How to calibrate RAM timings for Fortnite on B550MHP?
I was seeing these nasty horizontal tear lines across my screen, which made the fast-paced building in Fortnite a complete nightmare. Looking at the logs, the Biostar B550MHP's default memory timings were causing random latency spikes between 15-22ns during high-speed data swaps. My first instinct was to turn on V-Sync, but that was a disaster—input lag jumped to 45ms, and it felt like I was playing in quicksand. I went back into the BIOS, hit the Advanced Memory settings, and manually locked the primary timings to 16-18-18-36, while bumping the DRAM voltage from 1.2V to 1.35V. In the RTSS frame time graph, the wild 20-40ms swings flattened out into a smooth 12-16ms window, and the tearing just vanished. I did blue-screen twice while trying to tighten the timings initially, but loosening the tRAS from 36 to 40 finally stabilized the system. RAM temps sat between 48-54℃, and signal interference was well within limits. AIDA64 stress tests came back with zero errors, and the 48-54℃ temp range remained stable.
