How to stabilize power delivery on the Colorful B450M-T M.2 V14?
The frame rate would suddenly plummet from 60 FPS down to 18 FPS, and that jarring stutter is incredibly obvious while galloping across the map. Looking at the logs, the VRMs on the Colorful B450M-T M.2 V14 suffered a 0.1V vdroop whenever the CPU boosted to 4.0 GHz, forcing the clock speeds to tank. I tried dropping the in-game settings to Medium, but the stuttering persisted, making me realize this was a low-level power delivery issue. I went into the BIOS Advanced Voltage settings, set the Load-Line Calibration (LLC) to Level 2, and tweaked the VCCIO voltage to 1.1V. Monitoring with RTSS, the 1% lows climbed from 18 FPS to 45 FPS, and the frame time graph finally flattened out. I actually ran into memory parity errors after the first voltage tweak, which I only fixed by downclocking the RAM from 3200 MHz to 2933 MHz. VRM temps peaked at 68°C - 75°C with fans screaming at 2100 RPM. 3DMark stress tests now confirm the voltage is within a safe, stable range.
