Fixing memory instability on Biostar B650MT for Dragon Age
Whenever I cast big area-of-effect spells, the game would have these tiny, annoying hitches that are absolutely lethal in an RPG. The memory controller on the Biostar B650MT was acting up with the EXPO profile enabled, and the SoC voltage was bouncing between 1.1V and 1.2V, causing random 15-30ms latency spikes. I tried closing every single background app in Windows, but that only helped by maybe 1%, which made me realize this was a hardware-level issue. I went into the BIOS, manually locked the SoC voltage at 1.25V, and dropped the RAM frequency to 5600MHz just to be safe. RTSS showed the frame intervals tighten from a wild 12-35ms to a stable 9-14ms. My CPU temp climbed by about 3 degrees after the voltage lock, so I had to tweak the PBO curve to bring it back down. The motherboard is running at 48-55℃. Comparison tests prove the memory latency is gone, and the board is still at 48-55℃.
