to the MOSFET temperature sensor. Checking HWInfo, the VRM temps finally stabilized between 78,0 - 84,0°C, and my boost clocks stayed above 4,7GHz. I did run into a weird issue where the fans had a slight resonance hum at low speeds, which I only fixed after adding some rubber gaskets. CPU temps are now sitting at a comfortable 65,0 - 71,0°C. After three hours of nonstop gaming, there are zero clock fluctuations. Finally fixed this headache.
